JP2020525214A - Surgical cutting and fastening device with a pivotable anvil having a tissue positioning arrangement proximate to the anvil pivot axis - Google Patents

Abstract

A surgical instrument comprising a first jaw and a second jaw pivotally attached to the first jaw. At least one tissue positioning element of the second jaw extends downward beyond the second surface of the second jaw, with the first surface of the first jaw and the second surface of the second jaw. It is configured to prevent the tissue received in between from extending proximally beyond the distal end portion of at least one tissue positioning element. When the second jaw is in the fully open position, the distal end portion of each tissue positioning element is arranged to prevent a gap between them with respect to the corresponding portion of the first surface and the second The jaw opening angle between the first surface and the second surface when the jaws are in the fully open position is greater than 12.25 ° C.

Description

The present invention relates to surgical instruments and, in various situations, to surgical stapling and cutting instruments designed for stapling and cutting tissue and staple cartridges for use therewith.

Various features of the embodiments described herein, as well as their advantages, can be understood by the following description in conjunction with the accompanying drawings.
FIG. 2 is a side view of a surgical system including a handle assembly and a plurality of replaceable surgical tool assemblies that can be used with the handle assembly. 2 is an exploded view of one of the handle assembly and replaceable surgical tool assembly shown in FIG. 1. FIG. 2 is a perspective view of one of the replaceable surgical tool assemblies of FIG. 1. FIG. FIG. 4 is an exploded view of the replaceable surgical tool assembly of FIG. 3. FIG. 5 is another exploded view of the distal portion of the replaceable surgical tool assembly of FIGS. 3 and 4. FIG. 6 is another exploded view of the distal portion of the replaceable surgical tool assembly of FIGS. 3-5. FIG. 7 is an exploded view of the proximal portion of the replaceable surgical tool assembly of FIGS. 3-6. FIG. 8 is another exploded view of a portion of the replaceable surgical tool assembly of FIGS. 3-7. FIG. 9 is another exploded view of a portion of the replaceable surgical tool assembly of FIGS. 3-8. FIG. 10 is a perspective view of a proximal portion of the replaceable surgical tool assembly of FIGS. 3-9. FIG. 11 is another perspective view of the proximal portion of the replaceable surgical tool assembly of FIGS. 3-10. FIG. 12 is a cross-sectional perspective view of a proximal portion of the replaceable surgical tool assembly of FIGS. 3-11. FIG. 13 is another cross-sectional perspective view of the proximal portion of the replaceable surgical tool assembly of FIGS. 3-12. FIG. 14 is another cross-sectional perspective view of the proximal portion of the replaceable surgical tool assembly of FIGS. 3-13. FIG. 15 is a cross-sectional perspective view of the distal portion of the replaceable surgical tool assembly of FIGS. 3-14. 2 is a perspective view of another one of the replaceable surgical tool assemblies shown in FIG. 1. FIG. FIG. 17 is an exploded view of the proximal portion of the replaceable surgical tool assembly of FIG. 16. FIG. 18 is another exploded view of the distal portion of the replaceable surgical tool assembly of FIGS. 16 and 17. 2 is a perspective view of another one of the replaceable surgical tool assemblies of FIG. 1. FIG. FIG. 20 is an exploded view of a proximal portion of the replaceable surgical tool assembly of FIG. 19. FIG. 21 is another exploded view of the distal portion of the replaceable surgical tool assembly of FIGS. 19 and 20. FIG. 3 is another perspective view of the replaceable surgical tool assembly of FIG. 1. 23 is an exploded view of the proximal portion of the replaceable surgical tool assembly of FIG. 22. FIG. FIG. 24 is another exploded view of the distal portion of the replaceable surgical tool assembly of FIGS. 22 and 23. 4 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 3 with the anvil in a fully closed position. FIG. 26 is an enlarged side view of the anvil attachment portion and elongate channel of the replaceable surgical tool assembly of FIG. 25. FIG. 17 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 16 with the anvil in the fully closed position. FIG. 28 is an enlarged side view of the anvil attachment portion and elongated channel of the replaceable surgical tool assembly of FIG. 27. FIG. 20 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 19 with the anvil in the fully closed position. 30 is an enlarged side view of the anvil attachment portion and elongated channel of the replaceable surgical tool assembly of FIG. 29. FIG. 23 is a side view of a distal portion of the replaceable surgical tool assembly of FIG. 22 with the anvil in a fully closed position. FIG. 32 is an enlarged side view of the anvil attachment portion and elongated channel of the replaceable surgical tool assembly of FIG. 31. FIG. 4 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 3 with the anvil in the fully open position. FIG. 17 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 16 with the anvil in the fully open position. FIG. 20 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 19 with the anvil in the fully open position. FIG. 23 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 22 with the anvil in the fully open position. FIG. 8 is a side view of the distal portion of another replaceable surgical tool assembly with the anvil shown in solid line in one open position and in phantom line in another open position. FIG. 9 is a side view of the distal portion of another replaceable surgical tool assembly with the anvil in the fully open position. FIG. 4 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 3 with the anvil in the fully open position. 40 is an enlarged side view of the anvil attachment portion and elongate channel of the replaceable surgical tool assembly of FIG. 39. FIG. FIG. 41 is a side view of the distal portion of the replaceable surgical tool assembly of FIGS. 39 and 40 with the anvil in the fully closed position. 17 is an enlarged side view of the anvil attachment portion and elongated channel portion of the replaceable surgical tool assembly of FIG. 16 with the anvil in a fully open position. 43 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 42 with the anvil in the fully closed position. FIG. 20 is an enlarged side view of the anvil attachment portion and elongate channel of the replaceable surgical tool assembly of FIG. 19 with the anvil in the fully open position. FIG. 45 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 44 with the anvil in the fully closed position. 23 is an enlarged side view of the anvil attachment portion and elongate channel portion of the replaceable surgical tool assembly of FIG. 22 with the anvil in a fully open position. FIG. 47 is a side view of the distal portion of the replaceable surgical tool assembly of FIG. 46 with the anvil in the fully closed position. 4 is a partial cross-sectional view of the anvil attachment portion and elongate channel of the replaceable surgical tool assembly of FIG. 3 with the anvil in a fully open position. 17 is a partial cross-sectional view of the anvil attachment portion and elongate channel portion of the replaceable surgical tool assembly of FIG. 16 with the anvil in a fully open position. FIG. 20 is a partial cross-sectional view of the anvil attachment portion and elongate channel of the replaceable surgical tool assembly of FIG. 19 with the anvil in the fully open position. 23 is a partial cross-sectional view of the anvil attachment portion and elongate channel of the replaceable surgical tool assembly of FIG. 22 with the anvil in a fully open position. FIG. 4 is another partial cross-sectional view of a portion of the replaceable surgical tool assembly of FIG. 3 with the surgical end effector anvil in a fully open position. FIG. 53 is another partial cross-sectional view of a portion of the replaceable surgical tool assembly of FIG. 52 with the anvil in the fully closed position. FIG. 17 is another partial cross-sectional view of a portion of the replaceable surgical tool assembly of FIG. 16 with the anvil in the fully open position. FIG. 20 is another partial cross-sectional view of a portion of the replaceable surgical tool assembly of FIG. 19 with the anvil in the fully open position. 23 is another partial cross-sectional view of a portion of the replaceable surgical tool assembly of FIG. 22 with the anvil in a fully open position. FIG. 4 is another partial cross-sectional view of a portion of the replaceable surgical tool assembly of FIG. 3 with the firing member in a starting position. FIG. 58 is a side view of the surgical end effector of FIG. 57 with the anvil in a fully closed position. FIG. 59 is another partial cross-sectional view of a portion of the surgical end effector of FIGS. 57 and 58 with the firing member in initial engagement with the anvil. FIG. 59 is another partial cross-sectional view of the surgical end effector of FIGS. 57 and 58 with the firing member being advanced distally in the firing process. A firing member assembly of a surgical stapling instrument having a first firing member element and a second firing member element movable relative to the first firing member element between a locked position and an unlocked position. It is a perspective view of a part. FIG. 60B is another perspective view of the firing member assembly of FIG. 60A with the second firing member element in the locked position. FIG. 60B is a cross-sectional view of the surgical stapling instrument of FIG. 60A with the firing member element in the starting position. FIG. 60C is another cross-sectional view of the surgical stapling instrument of FIG. 60C shown in a lockout configuration. FIG. 6 is a side view of a firing member assembly with a second firing member element in a lockout direction. FIG. 60E is another side view of the firing member assembly of FIG. 60E with the second firing member element in the unlocked position or firing direction. FIG. 60B is another partial perspective view of the surgical stapling instrument of FIG. 60A shown in an unlocked configuration. FIG. 60B is a cross-sectional view of the surgical stapling instrument of FIG. 60A with an unfired surgical fastening element cartridge operably supported in the elongated channel and the firing member assembly shown in a starting position. FIG. 60H is another cross-sectional view of the surgical stapling instrument of FIG. 60H with the firing member assembly shown in a partial firing configuration. FIG. 61 is another side view of the surgical end effector of FIGS. 57-60 with the anvil in the overclosed position. 4 is a partial side view of the surgical end effector of the replaceable surgical tool assembly of FIG. 3 in a fully open position with the distal closure tube portion shown in phantom to show the anvil retention member. FIG. FIG. 63 is another partial side view of the surgical end effector of FIG. 62 with the anvil in a fully closed position. 4 is a partial perspective view of the distal closure tube portion of the replaceable surgical tool assembly of FIG. 3 with the anvil in a fully closed position. FIG. 65 is a plan view of the distal closure tube portion and anvil of FIG. 64. FIG. 66 is a partial cross-sectional view of the anvil and distal closure tube portions of FIGS. 64 and 65 showing the position of the proximal jaw opening feature when the anvil is in the fully closed position. FIG. 67 is another partial cross-sectional view of a portion of the anvil and distal closure tube portion of FIGS. 64-66 showing the position of the proximal jaw opening mechanism when the anvil is between the fully open and fully closed positions. .. FIG. 68 is another partial cross-sectional view of a portion of the anvil and distal closure tube portion of FIGS. 64-67 showing the position of the proximal jaw opening feature when the anvil is in the fully open position. FIG. 69 is a partial cross-sectional view of the anvil and distal closure tube portion of FIGS. 64-68 showing the position of the distal jaw opening feature when the anvil is in the fully closed position. FIG. 70 is a partial cross-sectional view of the anvil and distal closure tube portion of FIGS. 64-69 showing the position of the distal jaw opening feature when the anvil is between the fully open and fully closed positions. FIG. 71 is another partial cross-sectional view of a portion of the anvil and distal closure tube portion of FIGS. 64-70 showing the position of the distal jaw opening feature when the anvil is in the fully open position. FIG. 72 is a partial left side perspective view of the anvil and distal closure tube portion of FIGS. 64-71 with the anvil in a fully closed position. FIG. 73 is a partial right side perspective view of the anvil and distal closure tube portion of FIGS. 64-72 with the anvil in a fully closed position. FIG. 74 is a partial left side perspective view of the anvil and distal closure tube portion of FIGS. 64-73 with the anvil in a partially open position. FIG. 75 is a partial right side perspective view of the anvil and distal closure tube portion of FIGS. 64-74 with the anvil in a partially open position. FIG. 76 is a partial left side perspective view of the anvil and distal closure tube portion of FIGS. 64-75 with the anvil in a fully open position. FIG. 77 is a partial right side perspective view of the anvil and distal closure tube portion of FIGS. 64-76 with the anvil in a fully open position. FIG. 78 is a graphical comparison between jaw opening angle and receding amount of the distal closure tube portion of FIGS. 64-77.

Corresponding reference characters indicate corresponding parts throughout the several views. The illustrations provided herein are illustrative of the various embodiments of the invention in one form, and such illustrations should not be construed as limiting the scope of the invention in any way. Absent.

The applicant of this application has the following US patent applications filed on the same date as this application, the entire contents of each of which are incorporated herein by reference.
-U.S. Patent Application No. ______, title of the invention "SURGICAL INSTRUMENT COMPRISING AN OFFSET ARTICULATION JOINT", Agent Serial No. END8207USNP/17098,
-U.S. Patent Application No. _________, title of the invention "SURGICAL INSTRUMENT COMPRISING AN ARTICULATION SYSTEM RATIO", Attorney Docket No. END8210USNP/17099,
-U.S. Patent Application No. _________, title of the invention "SURGICAL INSTRUMENT COMPRISING AN ARTICULATION SYSTEM RATIO", Attorney Docket No. END8204USNP/170100,
-U.S. Patent Application No. _________, title of the invention "SURGICAL INSTRUMENT COMPRISING FIRING MEMBER SUPPORTS", Attorney Docket No. END8218USNP/170101,
-U.S. Patent Application No. _________, title of the invention "SURGICAL INSTRUMENT COMPRISING AN ARTICULATION SYSTEM LOCKABLE TO A FRAME", Attorney Docket No. END8217USNP/070102,
-U.S. Patent Application No. ______, title of the invention "SURGICAL INSTRUMENT COMPRISING AN ARTICULATION SYSTEM LOCKABLE BY A CLOSEURE SYSTEM", Attorney Docket No. END8211USNP/170103,
-U.S. Patent Application No. _________, title of the invention "SURGICAL INSTRUMENT COMPRISING A SHAFT INCLUDING A HOUSING ARRANGEMENT", Attorney Docket No. END8215USNP/170107,
-U.S. Patent Application No. __________, title of the invention "SURGICAL INSTRUMENT COMPRISING SELECTIVELY ACTUATABLE ROTABLE COUPLERS", Attorney Docket No. END8201USNP/170104,
-U.S. Patent Application No. _________, title of the invention "SURGICAL STAPLING INSTRUMENTS COMPRISING SHORTENED STAPLE CARTRIDGE NOSES", Attorney Docket No. END8206USNP/170105,
-U.S. patent application No. _________, title of invention "SURGICAL INSTRUMENT COMPRISING A SHAFT INCLUDING A CLOSE PROFILE", Attorney Docket No. END8212USNP/170106,
-U.S. Patent Application No. ___________, title of the invention "METHOD FOR ARTICULTING A SURGICAL INSTRUMENT", Attorney Docket No. END8200USNP/170089M,
-U.S. Patent Application No. __________, title of invention "SURGICAL INSTRUMENTS WITH ARTICULATABLE END EFFECTOR WITH AXIALLY SHORTENED ARTICURATION NO.
-U.S. Patent Application No. _____________, Title of Invention "SURGICAL INSTRUMENTS WITH OPEN AND CLOSEABLE JAWS AND AXIALLY MOVABLE FIRING MEMORY POR EYE NUMBER IN PARALLE NUMBER, INITIALLY POR EYE, PAIR NUMBER, CONTINUE POR EYE NAME, PART NUMBER, INITIALLY POR EYE, POR EYE, PAIR NUMBER, NUMBER OF WORKS, NUMBER OF WORKS, NUMBER OF PRINTS, NUMBER OF PRINTING, NUMBER OF NUMBERS, NUMBER OF PICTURES, NUMBER OF PICTURES, NUMBER OF NUMBERS, NUMBER OF NUMBERS, NUMBER OF NUMBERS, NUMBER OF NUMBERS, PRIOR NUMBERS.
-U.S. Patent Application No. ___________, Title of Invention "SURGICAL INSTRUMENTS WITH JAWS CONSTRAINED TO PIVOT ABOUT AN AXIS UPON CONTACT US PITROI THAT IMAGE WHITE CROSSURE MEMORY PIT WHITE CROSSURE MEMORY PIT WHITE CROSS MEMORY PIT WHITE CROSS MEMORY PIT WHITE, PRIME PRIME, WHITE JOIN, WHITE JOIN, WHITE JOIN, WHITE JOIN, WHITE JOIN, WHITE JOIN, WHITE JOIN, WHITE JOIN, NO.
-U.S. Patent Application No. _________, title of the invention "SURGICAL END EFFECTORS WITH IMPROVED JAW APERTURE ARRANGEMENTS", Attorney Docket No. END8203USNP/170093,
-US Patent Application No. _____________, Title of Invention "JAW RETAINER ARRANGEMENT FOR RETAINING A PIVOTABLE SURGICAL INSTRUMENT JAW IN PIVOUBLEING REGAIN U.S.N.
-U.S. Patent Application No. _________, title of the invention "SURGICAL INSTRUMENT WITH POSITIVE JAW OPENING FEATURES", Attorney Docket No. END8208USNP/1700096,
-U.S. Patent Application No. __________, title of the invention "SURGICAL INSTRUMENT WITH AXIALLY MOVABLE CLOSE MEMBER", Attorney Docket No. END8209USNP/170097,
-U.S. Patent Application No. _________, title of the invention "SURGICAL INSTRUMENT LOCKOUT ARRANGEMENT", Attorney Docket No. END8233USNP/170084,
-U.S. design patent application No. _________, title of invention "STAPLE FORMING ANVIL", Attorney Docket No. END8236USDP/170109D,
-U.S. design patent application No. _____, invention title "SURGICAL INSTRUMENT SHAFT", agent serial number END8239USDP/170108D, and-US design patent application No. ________, invention name "SURGICAL FASTENER CARTRIDGE", agent rearrangement Number END8240USDP/170110D.

The applicant of the present application owns the following US patent applications filed on June 27, 2017, the entire contents of each of which is incorporated herein by reference.
-U.S. Patent Application No. __________, title of the invention "SURGICAL ANVIL MANUFACTURING METHODS", Attorney Docket No. END8165USNP/170079M,
-U.S. Patent Application No. __________, title of the invention "SURGICAL ANVIL ARRANGEMENTS", Attorney Docket No. END8168USNP/170080,
-U.S. Patent Application No. _________, title of the invention "SURGICAL ANVIL ARRANGEMENTS", Attorney Docket No. END8170USNP/170081,
-U.S. Patent Application No. _________, title of the invention "SURGICAL ANVIL ARRANGEMENTS", Attorney Docket No. END8164USNP/170082,
-U.S. Patent Application No. _________, title of the invention "SURGICAL FIRING MEMBER ARRANGEMENTS", Attorney Docket No. END8169USNP/170083,
-U.S. Patent Application No. __________, title of the invention "STAPLE FORMING POCKET ARRANGEMENTS", Attorney Docket No. END8167USNP/170085,
-U.S. Patent Application No. __________, title of the invention "STAPLE FORMING POCKET ARRANGEMENTS", Attorney Docket No. END8232USNP/170086,
-U.S. patent application No. __________, title of the invention "SURGICAL END EFFECTORS AND ANVILS", Agent Serial No. END8166USNP/170087, and-U.S. patent application No. ___________, title of the invention "ARTICULATION SYSTEMS INSURS INSTRUS FORS" Person reference number END8171USNP/170088.

The applicant of the present application owns the following U.S. patent applications filed on December 21, 2016, the entire contents of each of which are incorporated herein by reference.
-U.S. Patent Application No. 15/386,185, title of invention "SURGICAL STAPLING INSTRUMENTS AND REPLACEABLE TOOL ASSEMBLIES THEREOF",
-U.S. Patent Application No. 15/386,230, titled "ARTICULATABLE SURGICAL STAPLING INSTRUMENTS",
-US Patent Application No. 15/386,221, entitled "LOCKOUT ARRANGEMENTS FOR SURGICAL END EFFECTORS",
-US Patent Application No. 15/386,209, title of invention "SURGICAL END EFFECTORS AND FIRING MEMBERS THEREOF",
-US Patent Application No. 15/386,198, Title of Invention "LOCKOUT ARRANGENEMENTS FOR SURGICAL END EFFECTORS AND REPLACEABLE TOOL ASSEMBLIES,"
-US Patent Application No. 15/386,240, title of the invention "SURGICAL END EFFECTORS AND ADAPTABLE FIRING MEMBERS THEREFOR".
-U.S. Patent Application No. 15/385,939, title "STAPLE CARTRIDGES AND ARRANGEMENTS OF STAPLES AND STAPLE CAVITIES THEREIN",
-U.S. Patent Application No. 15/385,941, Title of the Invention "SURGICAL TOOL ASSEMBLIES WITH CLUTCHING ARRANGEMENTS FOR SHIFTING, CLOSE WIRE CLOSED FUNCTIONS, PRODUCTS, FRONT, PRODUCTS, AND WORKS, FLOWS, PRODUCTS, AND WORKS, PRODUCTS, PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, PRODUCTS, PRODUCTS, PRODUCTS, PRODUCTS, PRODUCTS, PRODUCTS, PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, PRODUCTS, PRODUCTS, AND PRODUCTS, PRODUCTS, AND PRODUCTS.
-U.S. Patent Application No. 15/385,943, title "SURGICAL STAPLING INSTRUMENTS AND STAPLE-FORMING ANVILS",
-U.S. Patent Application No. 15/385,950, title of the invention "SURGICAL TOOL ASSEMBLIES WITH CLOSE STROKE REDUCTION FEATURES",
-US Patent Application No. 15/385,945, Title of Invention "STAPLE CARTRIDGES AND ARRANGEMENTS OF STAPLES AND STAPLE CAVITIES THEREIN",
-US Patent Application No. 15/385,946, title of the invention "SURGICAL STAPLING INSTRUMENTS AND STAPLE-FORMING ANVILS",
-US Patent Application No. 15/385,951, title of the invention "SURGICAL INSTRUMENTS WITH JAW OPENING FEATURES FOR INCREASING A JAW OPENING DISTANCE",
-US Patent Application No. 15/385,953, title "METHODS OF STAPLING TISSUE",
-US Patent Application No. 15/385,954, titled "FIRING MEMBERS WITH NON-PARALLEL JAW ENGAGEMENT FEATURES FOR SURGICAL END EFFECTORS,"
-US Patent Application No. 15/385,955, title of the invention "SURGICAL END EFFECTORS WITH EXPANDABLE TISSUE STOP ARRANGENEMENTS",
-U.S. Patent Application No. 15/385,948, title of the invention "SURGICAL STAPLING INSTRUMENTS AND STAPLE-FORMING ANVILS",
-US Patent Application No. 15/385,956, title of the invention "SURGICAL INSTRUMENTS WITH POSITIVE JAW OPENING FEATURES",
-U.S. Patent Application No. 15/385,958, Title of Invention "SURGICAL INSTRUMENTS WITH LOCKOUT ARRANGENEMENTS FOR PREVENTING FIRING ACTION SYSTEM UNLESS AN UNSPONT STAPLE PTRACE LIST.
-US Patent Application No. 15/385,947, title "STAPLE CARTRIDGES AND ARRANGEMENTS OF STAPLES AND STAPLE CAVITIES THEREIN",
-US Patent Application No. 15/385,896, title "METHOD FOR RESETTING A FUSE OF A SURGICAL INSTRUMENT SHAFT",
-U.S. Patent Application No. 15/385,898, title "STAPLE FORMING POCKET ARRANGEMENT TO ACCOMMMODATE DIFFERENT TYPES OF STAPLES",
-U.S. Patent Application No. 15/385,899, titled "SURGICAL INSTRUMENT COMPRISING IMPROVED JAW CONTROL",
-US Patent Application No. 15/385,901, Title of Invention "STAPLE CARTRIDGE AND STAPLE CARTRIDGE CHANNEL COMPRISING WINDOWS DEFINED THEREIN",
-US Patent Application No. 15/385,902, title of invention "SURGICAL INSTRUMENT COMPRISING A CUTTING MEMBER",
-US Patent Application No. 15/385,904, title "STAPLE FIRING MEMBER COMPRISING A MISSING CARTRIDGE AND/OR SPENT CARTRIDGE LOCKOUT",
-US Patent Application No. 15/385,905, title "FIRING ASSEMBLY COMPRISING A LOCKOUT",
-US Patent Application No. 15/385,907, title of invention "SURGICAL INSTRUMENT SYSTEM COMPRISING AN END EFFECTOR LOCKOUT AND A FIRING ASSEMBLY LOCKOUT",
-U.S. Patent Application No. 15/385,908, title "FIRING ASSEMBLY COMPRISING A FUSE",
-U.S. Patent Application No. 15/385,909, titled "FIRING ASSEMBLY COMPRISING A MULTIPLE FAILED-STATE FUSE",
-US Patent Application No. 15/385,920, title "STAPLE FORMING POCKET ARRANGEMENTS",
-US Patent Application No. 15/385,913, title "ANVIL ARRANGEMENTS FOR SURGICAL STAPLE/FASTENERS",
-US Patent Application No. 15/385,914, Title of Invention "METHOD OF DEFORMING STAPLES FROM TWO DIFFERENT TYPES OF STAPLE CARTRIDGES WITH THE SAME SURGICAL STAPLING INSTRUMENT".
-U.S. Patent Application No. 15/385,893, title "BILTERALLY ASYMMETRIC STAPLE FORMING POCKET PAIRS",
-U.S. Patent Application No. 15/385,929, Title of the Invention "CLOSE MEMBERS WIT CAM SUR FACE ARRANGENEMENTS FOR SURGICAL INSTRUMENTS WITH SEPARATE AND DISTINCT CLOSEURE AND FIRSING, SYSMING".
-U.S. Patent Application No. 15/385,911, title of the invention "SURGICAL STAPLE/FASTENERS WITH INDEPENDENTLY ACTUATABLE CLOSED AND FIRING SYSTEMS",
-US Patent Application No. 15/385,927, title of invention "SURGICAL STAPLING INSTRUMENTS WITH SMART STAPLE CARTRIDGES",
-US Patent Application No. 15/385,917, title "STAPLE CARTRIDGE COMPRISING STAPLES WITH DIFFERENT CLAMPING BREADTHS",
-US Patent Application No. 15/385,900, title of invention "STAPLE FORMING POCKET ARRANGEMENTS COMPRISING PRIMARY SIDEWALLS AND POCKET SIDEWALLS",
-U.S. Patent Application No. 15/385,931, title "NO-CARTRIDGE AND SPENT CARTRIDGE LOCKOUT ARRANGEMENTS FOR SURGICAL STAPLES/FASTENERS",
-U.S. Patent Application No. 15/385,915, title "FIRING MEMBER PIN ANGLE",
-US Patent Application No. 15/385,897, titled "STAPLE FORMING POCKET ARRANGEMENTS COMPRISING ZONED FORMING SURFACE GROOVES,"
-U.S. Patent Application No. 15/385,922, titled "SURGICAL INSTRUMENT WITH MULTIPLELE FAILURE RESPONSE MODES,"
-U.S. Patent Application No. 15/385,924, entitled "SURGICAL INSTRUMENT WITH PRIMARY AND SAFETY PROCESSORS",
-US Patent Application No. 15/385,912, Title of Invention "SURGICAL INSTRUMENTS WITH JAWS THAT ARE PIVOTABLE ABOUT A FIXED AXIS AND INCLUDE SEPARATE AND DISTINCT CLUSURES AND
-US Patent Application No. 15/385,910, entitled "ANVIL HAVIGING A KNIFIE SLOT WIDTH",
-US Patent Application No. 15/385,906, title "FIRING MEMBER PIN CONFIGURATIONS",
-U.S. Patent Application No. 15/386,188, title of the invention "STEPPED STAPLE CARTRIDGE WITH ASYMMETRIC STAPLES",
-U.S. Patent Application No. 15/386,192, title of invention "STEPPED STAPLE CARTRIDGE WITH TISSUE RETENTION AND GAP SETTING FEATURES",
-US Patent Application No. 15/386,206, title of invention "STAPLE CARTRIDGE WITH DEFORMABLE DRIVER RETENTION FEATURES",
-US Patent Application No. 15,386,226, title "DURABILITY FEATURES FOR END EFFECTORS AND FIRING ASSEMBLIES OF SURGICAL STAPLING INSTRUMENTS",
-U.S. Patent Application No. 15/386,222, title of invention "SURGICAL STAPLING INSTRUMENTS HAVING END EFFECTORS WITH POSITIVE OPEN FEATURES",
-U.S. Patent Application No. 15/386,236, titled "CONNECTION PORTIONS FOR DEPOSABLE LOADING UNITS FOR SURGICAL STARPULING INSTRUMENTS",
-US Patent Application No. 15/385,887, title "METHOD FOR ATTACHING A SHAFT ASSEMBLY TO A SURGICAL INSTRUMENT AND, ALTERNATIVE, TO A SURGICAL ROBOT",
-U.S. Patent Application No. 15/385,889, titled "SHAFT ASSEMBLY COMPRISING A MANUALALLY-OPERABLE RETRACTION SYSTEM SYSTEM FOR USE WITH A MOTORIZED SURGICAL INSTRUMENTS SYSTEM".
-U.S. Patent Application No. 15/385,890, titled "SHAFT ASSEMBLY COMPRISING SEPARATELY ACTUATABLE AND RETRACTABLE SYSTEMS",
-U.S. Patent Application No. 15/385,891, titled "SHAFT ASSEMBLY COMPRISING A CLUTCH CONFIGURED TO ADAPT THE OUTPUT OF A ROTARY FIRING MEMBER TO TWO DIFFERENT SYSTEMS".
-U.S. Patent Application No. 15/385,892, Title of Invention "SURGICAL SYSTEM COMPRISING A FIRING MEMBER ROTATABLE INTO AN ARTICULATION STATE TO ARTICULATE AN END EFFECTORS OF OTHERS"
-U.S. Patent Application No. 15/385,894, entitled "SHAFT ASSEMBLY COMPRISING A LOCKOUT,"
-U.S. Patent Application No. 15/385,895, entitled "SHAFT ASSEMBLY COMPRISING FIRST AND SECOND ARTICULATION LOCKOUTS,"
-US Patent Application No. 15/385,916, title "SURGICAL STAPLING SYSTEMS",
-US Patent Application No. 15/385,918, title "SURGICAL STAPLING SYSTEMS",
-US Patent Application No. 15/385,919, title of invention "SURGICAL STAPLING SYSTEMS",
-US Patent Application No. 15/385,921, Title of Invention "SURGICAL STAPLE/FASTENER CARTRIDGE WITH MOVABLE CAMMING MEMBER CONFIRMED TO DISENGAGE FIRING MEMBER LOCKOUT FEATURES,"
-U.S. Patent Application No. 15/385,923, title "SURGICAL STAPLING SYSTEMS",
-US Patent Application No. 15/385,925, Title of Invention "JAW ACTUATED LOCK ARRANGENEMENTS FOR PREVENTING ADVANCEMENT OF A FIRING MEMBER IN FFEED CONTINUES UNIQUE UNIQUE INDUCTIONS UNDER EFFECTOR UNTRUE UNFRONTED UNTRUES UNIQUE
-US Patent Application No. 15/385,926, Title of Invention "AXIALLY MOVABLE CLOSE SYSTEM SYSTEM ARRANGEMENTS FOR APPLYING CLOSE PRODUCTS MOTIONS TO JAWS OF SURGICAL INSTRUMENTS",
-U.S. Patent Application No. 15/385,928, entitled "PROTECTIVE COVER ARRANGEMENTS FOR A JOINT INTERFACE BETWEEN A MOVABLE JAWS AND ACTUALSHAFT OF A SURGICAL INSTRUMENT".
-U.S. Patent Application No. 15/385,930, title of the invention "SURGICAL END EFFECTOR WITH TWO SEPARATE COOPERATING OPEN FEATURES FOR OPENING AND CLOSED END EFJECTOR JAWS",
-US Patent Application No. 15/385,932, title of invention "ARTICULATABLE SURGICAL END EFFECTOR WITH ASYMMETRIC SHAFT ARRANGEMENT",
-US Patent Application No. 15/385,933, title of invention "ARTICULATABLE SURGICAL INSTRUMENT WIT INDEPENDENT PIVOTABLE LINKAGE AGENT DISTAL OF AN ARTICULATION LOCK",
-U.S. Patent Application No. 15/385,934, Title of Invention "ARTICULATION LOCK ARRANGEMENTS FOR LOCKING AN END EFFECTOR IN AN AN ARTICULATED POSITION IN RESPONSE TO ACTUTION OF OYS OWRES,"
-US Patent Application No. 15/385,935, Title of the Invention "LATERALLY ACTUATABLE ARTICULATION LOCK ARRANGEGENTS FOR LOCKING AN END EFFECTOR OF A SUNRICAL INSTRUCTION, 15th, 38th, 15th, 38th, 15th, 38th, 15th, 38th, 15th, 38th, 15th, 38th, 15th, 38th, 15th, 38th, 19th, 19th, 19th, 19th, 15th, 18th, 19th, 15th, 18th, 19th, 15th, 38th, 15th, 38th, 15th, 38th, 15th, 18th, 19th, 15th, 19th, 19th, 19th, 19th, 19th, and 15th of July, 2003-U.S.A. "ARTICULATABLE SURGICAL INSTRUMENTS WITH ARTICULATION STROKE AMPLIFICATION FEATURES".

The applicant of the present application owns the following US patent applications filed on June 24, 2016, the entire contents of each of which are incorporated herein by reference.
-US Patent Application No. 15/191,775, titled "STAPLE CARTRIDGE COMPRISING WIRE STAPLES AND STAMPED STAPLES",
-US Patent Application No. 15/191,807, title of invention "STAPLING SYSTEM FOR USE WIT WIRE STAPLES AND STAMPED STAPLES",
-US Patent Application No. 15/191,834, title of invention "STAMPED STAPLES AND STAPLE CARTRIDGES USING THE SAME",
-US Patent Application No. 15/191,788, title "STAPLE CARTRIDGE COMPRISING OVERDRIVEN STAPLES", and-US Patent Application No. 15/191,818, title "STAPLE CARTRIDGE COMPRISING OFFSET LONGESTU PLATING.

The applicant of the present application owns the following US patent applications filed on June 24, 2016, the entire contents of each of which are incorporated herein by reference.
-US Design Patent Application No. 29/569,218, title of invention "SURGICAL FASTENER",
-US Design Patent Application No. 29/569,227, title of invention "SURGICAL FASTENER",
-US design patent application No. 29/569,259, title of the invention "SURGICAL FASTENER CARTRIDGE", and-US design patent application No. 29/569,264, title of the invention "SURGICAL FASTENER CARTRIDGE".

The applicant of the present application owns the following patent applications filed on April 1, 2016, which are hereby incorporated by reference in their entirety.
-US Patent Application No. 15/089,325, titled "METHOD FOR OPERATING A SURGICAL STAPLING SYSTEM",
-US Patent Application No. 15/089,321, title of the invention "MODULAR SURGICAL STAPLING SYSTEM COMPRISING A DISPLAY",
-US Patent Application No. 15/089,326, title of invention "SURGICAL STAPLING SYSTEM COMPRISING A DISPLAY INCLUDING A RE-ORIENTABLE DISPLAY FIELD",
-US Patent Application No. 15/089,263, title "SURGICAL INSTRUMENT HANDLE ASSEMBLY WITH RECONFIGUREABLE GRIP PORTION",
-U.S. Patent Application No. 15/089,262, titled "ROTARY POWERED SURGICAL INSTRUMENT WHITE MANUALALLY ACTUATABLE BAILOUT SYSTEM",
-US Patent Application No. 15/089,277, title of the invention "SURGICAL CUTTING AND STAPLING END EFFECTOR WITH ANVIL CONCENTRIC DRIVE MEMBER",
-US Patent Application No. 15/089,296, title of the invention "INTERCHANGEABLE SURGICAL TOOL ASSEMBLY WITH A SURGICAL END EFFECTOR THHAT IS SELECTIVELY ROTABLE ABOUT A SHAT A HAT"
-US Patent Application No. 15/089,258, title "SURGICAL STAPLING SYSTEM COMPRISING A SHIFTABLE TRANSMISSION",
-US Patent Application No. 15/089,278, title of invention "SURGICAL STAPLING SYSTEM CONFIGURED TO PROVIDE SELECTIVE CUTTING OF TISSUE",
-U.S. Patent Application No. 15/089,284, titled "SURGICAL STAPLING SYSTEM COMPRISING A CONTOURABLE SHAFT",
-US Patent Application No. 15/089,295, title of invention "SURGICAL STAPLING SYSTEM COMPRISING A TISSUE COMPRESSION LOCKOUT",
-US Patent Application No. 15/089,300, title of invention "SURGICAL STAPLING SYSTEM COMPRISING AN UNCLAMPING LOCKOUT",
-US Patent Application No. 15/089,196, title of invention "SURGICAL STAPLING SYSTEM COMPRISING A JAW CLOSE LOCKOUT",
-US Patent Application No. 15/089,203, title of the invention "SURGICAL STAPLING SYSTEM COMPRISING A JAW ATTACHMENT LOCKOUT",
-US Patent Application No. 15/089,210, title of the invention "SURGICAL STAPLING SYSTEM COMPRISING A SPORT CARTRIDGE LOCKOUT",
-US Patent Application No. 15/089,324, title of invention "SURGICAL INSTRUMENT COMPRISING A SHIFTING MECHANISM",
-US Patent Application No. 15/089,335, title of the invention "SURGICAL STAPLING INSTRUMENT COMPRISING MULTIPLE LOCKOUTS",
-US Patent Application No. 15/089,339, title of the invention "SURGICAL STAPLING INSTRUMENT",
-US Patent Application No. 15/089,253, title of invention "SURGICAL STAPLING SYSTEM CONFIGURED TO APPLY ANNULAR ROWS OF STAPLES HAVING DIFFERENT HEIGHTS",
-U.S. Patent Application No. 15/089,304, title of invention "SURGICAL STAPLING SYSTEM COMPRISING A GROOVED FORMING POCKET",
-US Patent Application No. 15/089,331, title of the invention "ANVIL MODIFICATION MEMBERS FOR SURGICAL STAPLE/FASTENERS",
-US Patent Application No. 15/089,336, title "STAPLE CARTRIDGES WITH ATRAUMATIC FEATURES",
-US Patent Application No. 15/089,312, title of invention "CIRCULAR STAPLING SYSTEM COMPRISING AN INCISABLE TISSUE SUPPORT",
-US Patent Application No. 15/089,309, title "CIRCULAR STAPLING SYSTEM COMPRISING ROTARY FIRING SYSTEM", and-US Patent Application No. 15/089,349, title "CIRCULAR STAPLING LOCONSYS RECORDING SYSTEM.

Applicant of the present application also owns the following identified US patent applications filed on Dec. 31, 2015, the entire contents of each of which are incorporated herein by reference.
-U.S. Patent Application No. 14/984,488, title "MECHANIMS FOR COMPENSATION FOR BATTERY PACK FAILURE IN POWERED SURGICAL INSTRUMENTS",
-US Patent Application No. 14/984,525, title of the invention "MECHANIMS FOR COMPENSATING FOR DRIVETRAIN FAILURE IN POWERED SURGICAL INSTRUMENTS", and-US Patent Application No. 14/984,552, title of the invention "SURGUR SURGUAL INSTRUMENT" AND MOTOR CONTROL CIRCUITS".

Applicant of the present application also owns the following identified US patent applications filed on February 9, 2016, the entire contents of each of which are incorporated herein by reference.
-US Patent Application No. 15/019,220, title of the invention "SURGICAL INSTRUMENT WITH ARTICULATING AND AXIALLY TRANSLATABLE END EFFECTOR",
-US Patent Application No. 15/019,228, title "SURGICAL INSTRUMENTS WITH MULTIPLELE LINK ARTICULATION ARRANGENEMENTS",
-US Patent Application No. 15/019,196, title of invention "SURGICAL INSTRUMENT ARTICULATION MECHANISM WITH SLOTED SECONDARY CONSTRAINT",
-U.S. Patent Application No. 15/019,206, title of the invention "SURGICAL INSTRUMENTS WITH AN END EFFECTOR THAT IS HIGHLY ARTICULATABLE RELATED TO AN ELONGATE SHAFATT ASSEMBLY",
-US Patent Application No. 15/019,215, title of invention "SURGICAL INSTRUMENTS WITH NON-SYMMETRICAL ARTICULATION ARRANGENEMENTS",
-US Patent Application No. 15/019,227, title of invention "ARTICULATABLE SURGICAL INSTRUMENTS WITH SINGLE ARTICULATION LINK ARRANGEMENTS",
-US Patent Application No. 15/019,235, title of invention "SURGICAL INSTRUMENTS WITH TENSIONING ARRANGEMENTS FOR CABLE DRIVEN ARTICULATION SYSTEMS",
-US patent application No. 15/019,230, title of the invention "ARTICULATABLE SURGICAL INSTRUMENTS WITH OFF-AXIS FIRING BEAM ARRANGENEMENTS", and-US patent application No. 15/019,245, title of the invention "SURTURE STURU START UNIQUE" REDUTION ARRANGEMENTS."

Applicant of the present application also owns the below identified US patent applications filed on February 12, 2016, the entire contents of each of which are incorporated herein by reference.
-U.S. Patent Application No. 15/043,254, title of the invention "MECHANISMS FOR COMPENSATING FOR DRIVERTRAIN FAILURE IN POWERED SURGICAL INSTRUMENTS",
-U.S. Patent Application No. 15/043,259, title "MECHANIMS FOR COMPENSATION FOR DRIVERTRAIN FAILURE IN POWERED SURGICAL INSTRUMENTS",
-US patent application No. 15/043,275, title of the invention "MECHANIMS FOR COMPENSATION FOR DRIVERTRAIN FAILURE IN POWERED SURGICAL INSTRUMENTS", and-U.S. patent application No. 15/043,289, title of "INFORMATION FORMORFIN FORMESFRONS FAILURE IN POWERED SURGICAL INSTRUMENTS".

The applicant of the present application owns the following patent applications filed on June 18, 2015, which are hereby incorporated by reference in their entirety.
-US Patent Application No. 14/742,925, title of invention "SURGICAL END EFFECTORS WITH POSITIVE JAW OPENING ARRANGEMENTS", now US Patent Application Publication No. 2016/0367256,
-US Patent Application No. 14/742,941, title of the invention "SURGICAL END EFFECTORS WITH DUAL CAM ACTUALATED JAW CLOSED FEATURES", now US Patent Application Publication No. 2016/0367248,
-U.S. Patent Application No. 14/742,914, title of the invention "MOVABLE FIRING BEAM SUPPORT ARRANGENEMENTS FOR ARTICULATABLE SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2016/0367255,
-US Patent Application No. 14/742,900, title of the invention "ARTICULATURE SURGICAL INSTRUMENTS WIT COMPOSITE FIRING BEAM STRUCTURES WITTER CENTER FIRPING MERCHOR PURPOST NUMBER 4", 16th POS PORT MERPORS OUR PART.
-U.S. Patent Application No. 14/742,885, title "DUAL ARTICULATION DRIVE SYSTEM SYSTEM ARRANGENEMENTS FOR ARTICULATABLE SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2016/03672462, and-US Patent Application No. 2016/0367246, No., title of invention "PUSH/PULL ARTICULATION DRIVE SYSTEMS FOR ARTICULATABLE SURGICAL INSTRUMENTS", currently US Patent Application Publication No. 2016/0367245.

The applicant of the present application owns the following patent applications filed on Mar. 6, 2015, which are hereby incorporated by reference in their entirety.
-U.S. Patent Application No. 14/640,746, title of the invention "POWERED SURGICAL INSTRUMENT", now U.S. Patent Application Publication No. 2016/0256184,
-US Patent Application No. 14/640,795, title of invention "MULTIPLE LEVEL THRESHOLDS TO MODIFY OPERATION OF POWERED SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2016/02561185;
-US Patent Application No. 14/640,832, title of the invention "ADAPTIVE TISSUE COMPRESSION TECHNIQUES TO ADJUST CLOSERATES FOR MULTIPLE TISSUE TYPES", now US Patent Application Publication No. 2016/0256154.
-US Patent Application No. 14/640,935, title of the invention "OVERLAID MULTI SENSOR RADIO FREQUENCY (RF) ELECTRODE SYSTEM TO MEASURE TISSUE COMPRESSION", now US Patent Application Publication No. 2016/0256071.
-U.S. Patent Application No. 14/640,831, title "MONITORING SPEED CONTROL AND PRECISION INCREMENTING OF MOTOR FOR POWERED SURGICAL INSTRUMENTS", now U.S. Patent Application Publication No. 2016/0256153.
-US Patent Application No. 14/640,859, title of invention "TIME DEPENDENT EVALUATION OF SENSOR DATA TO DETERMINE STABILITY, CREEP, AND VISCOELASTIC ELEMENTS OF MEASURES," No. 18/US Patent Publication No. 20/US Patent Application No. 02/20
-US Patent Application No. 14/640,817, title of the invention "INTERACTIVE FEEDBACK SYSTEM FOR POWERED SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2016/0256186,
-U.S. Patent Application No. 14/640,844, title of the invention "CONTROL TECHNIQUES AND SUB-PROCESS CONTRAINED WITHIN MODULAR SHAFATT WITH CONTROL CONTROL No. 56/15, US 15/02, present 15 USLE", present 15 USLE.
-U.S. Patent Application No. 14/640,837, title of the invention "SMART SENSORS WITH LOCAL SIGNAL PROCESSING", now US Patent Application Publication No. 2016/0256163,
-US Patent Application No. 14/640,765, title of the invention "SYSTEM FOR DETECTING THE MIS-INSERTION OF A STAPLE CARTRIDGE INTO A SURGICAL STAPLE/FASTENER", now US Patent Application Publication No. 2016/0256160.
-US Patent Application No. 14/640,799, Title of Invention "SIGNAL AND POWER COMMUNICATION SYSTEM POSITIONED ON A ROTATABLE SHAFT", now US Patent Application Publication No. 2016/0256162, and-US Patent Application No. 14/640, No. 780, title of the invention “SURGICAL INSTRUMENT COMPRISING A LOCKABLE BATTERY HOUSING”, now US Patent Application Publication No. 2016/0256161.

The applicant of the present application owns the following patent applications filed on February 27, 2015, which are hereby incorporated by reference in their entirety.
-U.S. Patent Application No. 14/633,576, title of the invention "SURGICAL INSTRUMENT SYSTEM COMPRISING AN INSPECTION STATION", now US Patent Application Publication No. 2016/0249919;
-U.S. Patent Application No. 14/633,546, title of the invention "SURGICAL APPARATUS CONFIGURED TO ASSESS WHETER A PERFORMANCE PARAMETER OF THE SURGICAL APPRATUS NO.
-US Patent Application No. 14/633,560, title of invention "SURGICAL CHARGING SYSTEM THE HAT CHARGES AND/OR CONDITIONS ONE OR MORE BATTERIES", now US Patent Application Publication No. 2016/0249910,
-U.S. Patent Application No. 14/633,566, title "CHARGING SYSTEM THEN ENABLES EMERGENCY RESOLUTIONS FOR CHARGING A BATTERY", now US Patent Application Publication No. 2016/0249918,
-US Patent Application No. 14/633,555, title of the invention "SYSTEM FOR MONITORING WHETER A SURGICAL INSTRUMENTS NEEDS TO BE SERVICED", now US Patent Application Publication No. 2016/0249916,
-U.S. Patent Application No. 14/633,542, title of the invention "REINFORMED BATTERY FOR A SURGICAL INSTRUMENT", now U.S. Patent Application Publication No. 2016/0249908,
-U.S. Patent Application No. 14/633,548, title of the invention "POWER ADAPTER FOR A SURGICAL INSTRUMENT", now U.S. Patent Application Publication No. 2016/0249909,
-U.S. Patent Application No. 14/633,526, title of the invention "ADAPTABLE SURGICAL INSTRUMENT HANDLE", now U.S. Patent Application Publication No. 2016/0249945,
-U.S. Patent Application No. 14/633,541, title of the invention "MODULAR STAPLING ASSEMBLY", now U.S. Patent Application Publication No. 2016/0249927,
-US Patent Application No. 14/633,562, title of the invention "SURGICAL APPARATUS CONFIGURED TO TRACK AN END-OF-LIFE PARAMETER", now US Patent Application Publication No. 2016/0249917.

The applicant of the present application owns the following patent applications filed on December 18, 2014, which are hereby incorporated by reference in their entirety.
-US patent application No. 14/574,478, title of invention "SURGICAL INSTRUMENT SYSTEMS COMPRISING AN ARTICULATABLE END EFFFECTOR AND MEANS FOR ADJUSTING No. 97/NO.
-U.S. Patent Application No. 14/574,483, title of the invention "SURGICAL INSTRUMENT ASSEMBLY COMPRISING LOCKABLE SYSTEMS", now US Patent Application Publication No. 2016/0174969;
-US Patent Application No. 14/575,139, title of invention "DRIVE ARRANGEMENTS FOR ARTICULATABLE SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2016/0174978,
-U.S. Patent Application No. 14/575,148, title "LOCKING ARRANGENEMENTS FOR DETACHABLE SHAFFT ASSEMBLIES WITH ARTICULATABLE SURGICAL END EFFECTORS", now US Patent Application Publication No. 2016/0174976.
-US Patent Application No. 14/575,130, title of the invention "SURGICAL INSTRUMENT WITH AN ANVIL THAT IS SELECTIVELY MOVABLE ABOUT A DISCRETE NO-MOVABLE No. 97/NO. ,
-US Patent Application No. 14/575,143, title of the invention "SURGICAL INSTRUMENTS WITH IMPROVED CLOSEURE ARRANGEMENTS", now US Patent Application Publication No. 2016/0174983,
-U.S. Patent Application No. 14/575,117, title of the invention "SURGICAL INSTRUMENTS WITH ARTICULATABLE END EFFECTORS AND MOVABLE FIRING BEAM SUPPORT ARRANGEMENTS", now US Patent Application No. 75/2017, No. 7/2016/2016/16.
-U.S. Patent Application No. 14/575,154, title of the invention "SURGICAL INSTRUMENTS WITH ARTICULATABLE END EFFECTORS AND IMPROVED FIRING BEAM SUPPORT ARRANGENEMENTS", now US Patent Application No. 74/97, No. 07/2016/16.
-U.S. Patent Application No. 14/574,493, title of the invention "SURGICAL INSTRUMENT ASSEMBLY COMPRISING A FLEXIBLE ARTICULATION SYSTEM", now U.S. Patent Application Publication No. 2016/0174970, and-US Patent Application No. 14/574,500. , "SURGICAL INSTRUMENT ASSEMBLY COMPRISING A LOCKABLE ARTICULATION SYSTEM", now US Patent Application Publication No. 2016/0174971.

The applicant of the present application owns the following patent applications filed on Mar. 1, 2013, which are hereby incorporated by reference in their entirety.
-US Patent Application No. 13/782,295, title of the invention "ARTICULATABLE SURGICAL INSTRUMENTS WITH CONDUCTIVE PATHWAYS FOR SIGNAL COMMUNICATION", now US Patent Application Publication No. 2014/0246471.
-US Patent Application No. 13/782,323, title of invention "ROTARY POWERED ARTICULATION JOINTS FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0246472,
-US Patent Application No. 13/782,338, title of the invention "THUMBWHEEL SWITCH ARRANGEMENTS FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0249557,
-US Patent Application No. 13/782,499, title of invention "ELECTROMECHANICAL SURGICAL DEVICE WITH WITH SIGNAL RELAY ARRANGEMENT", now US Patent No. 9,358,003,
-U.S. Patent Application No. 13/782,460, titled "MULTIPLE PROCESSOR MOTOR CONTROL FOR MODULAR SURGICAL INSTRUMENTS", now U.S. Patent No. 9,554,794;
-U.S. Patent Application No. 13/782,358, title of the invention "JOYSTICK SWITCH ASSEMBLIES FOR SURGICAL INSTRUMENTS", now U.S. Patent No. 9,326,767,
-U.S. Patent Application No. 13/782,481, title of the invention "SENSOR STRAIGHTTENED END EFFECTOR DURING REMOVE THROUGH TROCAR", now U.S. Patent No. 9,468,438,
-U.S. Patent Application No. 13/782,518, title of invention "CONTROL METHODS FOR SURGICAL INSTRUMENTS WITH REMOVABLE IMPLEMENT PORTIONS", now US Patent Application Publication No. 2014/0246475,
-US Patent Application No. 13/782,375, title of invention "ROTARY POWERED SURGICAL INSTRUMENTS WITH MULTIPLELE DEGREES OF FREEDOM", now US Patent No. 9,398,911,
-U.S. Patent Application No. 13/782,536, title "SURGICAL INSTRUMENT SOFT STOP", now U.S. Patent No. 9,307,986.

The applicant of the present application also owns the following patent applications filed on Mar. 14, 2013, the entire contents of each of which are incorporated herein by reference:
-U.S. Patent Application No. 13/803,097, title of invention "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING A FIRING DRIVE", now U.S. Patent Application Publication No. 2014/0263542,
-U.S. Patent Application No. 13/803,193, title of the invention "CONTROL ARRANGENEMENTS FOR A DRIVE MEMBER OF A SURGICAL INSTRUMENT", now U.S. Patent No. 9,332,987,
-U.S. patent application Ser. No. 13/803,053, title of the invention "INTERCHANGEABLE SHAFT ASSEMBLIES FOR USE WITH A SURGICAL INSTRUMENT", now U.S. patent application publication No. 2014/0263564.
-U.S. patent application Ser. No. 13/803,086, title of invention "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING AN ARTICULATION LOCK", now U.S. Patent Application Publication No. 2014/0263541,
-U.S. Patent Application No. 13/803,210, title of the invention "SENSOR ARRANGEMENTS FOR ABSOLUTE POSITIONING SYSTEM FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263538,
-U.S. Patent Application No. 13/803,148, title of the invention "MULTI-FUNCTION MOTOR FOR A SURGICAL INSTRUMENT", now U.S. Patent Application Publication No. 2014/0263554,
-U.S. patent application No. 13/803,066, title of the invention "DRIVE SYSTEM LOCKOUT ARRANGEMENTS FOR MODULAR SURGICAL INSTRUMENTS", now U.S. patent number 9,629,623, and-U.S. patent application number 13/803,117. , The title of the invention "ARTICULATION CONTROL SYSTEM FOR ARTICULATABLE SURGICAL INSTRUMENTS", currently US Pat. No. 9,351,726,
-U.S. Patent Application No. 13/803,130, title of the invention "DRIVE TRAIN CONTROL ARRANGEMENTS FOR MODULAR SURGICAL INSTRUMENTS", now U.S. Patent No. 9,351,727, and-U.S. Patent Application No. 13/803,159. , "METHOD AND SYSTEM FOR OPERATING A SURGICAL INSTRUMENT", now US Patent Application Publication No. 2014/0277017.

The applicant of the present application also owns the following patent applications, filed March 7, 2014, the entire contents of which are incorporated herein by reference:
-U.S. Patent Application No. 14/200,111, title of the invention "CONTROL SYSTEMS FOR SURGICAL INSTRUMENTS", now U.S. Patent No. 9,629,629,

The applicant of the present application also owns the following patent applications filed on Mar. 26, 2014, which are hereby incorporated by reference in their entirety.
-U.S. Patent Application No. 14/226,106, title of invention "POWER MANAGEMENT CONTROL SYSTEMS FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2015/0272582,
-U.S. patent application Ser. No. 14/226,099, title of the invention "STERILIZATION VERIFICATION CIRCUIT", now U.S. Patent Application Publication No. 2015/0272581;
-U.S. patent application Ser. No. 14/226,094, title "VERIFICATION OF NUMBER OF BATTERY EXCHANGES/PROCEDURE COUNT", now U.S. patent application publication No. 2015/0272580,
-US Patent Application No. 14/226,117, title of the invention "POWER MANAGEMENT THROUGH SLEEP OPTIONS OF SEGMENTED CIRCUIT AND WAKE UP CONTROL", now US Patent Application Publication No. 2015/0272574,
-US Patent Application No. 14/226,075, title of the invention "MODULAR POWERED SURGICAL INSTRUMENT WITCH DETACHABLE SHAFT ASSEMBLIES", now US Patent Application Publication No. 2015/0272579,
-US Patent Application No. 14/226,093, title of invention "FEEDBACK ALGORITHMS FOR MANUAL BAILOUT SYSTEMS FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2015/0272569,
-US Patent Application No. 14/226,116, title of the invention "SURGICAL INSTRUMENT UTILIZING SENSOR ADAPTATION", now US Patent Application Publication No. 2015/0272571,
-U.S. Patent Application No. 14/226,071, title of the invention "SURGICAL INSTRUMENT CONTROL CIRCUIT HAVING A SAFETY PROCESSOR", now US Patent Application Publication No. 2015/0272578,
-U.S. Patent Application No. 14/226,097, title of the invention "SURGICAL INSTRUMENT COMPRISING INTERACTIVE SYSTEMS", now U.S. Patent Application Publication No. 2015/0272570,
-U.S. Patent Application No. 14/226,126, title of the invention "INTERFACE SYSTEMS FOR USE WITH SURGICAL INSTRUMENTS", now U.S. Patent Application Publication No. 2015/0272572,
-U.S. Patent Application No. 14/226,133, title of the invention "MODULAR SURGICAL INSTRUMENT SYSTEM", now U.S. Patent Application Publication No. 2015/0272557,
-U.S. Patent Application No. 14/226,081, title of the invention "SYSTEMS AND METHODS FOR CONTROLLING A SEGMENTED CIRCUIT", now US Patent Application Publication No. 2015/0277471;
-US Patent Application No. 14/226,076, title of invention "POWER MANAGEMENT THROUGH SEGMENTED CIRCUIT AND VARIABLE VOLTAGE PROTION", now US Patent Application Publication No. 2015/0280424,
-US Patent Application No. 14/226,111, title of the invention "SURGICAL STAPLING INSTRUMENT SYSTEM", now US Patent Application Publication No. 2015/0272583, and-US Patent Application No. 14/226,125, title of the invention "SURGICAL INSTRUMENT COMPRISING A ROTATABLE SHAFT", now US Patent Application Publication No. 2015/0280384.

The applicant of the present application also owns the following patent applications filed on September 5, 2014, which are hereby incorporated by reference in their entirety.
-U.S. patent application Ser. No. 14/479,103, title of the invention "CIRCUITRY AND SENSORS FOR POWEREDED MEDICAL DEVICE", now US patent application publication No. 2016/0066912,
-US Patent Application No. 14/479,119, title of invention "ADJUNCT WITH INTEGRATED SENSORS TO QUANTIFY TISSUE COMPRESSION", now US Patent Application Publication No. 2016/0066914,
-U.S. Patent Application No. 14/478,908, Invention Title "MONITORING DEVICE DEGRADATION BASED ON COMPONENT EVALUATION", now U.S. Patent Application Publication No. 2016/0066910,
-U.S. Patent Application No. 14/478,895, Invention Title "MULTIPLE SENSORS WITH ONE SENSOR AFFECTING A SECOND SENSOR'S OUTPUT OR INTERPRETATION", now U.S. Patent Application Publication No. 2016/0066909,
-U.S. Patent Application No. 14/479,110, title of invention "POLARITY OF HALL MAGNET TO DETECT MISLOADED CARTRIDGE", now U.S. Patent Application Publication No. 2016/0066915,
-U.S. Patent Application No. 14/479,098, title of the invention "SMART CARTRIDGE WAKE UP OPERATION AND DATA RETENTION", now US Patent Application Publication No. 2016/0066911,
-U.S. Patent Application No. 14/479,115, title of the invention "MULTIPLE MOTOR CONTROL FOR POWERED MEDICAL DEVICE", now US Patent Application Publication No. 2016/0066916, and-US Patent Application No. 14/479,108, The title of the invention is "LOCAL DISPLAY OF TISSUE PARAMETER STABILIZATION", now US Patent Application Publication No. 2016/0066913.

The applicant of the present application also owns the following patent applications filed on April 9, 2014, which are hereby incorporated by reference in their entirety.
-U.S. Patent Application No. 14/248,590, title of the invention "MOTOR DRIVEN SURGICAL INSTRUMENTS WITH LOCKABLE DUAL DRIVE SHAFTS", now U.S. Patent Application Publication No. 2014/03055987,
-U.S. Patent Application No. 14/248,581, title "SURGICAL INSTRUMENT COMPRISING A CLOSED DRIVE AND A FIRING DRIVE OPERATED FROM THE SAME ROTATABLE OUTPUT", now US Pat.
-U.S. Patent Application No. 14/248,595, title of invention "SURGICAL INSTRUMENT SHAFT INCLUDING SWITCHES FOR CONTROLLING THE THE OPERARATION OF THE SURGICAL INSTRUMENT", No. 20/No. 0/US Patent Application Publication No. 30/No.
-US Patent Application No. 14/248,588, title of invention "POWERED LINEAR SURGICAL STAPLE/FASTENER", now US Patent Application Publication No. 2014/03096666,
-U.S. Patent Application No. 14/248,591, title of the invention "TRANSMISSION ARRANGEMENT FOR A SURGICAL INSTRUMENT", now U.S. Patent Application Publication No. 2014/0305991,
-U.S. Patent Application No. 14/248,584, "MODULAR MOTOR DRIVEN SURGICAL INSTRUMENTS WITH WHICH ALIGNMENT FEATURES FOR ALIGNING ROTARY 305 US, No. 405 SHAFTS WHITH ENG SURGER, 20th SURGE SHIRTTS WHICH EN"
-U.S. Patent Application No. 14/248,587, title of the invention "POWERED SURGICAL STAPLE/FASTENER", now U.S. Patent Application Publication No. 2014/0309665,
-US Patent Application No. 14/248,586, title of the invention "DRIVE SYSTEM DECOUPLING ARRANGEMENT FOR A SURGICAL INSTRUMENT", now US Patent Application Publication No. 2014/03059990, and-US Patent Application No. 14/248,607. , MODULAR MOTOR DRIVEN SURGICAL INSTRUMENTS WITH STATUS INDICATION ARRANGEMENTS, now US Patent Application Publication No. 2014/0305992.

The applicant of the present application also owns the following patent applications filed on April 16, 2013, the entire contents of each of which are incorporated herein by reference:
-U.S. Provisional Patent Application No. 61/812,365, title of invention "SURGICAL INSTRUMENT WITH MULTIPLELE FUNCTIONS PERFORMED BY A SINGLE MOTOR",
-U.S. Provisional Patent Application No. 61/812,376, title "LINEAR CUTTER WITH POWER",
-U.S. Provisional Patent Application No. 61/812,382, title "LINEAR CUTTER WITH MOTOR AND PISTOL GRIP",
-U.S. provisional patent application No. 61/812,385, title of the invention "SURGICAL INSTRUMENT WANDLE MULTIPLE ACTION MOTORS AND MOTOR CONTROL", and-Provisional patent application No. 61/812,372, title of the invention "Surgical MULTIPLE FUNCTIONS PERFORMED BY A SINGLE MOTOR".

Numerous specific details are set forth in order to provide a thorough understanding of the overall structure, function, manufacture, and use of the embodiments, as described herein and shown in the accompanying drawings. Well-known operations, components, and elements have not been described in detail so as not to obscure the embodiments described herein. The reader is aware that the embodiments described and illustrated herein are non-limiting examples, and thus the particular structural and functional details disclosed herein may be representative and exemplary. You will understand. Changes and modifications may be made thereto without departing from the scope of the claims.

The terms “comprise” (any form of comprise, such as “comprises” and “comprising”), “have” (any form of have, such as “has” and “having”), “include ( "include" (any word form of include, such as "includes" and "including"), and "contain" (any word form of container, such as "contains" and "containing") are open-ended concatenations. It is a verb. As a result, a surgical system, device, or apparatus that "comprises," "has," "includes," or "contains" one or more elements is one or more of them. It has two or more elements, but is not limited to having only one or more of them. Similarly, “comprises,” “have,” “includes,” or “contains” one or more features, elements of a system, device, or apparatus, may be one or more of them. It has two or more features, but is not limited to having only one or more of those features.

The terms "proximal" and "distal" are used herein with reference to the clinician operating the handle portion of the surgical instrument. The term "proximal" refers to the portion that is closest to the clinician, and the term "distal" refers to the portion that is remote from the clinician. It will be further understood that spatial terms such as “vertical”, “horizontal”, “top”, and “bottom” may be used herein for the drawings, for convenience and clarity. However, surgical instruments are used in many orientations and positions, and these terms are not intended to be limiting and/or absolute.

Various exemplary devices and methods are provided for performing laparoscopic and minimally invasive surgery. However, it will be readily appreciated by the reader that the various methods and devices disclosed herein may be used in many surgical procedures and applications, including those associated with open surgery, for example. In reading the "Modes for Carrying Out the Invention" herein, the reader will be informed that the various devices disclosed herein may be used to make incisions or punctures made in tissue, such as through natural openings. It will be further understood that it may be inserted into the body in any way, such as through a hole. The working or end effector portion of these instruments can be inserted directly into the patient's body or through an access device having a working passage through which the end effector and elongated shaft of the surgical instrument can be advanced. You can also

The surgical stapling system can include a shaft and an end effector extending from the shaft. The end effector includes a first jaw and a second jaw. The first jaw includes a staple cartridge. The staple cartridge is insertable into and removable from the first jaw, but the staple cartridge is not removable from the first jaw, or at least easily replaced from the first jaw. Other embodiments are envisioned that are not possible. The second jaw includes an anvil configured to deform staples ejected from the staple cartridge. The second jaw is pivotable about the closure axis with respect to the first jaw, but the first jaw is pivotable with respect to the second jaw. is assumed. The surgical stapling system further includes an articulating joint configured to allow the end effector to rotate or articulate relative to the shaft. The end effector is rotatable about an articulation axis extending through the articulation joint. Other embodiments are also envisioned that do not include an articulating joint.

The staple cartridge includes a cartridge body. The cartridge body includes a proximal end, a distal end, and a deck portion extending between the proximal and distal ends. In use, the staple cartridge is positioned on the first side of the tissue to be stapled and the anvil is positioned on the second side of the tissue. The anvil moves toward the staple cartridge to compress and clamp the tissue against the deck. The staples that are removably stored within the cartridge body can then be deployed within the tissue. The cartridge body includes a staple cavity defined therein, and the staple is removably stored in the staple cavity. The staple cavities are arranged in six longitudinal rows. The three rows of staple cavities are located on a first side of the longitudinal slot and the three rows of staple cavities are located on a second side of the longitudinal slot. Other arrangements of staple cavities and staples may be possible.

The staples are supported by a staple driver inside the cartridge body. The driver is moveable between a first or unfired position and a second or fired position that ejects staples from the staple cavity. The driver includes an elastic member that is retained within the cartridge body by a retainer that extends around the bottom of the cartridge body and that is configured to grip the cartridge body and retain the retainer with respect to the cartridge body. The driver is movable by the sled between their unfired position and their fired position. The sled is moveable between a proximal position adjacent the proximal end and a distal position adjacent the distal end. The sled includes a plurality of ramped surfaces configured to slide under the driver and lift the driver with staples supported thereon and toward the anvil.

In addition to the above, the sled is moved distally by the firing member. The firing member is configured to contact the thread and push the thread toward the distal end. A longitudinal slot defined in the cartridge body is configured to receive the firing member. The anvil also includes a slot configured to receive the firing member. The firing member further includes a first cam that engages the first jaw and a second cam that engages the second jaw. Upon advancing the firing member distally, the first and second cams can control the distance between the deck portion of the staple cartridge and the anvil, or tissue clearance. The firing member also includes a knife configured to ablate trapped tissue intermediate the staple cartridge and anvil. It is desirable for the knife to be positioned at least partially proximal to the ramp so that the staples are ejected ahead of the knife.

FIG. 1 illustrates a motor driven surgical system 10 that may be used to perform a variety of different surgical procedures. As can be seen in this figure, one example of surgical system 10 includes four replaceable surgical tool assemblies 1000, 3000, 5000 and 7000, each adapted for interchangeable use with handle assembly 500. Each replaceable surgical tool assembly 1000, 3000, 5000 and 7000 may be designed for use in performing one or more particular surgical procedures. In another surgical system embodiment, one or more of the replaceable surgical tool assemblies 1000, 3000, 5000 and 7000 may also be effectively used with an instrument drive assembly of a robotic or automated surgical system. it can. For example, the surgical tool assemblies disclosed herein include various robotic systems, instruments, components and methods, including, but not limited to, US Pat. No. 9,072, which is incorporated herein by reference in its entirety. No. 535, title of the invention "SURGICAL STAPLING INSTRUMENTS WITH ROTATABLE STAPLE DEPLOYMENT ARRANGEMENTS".

FIG. 2 illustrates the attachment of the replaceable surgical tool assembly 1000 to the handle assembly 500. It will be appreciated that any of the other replaceable tool assemblies 3000, 5000, and 7000 can be coupled to the handle assembly 500 in a similar manner. The attachment mechanism and process shown in FIG. 2 may also be used in connection with attaching any of the replaceable surgical tool assemblies 1000, 3000, 5000 and 7000 to an instrument drive portion or instrument drive housing of a robotic system. it can. The handle assembly 500 may include a handle housing 502 that includes a pistol grip portion 504 that can be grasped and manipulated by a clinician. As discussed briefly below, the handle assembly 500 produces corresponding various portions of the replaceable surgical tool assembly 1000, 3000, 5000 and/or 7000 that produces various controlled movements and is operably attached to the handle assembly. Operatively support a plurality of drive systems 510, 530 configured to apply to

As seen in FIG. 2, the handle assembly 500 can further include a handle frame 506 that operably supports a plurality of drive systems. For example, the handle frame 506 can operably support a “first” or closure drive system, generally indicated as 510, that can be used to operably attach to the handle assembly 500. Opening and closing motions can be applied to the attached or connected replaceable surgical tool assemblies 1000, 3000, 5000 and 7000. In at least one form, the closure drive system 510 pivotally supported by the handle frame 506 may include an actuator in the form of a closure trigger 512. Such a configuration allows the clinician to manipulate the closure trigger 512 so that when the clinician grasps the pistol grasping portion 504 of the handle assembly 500, the closure trigger 512 may be in a starting position or "". It is easily pivotable from a "non-actuated" position to an "actuated" position, and more specifically to a fully compressed or fully actuated position. In various forms, closure drive system 510 further includes a closure link assembly 514 pivotally coupled to, or otherwise operatively interfaced with, closure trigger 512. As discussed in more detail below, in the example shown, the closure link assembly 514 includes lateral attachment pins 516 that facilitate attachment to a corresponding drive system on the surgical tool assembly. In use, to activate the closure drive system 510, the clinician depresses the closure trigger 512 toward the pistol grip portion 504. Further details can be found in US patent application Ser. No. 14/226,142, title of the invention “SURGICAL INSTRUMENT COMPRISING A SENSOR SYSTEM”, now US patent application publication No. 2015/0272575, the entire contents of which are incorporated herein by reference. As described, when the clinician fully depresses the closure trigger 512 to achieve a fully closed stroke, the closure drive system 510 causes the closure trigger 512 to move the closure trigger 512 to a fully depressed or fully actuated position. It is configured to lock onto. When the clinician desires to unlock the closure trigger 512 to bias it to the inoperative position, the clinician simply actuates the closure release button assembly 518, which causes the closure trigger to move to the inoperative position. It is possible to return to. The closure open button assembly 518 may also be configured to interact with various sensors in communication with the microprocessor 560 within the handle assembly 500 to track the position of the closure trigger 512. Further details regarding the construction and operation of the closure open button assembly 518 can be found in U.S. Patent Application Publication No. 2015/0272575.

In at least one form, the handle assembly 500 and the handle frame 506 are herein described as a firing drive system 530, configured to apply a firing motion to corresponding portions of the attached replaceable surgical tool assembly. Another drive system referred to may be operably supported. The firing drive system 530 may use an electric motor 505 located within the pistol grip portion 504 of the handle assembly 500, as described in detail in US Patent Application Publication No. 2015/0272575. In various configurations, the motor 505 may be a brushed DC drive motor with a maximum speed of about 25,000 RPM, for example. In another configuration, the motor 505 can include a brushless motor, a cordless motor, a synchronous motor, a stepper motor, or any other suitable electric motor. The motor 505 may be powered by a power supply 522, which in one form may include a removable power pack. The power pack may carry multiple lithium-ion (“LI”) or other suitable batteries therein. Multiple batteries that can be connected in series can be used as the power source 522 for the surgical system 10. Additionally, the power source 522 may be replaceable and/or rechargeable.

The electric motor 505 is configured to drive a longitudinally movable drive member (not shown) axially in the distal and proximal directions, depending on the polarity of the motor. For example, if the motor drives in one direction of rotation, the longitudinally movable drive member may drive axially in the distal direction "DD." When the motor 505 drives in the opposite direction of rotation, the longitudinally displaceable drive member will drive axially in the proximal direction “PD”. The handle assembly 500 may include a switch 513, which may be configured to reverse the polarity applied to the electric motor 505 by the power source 522, or otherwise control the motor 505. The handle assembly 500 may also include one or more sensors (not shown) configured to detect the position of the drive member and/or the direction in which the drive member moves. Actuation of the motor 505 can be controlled by a firing trigger 532 (FIG. 1) pivotally supported on the handle assembly 500. The firing trigger 532 may pivot between a non-actuated position and an actuated position. The firing trigger 532 may be biased to a non-actuated position by a spring or other biasing arrangement such that when the clinician releases the firing trigger 532, it is actuated by the spring or biasing device. May be pivoted to or otherwise returned. In at least one form, firing trigger 532 may be positioned “outside” closure trigger 512, as described above. As described in U.S. Patent Application Publication No. 2015/0272575, the handle assembly 500 may be provided with a firing trigger safety button (not shown) to prevent inadvertent activation of the firing trigger 532. .. When the closure trigger 512 is in the non-actuated position, the safety button is inside the handle assembly 500 and cannot be easily touched by the clinician to prevent actuation of the firing trigger 532; The firing trigger 532 cannot move to and from the firing position at which it can fire. As the clinician presses the closure trigger 512, the safety button and firing trigger 532 pivot downwards, which in turn allows manipulation by the clinician.

In at least one form, the longitudinally movable drive member has teeth (not shown) formed thereon for meshing engagement with a corresponding drive gear arrangement (not shown) that interacts with the motor. ) Rack. Further details regarding these features can be found in US Patent Application Publication No. 2015/0272575. At least one form is also a manually actuatable "emergency" assembly configured to allow the clinician to manually retract the longitudinally movable drive member and disable the motor 505. including. The emergency assembly may include a lever or emergency handle assembly housed within the handle assembly 500 under the removable door portion 550. See FIG. The lever may be configured to be manually pivoted into ratcheting engagement with the teeth of the drive member. Thus, the clinician may manually retract the drive member by ratcheting the drive member in the proximal direction "PD" using the emergency disengagement handle assembly. U.S. Patent No. 8,608,045, the title of the invention "POWERED SURGICAL CUTTING AND STAPLING APPARATUS WITH MANUALLY RETRACTABLE FIRING SYSTEM", the specification of which is incorporated herein by reference, as well as the specification, is incorporated herein by reference in its entirety. Other components, mechanisms, and systems that may be used with any of the various replaceable surgical tool assemblies disclosed herein are disclosed.

Referring now to FIGS. 3 and 4, the replaceable surgical tool assembly 1000 has a surgical end effector 1500 that includes a first jaw 1600 and a second jaw 1800. In one configuration, the first jaw includes an elongated channel 1602 configured to operably support a surgical staple/fastener cartridge 1700 therein. The second jaw 1800 includes an anvil 1810 that is pivotally supported with respect to the elongated channel 1602. The replaceable surgical tool assembly 1000 can be configured to releasably hold the surgical end effector 1500 at a desired articulation position relative to the shaft axis SA _{1 and} an articulation joint 1302 and articulation lock 1400 (FIGS. 4-6). ) Can be included in the joint system 1300. Further details regarding joint systems and articulation locks are provided in the United States of America under the title "SURGICAL INSTRUMENT COMPRISING AN ARTICULATION SYSTEM LOCKABLE TO A FRAME," filed on the same date as this specification and incorporated herein by reference in its entirety. Patent application, attorney docket no. END 8217 USNP/170102.

As further seen in FIGS. 4 and 7-9, the replaceable surgical tool assembly 1000 includes a tool frame assembly 1200 that includes a tool chassis 1210 that operably supports a nozzle assembly 1240. In one form, the nozzle assembly 1240 consists of nozzle portions 1242, 1244 and an actuator wheel portion 1246 configured to be coupled to the assembled nozzle portions 1242, 1244 by snaps, protrusions, screws and the like. The replaceable surgical tool assembly 1000 is a proximal closure assembly 1900 operably coupled to a distal closure assembly 2000 used to open and close anvil 1810 of surgical end effector 1500, as described in further detail below. including. Additionally, replaceable surgical tool assembly 1000 includes spine assembly 1250 operably supporting proximal closure assembly 1900 and coupled to surgical end effector 1500. In various situations, to facilitate assembly, the spine assembly 1250 can be made from an upper spine portion 1251 and a lower spine portion 1252 interconnected to each other by a snap mechanism, adhesive, welding, or the like. In the assembled form, the spine assembly 1250 includes a proximal end 1253 rotatably supported within the tool chassis 1210. In one configuration, for example, the proximal end 1253 of the spine 1250 is attached to a spine bearing (not shown) configured to be supported within the tool chassis 1210. Such a configuration facilitates rotatable attachment of the spine assembly 1250 to the tool chassis 1210 and allows the spine assembly 1250 to selectively rotate with respect to the tool chassis 1210 about the shaft axis SA ₁ . Specifically, in one configuration, for example, the proximal end 1253 of the spine assembly 1250 is configured to receive corresponding nozzle protrusions 1245 that extend inwardly from each of the nozzle portions 1242, 1244, respectively. Includes portion 1254 (FIGS. 4, 5, 7, 8 and 10) and lower protrusion seat (not shown). Such a configuration facilitates rotation of the spine assembly 1250 about the shaft axis SA ₁ by rotating the actuator wheel portion 1246 of the nozzle assembly 1240.

As seen in FIGS. 4 and 5, the spine assembly 1250 further includes an intermediate spine shaft portion 1256 having a diameter less than the diameter of the proximal end 1253 of the spine assembly 1250. The intermediate spine shaft portion 1256 of the upper spine portion 1251 terminates in the upper protrusion attachment element 1260 and the intermediate spine shaft portion of the lower spine portion 1252 terminates in the lower protrusion attachment element 1270. As seen in most detail in FIG. 6, for example, the upper protrusion mounting element 1260 is formed with a protrusion slot 1262 adapted to mountably mount an upper mounting link 1264 therein. Similarly, the lower protrusion attachment element 1270 is formed with a protrusion slot 1272 adapted to mountably support the lower attachment link 1274 therein. The upper mounting link 1264 includes a pivot socket 1266 offset from the shaft axis SA ₁ . Pivot socket 1266 is adapted to rotatably receive therein a pivot pin 1634 formed on a channel cap or anvil retainer 1630 attached to proximal end portion 1610 of elongate channel 1602. The lower attachment link 1274 includes a lower pivot pin 1276 adapted to be received within a pivot hole 1611 formed in the proximal end portion 1610 of the elongated channel 1602. See FIG. 6. The lower pivot pin 1276 and the pivot hole 1611 are offset from the shaft axis SA ₁ . The lower pivot pin 1276 is vertically aligned with the pivot socket 1266 and defines an articulation axis AA ₁ about which the surgical end effector 1500 can articulate with respect to the shaft axis SA ₁ . .. Although articulation axis AA ¹ is transverse to the shaft axis SA _1, articulation axis AA ₁ is laterally offset from the shaft axis SA _1, does not intersect with the shaft axis SA _1.

6 and 15, the anvil 1810 in the illustrated example includes an anvil body 1812 terminating in an anvil attachment portion 1820. Anvil attachment portion 1820 is moveable or pivotable on elongate channel 1602 for selective pivotal movement about a fixed anvil pivot axis PA ₁ (FIG. 15) transverse to shaft axis SA ₁ . Supported by. In the configuration shown, a pivot member or anvil trunnion 1822 extends laterally from each lateral side of the anvil attachment portion 1820 and a corresponding trunnion formed in the upstanding wall 1612 of the proximal end portion 1610 of the elongated channel 1602. Received in cradle 1614. Anvil trunnions 1822 are pivotally retained within their corresponding trunnion cradle 1614 by channel caps or anvil retainers 1630. A channel cap or anvil retainer 1630 is configured to be received and retained in a corresponding projection groove or notch 1616 formed in the upstanding wall 1612 of the proximal end portion 1610 of the elongated channel 1602. It includes a mounting protrusion 1636.

In the illustrated example, surgical end effector 1500 is selectively articulated by articulation system 1300 about articulation axis AA ₁ . In one form, articulation system 1300 includes a proximal articulation driver 1310 pivotally coupled to articulation link 1320. As seen in most detail in FIG. 6, an offset mounting protrusion 1314 is formed on the distal end 1312 of the proximal articulation driver 1310. A pivot hole 1316 is formed in the offset mounting projection 1314 and is configured to pivotally receive a proximal link pin 1326 formed at the proximal end 1325 of the articulation link 1320 therein. The distal end 1322 of the articulation link 1320 has a pivot hole 1324 configured to pivotally receive a groove pin 1618 formed in the proximal end portion 1610 of the elongated channel 1602 therein. .. Accordingly, the axial movement of the proximal articulation driver 1310 thereby articulates the elongated channel 1602 to articulate the surgical end effector 1500 relative to the spine assembly 1250 about the articulation axis AA ₁ .

Movement of anvil 1810 relative to elongated channel 1602 is accomplished by axial movement of proximal closure assembly 1900 and distal closure assembly 2000. Referring now to FIGS. 4 and 7, in the illustrated configuration, the proximal closure assembly 1900 includes a proximal closure tube 1910 having a proximal closure tube section 1920 and a distal section 1930. The distal portion 1930 has a diameter that is smaller than the diameter of the proximal closure tube portion 1920. A proximal end 1922 of the proximal closure tube portion 1920 is rotatably supported within a closure shuttle 1940 that is slidably supported within the tool chassis 1210 to allow axial movement relative to the tool chassis. You can In one form, the closure shuttle 1940 includes a pair of proximal protruding hooks 1942 configured to be attached to attachment pins 516 attached to the closure coupling assembly 514 of the handle assembly 500. The proximal end 1922 of the proximal closure tube portion 1920 is coupled to the closure shuttle for relative rotation with respect to the closure shuttle 1940. For example, a U-shaped connector 1944 is inserted into the annular slot 1924 of the proximal closure tube section 1920 and retained within the vertical slot 1946 of the closure shuttle 1940. Such a configuration has the function of attaching the proximal closure assembly 1900 to the closure shuttle for axial movement with the closure shuttle 1940, while the proximal closure assembly 1900 is centered on the shaft axis SA ₁ relative to the closure shuttle 1940. It is possible to rotate. A closure spring 1948 (FIGS. 12-14) extends over the proximal closure tube portion 1920 to bias the closure shuttle 1940 in the proximal direction PD which causes the replaceable surgical tool assembly 1000 to handle assembly. Serves to pivot the closure trigger 512 (FIG. 2) of the handle assembly 500 to the non-actuated position when operably coupled to the 500.

Referring now to FIGS. 5 and 6, the distal portion 1930 of the proximal closure tube 1910 is attached to the distal closure assembly 2000. In the illustrated configuration, for example, the distal closure assembly 2000 includes an articulating connector 2010 coupled to the distal closure tube section 2030. In the illustrated example, the distal closure tube section 2030 has a diameter that is greater than the diameter of the distal section 1930 of the proximal closure tube 1910. The joint connector 2010 has a proximally extending end 2012 adapted to be received on a connecting flange 1934 formed at the distal end of the distal portion 1930. The joint connector 2010 can be retained on the connecting flange 1934 by a suitable fastening mechanism such as adhesive, welding, or the like. The joint connector 2010 includes an upper protrusion 2014 and a lower protrusion 2016 that project distally from the distal end of the joint connector 2010 and are movably coupled to the end effector closure sleeve or distal closure tube portion 2030. Distal closure tube portion 2030 includes an upper protrusion 2032 and a lower protrusion (not shown) projecting proximally from its proximal end. The upper double pivot link 2060 includes a proximal pin 2061 and a distal pin 2062 that engage corresponding holes 2015, 2034 in the upper protrusions 2014, 2032 of the joint connector 2010 and the distal closure tube portion 2030, respectively. There is. Similarly, the lower double pivot link 2064 includes a proximal pin 2065 and a distal pin 2066 that engage with corresponding holes 2019 in the lower protrusion 2016 of the articulated connector 2010 and the distal closure tube portion 2030, respectively. Contains. As described in more detail below, distal and proximal axial translation of proximal closure assembly 1900 and distal closure assembly 2000 results in the opening and closing of anvil 1810 relative to elongated channel 1602.

In at least one configuration, replaceable surgical tool assembly 1000 further includes a firing system, generally shown as 2100. In the illustrated example, firing system 2100 includes a firing member assembly 2110 supported for axial movement within shaft assembly 1250. In the illustrated embodiment, the firing member assembly 2110 includes an intermediate firing shaft portion 2120 configured to be attached to the distal cutting portion or knife bar 2130. Firing member assembly 2110 may also be referred to herein as a "second shaft" and/or a "second shaft assembly." As can be seen in FIG. 5, the intermediate firing shaft portion 2120 can include a longitudinal slot 2124 at its distal end 2122 that can be configured to receive the proximal end 2132 of the knife bar 2130. The longitudinal slot 2124 and the proximal end 2132 of the knife bar 2130 can be sized and configured to allow relative movement therebetween, and the slip joint 2134 can be configured. The slip joint 2134 allows the intermediate firing shaft portion 2120 of the firing member assembly 2110 to move to articulate the end effector 1500 without moving, or at least substantially moving, the knife bar 2130. After the end effector 1500 is properly oriented, the intermediate firing shaft portion 2120 is advanced distally by advancing the knife bar 2130 until the proximal sidewall of the longitudinal slot 2124 contacts a portion of the knife bar 2130, A surgical staple/fastening element cartridge 1700 disposed within the elongated channel 1602 can be fired. In the configuration shown, the proximal end 2127 of the intermediate firing shaft portion 2120 has a mounting cradle (not shown) at the distal end of the longitudinally movable drive member (not shown) of the firing drive system 530 within the handle assembly 500. A firing shaft mounting projection 2128 (FIG. 8) configured to be disposed within (not shown) is formed thereon. Such a configuration facilitates axial movement of the intermediate firing shaft portion 2120 during activation of firing drive system 530.

In addition to the above, the replaceable surgical tool assembly 1000 can include a shifter assembly 2200 that can be configured to selectively and releasably couple the proximal articulation driver 1310 to the firing system 2100. In one form, shifter assembly 2200 includes a locking collar, or locking sleeve 2210, disposed about an intermediate firing shaft portion 2120 of firing system 2100, locking sleeve 2210 having locking sleeve 2210 proximal articulation driver 1310. Can be rotated between an engaged position that couples the firing member assembly 2110 to an engaged position that the proximal articulation driver 1310 is not operably coupled to the firing member assembly 2110. When locking sleeve 2210 is in its engaged position, distal movement of firing member assembly 2110 can cause proximal articulation driver 1310 to move distally and, correspondingly, the proximity of firing member assembly 2110. Lateral movement can move the proximal articulation driver 1310 in a proximal direction. When the locking sleeve 2210 is in its disengaged position, movement of the firing member assembly 2110 is not transmitted to the proximal articulation driver 1310, so that the firing member assembly 2110 is independent of the proximal articulation driver 1310. Can move. In various situations, the proximal articulation driver 1310 may be held in place by the articulation lock 1400 when the proximal articulation driver 1310 is not moved proximally or distally by the firing member assembly 2110. ..

In the configuration shown, the intermediate firing shaft portion 2120 of the firing member assembly 2110 is formed with two opposing flat surfaces 2121 and 2123 having drive notches 2126 formed therein. See FIG. 8. As also seen in FIG. 13, the locking sleeve 2210 includes a cylindrical, or at least generally cylindrical body including a longitudinal opening 2212 configured to receive an intermediate firing shaft portion 2120 therethrough. There is. The locking sleeve 2210 is received for engagement within a corresponding portion of the drive notch 2126 of the intermediate firing shaft portion 2120 when the locking sleeve 2210 is in one position and the drive sleeve when in another position. It may include diametrically opposed inward locking projections 2214, 2216 that are not received within the notches 2126, thereby allowing relative axial movement of the locking sleeve 2210 and the intermediate firing shaft portion 2120. it can.

8 and 12-14, in the illustrated example, the locking sleeve 2210 is sized to be movably received within a notch 1319 in the proximal end 1318 of the proximal articulation driver 1310. And further includes a locked member 2218. With such a configuration, the locking sleeve 2210 can be rotated slightly to engage and disengage the intermediate firing shaft portion 2120 while remaining engaged with the notch 1319 in the proximal articulation driver 1310. Is. For example, when the locking sleeve 2210 is in its engaged position, the locking protrusions 2214, 2216 may be positioned within the drive notches 2126 of the intermediate firing shaft portion 2120 to provide a distal pushing force and/or a proximal direction. A pulling force may be transferred from firing member assembly 2110 to locking sleeve 2210. Such axial pushing or pulling motion is then transmitted from the locking sleeve 2210 to the proximal articulation driver 1310, thereby articulating the surgical end effector 1500. In effect, firing member assembly 2110, locking sleeve 2210, and proximal articulation driver 1310 move together when locking sleeve 2210 is in its engaged (articulating) position. On the other hand, when the locking sleeve 2210 is in its disengaged position, the locking projections 2214, 2216 are not received within the drive notches 2126 of the intermediate firing shaft portion 2120, resulting in a distal pushing force and/or nearness. The lateral pulling force may not be transmitted from firing member assembly 2110 to locking sleeve 2210 (and proximal articulation driver 1310).

In the illustrated example, the relative movement of the locking sleeve 2210 between the engaged and disengaged positions can be controlled by the shifter assembly 2200 interconnected with the proximal closure tube 1910 of the proximal closure assembly 1900. More specifically, referring to FIGS. 8 and 9, the shifter assembly 2200 further includes a shifter key 2240 configured to be slidably received in a keyway 2217 formed in the outer circumference of the locking sleeve 2210. I'm out. With such a configuration, the shifter key 2240 can move in the axial direction with respect to the lock sleeve 2210. With reference to FIGS. 8-11, shifter key 2240 includes an actuator protrusion 2242 extending through a cam slot or cam opening 1926 in proximal closure tube section 1920. See FIG. 9. In addition, the cam surface 2243 is also provided adjacent to the actuator projection 2242 configured to cammingly interact with the cam opening 1926 to respond to axial movement of the proximal closure tube section 1920. Rotate the shifter key 2240.

Also in the illustrated example, shifter assembly 2200 further includes a switch drum 2220 rotatably received on the proximal end portion of proximal closure tube portion 1920. As seen in FIGS. 10-14, the actuator protrusion 2242 extends through the axial slot portion 2222 within the switch drum 2220 and is movably received within the arcuate slot portion 2224 of the switch drum 2220. A switch drum torsion spring 2226 (FIGS. 12-14) is mounted on the switch drum 2220 and engages the nozzle portion 1244 until the actuator protrusion 2242 reaches the end of the arcuate slot portion 2224. A twisting bias or rotation (arrow SR in FIGS. 10 and 11) that serves to rotate 2220 may be applied. Please refer to FIG. 11 and FIG. When in that position, the switch drum 2220 can impart a torsional bias to the shifter key 2240, which causes the locking sleeve 2210 to rotate with the intermediate firing shaft portion 2120 into its engaged position. This position also corresponds to the non-actuated configuration of proximal closure assembly 1900. In one configuration, for example, when the proximal closure assembly 1900 is in a non-actuated configuration (the anvil 1810 is in an open position spaced from the surgical staple/fastening element cartridge 1700), the actuator projection 2242 may be a proximal closure tube. Located in the upper portion of the cam opening 1926 in the portion 1920. When in that position, actuation of the intermediate firing shaft portion 2120 causes the proximal articulation driver 1310 to move axially. Once the user articulates surgical end effector 1500 in the desired orientation, the user can then actuate proximal closure assembly 1900. Actuation of the proximal closure assembly 1900 causes the proximal closure tube section 1920 to move distally, ultimately exerting a closing motion on the anvil 1810. This distal movement of the proximal closure tube portion 1920 causes the cam opening 1926 to cammatically interact with the cam surface 2243 of the actuator projection 2242, which causes the shifter key 2240 to rotate the locking sleeve 2210 in the actuation direction AD. .. Such rotation of lock sleeve 2210 disengages lock projections 2214, 2216 from drive notch 2126 of intermediate firing shaft portion 2120. When in such a configuration, firing drive system 530 can be activated without actuating proximal articulation driver 1310 to activate intermediate firing shaft portion 2120. Further details regarding the operation of switch drum 2220 and locking sleeve 2210, as well as alternative articulation and firing drive mechanisms that may be used with the various interchangeable surgical tool assemblies described herein, are disclosed therein. See US patent application Ser. No. 13/803,086 (current US patent application publication No. 2014/0263541) and US patent application Ser. No. 15/019,196, the entire contents of which are incorporated herein by reference. be able to.

Referring again to FIGS. 8-13, the switch drum 2220 may further include openings 2228, 2230 having at least a portion of the perimeter thereof, such openings extending from the nozzle portions 1242, 1244 to provide the switch. A circumferential projection/mount 1245 can be received that allows relative rotation between the drum 2220 and the nozzle assembly 1240 but not linear motion. Such nozzle protrusions 1245 extend through corresponding openings 1923 in the proximal closure tube portion 1920 and are located in the protrusion seats 1254 of the spine assembly 1250. Please refer to FIG. 8 and FIG. With such a configuration, the user can rotate the spine assembly 1250 about the shaft axis by rotating the nozzle assembly 1240.

As also shown in FIGS. 7 and 12-14, the replaceable tool assembly 1000 transfers power to and/or from the surgical end effector 1500, and/or the surgical end effector 1500, for example. A slip ring assembly 1230 that may be configured to communicate signals from the surgical end effector and/or back to the microprocessor 560 (FIG. 2) in the handle assembly 500 or robot system controller. You can Further details regarding the slip ring assembly 1230 and associated connectors can be found in US patent application Ser. No. 13/803,086, now US Pat. App. Pub. No. 2014/0263541, the entire contents of each of which is incorporated herein by reference. ) And U.S. patent application Ser. No. 15/019,196, and U.S. patent application Ser. It can now be found in U.S. Patent Application Publication No. 2014/0263552). The replaceable surgical tool assembly 1000 also includes at least one switch drum 2220 configured to detect the position of the switch drum 2220, as described in further detail in the aforementioned patent applications, which are incorporated herein by reference. A sensor can be included.

Referring again to FIG. 2, the tool chassis 1210 includes at least one dovetail slot 507 adapted to be received within a corresponding dovetail slot 507 formed within the distal end portion of the handle frame 506 of the handle assembly 500. , Preferably two tapered mounting portions 1212 are formed. Various replaceable surgical tool assemblies utilize a latch system 1220 for releasably connecting replaceable surgical tool assembly 1000 to handle frame 506 of handle assembly 500. As seen in FIG. 7, for example, in at least one form, the latch system 1220 includes a lock member or lock yoke 1222 movably coupled to the tool chassis 1210. In the illustrated embodiment, for example, the lock yoke 1222 has a U-shape with two spaced apart, downwardly extending legs 1223. Each of the legs 1223 is formed with a pivoting protrusion (not shown) adapted to be received in a corresponding hole formed in the tool chassis 1210. Such a configuration facilitates pivotable attachment of the lock yoke 1222 to the tool chassis 1210. The locking yoke 1222 is configured to releasably engage a corresponding locking detent or groove 509 at the distal end of the handle frame 506 of the handle assembly 500, with two proximally projecting locking protrusions 1224. Can be included. See FIG. In various configurations, the lock yoke 1222 is biased proximally by a spring or biasing member 1225. Actuation of the lock yoke 1222 can be accomplished by a latch button 1226 slidably mounted on a latch actuator assembly 1221 mounted on the tool chassis 1210. The latch button 1226 can be biased proximally with respect to the lock yoke 1222. The lock yoke 1222 can be moved to an unlocked position by biasing the latch button 1226 distally, which further causes the lock yoke 1222 to pivot and retain its engagement with the distal end of the handle frame 506. Get out of alignment. When the locking yoke 1222 is in a "retaining engagement" with the distal end of the handle frame 506, the locking projections 1224 are retained in corresponding lock detents or grooves 509 at the distal end of the handle frame 506. Will be placed.

In the illustrated arrangement, the lock yoke 1222 includes at least one, and preferably two lock hooks 1227 adapted to contact corresponding lock projections 1943 formed on the closure shuttle 1940. When the closure shuttle 1940 is in the non-actuated position, the lockable yoke 1222 can be pivoted distally to unlock the replaceable surgical tool assembly 1000 from the handle assembly 500. When in that position, the locking hook 1227 is not in contact with the locking projection portion 1943 of the closure shuttle 1940. However, when the closing shuttle 1940 is moved to the actuated position, the lock yoke 1222 is prevented from pivoting to the unlocked position. In other words, if the clinician attempts to pivot the lock yoke 1222 to the unlocked position, or is the lock yoke 1222 inadvertently struck, such as pivoting distally? Alternatively, when contacted, the lock hook 1227 of the lock yoke 1222 contacts the lock projection portion 1943 of the closure shuttle 1940 to prevent the lock yoke 1222 from moving to the unlocked position.

Referring again to FIG. 6, the knife bar 2130 can have a laminated beam structure that includes at least two beam layers. Such beam layers may include, for example, stainless steel bands, which are welded or pinned together, eg, at their proximal ends and/or elsewhere along their length. Are interconnected by. In an alternative embodiment, the distal ends of the bands are not connected to each other to allow the stacks or bands to expand relative to each other when the end effector is articulating. Such a configuration allows knife bar 2130 to be sufficiently flexible to accommodate articulation of the end effector. Various laminated knife bar configurations are disclosed in US Patent Application No. 15/019,245, entitled "SURGICAL INSTRUMENTS WITH CLOSURE STROKURE REDUCTION ARRANGENEMENTS", the entire contents of which are incorporated herein by reference. .. As can also be seen in FIG. 6, firing shaft support assembly 2300 provides lateral support to knife bar 2130 as the central support member flexes to accommodate articulation of surgical end effector 1500. Used. Further details regarding the operation of the firing shaft support assembly 2300 and alternative knife bar support mechanisms may be found in US patent application Ser. INSTRUMENTS WITH CLOSE STROKE REDUCTION ARRANGEMENTS", and US patent application Ser.

As also seen in FIG. 6, a firing or knife member 2140 is attached to the distal end of knife bar 2130. In one exemplary form, firing member 2140 includes a body portion 2142 that supports a knife or tissue cutting portion 2144. Body portion 2142 projects through elongated slot 1604 of elongated channel 1602 and terminates in laterally extending foot members 2146 on each side of body portion 2142. As firing member 2140 is driven distally through surgical staple/fastening element cartridge 1700, foot member 2146 rides within passageway 1622 of elongate channel 1602 underlying surgical staple/fastening element cartridge 1700 ( (Fig. 48). In one configuration, the body portion 2142 includes two laterally projecting central tabs 2145 that may ride over a central passageway inside the surgical staple/fastening element cartridge 1700. See FIG. 6. The tissue cutting portion 2144 is disposed between the distally projecting upper nose portions 2143. As can be seen further in FIG. 6, firing member 2140 can further include two laterally extending top tabs, pins, or anvil engagement features 2147. When firing member 2140 is driven distally, the upper portion of body portion 2142 extends through centrally located anvil slot 1814 and anvil engagement features 2147 correspond to the anvil slots 1814 formed on opposite sides thereof. Ride on the anvil shelf 1816. In one configuration, the top of the anvil body 1812 has an opening 1817 to facilitate assembly of the anvil 1810 and firing member 2140 configurations. When the anvil 1810 is assembled over the elongated channel 1602 and the firing member 2140 is installed, the opening 1817 is covered by an anvil cap 1819 attached to the anvil body 1812 by welding or other suitable fastening means.

Returning to FIG. 6, the firing member 2140 is configured to operably interconnect with a sled assembly 2150 operably supported within the body 1702 of the surgical staple/fastening element cartridge 1700. The sled assembly 2150 is slidable within the surgical staple/fastening element cartridge body 1702 from a proximal start position adjacent the proximal end 1704 of the cartridge body 1702 to an end position adjacent the distal end 1706 of the cartridge body 1702. Can be displaced. The cartridge body 1702 operably supports therein a plurality of staple drivers (not shown) arranged in rows on both sides of a centrally located slot 1708. Centrally located slot 1708 allows firing member 2140 to cut tissue clamped between anvil 1810 and surgical staple/fastening element cartridge 1700 through the slot. Associated with each driver is a respective staple/fastening element pocket 1712 that opens into the upper deck surface 1710 of the cartridge body 1702. Each of the staple drivers carries one or more surgical staple/fastening elements or fastening elements (not shown). The sled assembly 2150 includes a plurality of angled or wedge-shaped cams 2152, each cam 2152 corresponding to a particular line of fastening elements or drivers located on the sides of the slot 1708.

The attachment of the replaceable surgical tool assembly 1000 to the handle assembly 500 will now be described with reference to FIG. To initiate the coupling process, the clinician handles the tool chassis 1210 of the replaceable surgical tool assembly 1000 such that the tapered attachment portion 1212 formed on the tool chassis 1210 is aligned with the dovetail slot 507 of the handle frame 506. It may be located above or adjacent to the distal end of frame 506. The clinician then moves the surgical tool assembly 1000 along a mounting axis IA perpendicular to the shaft axis SA ₁ to cause the tapered mounting portion 1212 to “operate” with the corresponding dovetail receiving slot 507 at the distal end of the handle frame 506. It can be placed in a "possibly engaged" state. In doing so, the firing shaft mounting protrusion 2128 of the intermediate firing shaft portion 2120 is also disposed within the mounting cradle (not shown) of the longitudinally movable drive member (not shown) within the handle assembly 500, and the closure link 514. A portion of the upper mounting pin 516 is located within the corresponding hook 1942 of the closure shuttle 1940. As used herein, the term "operable engagement" in the context of two components means that the two components are fully engaged with each other, thereby applying an actuating motion thereto. It means that the component can perform the intended action, function, and/or procedure.

During a typical surgical procedure, a clinician can introduce a surgical end effector 1500 to a surgical site through a trocar or other opening in a patient to access target tissue. In doing so, the clinician typically axially aligns surgical end effector 1500 along the shaft axis (non-articulated). After passing the surgical end effector 1500 through the trocar port, it may be necessary for the clinician, for example, to articulate the end effector 1500 to advantageously position it adjacent the target tissue. This is before the anvil is closed over the target tissue, so the closure drive system 510 remains inactive. When in this position, actuation of firing drive system 530 adds articulation to proximal articulation driver 1310. When the end effector is in the desired articulation position, the firing drive system 530 can be stopped to retain the surgical end effector 1500 in the articulated position of the articulation lock 1400. The clinician can then actuate the closure drive system 510 to close the anvil 1810 onto the target tissue. Actuation of such closure drive system 510 may also cause the shifter assembly 2200 to separate the proximal articulation driver from the intermediate firing shaft portion 2120. Thus, once the target tissue is captured within the surgical end effector 1500, the clinician can reactivate the firing drive system 530 to axially advance the firing member 2140 through the surgical staple/fastening element cartridge 1700. The clamped tissue can be cut and staples can be fired into the cut tissue. Other closure and firing drive mechanisms, actuator mechanisms (both hand-held manual and automatic types, or robotic types) may be used without departing from the spirit and scope of various inventions disclosed herein. It is also possible to control the axial movement of the closure system components, articulation system components, and/or firing system components of the tooling assembly 1000.

Referring now to FIG. 1, the surgical system 10 shown in this figure includes four replaceable surgical tool assemblies 1000, 3000, 5000 and 7000, each of which is the same for performing different surgical procedures. It can be effectively used with the handle assembly 500. 16-18, replaceable surgical tool assembly 3000 includes a surgical end effector 3500 that includes a first jaw 3600 and a second jaw 3800. In one configuration, the first jaw includes an elongated channel 3602 configured to operably support a surgical staple/fastening element cartridge 3700 therein. The second jaw 3800 includes an anvil 3810 pivotally supported on the elongated channel 3602. The replaceable surgical tool assembly 3000 includes an articulation system 3300 that includes an articulation joint 3302 and an articulation lock 3400 that can be configured to releasably hold the surgical end effector 3500 at a desired articulation position relative to the shaft axis SA ₂ . Can be included. Details regarding construction and operation of articulation lock 3400, as well as alternative lock construction and operation details, are provided in US patent application Ser. No. 13/803,086, the disclosure of which is incorporated herein by reference in its entirety. The title of the invention may be found in "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING AN ARTICULATION LOCK", now US Patent Application Publication No. 2014/0263541. Further details regarding articulation lock 3400 may be found in US patent application Ser. No. 15/019,196, filed Feb. 9, 2016, entitled “Invention”, the disclosure of which is hereby incorporated by reference in its entirety. It can also be found in "SURGICAL INSTRUMENT ARTICULATION MECHANISM WITH SLOTTED SECONDARY CONSTRAINT".

As seen in FIG. 17, the replaceable surgical tool assembly 3000 includes a tool frame assembly 3200 that includes a tool chassis 3210 that operably supports a nozzle assembly 3240. In one form, the nozzle assembly 3240 comprises a nozzle portion 3242, 3244 and an actuator wheel portion 3246 configured to be coupled to the assembled nozzle portion 3242, 3244 by snaps, protrusions, screws, and the like. .. The replaceable surgical tool assembly 3000 includes a proximal closure assembly 3900 operably coupled to a distal closure assembly 4000 used to open and close anvil 3810 of surgical end effector 3500, as described in further detail below. Is included. In addition, the replaceable surgical tool assembly 3000 operatively supports the proximal closure assembly 3900 and includes an "elastic" spine assembly 3250 coupled to the surgical end effector 3500. One exemplary form of spine assembly 3250 is U.S. patent application Ser. No. 15/385,911, the title of which is "SURGICAL STAPLE/FASTENERS WITH INDEPENDENTLY ACTUATAABLE", the disclosure of which is incorporated herein by reference in its entirety. CLOSED AND FIRING SYSTEMS". For example, the spine assembly 3250 has an elastic spine having a proximal end portion 3253 and a distal end portion 3280 separated from the proximal end portion 3253 of the elastic spine assembly 3250 by a tensioning mechanism 3228 formed therebetween. A member can be included. Additionally, a stretch limiting insert 3284 is supported for retention between the distal end 3280 and the proximal end 3253. In different configurations, the elastic spine assembly 3250 can be made of, for example, a suitable polymeric material, rubber, or the like, having an elastic modulus shown as ME ₁ for reference purposes. The extension limiting insert 3284 may have a modulus shown as ME ₂ for reference purposes. In various situations, the stretch limiting insert 3284 also includes a pair of stretch limiters 3285 (only one of which is shown in FIG. 17). The extension limiter 3285 can have an ME ₃ elastic modulus for reference purposes. In at least one configuration, ME ₃ <ME ₂ <ME ₁ . Further details regarding at least one implementation of elastic spine assembly 3250 and extension limiting insert 3284 can be found in US patent application Ser. No. 15/385,911.

In the configuration shown, the distal end portion 3280 of the spine assembly 3250 has an opening 3281 to facilitate assembly. A spine cap 3283 may be attached to the interior 3281 over the opening 3281 after the various components are assembled. In the assembled form, the proximal end portion 3253 of the spine assembly 3250 is rotatably supported within the tool chassis 3210. In one configuration, for example, the proximal end of the proximal end portion 3253 of the spine assembly 3250 is attached to a spine bearing (not shown) configured to be supported within the tool chassis 3210. Such a configuration facilitates rotatable attachment of the spine assembly 3250 to the tool chassis 3210 and allows the spine assembly 3250 to selectively rotate with respect to the tool chassis 3210 about the shaft axis SA ₂ . Specifically, in one configuration, for example, the proximal end portion 3253 of the spine assembly 3250 is configured to receive corresponding nozzle protrusions (not shown) each extending inwardly from each of the nozzle portions 3242, 3244. Two diametrically opposite projection seats 3254 (only one visible in FIG. 17). Such a configuration facilitates rotation of the spine assembly 3250 about the shaft axis SA ₂ by rotating the actuator wheel portion 3246 of the nozzle assembly 3240.

Referring now to FIG. 18, the distal end 3280 of the elastic spine assembly 3250 is attached to the distal frame portion 3286 operatively supporting the articulation lock 3400 therein. The spine assembly 3250 is configured to (1) slidably support the firing member assembly 4110 therein and (2) slidably support a proximal closure tube 3910 extending around the spine assembly 3250. ing. The spine assembly 3250 can also be configured to slidably support the proximal articulation driver 3310. As seen in FIG. 18, the distal frame segment 3286 is pivotally coupled with the elongated channel 3602 by an end effector attachment assembly 3290. In one configuration, for example, a pivot pin 3288 is formed at the distal end of the distal frame portion 3286. Pivot pin 3288 is adapted to be pivotally received within a pivot hole 3292 formed in a pivot base 3291 of end effector attachment assembly 3290. End effector attachment assembly 3290 is attached to proximal end 3610 of elongate channel 3602 by spring pin 3620 or other suitable member received in attachment hole 3611 of proximal end portion 3610. The pivot pin 3288 defines an articulation axis AA ₂ transverse to the shaft axis SA ₂ . See FIG. 18. Such a mechanism facilitates pivotal movement (ie, articulation) of surgical end effector 3500 about articulation axis AA ₂ relative to elastic spine assembly 3250. Distal frame portion 3286 is further configured to internally support articulation lock 3400. Various articulation lock configurations can be used. At least one form of articulation lock 3400, U.S. patent application Ser. No. 13/803,086, the title of which is incorporated herein by reference in its entirety, is the title "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING AN ARTICULATION LOCK". , US Patent Application Publication No. 2014/0263541, in more detail. Further details regarding articulation locks can also be found in US patent application Ser. No. 15/019,196 (filed February 9, 2016), entitled "SURGICAL INSTRUMENT ARTICULATION MECHANISM WITH SLOTED SECONDARY CONSTRAINT".

In the illustrated example, surgical end effector 3500 can be selectively articulated about articulation axis AA ₂ by articulation system 3300. In one form, articulation system 3300 includes a proximal articulation driver 3310 operatively interacting with articulation lock 3400. Articulation lock 3400 includes an articulation frame 3402 adapted to operably engage a drive pin 3293 on a pivot base 3291 of end effector mounting assembly 3290. Further, the cross link 3294 can be coupled to the drive pin 3293 and the articulation frame 3402 to assist articulation of the surgical end effector 3500. As mentioned above, further details regarding the operation of articulation lock 3400 and articulation frame 3402 can be found in US Patent Application No. 13/803,086, now US Patent Application Publication No. 2014/0263541. Further details regarding the end effector mounting assembly and cross link 3294 can be found in US patent application Ser. No. 15/019,245, filed Feb. 9, 2016, the disclosure of which is incorporated herein by reference in its entirety. It can be found in the title of the invention "SURGICAL INSTRUMENTS WITH CLOSE STROKE REDUCTION ARRANGEMENTS". As described further herein, and in other disclosures incorporated herein by reference, axial movement of the proximal articulation driver 3310 causes articulation lock 3400 to engage/disengage, Causes articulation to be applied to elongated channel 3602, which causes surgical end effector 3500 to articulate with respect to spine assembly 3250 about articulation axis AA ₂ .

Anvil 3810 in the illustrated example includes an anvil body 3812 terminating in anvil attachment portion 3820. Anvil attachment portion 3820 is moveable or pivotable on elongated channel 3602 for selective pivotal movement about a fixed anvil pivot axis PA ₂ (FIG. 18) transverse to shaft axis SA ₂ . Supported by. In the configuration shown, anvil trunnions 3822 extend laterally from each lateral side of the anvil attachment portion 3820 and have corresponding trunnion pivot holes 3613 formed in the upstanding wall 3612 of the proximal end portion 3610 of the elongated channel 3602. Accepted within. Movement of anvil 3810 relative to elongated channel 3602 is accomplished by axial movement of proximal closure assembly 3900 and distal closure assembly 4000. In the configuration shown, the proximal closure assembly 3900 includes a proximal closure tube 3910 having a proximal end 3912 and a distal end 3914. The proximal end 3912 is rotatably supported within a closed shuttle 3940 that is slidably supported within the tool chassis 3210 to allow axial movement relative to the tool chassis. In one form, the closure shuttle 3940 has a pair of proximal projecting hooks 3942 configured to attach to transverse mounting pins 516 that attach to the closure coupling assembly 514 of the handle assembly 500. The proximal end 3912 is coupled to the closure shuttle for rotation relative to the closure shuttle 3940. For example, a U-shaped connector 3944 is inserted into the annular slot 3916 at the proximal end 3912 and retained within the vertical slot 3946 of the closure shuttle 3940. Such a configuration has the function of attaching the proximal closure assembly 3900 to the closure shuttle for axial movement with the closure shuttle 3940 while the proximal closure tube 3910 rotates relative to the closure shuttle 3940 about the shaft axis SA _2. It is possible to do. As described above in connection with the replaceable surgical tool assembly 1000, a closure spring (not shown) extends over the proximal end 3912 of the proximal closure tube 3910 to move the closure shuttle 3940 in the proximal direction. Biasing the PD, which deactivates the closure trigger 512 (FIG. 2) of the handle assembly 500 when the replaceable surgical instrument assembly 3000 is operably coupled with the handle assembly 500 as described above. It can perform the function of pivoting into position.

As seen in FIG. 18, the distal end 3914 of the proximal closure tube 3910 is attached to the distal closure assembly 4000. Distal end 3914 includes an upper protrusion 3917 and a lower protrusion 3918 configured to be movably coupled to an end effector closure sleeve or distal closure tube portion 4030. Distal closure tube portion 4030 includes an upper protrusion 4032 and a lower protrusion 4034 that project proximally from its proximal end. As described above, the upper double pivot link 4060 pivotally connects the upper protrusion 3917 and the upper protrusion 4032, and the lower double pivot link 4064 connects the lower protrusion 3918 and the lower protrusion 4034. Are pivotally connected together. Distal advancement of the distal closure tube portion 4030 over the anvil attachment portion 3820 causes closure or pivotal movement of the anvil 3810 about the fixed anvil pivot axis PA ₂ towards the elongated channel 3602. In the configuration shown, the distal closure tube portion 4030 also includes a positive jaw or anvil opening mechanism 4040 configured to cooperate with a surface or beveled portion of the anvil attachment portion 3820, thus providing a distal closure. Anvil 3810 pivots from the closed position to the open position as tube portion 4030 moves proximally back to the starting position. Other embodiments may not use a positive jaw opening mechanism, but may use springs or springs to bias the anvil to the open position when the distal closure tube section retracts to its most proximal starting position. You may rely on other biasing mechanisms. Further details regarding the construction and operation of the anvil opening mechanism can be found in U.S. patent application Ser.

In the configuration shown, the replaceable surgical tool assembly 3000 further includes a firing system, generally shown as 4100. In various examples, firing system 4100 includes firing member assembly 4110 supported for axial movement within spine assembly 3250. In the illustrated embodiment, the firing member assembly 4110 includes an intermediate firing shaft portion 4120 configured to attach to the distal cutting portion or knife bar 4130. A support bushing mechanism 4121 may be used to support the intermediate firing shaft portion 4120 within the spine assembly 3250. Firing member assembly 4110 may also be referred to herein as a "second shaft" and/or a "second shaft assembly." As can be seen in FIG. 18, the intermediate firing shaft portion 4120 can include a longitudinal slot 4124 at the distal end 4122 that can be configured to receive the proximal end 4132 of the knife bar 4130. The longitudinal slot 4124 and the proximal end 4132 of the knife bar 4130 can be sized and configured to allow relative movement therebetween and can include a slip joint 4134. As mentioned above, the slip joint 4134 can move the intermediate firing shaft portion 4120 of the firing member assembly 4110 to articulate the end effector 3500 without moving, or at least substantially moving, the knife bar 4130. To do. As mentioned above, in the illustrated configuration, the proximal end 4127 of the intermediate firing shaft portion 4120 is remote from a longitudinally movable drive member (not shown) of the firing drive system 530 within the handle assembly 500. A firing shaft mounting projection 4128 is formed that is configured to be placed in a mounting cradle (not shown) at the proximal end. Such a configuration facilitates axial movement of the intermediate firing shaft portion 4120 during activation of firing drive system 530. Other mounting configurations for connecting the intermediate firing shaft portion 4120 to other firing drive mechanisms (eg, manual actuation, robots, etc.) may also be used.

In addition to the above, the replaceable tool assembly 3000 may be configured to selectively and releasably couple the proximal articulation driver 3310 to the firing member assembly 4110 in a manner as described above. Can be included. In one form, the shifter assembly 4200 includes a locking collar, or locking sleeve 4210, disposed around the intermediate firing shaft portion 4120 of the firing member assembly 4110, the locking sleeve 4210 including a locking sleeve 4210 proximal articulation driver. The proximate articulation driver 3310 can be rotated between an engaged position that connects the 3310 to the firing member assembly 4110 and an unlocked position in which the proximal articulation driver 3310 is not operably coupled to the firing member assembly 4110. As mentioned above, the drive notch 4126 is formed in the intermediate firing shaft portion 4120 of the firing member assembly 4110. Lock sleeve 4210 includes a cylindrical, or at least substantially cylindrical body that includes a longitudinal opening 4212 configured to receive intermediate firing shaft portion 4120 therethrough. As described in further detail above, the locking sleeve 4210 is received for engagement within a corresponding portion of the drive notch 4126 of the intermediate firing shaft portion 4120 when the locking sleeve 4210 is in one position, In another position, diametrically opposed inward, not received within drive notch 4126, thereby allowing relative axial movement between locking sleeve 4210 and intermediate firing shaft 4120. Locking protrusions 4214, 4216 may be included. Locking sleeve 4210 further includes a locking member 4218 sized to be movably received within notch 3319 at the proximal end of proximal articulation driver 3310. When the locking sleeve 4210 is in its engaged position, the locking projections 4214, 4216 are positioned within the drive notches 4126 of the intermediate firing shaft portion 4120 to provide a distal pushing force and/or a proximal pulling force. Can be transmitted from the firing member assembly 4110 to the locking sleeve 4210. Such axial pushing or pulling motion is then transmitted from the locking sleeve 4210 to the proximal articulation driver 3310, thereby articulating the surgical end effector 3500.

As noted above, in the illustrated example, relative movement of the locking sleeve 4210 between the engaged and disengaged positions results in shifter assembly 4200 interconnected with the proximal closure tube 3910 of the proximal closure assembly 3900. Can be controlled by. The shifter assembly 4200 further includes a shifter key 4240 configured to be slidably received within a keyway (similar to the keyway 2217 shown in FIG. 8) formed on the outer periphery of the lock sleeve 4210. There is. With such a configuration, the shifter key 4240 can move in the axial direction with respect to the lock sleeve 4210. The operation of shifter assembly 4200 may be the same as that of shifter assembly 2200, but this has been described in further detail above and will not be repeated again for the sake of brevity. Further details that can be used, alternative configurations and drive configurations are described in US patent application Ser. No. 13/803,086 (current U.S. Patent Application Publication No. 2014/0263541) and U.S. Patent Application No. 15/019,196, as well as other disclosures incorporated herein by reference.

As mentioned above, the replaceable tool assembly 3000 may, for example, convey power to and/or from the surgical end effector 3500 and/or to the surgical end effector 3500 and/or the surgical end effector 3500. A slip ring assembly 3230 may be included that may be configured to communicate a signal from an end effector 3500 for communication back to the microprocessor 560 in the handle assembly 500 or robot system controller. Further details regarding the slip ring assembly 3230 and associated connectors can be found in US patent application Ser. No. 13/803,086, now US Pat. App. Pub. ) And U.S. patent application Ser. No. 15/019,196, and U.S. patent application Ser. It can be found at present in U.S. Patent Application Publication No. 2014/0263552).

The illustrated replaceable surgical tool assembly 3000 also uses a latch system 3220 to removably couple the replaceable surgical tool assembly 3000 to, for example, the handle frame 506 of the handle assembly 500. Latch system 3220 may be the same as latch system 1220 detailed above. The knife bar 4130 can include a laminated beam structure that includes at least two beam layers. Such beam layers may include, for example, stainless steel bands, which are welded or pinned together, eg, at their proximal ends and/or elsewhere along their length. Are interconnected by. In an alternative embodiment, the distal ends of the bands are not connected to each other to allow the stacks or bands to expand relative to each other when the end effector is articulating. Such a configuration allows knife bar 4130 to be sufficiently flexible to accommodate the articulation of the end effector. Various laminated knife bar configurations are disclosed in US Patent Application No. 15/019,245, entitled "SURGICAL INSTRUMENTS WITH CLOSURE STROKURE REDUCTION ARRANGENEMENTS", the entire contents of which are incorporated herein by reference. .. As can also be seen in FIG. 18, firing shaft support assembly 4300 provides lateral support to knife bar 4130 as the central support member flexes to accommodate articulation of surgical end effector 3500. Used. Further details regarding the operation of the firing shaft support assembly 4300 and alternative knife bar support mechanisms may be found in US patent application Ser. INSTRUMENTS WITH CLOSE STROKE REDUCTION ARRANGEMENTS", and US patent application Ser.

As also seen in FIG. 18, a firing member or knife member 4140 is attached to the distal end of knife bar 4130. The firing member 4140 is configured to operably interconnect with a sled assembly 4150 that is operably supported within the body 3702 of the surgical staple/fastening element cartridge 3700. The sled assembly 4150 is slidable within the surgical staple/fastening element cartridge body 3702 from a proximal start position adjacent the proximal end 3704 of the cartridge body 3702 to an end position adjacent the distal end 3706 of the cartridge body 3702. Can be displaced. The cartridge body 3702 operably supports therein a plurality of staple drivers (not shown) that are aligned with the rows on both sides of the centrally located slot 3708. Centrally located slot 3708 allows firing member 4140 to cut through tissue clamped between anvil 3810 and staple cartridge 3700. The driver is associated with a corresponding staple pocket 3712 that opens into the deck surface 3710 of the cartridge body 3702. Each of the staple drivers carries one or more surgical staple/fastening elements or fastening elements (not shown). The sled assembly 4150 includes a plurality of angled or wedge-shaped cams 4152, each cam 4152 corresponding to a particular line of fastening elements or drivers located on the sides of the slot 3708.

In one exemplary form, firing member 4140 includes a body portion 4142 that supports a knife or tissue cutting portion 4144. See FIG. 49. Body portion 4142 projects through elongated slot 3604 of elongated channel 3602 and terminates in laterally extending foot members 4146 on each side of body portion 4142. As the firing member 4140 is driven distally through the surgical staple/fastening element cartridge 3700, the foot member 4146 rides within the passageway 3622 of the elongated channel 3602 located below the surgical staple/fastening element cartridge 3700. The tissue cutting portion 4144 is disposed between the distally projecting upper nose portion 4143. As can be further seen in FIG. 18, firing member 4140 can further include two laterally extending top tabs, pins, or anvil engagement features 4147. When firing member 4140 is driven distally, the upper portion of body portion 4142 extends through centrally located anvil slot 3814 and anvil engagement features 4147 correspond to the anvil slots 3814 formed on opposite sides thereof. It is located on the shelf 3816. Further details regarding firing members 4140, sled assemblies 4150 and their various alternatives, and examples of their operation are described in further detail below and also in US Patent Application No. 15/385,911, invention. Can also be seen in the name of "SURGICAL STAPLE/FASTENERS WITH INDEPENDENTLY ACTUATABLE CLOSING AND FIRING SYSTEMS". The replaceable surgical tool assembly 3000 can be with respect to the handle assembly 500 in the manner described above for the replaceable surgical tool assembly 1000.

Referring again to FIG. 1, as mentioned above, the surgical system 10 shown in this figure includes four replaceable surgical tool assemblies 1000, 3000, 5000 and 7000, each of which is different. It can be effectively used with the same handle assembly 500 to perform a surgical procedure. With reference now to FIGS. 19-21, the replaceable surgical instrument assembly 5000 includes a surgical end effector 5500 including a first jaw 5600 and a second jaw 5800. In one configuration, the first jaw comprises an elongated channel 5602 configured to operably support the surgical staple/fastening element cartridge 5700 therein. The second jaw 5800 includes an anvil 5810 movably supported with respect to the elongated channel 5602. The replaceable surgical instrument assembly 5000 includes an articulation system 5300 that includes an articulation joint 5302 and an articulation lock 5400 that can be configured to releasably retain the surgical end effector 5500 at a desired articulation position relative to the shaft axis SA ₃ . Can be included. Details regarding the construction and operation of the articulation lock 5400, as well as details of alternative locking mechanisms and operations, may be found in US patent application Ser. No. 15/385,894, the disclosure of which is incorporated herein by reference in its entirety. Can be found under the name "SHAFT ASSEMBLY COMPRISING A LOCK OUT". An alternative articulation lock arrangement is described in US patent application Ser. No. 13/803,086, titled “ARTICULATABLE SURGICAL INSTRUMENT COMPRISING AN ARTICULATION LOCK” (current US patent application publication no. 2014/0263541), and 20162. See also U.S. Patent Application No. 15/019,196, filed March 9, entitled "SURGICAL INSTRUMENT ARTICULATION MECHANISM WITH SLOTTED SECONDARY CONSTRAINT", the entire disclosure of each of these references being incorporated herein. Are incorporated by reference.

As further seen in FIG. 20, replaceable surgical tool assembly 5000 includes a tool frame assembly 5200 that includes a tool chassis 5210 that operably supports a nozzle assembly 5240. In one form, the nozzle assembly 5240 is comprised of nozzle portions 5242, 5244 and an actuator wheel portion 5246 configured to be coupled to the assembled nozzle portions 5242, 5244 by snaps, protrusions, screws, etc. .. The replaceable surgical tool assembly 5000 is a proximal closure assembly 5900 operably coupled to a distal closure assembly 6000 used to open and close anvil 5810 of surgical end effector 5500, as described in further detail below. Is included. In addition, the replaceable surgical tool assembly 5000 includes a spine assembly 5250 operably supporting the proximal closure assembly 5900 and coupled to the surgical end effector 5500. In the configuration shown, the spine assembly 5250 includes a distal end portion 5280 having an opening 5281 to facilitate assembly. A spine cap 5283 may be attached to the interior 5281 over the opening 5281 after the various components are assembled. In the assembled form, the proximal end portion 5253 of the spine assembly 5250 is rotatably supported within the tool chassis 5210. In one configuration, for example, the proximal end of proximal end portion 5253 of spine assembly 5250 is attached to a spine bearing (not shown) configured to be supported within tool chassis 5210. Such a configuration facilitates rotatable attachment of spine assembly 5250 to tool chassis 5210 and allows spine assembly 5250 to selectively rotate relative to tool chassis 5210 about shaft axis SA ₃ . Specifically, in one configuration, for example, the proximal end portion 5253 of the spine assembly 5250 is each configured to receive a corresponding nozzle projection (not shown) extending inwardly from each of the nozzle portions 5242, 5244. It also includes two diametrically opposite protruding seats 5254 (only one visible in FIG. 20). Such a configuration facilitates rotation of the spine assembly 5250 about the shaft axis SA ₃ by rotating the actuator wheel portion 5246 of the nozzle assembly 5240.

Referring now to FIG. 21, the distal end 5280 of the spine assembly 5250 is attached to the distal frame portion 5286 operatively supporting the articulation lock 5400 therein. The spine assembly 5250 is configured to (1) slidably support the firing member assembly 6110 therein and (2) slidably support a proximal closure tube 5910 extending around the spine assembly 5250. Has been done. The spine assembly 5250 can also be configured to slidably support the first articulation driver 5310 and the second articulation driver 5320. As seen in FIG. 21, the distal frame segment 5286 is pivotally coupled to the proximal end 5610 of the elongated channel 5602. In one configuration, a pivot pin 5288 is formed at the distal end of the distal frame portion 5286, for example. Pivot pin 5288 is adapted to be pivotally received within a pivot hole 5611 formed in the proximal end portion 5610 of the elongated channel 5602. The pivot pin 5288 defines an articulation axis AA ₃ transverse to the shaft axis SA ₃ . See FIG. 21. Such a mechanism facilitates pivotal movement (ie, articulation) of surgical end effector 5500 about articulation axis AA ₃ relative to spine assembly 5250. Distal frame portion 5286 is further configured to internally support articulation lock 5400.

In the illustrated configuration, the distal end 5314 of the first articulation driver 5310 is adapted to receive a first articulation pin 5618 formed therein on the proximal end portion 5610 of the elongated channel 5602. Loop 5316 is formed. Similarly, the distal end 5324 of the second articulation driver 5320 has a loop 5326 adapted to receive a second articulation pin 5619 formed in the proximal end portion 5610 of the elongate channel 5602 therein. Have. In one configuration, for example, the first articulation driver 5310 further includes a proximal dentition rack 5315 that meshes with an idler gear 5330 rotatably supported within the spine assembly 5250. Similarly, the second articulation driver 5320 further includes a proximal dentition rack 5325 that meshes with the idler gear 5330. Therefore, in such a configuration, the movement of the first articulation driver 5310 in the distal direction DD causes the movement of the second articulation driver 5320 in the proximal direction PD. Movement of the first articulation driver 5310 in the proximal direction PD results in movement of the second articulation driver 5320 in the distal direction DD. Accordingly, such movements of the first articulation driver 5310 and the second articulation driver 5320 cause the surgical end effector 5500 to exert a pushing motion and a pulling motion at the same time, thereby causing the surgical end effector to move about the articulation axis AA ₃ . As a joint exercise.

Anvil 5810 in the illustrated example includes an anvil body 5812 terminating in anvil attachment portion 5820. Anvil mounting portion 5820 is movably supported on elongate channel 5602 for selective pivoting and vertical movement relative to elongate channel. In the configuration shown, the anvil trunnion 5822 extends laterally from each lateral side of the anvil attachment portion 5820 to a corresponding “open end” vertical formed in the upstanding wall 5612 of the proximal end portion 5610 of the elongated channel 5602. Received in cradle 5613. Movement of anvil 5810 relative to elongated channel 5602 is provided by axial movement of proximal closure assembly 5900 and distal closure assembly 6000. In the configuration shown, the proximal closure assembly 5900 includes a proximal closure tube 5910 having a proximal end 5912 and a distal end 5914. The proximal end 5912 is rotatably supported within a closed shuttle 5940 that is slidably supported within the tool chassis 5210 to allow axial movement relative to the tool chassis. In one form, the closure shuttle 5940 includes a pair of proximal projecting hooks 5942 configured to attach to transverse mounting pins 516 that attach to the closure coupling assembly 514 of the handle assembly 500. The proximal end 5912 of the proximal closure tube 5910 is coupled to the closure shuttle for relative rotation with respect to the closure shuttle 5940. For example, a U-shaped connector 5944 is inserted into the annular slot 5916 at the proximal end 5912 and retained within the vertical slot 5946 of the closure shuttle 5940. Such a configuration has the function of attaching the proximal closure assembly 5900 to the closure shuttle for axial movement with the closure shuttle 5940 while rotating the proximal closure tube 5910 relative to the closure shuttle 5940 about the shaft axis SA _3. It is possible to do. As described above in connection with the replaceable surgical tool assembly 1000, a closure spring (not shown) extends over the proximal end 5912 of the proximal closure tube 5910 to drive the closure shuttle 5940 in the proximal direction. Biasing the PD, which deactivates the closure trigger 512 (FIG. 2) of the handle assembly 500 when the replaceable surgical tool assembly 5000 is operably coupled with the handle assembly 500 as described above. It can perform the function of pivoting into position.

As seen in FIG. 21, the distal end 5914 of the proximal closure tube 5910 is attached to the distal closure assembly 6000. Distal end 5914 includes an upper protrusion 5917 and a lower protrusion 7918 configured to be movably coupled to an end effector closure sleeve or distal closure tube portion 6030. Distal closure tube portion 6030 includes an upper protrusion 6032 and a lower protrusion 6034 that project proximally from its proximal end. Upper double pivot link 6060 pivotally connects upper protrusion 5917 and upper protrusion 6032 and lower double pivot link 6064 connects lower protrusion 5918 and lower protrusion in the manner described above. And 6034 pivotally connected to each other. Distal closure tube portion 6030 includes an internal cam surface 6036 configured to cam engage anvil cam surface 5821 of anvil attachment portion 5820. Distal advancement of the distal closure tube portion 6030 over the anvil attachment portion 5820 causes closure or pivotal movement of the anvil 5810 toward the elongated channel 5602. In the configuration shown, an upright anvil tab 5827 is formed on the anvil attachment portion 5820 and is configured to contact two positively extending jaw opening tabs 6038 extending inward within the distal closure tube portion 6030. Each positive jaw opening tab 6038 engages a corresponding one of the anvil tabs 5827 to pivot the anvil 5810 to the open position when the distal closure tube portion 6030 is axially moved in the proximal direction PD. Is configured.

In the illustrated configuration, the replaceable surgical tool assembly 5000 further includes a firing system, generally indicated as 6100. In various examples, firing system 6100 includes a firing member assembly 6110 that is supported for axial movement within spine assembly 5250. In the illustrated embodiment, the firing member assembly 6110 includes an intermediate firing shaft portion 6120 configured to attach to the distal cutting portion or knife bar 6130. Firing member assembly 6110 may also be referred to herein as a "second shaft" and/or a "second shaft assembly." As can be seen in FIG. 21, the intermediate firing shaft portion 6120 can include a longitudinal slot 6124 at its distal end 6122 that can be configured to receive the proximal end 6132 of the knife bar 6130. The longitudinal slot 6124 and the proximal end 6132 of the knife bar 6130 can be sized and configured to allow relative movement therebetween, and the slip joint 6134 can be configured. As mentioned above, the slip joint 6134 can move the intermediate firing shaft portion 6120 of the firing member assembly 6110 to articulate the end effector 5500 without moving, or at least substantially moving, the knife bar 6130. To do. As mentioned above, in the illustrated configuration, the proximal end 6127 of the intermediate firing shaft portion 6120 is a distal end of a longitudinally movable drive member (not shown) of the firing drive system 530 within the handle assembly 500. A firing shaft mounting projection 6128 is formed that is configured to be placed in a mounting cradle (not shown) at the proximal end. Such a configuration facilitates axial movement of the intermediate firing shaft portion 6120 during activation of the firing drive system 530. Other mounting configurations for connecting the intermediate firing shaft portion to other firing drive mechanisms (eg, manual actuation, robots, etc.) may also be used.

In addition to the above, the replaceable surgical tool assembly 5000 can be configured to selectively and releasably couple the first articulation driver 5310 to the firing member assembly 6110 in a manner as described above. A shifter assembly 6200 can be included. In one form, the shifter assembly 6200 includes a locking collar, or locking sleeve 6210, disposed around the intermediate firing shaft portion 6120 of the firing member assembly 6110, the locking sleeve 6210 having a first articulation. The driver 5310 can be rotated between an engaged position that connects the firing member assembly 6110 and an engaged position that the first articulation driver 5310 is not operably connected to the firing member assembly 6110. As described above, drive notch 6126 is formed in intermediate firing shaft portion 6120 of firing member assembly 6110. Lock sleeve 6210 includes a cylindrical, or at least substantially cylindrical body including a longitudinal opening configured to receive intermediate firing shaft portion 6120 therethrough. As described in more detail above, the locking sleeve 6210 is received for engaging within a corresponding portion of the drive notch 6126 of the intermediate firing shaft portion 6120 when the locking sleeve 6210 is in one position. , Diametrically opposed inward when not in the drive notch 6126 when in another position, thereby allowing relative axial movement of the locking sleeve 6210 and intermediate firing shaft 6120. Lock protrusions 6214, 6216 may be included. Locking sleeve 6210 further includes a locking member 6218 sized to be movably received within notch 5319 at the proximal end of first articulation driver 5310. When the locking sleeve 6210 is in its engaged position, the locking projections 6214, 6216 are positioned within the drive notch 6126 of the intermediate firing shaft portion 6120 to provide a distal pushing force and/or a proximal pulling force. Can be transmitted from the firing member assembly 6110 to the locking sleeve 6210. Such axial pushing or pulling motion is then transmitted from the locking sleeve 6210 to the first articulation driver 5310. Axial movement of first articulation driver 5310 results in opposite axial movement of second articulation driver 5320, thereby articulating surgical end effector 5500.

As mentioned above, in the illustrated example, relative movement of the locking sleeve 6210 between its engaged and disengaged positions results in a shifter assembly interconnected with the proximal closure tube 5910 of the proximal closure assembly 5900. 6200. The shifter assembly 6200 further includes a shifter key 6240 configured to be slidably received in a keyway (similar to the keyway 2217 shown in FIG. 8) formed on the outer periphery of the lock sleeve 6210. .. With such a configuration, the shifter key 6240 can move in the axial direction with respect to the lock sleeve 6210. The operation of shifter assembly 6200 may be the same as the operation of shifter assembly 2200, which has been described in further detail above and will not be repeated again for the sake of brevity. Further details that can be used, alternative configurations and drive configurations are described in US patent application Ser. No. 13/803,086 (current U.S. Patent Application Publication No. 2014/0263541) and U.S. Patent Application No. 15/019,196, as well as other disclosures incorporated herein by reference.

As mentioned above, the replaceable tool assembly 5000 may, for example, transfer power to and/or from the surgical end effector 5500 and/or to the surgical end effector 5500 and/or the surgical end effector 5500. A slip ring assembly 5230 may be included that may be configured to communicate signals from the end effector back to the microprocessor assembly 560 within the handle assembly 500 or robot system controller. Further details regarding the slip ring assembly 5230 and associated connectors can be found in US patent application Ser. No. 13/803,086, now US Pat. App. Pub. No. 2014/0263541, the entire contents of each of which is incorporated herein by reference. ), and U.S. Patent Application No. 15/019,196, and U.S. Patent Application No. 13/800,067, the entire contents of which are incorporated herein by reference, entitled "STAPLE CARTRIDGE TISSUE THICKNESS SENSOR SYSTEM". (Currently U.S. Patent Application Publication No. 2014/0263552).

The illustrated replaceable surgical tool assembly 5000 also uses a latch system 5220 to removably couple the replaceable surgical tool assembly 5000 to, for example, the handle frame 506 of the handle assembly 500. Latch system 5220 may be the same as latch system 1220 described in detail above. The knife bar 6130 can include a laminated beam structure that includes at least two beam layers. Such beam layers may include, for example, stainless steel bands, which are welded or pinned together, eg, at their proximal ends and/or elsewhere along their length. Are interconnected by. In an alternative embodiment, the distal ends of the bands are not connected to each other to allow the stacks or bands to expand relative to each other when the end effector is articulating. Such a configuration allows knife bar 6130 to be sufficiently flexible to accommodate articulation of the end effector. Various laminated knife bar configurations are disclosed in US Patent Application No. 15/019,245, entitled "SURGICAL INSTRUMENTS WITH CLOSURE STROKURE REDUCTION ARRANGENEMENTS", the entire contents of which are incorporated herein by reference. .. As can also be seen in FIG. 21, firing shaft pointing assembly 6300 provides lateral support to knife bar 6130 as the central support member flexes to accommodate articulation of surgical end effector 5500. Used. Further details regarding the operation of the firing shaft support assembly 6300 and alternative knife bar support mechanisms may be found in US patent application Ser. INSTRUMENTS WITH CLOSE STROKE REDUCTION ARRANGEMENTS", and US patent application Ser.

As also seen in FIGS. 21 and 50, a firing member or knife member 6140 is attached to the distal end of knife bar 6130. The firing member 6140 is configured to operably interconnect with a sled assembly 6150 operably supported within the body 5702 of the surgical staple/fastening element cartridge 5700. The sled assembly 6150 is slidable within the surgical staple/fastening element cartridge body 5702 from a proximal start position adjacent the proximal end 5704 of the cartridge body 5702 to an end position adjacent the distal end 5706 of the cartridge body 5702. Can be displaced. The cartridge body 5702 operably supports therein a plurality of staple drivers (not shown) aligned with the rows on both sides of the centrally located slot 5708. The centrally located slot 5708 allows the firing member 6140 to cut through the slot to clamp the tissue clamped between the anvil 5810 and the staple cartridge 5700. The driver is accompanied by a corresponding staple pocket opened on the upper deck surface of the cartridge body 5702. Each of the staple drivers carries one or more surgical staple/fastening elements or fastening elements (not shown). The sled assembly includes a plurality of angled or wedge-shaped cams 6152, each cam corresponding to a particular line of fastening elements or drivers located on the sides of the slot 5708.

In one exemplary form, firing member 6140 includes a body portion 6142 that supports a knife or tissue cutting portion 6144. See FIG. 50. Body portion 6142 projects through elongated slot 5604 of elongated channel 5602 and terminates in laterally extending foot members 6146 on each side of body portion 6142. As the firing member 6140 is driven distally through the surgical staple/fastening element cartridge 5700, the foot member 6146 is located within the passageway 5622 of the elongated channel 5602 underlying the surgical staple/fastening element cartridge 5700. .. The tissue cutting portion 6144 is disposed between the distally projecting upper nose portions 6143. As can be seen further in FIGS. 21 and 50, the firing member 6140 can further include two laterally extending top tabs, pins, or anvil engagement features 6147. When firing member 6140 is driven distally, the upper portion of body portion 6142 extends through centrally located anvil slot 5814 and anvil engagement features 6147 correspond to the anvil slots 5814 formed on opposite sides thereof. It is located on the shelf 5816. Further details regarding firing members 6140, sled assemblies 6150, and various alternatives thereof, and examples of their operation are described in further detail below and also in US patent application Ser. No. 15/385,911, It can also be found in the title of the invention "SURGICAL STAPLE/FASTENERS WITH INDEPENDENTLY ACTUATABLE CLOSING AND FIRING SYSTEMS". The replaceable surgical tool assembly 5000 can be operably coupled to the handle assembly 500 in the same manner as described above for the replaceable surgical tool assembly 1000.

Referring again to FIG. 1, as mentioned above, the surgical system 10 shown in this figure includes four replaceable surgical tool assemblies 1000, 3000, 5000 and 7000, each of which is different. It can be effectively used with the same handle assembly 500 to perform a surgical procedure. 22-24, replaceable surgical instrument assembly 7000 includes a surgical end effector 7500 that includes a first jaw 7600 and a second jaw 7800. In one configuration, the first jaw includes an elongated channel 7602 configured to operably support a surgical staple/fastening element cartridge 7700 therein. The second jaw 7800 includes an anvil 7810 movably supported with respect to the elongated channel 7602. The replaceable surgical instrument assembly 7000 includes an articulation system 7300 that includes an articulation joint 7302 and an articulation lock 7400 that can be configured to releasably retain the surgical end effector 7500 at a desired articulation position relative to the shaft axis SA ₄ . Can be further included. Details regarding construction and operation of articulation lock 7400, as well as alternative locking mechanism and operation details, are provided in US patent application Ser. No. 13/803,086, the disclosure of which is incorporated herein by reference in its entirety. The title of the invention, "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING AN ARTICULATION LOCK", can now be found in U.S. Patent Application Publication No. 2014/0263541. Further details regarding articulation lock 7400 and/or alternative articulation lock mechanisms may be found in US patent application Ser. No. 15/019,196, 20162, the disclosure of which is incorporated herein by reference in its entirety. It can be seen in the title of the invention filed on 9th March, “SURGICAL INSTRUMENT ARTICULATION MECHANISM WITH SLOTTED SECONDARY CONSTRAINT”.

As seen in FIG. 24, the replaceable surgical tool assembly 7000 includes a tool frame assembly 7200 that includes a tool chassis 7210 that operably supports a nozzle assembly 7240. In one form, the nozzle assembly 7240 comprises a nozzle portion 7242, 7244 and an actuator wheel portion 7246 configured to be coupled to the assembled nozzle portion 7242, 7244 by snaps, protrusions, screws and the like. .. The replaceable surgical tool assembly 7000 includes a proximal closure assembly 7900 operably coupled to a distal closure assembly 8000 used to open and close anvil 7810 of surgical end effector 7500, as described in further detail below. Is included. Additionally, replaceable surgical tool assembly 7000 operatively supports proximal closure assembly 7900 and includes spine assembly 7250 coupled to surgical end effector 3500. In the configuration shown, the spine assembly 7250 has a distal end portion 7280 having an opening 7281 therein for ease of assembly. The spine cap 7283 may also be attached to the opening 7281 over the various components of the interior after it has been assembled. In the assembled form, the proximal end portion 7253 of the spine assembly 7250 is rotatably supported within the tool chassis 7210. In one configuration, for example, the proximal end of proximal end portion 7253 of spine assembly 7250 is attached to a spine bearing (not shown) configured to be supported within tool chassis 7210. Such a configuration facilitates rotatable attachment of the spine assembly 7250 to the tool chassis 7210 and allows the spine assembly 7250 to selectively rotate with respect to the tool chassis 7210 about the shaft axis SA ₄ . Specifically, in one configuration, for example, the proximal end portion 7253 of the spine assembly 7250 is each configured to receive a corresponding nozzle protrusion (not shown) extending inwardly from each of the nozzle portions 7242, 7244. It also includes two diametrically opposite protruding seats 7254 (only one visible in FIG. 23). Such a configuration facilitates rotation of the spine assembly 7250 about the shaft axis SA ₄ by rotating the actuator wheel portion 7246 of the nozzle assembly 7240.

Referring now to FIG. 24, the distal end 7280 of the spine assembly 7250 is attached to the distal frame portion 7286 operatively supporting the articulation lock 7400 therein. The spine assembly 7250 is configured to (1) slidably support the firing member assembly 8110 therein and (2) slidably support a proximal closure tube 7910 extending around the spine assembly 7250. Has been done. The spine assembly 7250 can also be configured to slidably support the proximal articulation driver 7310. As seen in FIG. 24, the distal frame segment 7286 is pivotally coupled to the elongated channel 7602 by an end effector attachment assembly 7290. In one configuration, a pivot pin 7288 is formed at the distal end of the distal frame portion 7286, for example. Pivot pin 7288 is adapted to be pivotally received within a pivot hole 7292 formed in a pivot base 7291 of end effector attachment assembly 7290. The end effector attachment assembly 7290 is attached to the proximal end portion 7610 of the elongated channel 7602 by a spring pin 7620 or other suitable member received in the attachment hole 7611 of the proximal end portion 7610. The pivot pin 7288 defines an articulation axis AA ₄ transverse to the shaft axis SA ₄ . See FIG. 24. Such a mechanism facilitates pivotal movement (ie, articulation) of surgical end effector 7500 about articulation axis AA ₄ relative to spine assembly 7250. Distal frame portion 7286 is further configured to internally support articulation lock 7400. Various articulation lock configurations can be used. At least one form of articulation lock 7400, U.S. patent application Ser. No. 13/803,086, the title of which is incorporated herein by reference in its entirety, entitled "ARTICULATABLE SURGICAL INSTRUMENT COMPANING AN ARTICULATION LOCK". , US Patent Application Publication No. 2014/0263541, in more detail. Further details regarding articulation locks can also be found in US patent application Ser. No. 15/019,196 (filed February 9, 2016), entitled "SURGICAL INSTRUMENT ARTICULATION MECHANISM WITH SLOTED SECONDARY CONSTRAINT".

In the illustrated example, surgical end effector 7500 can be selectively articulated about articulation axis AA ₄ by articulation system 7300. In one form, articulation system 7300 includes a proximal articulation driver 7310 that is operatively interconnected with articulation lock 7400. Articulation lock 7400 includes an articulation frame 7402 adapted to operably engage a drive pin 7293 on a pivot base 7291 of end effector mounting assembly 7290. Further, the cross link 7294 can be coupled to the drive pin 7293 and the articulation frame 7402 to assist articulation of the surgical end effector 7500. As mentioned above, further details regarding the operation of articulation lock 7400 and articulation frame 7402 can be found in US patent application Ser. No. 13/803,086 (now US patent application publication No. 2014/0263541). .. Further details regarding the end effector mounting assembly and cross link 7294 can be found in US patent application Ser. No. 15/019,245, filed Feb. 9, 2016, the disclosure of which is incorporated herein by reference in its entirety. It can be found in the title of the invention "SURGICAL INSTRUMENTS WITH CLOSE STROKE REDUCTION ARRANGEMENTS". As described further herein, and in other disclosures incorporated herein by reference, axial movement of a proximal articulation driver 7310 causes articulation lock 7400 to engage/disengage, Causes articulation to be applied to elongated channel 7602, which causes surgical end effector 7500 to articulate with respect to spine assembly 7250 about articulation axis AA ₄ .

Anvil 7810 in the illustrated example includes an anvil body 7812 terminating in anvil attachment portion 7820. Anvil mounting portion 7820 is movably supported on elongate channel 7602 for selective pivotal and axial movement relative to elongate channel. In the configuration shown, the anvil trunnion 7822 extends laterally from each lateral side of the anvil attachment portion 7820 and a corresponding “kidney-shaped” opening formed in the upstanding wall 7612 of the proximal end portion 7610 of the elongated channel 7602. Received within portion 7613. Movement of anvil 7810 with respect to elongated channel 7602 is effected by axial movement of proximal closure assembly 7900 and distal closure assembly 8000. In the configuration shown, the proximal closure assembly 7900 includes a proximal closure tube 7910 having a proximal end 7912 and a distal end 7914. The proximal end 7912 is rotatably supported within a closed shuttle 7940 that is slidably supported within the tool chassis 7210 to allow axial movement relative to the tool chassis. In one form, the closure shuttle 7940 includes a pair of proximal projecting hooks 7942 configured to attach to transverse mounting pins 516 that attach to the closure coupling assembly 514 of the handle assembly 500. The proximal end 7912 of the proximal closure tube 7910 is coupled to the closure shuttle for relative rotation with respect to the closure shuttle 7940. For example, a U-shaped connector 7944 is inserted into the annular slot 7916 at the proximal end 7912 of the proximal closure tube 7910 and retained within the vertical slot 7946 of the closure shuttle 7940. Such a configuration has the function of attaching the proximal closure assembly 7900 to the closure shuttle for axial movement with the closure shuttle 7940, while the proximal closure tube 7910 is centered on the shaft axis SA ₄ relative to the closure shuttle 7940. It is possible to rotate. As described above in connection with the replaceable surgical tool assembly 1000, a closure spring (not shown) extends over the proximal end 7912 of the proximal closure tube 7910 to move the closure shuttle 7940 in the proximal direction. Biasing the PD, which causes the closure trigger 512 (FIG. 2) of the handle assembly 500 to be operatively coupled to the replaceable surgical tool assembly 7000 in the manner described above. It can serve the function of pivoting to an inoperative position.

As seen in FIG. 24, the distal end 7914 of the proximal closure tube 3910 is attached to the distal closure assembly 8000. Distal end 7914 includes an upper protrusion 7917 and a lower protrusion 7918 configured to be movably coupled to an end effector closure sleeve or distal closure tube section 8030. Distal closure tube portion 8030 includes an upper protrusion 8032 and a lower protrusion 8034 that project proximally from its proximal end. In the manner described above, the upper double pivot link 8060 pivotally connects the upper protrusion 7917 and the upper protrusion 8032, and the lower double pivot link 8064 connects the lower protrusion 7918 and the lower protrusion 8034. Are pivotally connected together. Distal advancement of the distal closure tube portion 8030 over the anvil attachment portion 7820 causes closure or pivotal movement of the anvil 7810 toward the elongated channel 7602. In the configuration shown, an upright anvil tab 7824 is formed on the anvil attachment portion 7820 and extends into the horseshoe opening 8038. Opening 8038 defines an open tab 8039 configured to operably interconnect with anvil tab 7824 as the distal closure tube is retracted distally. Such interaction between the opening tab 8039 and the anvil tab 7824 exerts an opening movement on the anvil 7810, thereby moving the anvil 7810 to the open position.

In the configuration shown, the replaceable surgical tool assembly 7000 further includes a firing system, generally indicated as 8100. In various examples, firing system 8100 includes firing member assembly 8110 supported for axial movement within spine assembly 7250. In the illustrated embodiment, the firing member assembly 8110 includes an intermediate firing shaft portion 8120 configured to be attached to the distal cutting portion or knife bar 8130. Firing member assembly 8110 may also be referred to herein as a "second shaft" and/or a "second shaft assembly." As can be seen in FIG. 24, the intermediate firing shaft portion 8120 can include a longitudinal slot 8124 at its distal end 8122 that can be configured to receive the proximal end 8132 of the knife bar 8130. The longitudinal slot 8124 and the proximal end 8132 of the knife bar 8130 can be sized and configured to allow relative movement therebetween, and the slip joint 8134 can be configured. As mentioned above, the slip joint 8134 allows the intermediate firing shaft portion 8120 of the firing member assembly 8110 to move to articulate the end effector 7500 without moving, or at least substantially moving, the knife bar 8130. To do. As mentioned above, in the illustrated configuration, the proximal end 8127 of the intermediate firing shaft portion 8120 is a distal end of a longitudinally movable drive member (not shown) of the firing drive system 530 within the handle assembly 500. A firing shaft mounting projection 8128 is formed that is configured to be placed in a mounting cradle (not shown) at the distal end. Such a configuration facilitates axial movement of the intermediate firing shaft portion 8120 during activation of the firing drive system 530. Other mounting configurations for connecting the intermediate firing shaft portion to other firing drive mechanisms (eg, manual actuation, robots, etc.) may also be used.

In addition to the above, the replaceable surgical tool assembly 7000 can be configured to selectively and releasably couple the proximal articulation driver 7310 to the firing member assembly 8110 in a manner as described above. An assembly 8200 can be included. In one form, the shifter assembly 8200 includes a locking collar, or locking sleeve 8210, disposed around the intermediate firing shaft portion 8120 of the firing member assembly 8110, the locking sleeve 8210 being the proximal articulation driver. The 7310 can be rotated between an engaged position that connects the firing member assembly 8110 and an unlocked position in which the proximal articulation driver 7310 is not operably coupled to the firing member assembly 8110. As mentioned above, the drive notch 8126 is formed in the intermediate firing shaft portion 8120 of the firing member assembly 8110. Lock sleeve 8210 includes a cylindrical, or at least substantially cylindrical body including a longitudinal opening configured to receive intermediate firing shaft portion 8120 therethrough. As described in further detail above, the locking sleeve 8210 is received for engaging within a corresponding portion of the drive notch 8126 of the intermediate firing shaft portion 8120 when the locking sleeve 8210 is in one position. , Diametrically opposed interiors that are not received within drive notches 8126 when in another position, thereby allowing relative axial movement between locking sleeve 8210 and intermediate firing shaft 8120. Orientation locking protrusions 8214, 8216 can be included. Locking sleeve 8210 further includes a locking member 8218 sized to be movably received within notch 7319 at the proximal end of proximal articulation driver 7310. When the locking sleeve 8210 is in its engaged position, the locking projections 8214, 8216 are positioned within the drive notches 7126 of the intermediate firing shaft portion 8120 to provide a distal pushing force and/or a proximal pulling force. Can be transmitted from the firing member assembly 8110 to the locking sleeve 8210. Such axial pushing or pulling motion is then transmitted from the locking sleeve 8210 to the proximal articulation driver 7310, thereby articulating the surgical end effector 7500.

As mentioned above, in the illustrated example, relative movement of the locking sleeve 8210 between its engaged and disengaged positions results in a shifter assembly interconnected with the proximal closure tube 7910 of the proximal closure assembly 7900. 8200. The shifter assembly 8200 further includes a shifter key 8240 configured to be slidably received within a keyway (similar to the keyway 2217 shown in FIG. 8) formed on the outer periphery of the lock sleeve 8210. There is. With such a configuration, the shifter key 8240 can move in the axial direction with respect to the lock sleeve 8210. The operation of shifter assembly 8200 may be the same as the operation of shifter assembly 2200, but this is described in more detail above and will not be repeated again for the sake of brevity. Further details, alternative arrangements and drive arrangements that can be used are described in US patent application Ser. No. 13/803,086 (current U.S. Patent Application Publication No. 2014/0263541) and U.S. Patent Application No. 15/019,196, as well as other disclosures incorporated herein by reference.

As mentioned above, the replaceable tool assembly 7000 may, for example, convey power to and/or from the surgical end effector 7500 and/or to the surgical end effector 7500 and/or the surgical end effector 7500. A slip ring assembly 7230 may be included that may be configured to communicate signals from the end effector back to the handle assembly 500 or the microprocessor 560 in the robot system controller. Further details regarding the slip ring assembly 7230 and associated connectors may be found in US patent application Ser. No. 13/803,086, now US Pat. App. Pub. ), and U.S. patent application Ser. No. 15/019,196, and U.S. patent application Ser. (Currently U.S. Patent Application Publication No. 2014/0263552).

The illustrated replaceable surgical tool assembly 7000 also uses a latch system 7220 to removably couple the replaceable surgical tool assembly 7000 to, for example, the handle frame 506 of the handle assembly 500. Latch system 7220 may be the same as latch system 1220 described in detail above. The knife bar 8130 can include a laminated beam structure that includes at least two beam layers. Such beam layers may include, for example, stainless steel bands, which are welded or pinned together, eg, at their proximal ends and/or elsewhere along their length. Are interconnected by. In an alternative embodiment, the distal ends of the bands are not connected to each other to allow the stacks or bands to expand relative to each other when the end effector is articulating. Such a configuration allows knife bar 8130 to be sufficiently flexible to accommodate the articulation of the end effector. Various laminated knife bar configurations are disclosed in US Patent Application No. 15/019,245, entitled "SURGICAL INSTRUMENTS WITH CLOSURE STROKURE REDUCTION ARRANGENEMENTS", the entire contents of which are incorporated herein by reference. .. As can also be seen in FIG. 24, the firing shaft support assembly 8300 provides lateral support to the knife bar 8130 as the firing shaft support assembly flexes to conform to the articulation of the surgical end effector 7500. Used for. Further details regarding the operation of the firing shaft support assembly 8300 and the alternative knife bar support mechanism may be found in US patent application Ser. INSTRUMENTS WITH CLOSE STROKE REDUCTION ARRANGEMENTS", and US patent application Ser.

As also seen in FIG. 24, a firing member or knife member 8140 is attached to the distal end of knife bar 8130. The firing member 8140 is configured to operably interconnect with a sled assembly 8150 that is operably supported within the body 7702 of the surgical staple/fastening element cartridge 7700. See FIG. 51. The sled assembly 8150 is slidable within the surgical staple/fastening element cartridge body 7702 from a proximal start position adjacent the proximal end 7704 of the cartridge body 7702 to an end position adjacent the distal end 7706 of the cartridge body 7702. Can be displaced. The cartridge body 7702 operably supports therein a plurality of staple drivers (not shown) that are aligned with the rows on either side of the centrally located slot 7708. A centrally located slot 7708 allows firing member 8140 to pass through the slot to cut tissue clamped between anvil 7810 and staple cartridge 7700. The driver is accompanied by a corresponding staple pocket opened on the upper deck surface of the cartridge body 7702. Each of the staple drivers carries one or more surgical staple/fastening elements or fastening elements (not shown). The sled assembly includes a plurality of angled or wedge-shaped cams, each cam corresponding to a particular line of fastening elements or drivers located on the sides of the slot 7708.

In one exemplary form, firing member 8140 includes a body portion 8142 that supports a knife or tissue cutting portion 8144. See FIG. 51. Body portion 8142 projects through elongated slot 7604 of elongated channel 7602 and terminates in laterally extending foot members 8146 on each side of body portion 8142. As firing member 8140 is driven distally through surgical staple/fastening element cartridge 7700, foot member 8146 is located within passageway 7622 of elongate channel 7602 underlying staple cartridge 7700. The tissue cutting portion 8144 is disposed between the distally projecting upper nose portion 8143. As can be seen further in FIG. 24, the firing member 8140 can further include two laterally extending top tabs, pins, or anvil engagement features 8147. When firing member 8140 is driven distally, the upper portion of body portion 8142 extends through centrally located anvil slot 7814 and anvil engagement features 8147 are formed on opposite sides of anvil slot 7814. Get on the shelf 7816. Further details regarding firing members 8140, sled assemblies 8150, and their various alternatives, and examples of their operation are discussed in further detail below and also in US patent application Ser. No. 15/385,911, It can also be found in the title of the invention "SURGICAL STAPLE/FASTENERS WITH INDEPENDENTLY ACTUATABLE CLOSING AND FIRING SYSTEMS". The replaceable surgical tool assembly 7000 can be operably coupled to the handle assembly 500 in the same manner as described above for the replaceable surgical tool assembly 1000.

As can be appreciated from the above description, the replaceable surgical tool assemblies described herein can be actuated by the same handle assembly, robotic system, or other automated actuation system. All of the replaceable surgical tool assemblies described above include surgical cutting and fastening instruments having somewhat similar closure and firing elements. However, although the closure and firing systems and elements of each of these tool assemblies have differences that may seem somewhat trivial at first glance, such differences, as discussed further below, are such differences. It can result in significant improvements in material composition, design, construction, manufacture, and use of tools. As will be apparent upon reading the “Modes for Carrying Out the Invention” herein, the replaceable surgical tool assembly 1000 includes other replaceable surgical tool assemblies 3000, described herein. It has subtle design differences that can result in significant improvements in overall functionality, reliability, and cost of the tool assembly when compared to the 5000 and 7000. Further, in some cases, we find that there is a synergistic effect between the particular element configurations used in the tool assembly 1000 that can further improve the overall efficiency and functionality of the tool assembly 1000. Found. To better understand these differences and improvements, the particular elements and systems of each of the tool assemblies 1000, 3000, 5000, 7000 are further described and compared below to one another.

For example, each of the replaceable surgical tool assemblies 1000, 3000, 5000, 7000 allows the jaws to sufficiently target the target tissue so that the firing member can properly treat the clamped tissue during actuation of the firing drive system. It must be possible to apply a sufficient closing force to clamp. For example, in the illustrated assembly, each closure system element includes an anvil and a firing member to properly cut the clamped tissue and eject a line of staples or fastening elements on either side of the tissue cutting line. It must be possible to clamp the surgical staple/fastening element cartridge onto the target tissue. Large closing and firing forces are often required, depending on the thickness and composition of the target tissue. Accordingly, the closure drive system and firing drive system, such as the handle assembly housing, robot housing, etc., may close the jaws sufficiently to provide such force of sufficient magnitude to project the firing member through the clamped tissue. , By the use of a motor or by a manually generated movement). Such a procedure further requires that the elements in the replaceable shaft assembly be sufficiently strong to accommodate the amount of force transmitted through the elements. Heretofore, due to the magnitude of such forces, the elements of the closure system as well as the elements of the firing system are formed of metal or other suitable material having a relatively large cross-section thickness and a significantly reinforced configuration. It was often decided to be done.

The tissue load exerted during the clamping process typically creates a large "moment" about the pivot axis PA of the anvil. The elements of the closure system should be designed to counteract these moments. In various situations, for example, opposite moments about the anvil pivot axis PA are required. To maximize the efficiency of the system (eg, to minimize the amount of force applied), the maximum actual moment arm is desirable. However, as discussed further below, attempting to establish a large inverse moment results in tradeoffs with other design variables. For example, in a closure system in which the firing system and the closure system are separate and separate, there is a constant balance between the distance from the articulating joint to the first staple and the length of the moment arm of the closure system. is there. The larger the moment arm of the closure system, the more efficiently the closure system handles clamp loading and tissue compression. However, the distance between the articulating joint and the initial staple can significantly affect surgical end effector access when the surgical end effector is placed within a narrow space within the laparoscopic environment.

25-32 illustrate exemplary moment arms of surgical end effectors 1500, 3500, 5500, 7500, respectively. Referring initially to FIG. 25, an anvil trunnion 1822 extends laterally from each side of the anvil attachment portion 1820 and is formed in the upstanding wall 1612 of the proximal end 1610 of the elongated channel 1602, as described above. Received in a corresponding trunnion cradle 1614. Anvil trunnions 1822 are pivotally retained within their corresponding trunnion cradle 1614 by channel caps or anvil retainers 1630. Channel cap 1630 is a pair of mounting projections 1636 configured to be received and retained within corresponding projection grooves or notches 1616 formed in upstanding wall 1612 of proximal end portion 1610 of elongated channel 1602. Is included. With such a configuration, the anvil 1810 is restrained so as to rotate only about the pivot axis PA ₁ (see FIG. 3). In such a configuration, the anvil mounting portion 1820 does not move axially or vertically. When the distal closure tube portion 2030 is subjected to a horizontal closure force F _H1 (FIG. 26) and advanced in the distal direction DD, between the inner cam surface 2036 of the distal closure tube portion 2030 and the anvil cam surface 1821 of the anvil attachment portion 1820. Due to the interaction of the closing force F _C1 on the anvil cam surface 1821. The closing force F _C1 consists of the force resulting from the horizontal closing force F _H1 and the vertical closing force F _V1 and is essentially “orthogonal”, ie perpendicular, to the cam surface 1821 of the anvil mounting portion 1820. See FIG. 26. M _A1 is the anvil mounting when the anvil pivot axis PA ₁ (which coincides with the center of the anvil trunnion 1822) is pivoted to the inner cam surface 2036 of the distal closure tube portion 2030 and the anvil 1810. FIG. 9 illustrates a closing moment arm up to the point of contact of portion 1820 with anvil cam surface 1821. In one example, the closure moment arm M _A1 can be, for example, about 0.415 inches. M _A1 ×F _C1 =closing moment C _M1 applied to the anvil mounting portion 1820.

The proximal end portion 1818 of the anvil body 1812 includes each side of the anvil body 1812 to ensure that each side of the tissue cut line is fastened by staples or fastening elements extending from the proximal end to the distal end of the tissue cut line. Two tissue lock formations or tissue locating elements 1830 are formed extending downwardly therefrom (only one tissue lock formation 1830 can be seen in FIGS. 25 and 26). When the anvil 1810 is opened to receive the target tissue between the lower surface of the anvil and the deck surface of the cartridge, the downwardly extending tissue lock 1830 is provided so that the target tissue is the most recent tissue within the surgical staple/fastening element cartridge 1700. Position to prevent proximal extension beyond the staple/fastening element. If the tissue extends proximally beyond the most proximal staple/fastening element, that portion of the tissue may be cut or unfastened by the firing member during the firing process, leading to serious consequences. It can happen. The tissue locking portion 1830 extending downward can prevent the occurrence thereof. In the embodiment shown in FIG. 26, for example, the most proximal staple/fastening element pocket 1720 is shown in phantom relative to the tissue lock 1830. As can be seen from this figure, the tissue locking portion 1830 has a downwardly extending portion 1832 and a chamfered portion 1834. Contact of the target tissue with the portions 1832, 1834 causes the target tissue to be proximal beyond the most proximal staple/fastening element supported in the most proximal staple/fastening element pocket 1720 of the staple/fastening element cartridge body 1702. To prevent it from extending in the direction.

Returning again to FIG. 25, when the anvil 1810 is pivoted and closed over the target tissue (not shown) located between the lower surface of the anvil body 1812 or the tissue contacting surface 1813, the tissue forces T _F1. To the lower surface 1813 of the anvil body 1812, which acts on the anvil 1810 with an inverse tissue moment C _T1 , which must be overcome by the closing moment C _M1 established by the elements of the closure system. The example shown in FIG. 25 shows a tissue force T _F1 evenly distributed on the anvil 1810 and a tissue moment arm M _T1 established by the clamped tissue (tissue clamped in FIG. 25 for clarity). Is not shown). As can be seen from this figure, in this example the tissue moment arm M _T1 is significantly longer than the closure moment arm M _A1 (ie, M _T1 >M _A1 ).

27 and 28, as described above, the anvil trunnion 3822 of the anvil 3810 of the replaceable surgical tool assembly 3000 extends laterally from each side of the anvil attachment portion 3820 to form an elongated channel. Received within a corresponding trunnion hole 3613 formed in the upstanding wall 3612 of the proximal end portion 3610 of 3602. With this configuration, the anvil 3810 is restrained so as to rotate only about the pivot axis PA ₂ (see FIG. 18). In such a configuration, the anvil attachment portion 3820 does not move axially or vertically. When the distal closure tube section 4030 is subjected to a horizontal closure force F _H2 (FIG. 28) and advanced in the distal direction DD, between the inner cam surface 4036 of the distal closure tube section 4030 and the anvil cam surface 3821 of the anvil attachment section 3820. Due to the interaction of the above, a closing force F _C2 is applied to the anvil cam surface 3821. The closing force F _C2 consists of the force resulting from the horizontal closing force F _H2 and the vertical closing force F _V2 and is essentially “orthogonal”, ie perpendicular, to the anvil cam surface 3821 of the anvil mounting portion 3820. See FIG. 28. M _A2 is the anvil cam of the anvil mounting portion 3820 when the inner cam surface 4036 of the distal closure tube 4030 and the anvil 3810 are pivoted from the anvil pivot axis PA ₂ (center of the anvil trunnion 3822) to the fully closed position. FIG. 6 illustrates a closing moment arm up to the point of contact with face 3821. In one example, the closure moment arm M _A2 can be, for example, about 0.539 inches. M _A2 ×F _C2 =closing moment C _M2 applied to the anvil attachment portion 3820.

In the embodiment shown in FIGS. 27 and 28, the anvil body 3812 is formed with two tissue lock formations or tissue locating elements 3830 that extend downwardly from each side of the anvil body 3812 (FIGS. 27 and 28). Only one tissue lock formation 3830 can be seen in FIG. 28). When the anvil 3810 is opened to receive the target tissue between the lower surface of the anvil and the deck surface of the cartridge, the tissue locking formations 3830 that extend downwardly provide the target tissue with a surgical staple/fastening element/fastening element cartridge. It functions to prevent proximal extension beyond the most proximal stapling/fastening element within 3700. In the embodiment shown in FIG. 28, for example, the most proximal staple pocket 3720 is shown in phantom with respect to tissue lock formation 3830. As can be seen from this figure, the tissue locking formation 3830 has a downwardly extending portion 3832 and a chamfered portion 3834. Contact of the target tissue with the portions 3832, 3834 causes the target tissue to be proximal beyond the proximal staple/fastening element supported within the proximal staple/fastening element pocket 3720 of the staple/fastening element cartridge body 3702. To prevent it from extending in the direction.

Returning again to FIG. 27, when the anvil 3810 is pivoted and closed over the target tissue (not shown) located between the lower surface of the anvil body 3812 or the tissue contacting surface 3813, the tissue forces the tissue force T _F2. To the lower surface 3813 of the anvil body 3812, which acts on the anvil 3810 with an inverse tissue moment C _T2 , which must be overcome by the closing moment C _M2 established by each element of the closure system. The example shown in FIG. 27 shows a tissue force T _F2 evenly distributed on the anvil 3810 and a tissue moment arm M _T2 established by the clamped tissue (tissue clamped in FIG. 27 for clarity). Is not shown). As can be seen from this figure, in this example, the tissue moment arm M _T2 is significantly longer than the closure moment arm M _A2 (ie, M _T2 >M _A2 ).

29 and 30, the anvil trunnion 5822 of the anvil 5810 of the replaceable surgical tool assembly 5000 extends laterally from each side of the anvil attachment portion 5820 to provide an elongated channel, as described above. Received in a corresponding "open end" vertical cradle 5613 formed in the upstanding wall 5612 of the proximal end portion 5610 of the 5602. In this configuration, anvil trunnions 5822 are free to pivot within their corresponding cradle 5613 as the distal closure tube portion 6030 makes cam contact with the anvil cam surface 5821 of the anvil attachment portion 5820. In such a configuration, the anvil 5810 does not move axially, but the anvil trunnions 5822 are free to move vertically (arrow V) within their corresponding cradle 5613. When the distal closure tube portion 6030 is subjected to a horizontal closing force F _H3 (FIG. 30) and advanced in the distal direction DD, between the inner cam surface 6036 of the distal closure tube portion 6030 and the anvil cam surface 5821 of the anvil attachment portion 5820. Due to the interaction of the closing force F _C3 on the anvil cam surface 5821. The closing force F _C3 consists of the force resulting from the horizontal closing force F _H3 and the vertical closing force F _V3 and is essentially “orthogonal”, ie perpendicular, to the anvil cam surface 5821 of the anvil mounting portion 5820. See FIG. 30. M _A3 is an anvil attachment portion 5820 when the inner cam surface 6036 of the distal closure tube 6030 and the anvil 5810 are pivoted from the anvil pivot axis PA ₃ (which coincides with the center of the anvil trunnion 5822) to the closed position. 7 illustrates a closing moment arm up to the point of contact with the anvil cam surface 5821. In one example, the closure moment arm M _A3 can be, for example, about 0.502 inches. M _A3 ×F _C3 =closing moment C _M3 applied to the anvil attachment portion 5820

In the embodiment shown in FIGS. 29 and 30, the anvil body 5812 is formed with two tissue locking formations or tissue locating elements 5830 that extend downwardly from each side of the anvil body 5812 (FIGS. 29 and 29). Only one tissue lock formation 5830 can be seen in FIG. 30). When the anvil 5810 is opened to receive the target tissue between the lower surface of the anvil and the surface of the cartridge deck, the downwardly extending tissue lock formations 5830 allow the target tissue to be placed within the surgical staple/fastening element cartridge 5700. Function to prevent proximal extension beyond the proximal staple/fastening element. In the embodiment shown in FIG. 29, for example, the most proximal staple/fastening element pocket 5720 is shown in phantom relative to the tissue lock formation 5830. As can be seen from this figure, the tissue locking formation 5830 has a downwardly extending portion 5832 and a chamfered portion 5834. Contact of the target tissue with the portions 5832, 5834 causes the target tissue to be proximal beyond the most proximal staple/fastening element supported in the most proximal staple/fastening element pocket 5720 of the staple/fastening element cartridge body 5702. To prevent it from extending in the direction.

Returning again to FIG. 29, when the anvil 5810 is pivoted and closed over the target tissue (not shown) located between the anvil body 5812 and the lower surface 5813, the tissue exerts a tissue force T _F3 on the anvil body 5812. In addition to the lower surface or tissue contacting surface 5813 of the tissue, this acts on the anvil 5810 with an inverse tissue moment C _T3 , which must be overcome by the closing moment C _M3 established by the elements of the closure system. The example shown in FIG. 29 shows a tissue force T _F3 evenly distributed on the anvil 5810 and a tissue moment arm M _T3 established by the clamped tissue (tissue clamped in FIG. 29 for clarity). Is not shown). As can be seen from this figure, in this example, the tissue moment arm M _T3 is significantly longer than the closure moment arm M _A3 (ie, M _T3 >M _A3 ).

31 and 32, as described above, the anvil trunnion 7822 of the anvil 7810 of the replaceable surgical tool assembly 7000 extends laterally from each side of the anvil attachment portion 7820 to form an elongated channel. Received within a corresponding "kidney-shaped" opening 7613 formed in the upstanding wall 7612 of the proximal end portion 7610 of the 7602. When the anvil 7810 is in the "fully" open position, the anvil trunnion 7822 can generally be located at the bottom 7613B of the kidney-shaped slot 7613. The anvil 7810 can be moved to a closed position by advancing the distal closure tube portion 8030 distally in the distal direction DD, which causes the inner cam surface of the distal end 8035 of the distal closure tube portion 8030. 8036 rides on anvil cam surface 7821 formed on anvil mount 7820 of anvil 7810. When the inner cam surface 8036 of the distal end 8035 of the distal closure tube portion 8030 is advanced distally along the anvil cam surface 7821 of the anvil attachment portion 7820 under the horizontal closing force F _H4 (FIG. 32). Distal closure tube portion 8030 pivots and pivots body portion 7812 of anvil 7810 relative to surgical staple/fastening element cartridge 7700 as anvil trunnion 7822 moves upwardly and distally within renal shaped slot 7613. Move in the direction. When the distal closure tube portion 8030 reaches the end of its closing stroke, the distal end 8035 of the distal closure tube portion 8030 abuts/contacts the raised anvil ledge 7823 and causes the lower surface or tissue of the body portion 7812 to lie. It functions to position the anvil 7810 such that the forming pockets (not shown) of the contact surface 7813 are properly aligned with the staples/fastening elements in the staple/fastening element cartridge 7700. Anvil ledge 7823 is defined between anvil cam surface 7821 of anvil attachment portion 7820 and anvil body portion 7812. Stated differently, in this configuration, the anvil cam surface 7821 does not extend to the outermost surface 7817 of the anvil body 7812. When in that position, the anvil trunnion 7822 is located at the top 7613T of the kidney-shaped slot 7613. M _A4 represents the moment arm from the anvil pivot axis PA ₄ (which coincides with the center of the anvil trunnion 7822) when the trunnion 7822 is located at the top 7613T of the kidney shaped slot 7613 as shown. In one example, the moment arm M _A4 can be, for example, about 0.184 inches. M _A4 ×F _H4 =closing moment C _M4 applied to the anvil attachment portion 7820.

In the example shown in FIGS. 31 and 32, the anvil body 7812 is formed with two tissue locking or tissue positioning formations 7830 that extend downwardly from each side of the anvil body 7812 (FIGS. 31 and 32). Only one tissue lock formation 7830 can be seen in FIG. 32). When the anvil 7810 is opened to receive the target tissue between the lower surface of the anvil and the surface of the cartridge deck, the downwardly extending tissue lock formations 7830 allow the target tissue to be located within the surgical staple/fastening element cartridge 7700. Position to prevent proximal extension beyond the staple/fastening element. In the embodiment shown in FIG. 31, for example, the most proximal staple/fastening element pocket 7720 is shown in phantom relative to the tissue anchor formation 7830. As can be seen from this figure, the tissue locking formation 7830 has a downwardly extending portion 7832 and a chamfered portion 7834. Contact of the target tissue with the portions 7832, 7834 causes the target tissue to be proximal beyond the proximal staple/fastening element supported within the proximal staple/fastening element pocket 7720 of the staple/fastening element cartridge body 7702. To prevent it from extending in the direction.

Returning again to FIG. 31, when the anvil 7810 is pivoted and closed over the target tissue (not shown) located between the lower surface of the anvil body portion 7812 or the tissue contacting surface 7813, the tissue is forced to the tissue force T. _F4 is applied to the lower surface 7813 of the anvil body 7812, which acts on the anvil 7810 with an inverse tissue moment C _T4 , which must be overcome by the closing moment C _M4 established by the elements of the closure system. The example shown in FIG. 31 shows a tissue force T _F4 evenly distributed on the anvil 7810, and a tissue moment arm M _T4 established by the clamped tissue (tissue force clamped in FIG. 31 for clarity). Is not shown). As can be seen from this figure, in this example the tissue moment arm M _T4 is significantly longer than the closing moment arm M _A4 (ie M _T4 >M _A4 ).

The exemplary replaceable surgical tool assembly 1000, 3000, 5000, 7000 illustrated includes a surgical stapling apparatus with a "separate and separate" closure system and firing system. That is, the closure system used to close the jaws and the firing system used to drive the firing member through the surgical staple/fastening element cartridge to cut and fasten tissue can be operated separately. Is. These separate and distinct closure and firing systems differ from the surgical stapling instrument required to advance the firing member by actuation of the firing system to move the jaws from the open position to the closed position. can do. However, as will be described in further detail below, some firing members of the replaceable surgical tool assemblies disclosed herein include firing members that are fired (i.e., in a distal direction through a surgical end effector). Additional closing movement can be added to the anvil as it moves forward). As can be seen by referring to FIGS. 25 to 32, in the illustrated example, M _A2 >M _A3 >M _A1 >M _A4 . 25, 27, 29 and 31 also show the resistance force established by the tissue during the closure process. T _F represents the force generated by the tissue as it is clamped between the anvil and the staple cartridge. These forces establish a “reverse” moment C _T applied to the anvil around the point/region where the distal closure tube section cam contacts the anvil cam surface of the anvil attachment section. In these illustrated examples, the tissue moment arm of each surgical instrument (tool assembly) is typically larger than the instrument's closure moment arm. Due to the difference between the typical tissue moment arm that acts in clamping the tissue between the anvil and the surgical staple/fastening element cartridge and the closure moment arm of the instrument, the anvil is sufficiently closed against the tissue It will be appreciated that there is a need for sufficient closure force to be applied to the anvil by the distal closure tube section. Therefore, the distal closure tube section must be strong and strong enough to handle the large internal stresses that occur during the closure process. To establish a stress state within the distal closure tube section that is closer to the “hoop stress” state instead of the “ring stress” state, the sidewalls of the corresponding elongated channel and It only has to come into contact with the anvil attachment part. Such a configuration may also increase the strength of the overall hoop-like structure of the tube. Maximizing the thickness of the distal closure tube section on the anvil side increases the strength of the tube section (hoop), while a large bearing surface or cam surface is provided for camming the anvil downward toward the cartridge. A space can be secured. US Patent Application No. 15/385,911, entitled "SURGICAL STAPLE/FASTENERS WITH INDEPENDENTLY ACTUATABLE CLOSING AND FIRING SYSTEMS", may be used with the various interchangeable surgical tool assemblies disclosed herein. Several distal closed tube segment configurations are disclosed.

The above discussion and comparison show that the design of a closure system with a large closure moment arm leads to an increase in the efficiency of each element of the closure system and of the closure force required to achieve a complete anvil closure to the tissue. It can be shown that the size can be reduced. However, as noted above, attempts to maximize the closing moment arm can result in tradeoffs with other design variables. For example, another desirable attribute is for "jaw opening". "Jaw opening" is measured from the center of the distal most staple or fastening element center along a line perpendicular to the corresponding most distal staple forming pocket on the lower surface or tissue contacting surface of the anvil body portion. It may refer to the distance J _A. FIG. 33 shows a jaw opening J _A1 of surgical end effector 1500. In the illustrated example, the most distal staple/fastening element pocket 1730 houses the most distal staple or fastening element (not shown) therein. Each of the most distal staples or fastening elements corresponds to a most distal staple/fastening element forming pocket 1815 (shown in phantom in FIG. 33) formed on the lower surface or tissue contacting surface 1813 of the anvil body 1812. ing. The distance J _A1 between the most distal staple/fastening element pocket 1730 and the corresponding most distal staple/fastening element forming pocket 1815 is the “jaw opening” of surgical end effector 1500. In at least one embodiment, for example, J _A1 is about 1.207 inches. FIG. 34 shows the jaw opening J _A2 of surgical end effector 3500. In the illustrated example, the most distal staple/fastening element pocket 3730 houses the most distal staple or fastening element (not shown) therein. Each of the most distal staples or fastening elements corresponds to a most distal staple/fastening element forming pocket 3815 formed in the lower surface or tissue contacting surface 3813 of the anvil body 3812. The distance J _A2 between the most distal staple/fastening element pocket 3730 and the corresponding most distal staple/fastening element forming pocket 3815 is the “jaw opening” of surgical end effector 3500. In at least one embodiment, for example, J _A2 is about 0.781 inches. FIG. 35 shows the jaw opening J _A3 of surgical end effector 5500. In the illustrated example, the most distal staple/fastening element pocket 5730 accommodates the most distal staple/fastening element (not shown) therein. Each of the most distal staple/fastening elements corresponds to a most distal staple/fastening element forming pocket 5815 formed on the lower surface or tissue contacting surface 5813 of the anvil body 5812. The distance J _A3 between the most distal staple/fastening element pocket 5730 and the corresponding most distal staple/fastening element forming pocket 5815 is the “jaw opening” of surgical end effector 5500. In at least one embodiment, for example, J _A3 is about 0.793 inches. FIG. 36 shows the jaw opening J _A4 of the surgical end effector 7500. In the illustrated example, the most distal staple/fastening element pocket 7730 houses the most distal staple or fastening element (not shown) therein. Each of the most distal staples or fastening elements corresponds to a most distal staple/fastening element forming pocket 7815 formed on the lower surface or tissue contacting surface 7813 of the anvil body 7812. The distance J _A4 between the most distal staple/fastening element pocket 7730 and the corresponding most distal staple/fastening element forming pocket 7815 is the “jaw opening” of surgical end effector 7500. In at least one embodiment, for example, J _A4 is about 0.717 inches. Therefore, in these examples, J _A1 >J _A3 >J _A2 >J _A4 . Thus, by comparison, surgical end effector 1500 has the largest jaw opening.

In the design of surgical end effectors with separate and separate closure and firing systems, such as the examples described above, which utilize an axially movable closure ring or distal closure tube section, an anvil or jaw pivot. The interrelationship between the axis of motion P _A and the distal end of the distal closure tube section, as well as the robustness of the anvil attachment section, determines the size of the jaw opening achievable in each particular end effector design. obtain. These interrelationships can be better understood with reference to FIG. 37, for example. FIG. 37 illustrates a surgical end effector 1500R with an anvil 1810R having an anvil attachment portion 1820R shown in solid lines. Anvil mounting portion 1820R includes anvil trunnion 1822R that defines a reference pivot axis P _AR about which anvil mounting portion 1820R can pivot relative to elongated channel 1602R. Surgical end effector 1500R also employs a distal closure tube portion 2030R having a distal end 2035R configured for cam contact with anvil attachment portion 1820R in the various forms described above. A surgical staple/fastening element cartridge 1700R is supported within the elongated channel 1602R and has a cartridge deck or tissue contacting surface 1710R. FIG. 37 shows the distance D _P between the reference pivot axis P _AR and the distal end 2035R of the distal closure tube portion 2030R. FIG. 37 shows the anvil 1810R by a solid line. The anvil body 1812R is in its maximum open position when the distal closure tube portion 2030R is in the starting position most proximal to the anvil attachment portion 1820R. Maximum aperture angle APA _R of the configuration is, for example, about 10 °. The aperture angle APA _R is typically in the configuration of many of the end effector. In another end effector configuration, the opening angle is 12.25°. In one configuration, for example, _{D P} may be about 0.200 inches. To achieve a larger opening angle APA _{R1 of} , for example, 22°, if there is no change in the relationship between the distal end 2035R of the distal closure tube portion 2030R and the reference pivot axis P _AR , then the anvil attachment portion 1820R ₁ The cross-sectional width M _w of the must be unnecessarily reduced. Anvil 1810R ₁ is shown in phantom. As can be seen from this figure, a shelving ledge must be formed between the anvil body 1812R ₁ and the anvil attachment portion 1820R ₁ so that its cross-sectional width is reduced. Aperture angle _{APA R1} is measured from the deck surface 1710R of the lower surface 1813R ₁ and surgical stapling / fastening elements cartridge 1700R of anvil body 1812R _1. Such reduced strength of the anvil attachment portion of the anvil leads to reduced reliability of the anvil and is less desirable than an anvil having an anvil attachment portion with a larger cross-sectional profile.

38 and 39, the jaw opening (or opening angle) increases as the pivot point or axis PA approaches the distal end of the starting or proximal position of the distal closure tube section. It can be realized more easily. FIG. 38 shows a surgical end effector 1500' substantially similar to surgical end effector 1500, except for the position of pivot axis PA' with respect to distal end 2035 of distal closure tube portion 2030. As can be seen from this figure, the distance between the pivot axis PA′ and the distal end 2035 of the distal closure tube section 2030 when the distal closure tube section 2030 is in its most proximal starting position is DP′. And the aperture angle is APA. Stated differently, when the distal closure tube portion 2030 is in its starting position corresponding to the fully open position of the anvil 1810, its distal end 2035 is on the reference plane RF perpendicular to the shaft axis SA. The distance between the pivot plane PA' and the reference plane RF', measured along a line passing through the pivot axis PA' and perpendicular to the reference plane RF', is DP'. In at least one configuration, DP' can be about 0.200 inches and the opening angle APA can be about 10°.

FIG. 38 shows the opening angle APA of the surgical end effector 1500′ having a distance DP′ between the reference pivot axis PA′ and the distal end 2035 of the distal closure tube portion 2030. Referring now to FIG. 39, as can be seen in this figure, the pivot axis PA and the distal end of the distal closure tube section 2030 when the distal closure tube section 2030 is in its most proximal starting position. The distance DP to the reference plane RF where 2035 is located is smaller than the distance DP′, and the opening angle APA ₁ is larger than APA. For example, in at least one embodiment, the distance DP is about 0.090 inches and the opening angle APA ₁ is about 22°. Therefore, by bringing the pivot axis PA closer to the distal end of the distal closure tube section when the distal closure tube section is in its most proximal starting position, the jaw width does not have to be reduced to reduce the cross sectional width of the jaw. The opening can be made significantly larger. This may represent a significant improvement over other surgical end effector configurations. In various situations, the center of the anvil trunnion 1822 is about 0.010 to 0.060 inches from the distal end 2035 of the distal closure tube section 2030 when the distal closure tube section is in the starting (most proximal) position. Ideally placed in between. The maximum distance for large jaw opening applications may be, for example, 0.090 inches. As also seen in FIG. 39, when the anvil 1810 is in its fully open position as shown, the downwardly extending portion 1832 of the tissue lock 1830 generally stops at the staple cartridge deck surface 1710. In addition, proximal movement of the target tissue during the clamping action is prevented.

40 and 41 show a tissue locking or tissue positioning mechanism 1830 used in one form of surgical end effector 1500. As mentioned above, the tissue lock 1830 includes a downwardly extending portion 1832 and a chamfered portion 1834. The downwardly extending portion 1832 includes a distal edge 1833 terminating in a distal corner 1835. FIG. 40 shows the anvil 1810 in its fully open position. The lower surface 1813 of the anvil body 1812 is located at the opening angle APA ₁ . In at least one configuration, the opening angle APA ₁ may be greater than 12.25 degrees (12.25°) and may be as much as 18 degrees (18°). Surgical end effector 1500, when in its fully open position, can further include a proximal opening P _APP1 that can be, for example, about 0.254 inches in at least one configuration. The proximal opening defines how much tissue can be placed between the proximal portions of the jaws (anvil and cartridge). A large proximal opening may be most effective, for example, in cutting and fastening lung tissue, which may be partially inflated when introduced between the anvil and the cartridge. The proximal opening can be measured from the center of the most proximal fastening element pocket or pocket pair directly perpendicular to the lower surface of the anvil body or the tissue contacting surface.

When the anvil 1810 is in the fully open position as shown in FIG. 40, the distal corner 1835 does not extend above the deck surface 1710 of the cartridge so that the tissue is in the most proximal position within the most recent staple pocket 1720. Movement to the proximal side of the staple is prevented. In at least one embodiment, the upright channel locking portions 1619 extend upwardly from the sidewalls of the elongated channels 1602 to coincide with their respective corresponding tissue locking portions 1830, so that the tissue locking portions 1830 and channels Tissue can be further prevented from entering the locking portion 1619 in the proximal direction. 41 shows the anvil 1810 in a fully closed position. When in that position, the distal edge 1833 of the tissue lock 1830 is generally aligned or aligned with the position of the most recent staple/fastening element within the staple/fastening element cartridge 1700. The distance from the articulation axis AA ₁ to the most proximal staple/fastening element is identified as T _SD1 . In one configuration, T _SD1 is, for example, about 1.044 inches. When the anvil 1810 is fully closed, the tissue lock 1830 is sized and shaped relative to the proximal end portion 1610 of the elongate channel 1602 to facilitate easy insertion through a correspondingly sized standard trocar. Can be In at least one example, the tissue lock 1830 of the anvil 1810 is sized and shaped for the elongated channel 1602 such that the surgical end effector 1500 can be inserted through a conventional 12 mm trocar.

42 and 43 show a tissue locking mechanism 3830 used in one form of surgical end effector 3500. As noted above, the tissue lock 3830 includes a downwardly extending portion 3832 and a chamfered portion 3834. The downwardly extending portion 3832 includes a distal edge 3833 terminating in a distal corner 3835. 42 shows the anvil 3810 in the fully open position. The lower surface 3813 of the anvil body 3812 is located at the opening angle APA ₂ . In at least one configuration, the opening angle APA ₂ is about 13.5 degrees (13.5°). Surgical end effector 3500, when in its fully open position, can further have a proximal opening P _APP2 that can be, for example, about 0.242 inches in at least one configuration. When the anvil 3810 is in the fully open position as shown in FIG. 42, the distal corners 3835 do not extend above the deck surface 3710 of the cartridge, so that tissue does not extend into the most recent staple/fastening element pocket 3720. The proximal staple/fastening element movement is prevented. FIG. 43 shows the anvil 3810 in a fully closed position. When in that position, the distal edge 3833 of the tissue lock 3830 is generally aligned or aligned with the position of the most recent staple/fastening element within the staple/fastening element cartridge 3700. The distance from the articulation axis AA ₂ to the most proximal staple/fastening element is identified as T _SD2 . In one configuration, T _SD2 is, for example, about 1.318 inches.

44 and 45 show a tissue locking mechanism 5830 used in one form of surgical end effector 5500. As mentioned above, the tissue lock 5830 includes a downwardly extending portion 5832 and a chamfered portion 5834. The downwardly extending portion 5832 includes a distal edge 5833 terminating in a distal corner 5835. FIG. 44 shows anvil 5810 in its fully open position. The lower surface 5813 of the anvil body 5812 is located at the opening angle APA ₃ . In at least one configuration, the aperture angle APA ₃ is about 8 degrees (8°). Surgical end effector 5500, when in its fully open position, can further have a proximal opening P _APP3 that can be, for example, about 0.226 inches in at least one configuration. When the anvil 5810 is in the fully open position as shown in FIG. 44, the distal corner 3835 extends slightly above the deck surface 5710 of the cartridge. FIG. 45 shows anvil 5810 in a fully closed position. When in that position, the distal edge 5833 of the tissue lock 5830 is generally aligned or aligned with the position of the most recent staple/fastening element within the staple/fastening element cartridge 5700. The distance from the articulation axis AA ₃ to the most proximal staple/fastening element is identified as T _SD3 . In one configuration, T _SD3 is, for example, about 1.664 inches.

46 and 47 show a tissue locking mechanism 7830 used in one form of surgical end effector 7500. As noted above, the tissue lock 7830 includes a downwardly extending portion 7832 and a chamfered portion 7834. The downwardly extending portion 7832 includes a distal edge 7833 terminating in a distal corner 7835. FIG. 46 shows anvil 7810 in its fully open position. The lower surface 7813 of the anvil body portion 7812 is located at the opening angle APA ₄ . In at least one configuration, the opening angle APA ₄ is about 10 degrees (10°). Surgical end effector 7500, when in its fully open position, can further have a proximal opening P _APP4 that can be, for example, about 0.188 inches in at least one configuration. When the anvil 7810 is in the fully open position as shown in FIG. 46, the distal corner 7835 extends slightly below the deck surface 7710 of the cartridge so that tissue is within the most recent staple pocket 7720. Movement to the proximal side of the most proximal staple/fastening element is prevented. FIG. 47 shows anvil 7810 in a fully closed position. When in that position, the distal edge 7833 of the tissue lock 7830 is substantially aligned or aligned with the position of the most recent staple/fastening element within the staple/fastening element cartridge 7700. The distance from the articulation axis AA ₄ to the most proximal staple/fastening element is identified as T _SD4 . In one configuration, T _SD4 is, for example, about 1.686 inches.

In various situations, the relationship with the articulation axis AA of the firing member, as well as the jaw pivot axis PA about which the anvil pivots, may be affected by the length of the articulating mechanism. Of course, longer articulation mechanisms can adversely affect the maneuverability of the end effector in tight spaces and can also limit the size of the jaw opening ultimately obtainable by the end effector. FIG. 48 shows surgical end effector 1500 in the fully open position. That is, the anvil 1810 has been pivoted to its fully open position and the firing member 2140 is in its home or starting position. The distance between each distal end of the anvil engagement mechanism 2147 and the articulation axis AA ₁ is represented by AJD ₁ . In at least one example, AJD ₁ is about 0.517 inches. By way of comparison with reference to FIG. 49, the distance AJD ₂ between each distal end of the anvil engagement mechanism 4147 and the articulation axis AA ₂ is about 0.744 inches in at least one example. Referring to FIG. 50, the distance AJD ₃ between each distal end of the anvil engagement mechanism 6147 and the articulation axis AA ₃ is about 1.045 inches in at least one example. Referring to FIG. 51, the distance AJD ₄ between each distal end of the anvil engagement mechanism 8147 and the articulation axis AA ₄ is about 1.096 inches in at least one example. Thus, as can be seen from this comparison, the articulation mechanism of surgical end effector 1500 (measured by distances AJD ₁ , AJD ₂ , AJD ₃ , AJD ₄ ) is more compact than surgical end effectors 3500, 5500 and 7500. And therefore easier to manipulate in at least some surgical applications.

Another factor that may affect the length of the coupling mechanism relates to the position of the firing member with respect to the anvil pivot axis PA about which the anvil pivots. For example, FIG. 52 shows anvil 1810 of surgical end effector 1500 in its fully open position. When in that position, the firing member 2140 is in its stop or "starting position." As can be seen from this figure, one useful measure for comparing the “compactness” of the articulation mechanism is between the respective proximal end 2149 of the upper anvil engagement mechanism 2147 and the anvil pivot axis PA _1. Is the proximal tab distance TD ₁ . In at least one preferred configuration, when the anvil 1810 is in the fully open position and the firing member 2140 is in its most proximal or starting position, the proximal tab distance TD ₁ is the total length TL ₁ of each of the anvil engagement features 2147. More than about 35 percent (35%). Stated differently, when the anvil 1810 and the firing member 2140 are in the positions described above, at least 35% of each of the anvil engagement features 2147 extend proximally beyond the anvil pivot axis PA _1. To do. FIG. 53 shows the end effector 1500 with the anvil 1810 in the closed position and the firing member 2140 in its most proximal or starting position. As can be seen in this figure, at least 35% of each of the anvil engagement features 2147 extend proximally beyond the anvil pivot axis PA1.

FIG. 54 shows the position of firing member 4140 of surgical end effector 3500 when anvil 3810 is in its fully open position and firing member 4140 is in its most proximal or starting position. As can be seen from this figure, each of the anvil engaging mechanism 4147 completely located distal to the anvil pivot axis PA _2, thereby, has a longer articulation mechanism. Therefore, the distance TD ₂ is the distal distance between the proximal end 4149 of the anvil engagement mechanism 4147 and the anvil pivot axis PA ₂ . FIG. 55 illustrates the position of firing member 6140 of surgical end effector 5500 when anvil 5810 is in its fully open position and firing member 6140 is in its most proximal or starting position. As can be seen from this figure, each of the anvil engaging mechanism 6147 completely located distal to the anvil pivot axis PA _3, thereby, has a longer articulation mechanism. Therefore, the distance TD ₃ is the distal distance between the proximal end 6149 of the anvil engagement mechanism 6147 and the anvil pivot axis PA ₃ . FIG. 56 illustrates the position of firing member 8140 of surgical end effector 7500 when anvil 7810 is in its fully open position and firing member 8140 is in its most proximal or starting position. As can be seen from this figure, each of the anvil engagement features 8147 is completely distal to the anvil pivot axis PA ₄ , which results in a longer articulating joint feature. Therefore, the distance TD ₄ is the distal distance between the proximal end 8149 of the anvil engagement mechanism 8147 and the anvil pivot axis PA ₄ . For comparison purposes, surgical end effector 1500 includes a portion of the anvil engagement mechanism on the firing member proximally beyond the anvil pivot axis when the firing member is in its most proximal or starting position. It is the only surgical end effector that extends. The respective anvil engagement features of the firing members of surgical end effectors 3500, 5500 and 7500 are fully distal to their respective anvil pivot axes when the firing members are in their most proximal or starting position. is there. Looking further at this comparison, for example, surgical end effector 1500 has at least 35 percent (35%) of the anvil engagement mechanism when the firing member is in its starting position and the anvil is fully open. It is the only surgical end effector that exists between the pivot axis and the articulation axis. A similar comparison can be made by comparing the same distance between the position of the lower channel engagement mechanism on the firing member and the jaw pivot axis when the firing member is in its most proximal starting position.

Another measure that can be used to assess the compactness of an articulating mechanism is the distance (distance from the articulation axis to the distal edge of the tissue anchor or the most proximal staple/fastening element for each end effector). TSD ₁ , TSD ₂ , TSD ₃ , TSD ₄ -FIGS. 41, 43, 45, 47) to the distal end of the anvil engagement mechanism on the firing member (distances AJD ₁ , AJD). ₂ , AJD ₃ , AJD ₄ -FIGS. 48 to 51) may be compared. For example, in the preferred configuration, AJD/TSD<0.500. The AJD/TSD ratio is sometimes referred to herein as the "compactness ratio" of that particular surgical end effector. For example, in one configuration of end effector 1500, AJD ₁ /TSD ₁ =0.517 inches/1.044 inches=0.495. In the illustrated example of end effector 3500, AJD ₂ /TSD ₂ =0.744 inches/1.318 inches=0.564. In the illustrated example of the end effector 5500, AJD ₃ /TSD ₃ =1.045 inches/1.664 inches=0.628. In one configuration illustrated, AJD ₄ /TSD ₄ =1.096 inches/1.686 inches=0.650. Thus, in at least one preferred configuration where the articulation mechanism is the most compact, has the largest jaw opening, and is the most maneuverable, the distance from the articulation axis to the proximal end of the anvil engagement mechanism on the firing member. And the distance from the articulation axis to the distal edge of the tissue lock or the most proximal staple/fastening element is less than approximately 0.500.

57-61 show a gradual closure mechanism for moving the anvil 1810 of the surgical end effector 1500 from the fully open position to the closed position and then to the overclosed position. 57 and 58 show the anvil 1810 in the closed position. In both of these figures, the distal closure tube section 2030 has been advanced in its distal direction DD to its fully closed position. As mentioned above, the interaction of the inner cam surface 2036 of the distal closure tube portion 2030 and the anvil cam surface 1821 of the anvil attachment portion 1820 causes the anvil 1810 to pivot into the closed position. As seen in FIG. 58, the staple forming underside or tissue contacting surface 1813 of the anvil body 1812 can be relatively parallel and spaced relative to the cartridge deck surface 1710 of the surgical staple/fastening element cartridge. When in its initial closed position, firing member 2140 is in its starting position as seen in FIG. When in that position, the anvil engagement mechanism 2147 of the firing member 2140 is not engaged with the anvil 1810, but is substantially horizontally aligned with the ledge 1816 formed on the anvil 1810. In at least one configuration, angled portions 1829 are formed proximal to each of the horizontal anvil shelves 1816. 59 shows the position of the firing member 2140 after distal advancement to the point where the anvil engagement mechanism 2147 first engages the horizontal anvil ledge 1816 of the anvil 1810, and FIG. 61 shows the anvil. Position of firing member 2140 and anvil 1810 such that the engagement mechanism is in full engagement with anvil shelf 1816 and exerts an "over-close" force on anvil 1810 as firing member 2140 continues to advance distally. Is shown. For example, in at least one configuration as shown in FIG. 61, when the anvil 1810 is in the closed position (with no tissue clamped between the anvil and the cartridge), the distal portion of the anvil 1810 is a cartridge deck. Contact surface 1710. As a result of such an arrangement, the force required to advance the firing member distally within the end effector from its starting position to its ending position is dependent on other surgical ends that do not employ such a progressive closure mechanism. It can generally be smaller than the effector configuration.

FIG. 62 shows anvil 1810 of surgical end effector 1500 in the fully open position. As mentioned above, each of the anvil trunnions 1822 is received within a corresponding trunnion cradle 1614 formed in the upstanding wall 1612 of the proximal end portion 1610 of the elongated channel 1602. Anvil trunnions 1822 are pivotally retained within their corresponding trunnion cradle 1614 by channel caps or anvil retainers 1630. Channel cap 1630 is a pair of mounting projections 1636 configured to be received and retained within corresponding projection grooves or notches 1616 formed in upstanding wall 1612 of proximal end portion 1610 of elongated channel 1602. Is included. During part of the closing stroke of the anvil 1810 against thick tissue, the reaction forces established during the tissue clamping process tend to push the anvil trunnions 1822 out of their respective trunnion cradle 1614. Channel cap 1630 includes a pair of slot cap portions 1632 corresponding to each trunnion cradle 1614. When the channel cap 1630 is installed on the proximal end portion 1610 of the elongated channel 1602, each slot cap portion 1632 functions to retain the anvil trunnion 1822 within its respective trunnion cradle 1614 during the closure process. As seen in FIGS. 62 and 63, each slot cap portion 1632 may have an arcuate bottom 1638 configured to pivotally receive a corresponding anvil trunnion 1822. Each slot cap 1632 may have a wedge shape that completely closes the open end of the trunnion cradle 1614. Such a channel cap mechanism 1630 can facilitate ease of assembly of the anvil 1810 into the elongated channel 1602. After the anvil trunnions 1822 are placed in their respective trunnion cradle 1614, the channel caps 1630 can be installed as shown. In at least one configuration, the distal closure tube portion 2030 is channeled into a position that serves to prevent the anvil trunnions 1822 from moving vertically within their corresponding trunnion cradle 1614 during closure as shown in FIG. 63. It has a function of holding the cap 1630. Alternatively, the mounting protrusions 1636 may be frictionally retained within their respective notches 1616, or may be retained within the notches by an adhesive or other fastening means.

The four replaceable tool assemblies 1000, 3000, 5000 and 7000 use different jaw open configurations to facilitate moving the anvil from the closed position to the fully open position. For example, the distal closure tube portion 4030 of the replaceable tool assembly 3000 includes a positive jaw or anvil opening mechanism 4040 corresponding to each sidewall of the distal closure tube portion 4030 and projecting inwardly from the sidewall. The positive anvil opening feature 4040 can extend inward through a corresponding opening in the transitioning sidewall and be welded to the distal closure tube section 4030. In this configuration, the positive anvil opening features are axially aligned with each other and are configured to operably interconnect with corresponding opening bevels formed on the lower surface of the anvil attachment portion 3820. When the anvil 3810 and the distal closure tube portion 4030 are in their fully closed position, each of the positive anvil opening features 4040 is within a cavity established between the anvil opening ramp and the bottom of the elongated channel 3602. To position. When in that position, the positive anvil opening mechanism 4040 may not contact the anvil attachment portion 3820, or at least exert no significant opening movement or force on the anvil attachment portion. When distal closure tube portion 4030 is moved proximally, anvil opening feature 4040 contacts the anvil opening ramp to pivot anvil 3810 to an open position. Further details regarding the positive anvil opening mechanism 4040 can be found in US patent application Ser.

With respect to the surgical end effector 5500 of the tool assembly 5000, the distal closure tube section 6030 includes two inwardly extending positive anvil opening tabs 6038 that can be stamped into the wall of the distal closure tube section 6030. See FIG. 21. In the configuration shown, the tabs 6038 are axially aligned with each other and are configured to contact corresponding upright anvil tails 5827 formed on the anvil attachment portion 5820. When the distal closure tube portion 6030 is moved proximally, the anvil opening mechanism 6038 contacts the anvil tail 5827 to pivot the anvil 5810 to the open position.

With respect to the surgical end effector 7500 of the tool assembly 7000, the distal closure tube portion 8030 imparts a positive anvil opening movement to the anvil 7810 as the distal closure tube portion 8030 is moved proximally. As mentioned above, an upright anvil tab 7824 is formed in the anvil attachment portion 7820 and extends into the horseshoe opening 8038 of the distal closure tube portion 8030. See FIG. 24. Opening 8038 defines an open tab 8039 configured to operatively interconnect with anvil tab 7824 as distal closure tube portion 8030 is retracted distally. Such interaction between the opening tab 8039 and the anvil tab 7824 exerts an opening movement on the anvil 7810, thereby moving the anvil 7810 to the open position.

With respect to the surgical end effector 1500 of the replaceable tool assembly 1000, in the illustrated example, the distal closure tube portion 2030 has two axially offset proximal and distal ends, as shown in FIGS. 64-77. Distal positive jaw opening features 2040 and 2050 are used. As seen in FIGS. 64 and 65, the proximal positive jaw opening mechanism 2040 is axially proximal to the distal positive jaw opening mechanism 2050 by an axial offset distance AOF. In FIG. 65, the proximal positive jaw opening mechanism 2040 is located to the right of the shaft axis SA ₁ (as seen by the user of the tool assembly). 66, 72 and 73 show the position of the proximal positive jaw opening mechanism 2040 when the anvil 1810 is in the closed position. When in that position, as seen in most detail in FIG. 66, the proximal positive jaw opening mechanism 2040 is within the right or first relief region 1825 formed in the anvil attachment portion 1820. 69, 72 and 73 show the position of the distal positive jaw opening mechanism 2050 when the anvil 1810 is in the closed position. When in that position, the distal positive jaw opening feature is in contact with the step portion 1823 of the anvil cam surface 1821, as seen in most detail in FIG. 69.

To initiate the opening process, the jaw closure system is activated to move the distal closure tube segment 2030 in the proximal direction PD. As the distal closure tube portion 2030 is moved in the proximal direction PD, the proximal positive jaw opening mechanism 2040 contacts the first or right jaw opening cam surface 1826 and jaws the anvil 1810. Start adding open movement. See FIGS. 67, 74 and 75. As seen in FIGS. 70, 74 and 75, during such proximal movement of the distal closure tube portion 2030, the distal positive jaw opening mechanism 2050 is provided with an anvil attachment portion 1820. Is axially moveable within a second, or left side relief region 1840 formed in the. Thus, the proximal positive jaw opening mechanism 2040 is exerting a first or initial opening movement on the anvil attachment portion 1820, while the distal positive jaw opening mechanism 2050 is No significant opening exercise was added to 1810. Further proximal movement of the distal closure tube portion 2030 causes the distal positive jaw opening mechanism 2050 to contact the left anvil opening tab 1842 and causes the proximal positive jaw opening mechanism 2040 to jaw open. It is separated from the partial cam surface 1826. Thus, the proximal positive jaw opening mechanism 2040 is disengaged from the anvil attachment portion 1820 and has not undergone any further opening movement to the anvil attachment portion, whereas the distal positive jaw opening mechanism 2050 is , A second jaw opening movement is applied to the anvil mount 1820 to pivot the anvil 1810 to the fully open position shown in FIGS. 68, 71, 76 and 77.

FIG. 78 is a graphical representation of the anvil or jaw opening process used in the replaceable tool assembly 1000. As can be seen from this figure, the left axis or vertical axis of the graph represents the amount of jaw opening from about 0° to about 22° (“anvil opening angle”), and the lower axis or horizontal axis is where the anvil is completely FIG. 7A illustrates the approximate proximal axial displacement of the distal closure tube portion 2030 from the closed position to the fully open anvil position. As mentioned above, the "anvil opening angle" or "jaw opening angle" refers to the cartridge deck surface or tissue contacting surface of the surgical fastening element cartridge, or the fastening element forming surface of the anvil or "second jaw" or The angle between the tissue contact surface can be represented. If the anvil is completely closed, the anvil opening angle may be, for example, about 0°. In the illustrated configuration, the distal closure tube section 2030 is proximally spaced from the first position (1850 on the graph) corresponding to the fully closed position, eg, about 0.040 inches proximally. , The proximal positive jaw opening mechanism 2040 can be moved to a first intermediate position (1852 on the graph) before beginning to apply a first jaw opening movement to the anvil 1810. Distal closure tube portion 2030 is provided in a proximal direction from a first intermediate position 1852 to a second intermediate position (1854 on the graph), for example about 0.040 inches to about 0.120 inches in a further proximal direction. Subsequent movement to the distance to the proximal positive jaw opening mechanism 2040 moves the anvil 1810 over an anvil opening angle of 0° to about 10°. The distal closure tube portion 2030 is closer by a further proximal distance (about 0.120 inches to about 0.140 inches) from the second intermediate position 1854 to the third intermediate position (1856 on the graph). The anvil remains at an anvil opening angle of about 10° during subsequent movement in the lateral direction. Distal closure tube portion 2030 is further proximal from third intermediate position 1856 to fourth intermediate position (1858 on the graph) a proximal distance (about 0.140 inches to about 0.240 inches). When moved in the direction, the distal positive jaw opening mechanism 2050 begins to exert a second jaw opening movement on the anvil 1810. Distal closure tube portion 2030 extends from a third intermediate position 1856 to a fourth intermediate position (1858 on the graph) an additional proximal distance (eg, about 0.140 inches to about 0.240 inches). The distal positive jaw opening mechanism 2050 moves the anvil 1810 relative to the elongated channel 1602 as it continues to move proximally only, thereby increasing the anvil opening angle to, for example, about 10° to about 22°. Distal closure tube portion 2030 further proximal distance (eg, about 0.240 inches to about 0.260 inches) from a fourth intermediate position 1858 to a final proximal position (1860 on the graph). While continuing to move, the anvil 1810 remains in the fully open position with the anvil opening angle of about 22°.

The closing process of the illustrated example of the replaceable tool assembly 1000 can be understood with reference to FIGS. 67-69 and 70-72, and 78. 68 and 71 show anvil 1810 in its fully open position. As can be seen in these figures, the proximal positive jaw opening feature 2040 is not in contact with the anvil attachment portion 1820 and the distal positive jaw opening feature 2050 is in contact with the left anvil opening tab 1842. ing. When the anvil closure process is initiated, the closure drive system is activated to move the distal closure tube segment 2030 in the distal direction DD. The anvil 1810 remains in its fully open position as the distal closure tube portion moves from the final proximal position 1860 to the fourth intermediate position 1858 (FIG. 78). Accordingly, once the closure process is initiated, in at least one example, the distal closure tube portion 2030 is distally moved a first or initial predetermined axial closure distance before the anvil 1810 begins to move. Can move to. Stated differently, the distal closure tube portion is movable a first predetermined axial closure distance before any closure movement is applied to the anvil 1810. In at least one example, the first or initial predetermined closure distance can be about 0.020 inches. As the distal closure tube section 2030 continues to move distally an intermediate axial closure distance, the distal end 2035 of the distal closure tube section 2030 is moved to the inner cam surface 2036 of the distal closure tube section 2030. It begins to contact the anvil cam surface 1821 of the anvil mounting portion 1820 until it begins to cam contact with the anvil cam surface 1821 (FIGS. 67 and 70). As the inner cam surface 2036 rides over the anvil cam surface 1821 and moves, the anvil 1810 pivots to a fully closed position. Anvil cam surface 1821 and internal cam surface 2036 are configured to allow further distal movement of distal closure tube portion 2030, eg, from a first midpoint or position 1852 to a first position 1850. (FIG. 78). Thus, in at least one example, the distal closure tube portion 2030 is moved distally a final predetermined axial closure distance during the closure process after the anvil 1810 has reached its fully closed position. You can In at least one example, the final predetermined axial closure distance can be about 0.040 inches.

A surgical stapling apparatus using a firing member assembly including a firing member having a tissue cutting surface is provided to prevent inadvertent advancement of the firing member unless an unused staple cartridge is properly supported in the end effector. It may be desirable for the firing system and the end effector portion(s) to be configured in various ways. For example, if there is no staple cartridge present and the firing member is advanced distally through the end effector, the tissue will be cut, but not stapled. Similarly, if a used staple cartridge (ie, a staple cartridge in which at least some of the staples have already been fired) is present in the end effector and the firing member is advanced, the tissue will be severed, but Stapling, if any, may not be complete. It will be appreciated that the occurrence of such a phenomenon may lead to unwanted and catastrophic results during a surgical procedure. U.S. Patent No. 6,988,649, title of the invention "SURGICAL STAPLING INSTRUMENT HAVING A SPENT CARTRIDGE LOCKOUT", No. 7,044,352, title of the invention "SURGICAL STAY FORMING FORMING FORMING FORMING FORMING LOCKING FORMING FORMING LOCKING FORMING LOCKING FORMING LOCKING FORMING No. 7,380,695, the title of the invention “SURGICAL STAPLING INSTRUMENT HAVING A SINGLE LOCKOUT MECHANISM FOR PREVENTION OF FIRST ING RUMS CONTINUES of the U.S. Patent Application No. 2016-0367247 ING RUGS RUGS, U.S. Pat. fOR PREVENTING FIRING SYSTEM ACTUATION WHEN a CARTRIDGE iS SPENT oR MISSING ", and U.S. Patent application Serial No. 15 / 385,958, is entitled" SURGICAL INSTRUMENTS WITH LOCKOUT ARRANGEMENTS fOR PREVENTING FIRING SYSTEM ACTUATION UNLESS AN UNSPENT STAPLE CARTRIDGE iS PRESENT "of the invention, Each discloses various firing member lockout mechanisms. Each of these references is incorporated herein by reference in its entirety.

With reference to FIGS. 60A-60I, a surgical end effector 9010 that is part of a surgical tool assembly 9000 that includes a first jaw 9020 and a second jaw 9120 is shown. In the illustrated configuration, for example, the first jaw 9020 includes an elongate channel 9022 configured to removably and operably support a surgical staple cartridge 9600 therein. The elongated channel 9022 is attached to the elongated shaft assembly 9300 of the surgical tool assembly. In the configurations shown in FIGS. 60C and 60D, for example, the elongated channel 9022 is pivotally coupled to the spine assembly 9310 of the elongated shaft assembly 9300 to selectively articulate with respect to the elongated shaft assembly. See Figures 60D, 60E, 60H and 60I. The elongate shaft assembly 9300 can define a shaft axis SA. The second jaw 9120 includes an anvil 9122 movably supported on the elongated channel 9022 and moveable between an open position and a closed position by a closure system 9400. Anvil 9122 includes an anvil body 9124 and anvil attachment portion 9126 pivotally supported for pivotal movement with respect to proximal end 9024 of elongated channel 9022. The closure system 9400 is axially moveable, eg, configured to cam engage a cam surface 9128 on the anvil attachment portion 9126 as the distal closure tube portion 9410 is axially advanced in the distal direction DD. An optional distal closure tube portion 9410. The distal closure tube portion 9410 may also be configured to apply an opening movement to the anvil attachment portion 9126 as the distal closure tube portion 9410 is moved in the proximal direction PD. See Figures 60C and 60D.

Surgical tool assembly 9000 further including a firing system 9500, in the illustrated configuration, is a firing member configured to receive a firing motion from a firing control system, eg, supported within a housing of a handheld control system or a robot control system. An assembly 9510 is included. In the illustrated embodiment, one form of firing member assembly 9510 includes a first firing member element 9520 that comprises a firing member body 9522 that supports a tissue cutting surface or blade 9524. The firing member body 9522 is coupled to a firing bar or knife bar 9530 that is operatively interconnected with a corresponding portion of the firing system 9500 to receive a firing movement from a firing control system. The firing member body 9522 can include a second jaw or anvil engager that can include a laterally extending tab element configured to be received within a corresponding second jaw passage or slot 9125 of the anvil body 9124. A coupling mechanism 9526 can be included. Further, the firing member body 9522 further includes a first jaw or channel engagement mechanism or foot 9528 configured to be received within a corresponding first jaw passage or slot or opening 9023 of the elongated channel 9022. Can be included.

Staple cartridge assembly 9600 includes a cartridge body 9602. See Figures 60H and 60I. Cartridge body 9602 includes a proximal end 9604, a distal end (not shown), and a deck 9606 extending between the proximal and distal ends. In use, staple cartridge 9600 is positioned on the first side of the tissue to be stapled and anvil 9122 is positioned on the second side of the tissue. Anvil 9122 moves toward staple cartridge 9600 to compress and clamp tissue against deck 9606. The staples or fastening elements removably stored in the cartridge body 9602 can then be deployed into the tissue. Cartridge body 9602 includes a staple or fastening element cavity (not shown) defined therein, with staples or fastening elements (not shown) removably stored within the staple cavity. Each staple cavity can be arranged in a longitudinal row. In one configuration, three rows of staple cavities are located on the first side of the longitudinal slots and three rows of staple cavities are located on the second side of the longitudinal slots. The longitudinal slot is configured to axially receive the first firing member element 9520 through the slot. Other configurations of staple/fastening element cavities and staples or fastening elements may also be possible.

The staples or fastening elements are supported by a staple driver (not shown) movably supported within the cartridge body 9602. The driver is moveable between a first position, an unfired position, and a second position, which ejects staples or fastening elements from the cavity, a fired position. The driver extends within the cartridge body 9602 by a retainer (not shown) that extends around the bottom of the cartridge body 9602 and includes an elastic member configured to grip the cartridge body and retain the retainer with respect to the cartridge body. Held in. The driver can be moved between their unfired position and their fired position by the sled 9610. The sled 9610 is moveable between a proximal or "unfired" position adjacent the proximal end 9604 and a distal or "fired" position (after firing) adjacent the distal end. .. As seen in FIG. 60G, sled 9610 includes a plurality of ramps or cams configured to slide under the driver to lift the driver and the staples or fastening elements supported thereon toward the anvil. Includes surface 9620. By “unfired”, “unused”, “new” or “new” staple cartridge 9600 is meant herein that all staples or fastening elements of staple cartridge 9600 are in a “ready to fire position”. To do. When in that position, the sled assembly 9610 is located in its starting position or "unfired" position. A new staple cartridge 9600 may be placed within the elongated channel 9022 and retained within the elongated channel by a snap element on the cartridge body 9602 configured to retainably engage a corresponding portion of the elongated channel 9022. 60G and 60H show a portion of surgical end effector 9010 having a new or unfired surgical staple cartridge 9600 disposed therein. As seen in FIGS. 60G and 60H, sled 9610 is in the unfired position. More precisely, to prevent the firing system 9500 from being activated if the unfired or new surgical staple cartridge 9600 is not properly placed in the elongated channel 9022, more precisely, the first firing member element. To prevent 9520 from being driven distally through surgical end effector 9010, the illustrated surgical tool assembly 9000 employs a firing member lockout system, generally designated 9700.

60E and 60F, in one form, the firing member lockout system 9700 includes a second firing member element or tilt element 9710 that includes a sled engagement portion 9720. In the configuration shown, the second firing member element 9710 is pivotally received, for example, in a corresponding pivot hole 9523 in the firing member body 9522 to be transverse to the shaft axis SA. Is pivotally connected to the firing member body 9522 by a mounting joint 9713 in the form of one or more pivot members 9714 that pivot about the pivot axis PA. Such a configuration facilitates pivotal movement of the second firing member element 9710 relative to the firing member body 9522 between the locked position (FIG. 60E) and the unlocked position (FIG. 60F). In the illustrated example, firing member body 9522 includes a distal surface 9525 that is generally perpendicular to channel engagement feature 9528 and a lockout surface 9527 that is angled relative to distal surface 9525. Further, one or more support ramps 9529 are formed in the firing member body 9522 that function to define a corresponding landing surface 9531 for receiving the second firing member element 9710 when in the locked configuration. See Figure 60E.

When the second firing member element 9710 is in the unlocked position, as seen in FIG. 60F, there is between the proximal surface 9722 of the second firing member element 9710 and the distal surface 9525 of the firing member body 9522. A space is provided, generally designated as 9724. Thus, when in the unlocked position, the proximal surface 9722 of the second firing member element 9710 is not in contact with the distal surface 9525 of the firing member body 9522. 60A-60D, the second firing member element 9710 engages a corresponding lockout notch 9026 formed in the elongated channel 9022 when the second firing member element 9710 is in the locked position. Further includes at least one lockout engagement portion 9730 including a beveled lock end 9732 configured to. In one embodiment, for example, the second firing member element 9710 includes two lockout engagement portions 9730. As also seen in FIGS. 60A-60D, a lockout spring or biasing member 9740 is attached to the proximal end 9024 of the elongated channel 9022 and includes two spring arms 9742, each corresponding to a lockout engagement portion 9730. I'm out. As shown in FIGS. 60B-60D, the spring arms 9742 serve to bias the second firing member element 9710 to the locked position.

Referring now to FIGS. 60G-60I, the sled 9610 includes an unlocked portion configured to engage the sled engagement portion 9720 of the second firing member element 9710 when the sled 9610 is in the unfired position. 9630 is included. Such a configuration serves to pivot the second firing member element 9710 to the unlocked position. When in the unlocked position, the beveled lock end 9732 of each lockout engagement portion 9730 pivots out of the corresponding lockout notch 9026 of the elongated channel 9022 to fire the firing member assembly 9510 through the staple cartridge. It can be advanced distally. If the staple cartridge loaded in the elongated channel 9022 has already been fired or partially fired, the sled 9610 is not in the unfired position and pivots the second firing member element 9710 to the unlocked position. To move. In such a case, the clinician will not be able to advance or fire the firing member assembly 9510 distally. When in the unlocked position, actuation of firing system 9500 will cause firing member assembly 9510 to move distally. As described above, when firing member assembly 9510 is driven distally, second firing member element 9710 is in contact with firing member body 9522 via pivot member 9714. However, when the second firing member element 9710 is pivoted to the locked position (FIG. 60E), a portion of the proximal surface 9722 abuts the angled lockout surface 9527 of the firing member body 9522. Further, as seen in most detail in FIGS. 60E and 60F, the pivot holes 9523 of the firing member body 9522 are sized to provide a gap C therebetween between corresponding pivot members 9714. Thus, the load is transferred directly to the firing member body 9522 via the second firing member element rather than through the pivoting member 9714. As seen in FIG. 60E, the angled lockout surface 9527 facilitates pivotal movement of the sled engagement portion 9720 to the locked position. If the clinician inadvertently applies a firing motion FM to the firing member assembly 9510 in the distal direction DD when the second firing member element 9720 is in the locked position, the second firing member element 9720 and the elongate strip. Engagement of channel 9022 with lockout notch 9026 prevents distal advancement of firing member assembly 9510 and the resulting unlocking loading force UL is applied to second firing member element 9720. This unlocking load force UL is applied to the tilted lockout surface 9527 of the firing member body 9522 and not to the pivot member 9714. Such a configuration prevents the pivot member 9714 from being loaded or stressed if the clinician inadvertently attempts to advance the firing member assembly 9510 when in the locked position. Thus, this configuration may prevent the pivoting member 9714 from shearing when the firing member assembly 9510 is attempted to be so advanced.

Thus, the firing member assembly 9510 and firing member lockout assembly 9700 described above can provide several advantages. For example, as described above, the distal surface 9525 of the firing member body 9522 bears the firing load which causes the pivot member to attach the second firing member element 9710 to the first firing member element 9520. To be transmitted to. When in the locked out or locked position, the load is received by the beveled lock end 9732 of the lockout engagement portion 9730. Such an arrangement also eliminates the need for vertical movement of firing member assembly 9510, or more specifically, first firing member element 9520. Such vertical movement can result in inadvertent misalignment with the anvil and elongated channel when moved to the unlocked state for firing. Further, since the first firing member element 9520 does not move vertically, the anvil and channel engagement features have an advantageous shape and design to provide the desired engagement with the anvil and channel upon firing. can do. The design and shape of the firing member body can also provide a large surface area for attachment to the knife bar, for example by welding. For example, the distal end of the knife bar can be attached to the firing member body from both sides by butt welding and laser welding to interconnect the stack to form a knife bar at the distal end. Such a welded form can be made more compact in the longitudinal direction as compared with the conventional welded form, and an excellent joint length can be obtained. Other advantages can also be enjoyed from the firing member and lockout system configurations described above.

Although many of the surgical instrument systems described herein operate with electric motors, the surgical instrument systems described herein can operate in any suitable manner. In various cases, the surgical instrument system described herein can be operated by, for example, a manually operated trigger. In certain examples, the motors disclosed herein may include parts of a robot control system. Further, any of the end effector and/or tool assemblies disclosed herein can be utilized with robotic surgical instrument systems. For example, U.S. patent application Ser. No. 13/118,241, titled "SURGICAL STAPLING INSTRUMENTS WITH ROTATABLE STAPLE DEPLOYMENT ARRANGEMENTS", now US Pat. Is disclosed in more detail.

Although the surgical instrument system described herein is described in connection with staple deployment and deformation, the embodiments described herein are not so limited. Various embodiments are also contemplated using fastening elements other than staples, such as clamps or tacks. Further, various embodiments are contemplated that utilize any suitable means for sealing tissue. For example, the end effector according to various embodiments can include an electrode configured to heat and seal tissue. Also, for example, the end effector according to certain embodiments can apply vibrational energy to seal the tissue.

Example 1-Surgical instrument including an elongated shaft assembly defining a shaft axis. The surgical end effector is operably coupled to the elongate shaft assembly for selective articulation relative to the elongate shaft assembly about an articulation axis transverse to the shaft axis. The surgical end effector includes a first end effector jaw connected to an articulation joint connected to the elongated shaft assembly. A second end effector jaw is selectively attached to the first end effector jaw such that the second end effector jaw selectively pivots relative to the first end effector jaw about a jaw pivot axis transverse to the shaft axis. Be connected. One of the first end effector jaw and the second end effector jaw is configured to operably support a surgical fastening element cartridge including the most proximal fastening element position therein. One of the first end effector jaw and the second end effector jaw has an axial direction that includes a closure member cam surface configured to make cam contact with a jaw cam surface of one of the first effector jaw and the second effector jaw. A movable closure member allows movement between an open position and a fully closed position. The first distance between the articulation axis and the cam contact area of the closure member cam surface and the jaw cam surface divided by the second distance from the articulation axis to the most proximal fastening element position is: It is less than 0.5.

Example 2-A first distance between the jaw pivot axis and the cam contact area between the closure cam member surface and the jaw cam surface is defined as a second distance from the articulation axis to the proximal fastening element position. The surgical instrument of Example 1, having a value greater than 0.2 and less than 0.5.

Example 3-The surgical instrument of Examples 1 or 2, wherein a cartridge of surgical fastening elements is supported within a first end effector jaw, the second end effector jaw including an anvil including a jaw cam surface.

Example 4-The surgical instrument of Examples 1, 2 or 3 wherein the jaw pivot is fixed.

Example 5-Surgical according to Example 3, wherein the anvil includes at least one tissue locking member that includes a distal tissue contacting surface that corresponds to the most proximal fastening element position when the anvil is in the fully closed position. Instrument.

Example 6-Anvil mounting including an anvil body and a pair of laterally extending anvil trunnions configured to be pivotally supported within a jaw cam surface and corresponding openings in a first end effector jaw. The surgical instrument of any one of claims 3 or 5, including a portion.

Example 7-The surgical instrument of Examples 1, 2, 3, 4, 5 or 6 wherein the closure member includes an axially movable distal closure tube portion that includes a closure member cam surface.

Example 8-Elongated shaft assembly includes a spine assembly operably coupled to a first end effector jaw, and a movably supported axially movable and axially movable distal end relative to the spine assembly. Proximal closure tube assembly pivotally connected to the proximal closure tube portion.

Example 9-The example of Example 8, wherein the proximal closure tube assembly is operatively interconnected with a closure system configured to selectively apply axial opening and closing movements to the proximal closure tube assembly. Surgical instruments.

Example 10-The surgical instrument of Example 9, wherein the closure system is supported by a handheld housing.

Example 11-The surgical instrument of Example 10, wherein the closure system is supported by a housing operably interconnected with a robot-controlled actuator.

Example 12-Employing an elongate shaft assembly to include an elongate shaft assembly defining a shaft axis and selectively articulating with respect to the elongate shaft assembly about an articulation axis transverse to the shaft axis. A surgical instrument further comprising a surgical end effector coupled thereto. The surgical end effector includes an elongated channel coupled to an articulation joint coupled to the elongated shaft assembly. The elongate channel is configured to operably support the surgical fastening element cartridge. The surgical fastening element cartridge includes the most proximal fastening element position. The surgical end effector includes an anvil pivotally coupled to the elongate channel for selective pivotal movement relative to the elongate channel about a fixed anvil pivot axis transverse to the shaft axis. Further included. The anvil is moveable between an open position and a fully closed position by an axially movable closure member that includes a closure member cam surface configured to make cam contact with the anvil cam surface of the anvil. The first distance between the articulation axis and the cam contact area of the closure member cam surface and the cam surface divided by the second distance from the articulation axis to the most proximal fastening element position is: It is less than 0.5.

Example 13-A first distance between the anvil pivot axis and the cam contact area of the closure member cam surface and the anvil cam surface at a second distance from the articulation axis to the most proximal fastening element position. The surgical instrument according to example 12, wherein the divided value is greater than 0.2 and less than 0.5.

Example 14-The example 14 or 13 wherein the anvil comprises at least one tissue locking member that includes a distal tissue contacting surface that corresponds to the most proximal fastening element position when the anvil is in the fully closed position. Surgical instruments.

Example 15-An anvil includes an anvil body and an anvil mounting portion having a pair of laterally extending anvil trunnions configured to be pivotally supported within corresponding openings of an anvil cam surface and an elongated channel. The surgical instrument of any one of Examples 12, 13 or 14 including.

Example 16-The surgical instrument of Examples 12, 13, 14 or 15 wherein the closure member includes an axially movable distal closure tube portion that includes a closure member cam surface.

Example 17-The surgical instrument of Example 16, wherein the elongate shaft assembly comprises a spine assembly operably coupled to the elongate channel. A proximal closure tube assembly is movably supported for axial movement relative to the spine assembly and is pivotally coupled to the axially movable distal closure tube portion.

Example 18-The proximal closure tube assembly according to example 17, wherein the proximal closure tube assembly is operatively interconnected with a closure system configured to selectively apply axial opening and closing movements to the proximal closure tube assembly. Surgical instruments.

Example 19-The surgical instrument of Example 18, further comprising a firing member operably supported for axial movement through the surgical fastening element cartridge upon application of an axial firing movement.

Example 20-Surgical system including a housing operably supporting a closure system therein. The surgical system further includes a replaceable surgical tool assembly including an elongate shaft assembly operably and removably connectable to the housing such that the proximal closure portion of the elongate shaft assembly is axially closed from the closure system. Is configured to receive. The elongate shaft assembly defines a shaft axis. The surgical end effector is operably coupled to the elongate shaft assembly for selective articulation relative to the elongate shaft assembly about an articulation axis transverse to the shaft axis. The surgical end effector includes a first end effector jaw connected to an articulation joint connected to the elongated shaft assembly. A second end effector jaw is selectively attached to the first end effector jaw such that the second end effector jaw selectively pivots relative to the first end effector jaw about a jaw pivot axis transverse to the shaft axis. Be connected. One of the first end effector jaw and the second end effector jaw is configured to operably support a surgical fastening element cartridge having a most proximal fastening element position. One of the first end effector jaw and the second end effector jaw is in an open position and a fully closed position by an axially movable distal closure member operably coupled to a proximal closure portion of the elongate shaft assembly. It is possible to move between. The distal closure member includes a closure member cam surface configured to come into cam contact with a jaw cam surface of one of the first end effector jaw and the second end effector jaw. The first distance between the articulation axis and the cam contact area of the closure member cam surface and the jaw cam surface divided by the second distance from the articulation axis to the most proximal fastening element position is: It is less than 0.5.

Example 21-Surgical instrument including an elongated shaft assembly defining a shaft axis. The surgical end effector is operably coupled to the elongate shaft assembly for selective articulation relative to the elongate shaft assembly about an articulation axis transverse to the shaft axis. The surgical end effector also includes a first end effector jaw connected to an articulation joint connected to the elongated shaft assembly. A second end effector jaw is selectively attached to the first end effector jaw such that the second end effector jaw selectively pivots relative to the first end effector jaw about a jaw pivot axis transverse to the shaft axis. Be connected. The surgical instrument is at least configured to apply a closing motion to the second end effector jaw as the axially movable firing member is moved from the starting position to the ending position within the first end effector jaw. Further included is an axially movable firing member including one jaw engagement mechanism. The at least one jaw engagement mechanism is such that a portion of the at least one jaw engagement mechanism is disposed between the jaw pivot axis and the articulation axis when the axially movable firing member is in the starting position. Is configured.

Example 22-Part of at least one jaw engagement mechanism articulates with a jaw pivot axis when the axially movable firing member is in a starting position and the second end effector jaw is in a fully open position. The surgical instrument of Example 21 disposed between and on a shaft.

Example 23-Example 21 or 22, wherein at least 35 percent of each jaw engagement mechanism is between the jaw pivot axis and the articulation axis when the axially movable firing member is in the starting position. Surgical instruments.

Example 24--At least 35% of each jaw engagement mechanism articulates with the jaw pivot axis when the axially movable firing member is in the starting position and the second jaw of the end effector is in the fully open position. The surgical instrument of Example 22, which is between the shaft and.

Example 25-Axial Movable Closure Independently Movable With respect to Axial Movable Firing Member and Configured to Selectively Add Additional Closing Motion to a Second End Effector Jaw The surgical instrument according to example 21, 22, 23 or 24 further comprising a member.

Example 26-The surgical instrument of Example 25, wherein the axially movable closure member comprises a closure member cam surface configured to make cam contact with the jaw cam surface of the second end effector jaw.

Example 27-The surgical instrument of any of Examples 21, 22, 23, 24, 25 or 26, wherein the axially movable firing member comprises a tissue cutting surface.

Example 28-Example 21, wherein the first end effector jaw comprises an elongated channel configured to operably support the surgical fastening element cartridge therein and the second end effector jaw comprises an anvil. The surgical instrument according to 22, 23, 24, 25, 26 or 27.

Example 29-The surgical instrument of Examples 21, 22, 23, 24, 25, 26, 27 or 28, wherein the jaw pivot is fixed.

Example 30-Surgical instrument including an elongated shaft assembly defining a shaft axis. The surgical end effector is operably coupled to the elongate shaft assembly for selective articulation relative to the elongate shaft assembly about an articulation axis transverse to the shaft axis. The surgical end effector includes an elongate channel coupled to the elongate shaft assembly and configured to operatively support a surgical fastening element cartridge therein. The anvil is coupled with the elongated channel for selective pivotal movement with respect to the elongated channel about a fixed jaw pivot axis transverse to the shaft axis. The surgical instrument includes at least one anvil engagement mechanism configured to exert a closing motion on the anvil when the axially movable firing member is movable from a starting position to an ending position within the elongated channel. , Further including an axially movable firing member. The at least one anvil engagement mechanism has a portion of the at least one anvil engagement mechanism disposed between the fixed jaw pivot axis and the articulation axis when the axially movable firing member is in the starting position. Is configured.

Example 31-Part of at least one anvil engagement mechanism between a fixed jaw pivot axis and an articulation axis when the axially movable firing member is in a starting position and the anvil is in a fully open position. The surgical instrument of Example 30, which is deployed.

Example 32-Example 30 or 31, wherein at least 35 percent of each anvil engagement mechanism is between the fixed jaw pivot axis and the articulation axis when the axially movable firing member is in the starting position. The surgical instrument described.

Example 33-Examples 30, 31 or at least 35 percent of each anvil engagement mechanism is located between the fixed jaw pivot axis and the articulation axis when the axially movable firing member is in the starting position. 32. The surgical instrument according to 32.

Example 34-At least 35% of each anvil engagement mechanism is located between the jaw pivot axis and the articulation axis when the axially movable firing member is in the starting position and the anvil is in the fully open position. The surgical instrument of Example 30, wherein

Example 35-Implementation Further Including an Axial Movable Closure Member Movable Independently of the Axial Movable Firing Member and Configured to Selectively Add Further Closure Motion to the Anvil The surgical instrument according to example 30, 31, 32, 33 or 34.

Example 36-The surgical instrument of Example 35, wherein the axially movable closure member comprises a closure member cam surface configured to make cam contact with the anvil cam surface of the anvil.

Example 37-The surgical instrument of Examples 30, 31, 32, 33, 34, 35 or 36 wherein the firing member comprises a tissue cutting surface.

Example 38-A firing member includes a firing member body that includes a tissue cutting surface, and at least one anvil engagement feature has a first anvil engagement tab projecting from a first side surface of an upper portion of the firing member body. A second anvil engagement tab projecting from a second side of the upper portion of the firing member body, the surgical instrument of any one of Examples 30, 31, 32, 33, 34, 35 or 36.

Example 39-The surgical instrument of Example 38, wherein the firing member body extends through a slot in the anvil attachment portion of the anvil when the firing member is in the starting position.

Example 40-A surgical system including a housing operably supporting a closure system and a firing system. The closure system and the firing system can be operated independently of each other. The surgical system further includes a replaceable surgical tool assembly including an elongate shaft assembly operably and removably connectable to the housing such that the proximal closure portion of the elongate shaft assembly is axially closed from the closure system. And a proximal firing member of the elongate shaft assembly configured to receive a firing motion from the firing system. The elongate shaft assembly defines a shaft axis. The surgical end effector is operably coupled to the elongate shaft assembly for selective articulation relative to the elongate shaft assembly about an articulation axis transverse to the shaft axis. The surgical end effector includes an elongate channel coupled to the elongate shaft assembly and configured to operatively support a surgical fastening element cartridge therein. The anvil is coupled with the elongated channel for selective pivotal movement with respect to the elongated channel about a jaw pivot axis transverse to the shaft axis. An axially moveable firing member is operably coupled to the proximal firing member and exerts a closing motion on the anvil when the axially movable firing member is movable from a start position to an end position within the elongated channel. And at least one anvil engagement mechanism configured to. The at least one anvil engagement mechanism is such that a portion of the at least one anvil engagement mechanism is disposed between the jaw pivot axis and the articulation axis when the axially movable firing member is in the starting position. Is configured.

Example 41-The surgical instrument of Example 40, wherein the housing comprises part of a robotic system.

Example 42-A surgical instrument including an elongated shaft assembly defining a shaft axis. A first end effector jaw is coupled to the elongated shaft assembly and a second end effector jaw is transverse to the shaft axis and fully open about a fixed jaw pivot axis extending through the shaft axis. The first end effector jaw is coupled for selective pivotal movement with respect to the first end effector jaw between a position and a fully closed position. The elongated shaft assembly has an axis between a starting position corresponding to a fully open position of the second end effector jaw and an ending position corresponding to a fully closed position of the second end effector jaw relative to the first end effector jaw. A directionally movable closure member is included. When the closure member is in the starting position, its distal end lies in a plane distally spaced from the jaw pivot axis by a distance measured along the shaft axis that is 0.090 inches or less.

Example 43-The surgical instrument of Example 42, wherein the distal end of the closure member lies on the plane when the closure member is in the starting position, the plane intersecting the jaw pivot axis.

Example 44-The surgical instrument of Examples 42 or 43, wherein the distance is in the range of 0.010 to 0.060 inches.

Example 45-A closure member includes an axially movable distal closure tube portion, the axially movable distal closure tube portion having an axially movable distal closure tube portion from a starting position to an end position. The surgical instrument of any one of Examples 42, 43 or 44 including a closure cam surface configured to cam engage a jaw cam surface of the second end effector jaw when moveable.

Example 46-Example 42, wherein the first end effector jaw comprises an elongated channel configured to operably support the surgical fastening element cartridge therein and the second end effector jaw comprises an anvil. The surgical instrument according to 43, 44 or 45.

Example 47-An anvil includes an anvil body and an anvil mounting portion that includes a pair of laterally extending anvil trunnions configured to be pivotally supported within corresponding openings of the anvil cam surface and the elongated channel. The surgical instrument of Example 46, including.

Example 48-A closure member includes an axially movable distal closure tube portion, wherein the axially movable distal closure tube portion has an axially movable distal closure tube portion in a starting to end position. 48. A surgical instrument as in example 46 or 47 including a closure cam surface configured to cam engage an anvil cam surface of the anvil when movable to the front.

Example 49-Elongate Shaft Assembly Operatively Connected to an Elongate Channel and a Spine Assembly and a Distal Closure Portion Movably Supported and Axial Movable for Axial Movement with respect to the Spine Assembly A proximal closure tube assembly pivotally coupled to the surgical instrument of claim 48.

Example 50-The example of Example 49, wherein the proximal closure tube assembly is operatively interconnected with a closure system configured to selectively apply axial opening and closing movements to the proximal closure tube assembly. Surgical instruments.

Example 51-The surgical instrument of Example 50, wherein the closure system is supported by a handheld housing.

Example 52-The surgical instrument of Example 50, wherein the closure system is supported by a housing operably interconnected with a robot-controlled actuator.

Example 53-Surgical instrument including an elongated shaft assembly defining a shaft axis. An elongate channel configured to operably support the surgical fastening element cartridge therein and elongate to selectively articulate with respect to the elongate shaft assembly about an articulation axis transverse to the shaft axis. Operatively coupled to the shaft assembly. The anvil is pivotable in the elongated channel for selective pivotal movement relative to the elongated channel between a fully open position and a fully closed position about a fixed jaw pivot axis transverse to the shaft axis. Are linked to. The elongate shaft assembly includes an axially movable closure member between a starting position corresponding to the fully open position of the anvil and an ending position corresponding to the fully closed position of the anvil. When the closure member is in the starting position, its distal end lies in a plane distally spaced from the jaw pivot axis by a distance measured along the shaft axis that is 0.090 inches or less.

Example 54-The surgical instrument of Example 53, wherein the closure member distal end lies on the plane when the closure member is in the starting position, the plane intersecting the jaw pivot axis.

Example 55-The surgical instrument of Example 53 or 54, wherein the distance is in the range of 0.010 to 0.060 inches.

Example 56-An anvil includes an anvil body and an anvil mounting portion including a pair of laterally extending anvil trunnions configured to be pivotally supported within corresponding openings of the anvil cam surface and the elongated channel. The surgical instrument of any one of Examples 53, 54 or 55, including.

Example 57-A closure member includes a closure cam surface configured to cam engage an anvil cam surface of an anvil when an axially movable distal closure tube portion is movable from a starting position to an ending position. The surgical instrument of any one of Examples 53, 54, 55 or 56 including an axially movable distal closure tube portion including.

Example 58-Elongate Shaft Assembly Operatively Coupled to Elongate Channel and Spine Assembly and Distally Closure Tube Portion Movably Supported for Axial Movement and Axial Movable A proximal closure tube assembly pivotally coupled to the surgical instrument of claim 57.

Example 59-A proximal closure tube assembly is operably interconnected with a closure system supported by a handheld housing and configured to selectively apply an axial opening and closing movement to the proximal closure tube assembly. The surgical instrument of Example 58, wherein:

Example 60-The surgical instrument of Example 58, wherein the proximal closure tube assembly is operatively interconnected with a closure system supported by a housing configured to interconnect with a robotic system. The closure system is configured to selectively apply an axial opening and closing movement to the proximal closure tube assembly.

Example 61-A surgical system including a housing operably supporting a closure system. The surgical system further includes a replaceable surgical tool assembly including an elongate shaft assembly operably and removably connectable to the housing such that the proximal closure portion of the elongate shaft assembly is axially closed from the closure system. Is configured to receive. The elongate shaft assembly defines a shaft axis. The surgical end effector is operably coupled to the elongate shaft assembly for selective articulation relative to the elongate shaft assembly about an articulation axis transverse to the shaft axis. The surgical end effector includes an elongate channel coupled to the elongate shaft assembly and configured to operatively support a surgical fastening element cartridge therein. The anvil is coupled with the elongate channel for selective pivotal movement with respect to the elongate channel about a jaw pivot axis transverse to the shaft axis. The elongate shaft assembly includes an axially movable closure member between a starting position corresponding to the fully open position of the anvil and an ending position corresponding to the fully closed position of the anvil. When the closure member is in the starting position, its distal end lies in a plane distally spaced from the jaw pivot axis by a distance measured along the shaft axis that is 0.090 inches or less.

Example 62-Surgical stapling apparatus including an elongated shaft assembly defining a shaft axis. The surgical end effector is operably coupled with the elongated shaft assembly by an articulating joint configured to facilitate selective articulation of the surgical end effector about an articulation axis transverse to the shaft axis. It The surgical end effector includes a surgical staple cartridge operatively supporting a plurality of surgical staples therein. The anvil is supported for selective pivotal movement with respect to the surgical staple cartridge between a fully open position and a closed position. The anvil includes a plurality of staple forming pockets that correspond to surgical staples within a surgical staple cartridge. The surgical stapling device is configured to engage at least the anvil when the anvil is in the closed position when the axially movable firing member is movable from the most proximal position to the most distal position. Further included is an axially movable firing member including one anvil engagement mechanism. The surgical stapling apparatus also provides a joint distance between the articulation axis and the distal end of the axially movable firing member anvil engagement mechanism when the axially movable firing member is in the most proximal position. Means for increasing the jaw opening distance between the most distal staple in the surgical staple cartridge and the corresponding one of the staple forming pockets of the anvil while minimizing is also included.

Example 63-Means for augmenting includes a closure member configured to apply a closing movement to the anvil, the closure member having a starting position corresponding to a fully open position of the second end effector jaw and a complete anvil. 63. The surgical stapling apparatus according to example 62, which is axially movable between an end position corresponding to a closed position. The distal end of the closure member ranges from 0.4 to 0.9 inches from the distal end of the anvil engagement mechanism when the closure member is in the starting position and the axially movable firing member is in the most proximal position. Spaced in the distal direction by a horizontal distance within.

Example 64-The surgical stapling apparatus according to Example 63, wherein the horizontal distance is measured along a horizontal line that is parallel to or coincides with the shaft axis.

Example 65-A closure member includes a closure cam surface configured to cam engage an cam surface of an anvil when an axially movable distal closure tube section is capable of moving from a starting position to an ending position. The surgical stapling apparatus according to example 62, 63 or 64, including an axially movable distal closure tube section.

Example 66-The surgical fastener of Examples 62, 63, 64 or 65 wherein the surgical fastening element cartridge is removably supported in an elongated channel operably connected to the elongated shaft assembly by an articulating joint. Stapling device.

Example 67-An anvil includes an anvil body and an anvil attachment portion including a pair of laterally extending anvil trunnions configured to be pivotally supported within the anvil cam surface and corresponding openings of the elongated channel. The surgical stapling apparatus according to example 66, including.

Example 68-Elongated Shaft Assembly Comprising an Axial Movable Proximal Closure Tube Assembly and a Closure Member Axial Movable Distal Closure Operatively Coupled to the Axial Movable Proximal Closure Tube Assembly The surgical stapling apparatus according to any of Examples 63, 64, 65, 66 or 67, including a tube portion.

Example 69-Axial Movable Distal Closure Tube Section Comes Into Cam Anvil Anvil Cam Surface When The Axial Movable Distal Closure Tube Section Can Move From A Starting Point To An Ending Point The surgical stapling apparatus according to example 68, including a configured closure cam surface.

Example 70-The elongated shaft assembly includes a spine assembly operably coupled to the elongated channel and movably supporting at least a portion of the proximal closure tube assembly, the proximal closure tube assembly comprising: 70. The surgical stapling apparatus according to example 68 or 69 operatively interconnecting with a closure system configured to selectively apply an axial opening and closing movement to the.

Example 71-The surgical stapling apparatus according to Example 70, wherein the closure system is supported by a handheld housing.

Example 72-A surgical stapling apparatus according to Example 70, wherein the closure system is supported by a housing operably interconnected with a robot controlled actuator.

Example 73-A surgical instrument including an elongated shaft assembly coupled with an elongated channel configured to operatively support a surgical fastening element cartridge therein. An anvil is pivotally coupled to the elongated channel for selective pivotal movement with respect to the elongated channel between a fully open position and a fully closed position about a fixed jaw pivot axis. The closure member is configured to apply a closing motion to the anvil to move the anvil between the fully open and fully closed positions as the closure member is moved from the starting position to the ending position. The surgical instrument is configured to provide additional closure movement to the anvil when the axially movable firing member is movable from the most proximal position to the most distal position within the elongated channel. Further included is an axially movable firing member having an anvil engagement mechanism. When the closure member is in the starting position and the axially movable firing member is in the most proximal position, the distal end of the closure member is distal to the distal end of the anvil engagement mechanism.

Example 74-When the closure member is in the starting position and the axially movable firing member is in the most proximal position, the distal end of the closure member is 0.4-0. The surgical instrument according to example 73, spaced distally by a horizontal distance within the range of 9 inches.

Example 75-The surgical instrument of Example 74, wherein the elongate shaft assembly defines a shaft axis and the horizontal distance is measured along a horizontal line that is parallel to or coincides with the shaft axis.

Example 76-A closure member includes a closure cam surface configured to cam engage an anvil cam surface of an anvil when an axially movable distal closure tube section is movable from a starting position to an ending position. The surgical instrument of any of Examples 73, 74 or 75, including an axially movable distal closure tube section.

Example 77-The surgical instrument of Example 76, wherein the elongate shaft assembly includes a spine assembly operably coupled to the elongate channel. A proximal closure tube assembly is movably supported for axial movement relative to the spine assembly and is pivotally coupled to the axially movable distal closure tube portion.

Example 78-The example of Example 77, wherein the proximal closure tube assembly is operatively interconnected with a closure system configured to selectively apply axial opening and closing movements to the proximal closure tube assembly. Surgical instruments.

Example 79-The surgical instrument of Example 78, wherein the closure system is supported by a handheld housing.

Example 80-The surgical instrument of Example 78, wherein the closure system is supported by a housing operably interconnected with a robot-controlled actuator.

Example 81-A surgical system including a housing operably supporting a closure system. The surgical system further includes a replaceable surgical tool assembly including an elongate shaft assembly operably and removably connectable to the housing such that the proximal closure portion of the elongate shaft assembly is axially closed from the closure system. Is configured to receive. The elongate shaft assembly defines a shaft axis. The surgical tool assembly further includes a surgical end effector operably coupled to the elongated shaft assembly for selectively articulating with respect to the elongated shaft assembly about an articulation axis transverse to the shaft axis. Including. The surgical end effector includes an elongate channel coupled to the elongate shaft assembly and configured to operatively support a surgical fastening element cartridge therein. An anvil is coupled to the elongate channel for selective pivotal movement with respect to the elongate channel between a fully open position and a fully closed position about a jaw pivot axis transverse to the shaft axis. The elongate shaft assembly includes a distal closure member operably coupled to the proximal closure portion and provides a closing motion to the anvil when the distal closure member is moved from the starting position to the ending position to provide a fully open position. It is configured to move the anvil to and from the fully closed position. The axially movable firing member is configured to impart additional closing motion to the anvil when the axially movable firing member is capable of moving from the most proximal position to the most distal position within the elongated channel. Includes at least one anvil engagement mechanism. The distal end of the distal closure member is distal to the distal end of the anvil engagement mechanism when the distal closure member is in the starting position and the axially movable firing member is in the most proximal position. ..

Example 82-A surgical instrument including a surgical end effector including a first jaw defining a first tissue contacting surface and a second jaw pivotally coupled to the first jaw. The second jaw is selectively movable about a fixed jaw pivot axis between a fully open position and a fully closed position. The second jaw includes a second tissue contacting surface that faces the first tissue contacting surface. At least one tissue locator element is on the second jaw and extends downwardly beyond the second tissue contacting surface, the first tissue contacting surface and the second tissue when the second jaw is in the fully closed position. It is configured to prevent tissue received between the contact surface and extending proximally beyond the distal end portion of the at least one tissue locator element. When the second jaw is in the fully open position, the distal end portion of each tissue locator element is positioned relative to a corresponding portion of the first tissue contacting surface to prevent a gap therebetween. When the second jaw is in the fully open position, the jaw opening angle between the first tissue contact surface and the second tissue contact surface is greater than 12.25°.

Example 83-Surgery according to example 82, wherein the distal end portion of each tissue locator element is located less than 0.750 inches from the fixed jaw pivot axis when the second jaw is in the fully closed position. Equipment.

Example 84-A first jaw includes an elongated channel configured to operably support a surgical fastening element cartridge therein and a first tissue contacting surface includes a deck surface of the surgical fastening element cartridge. The surgical instrument of Example 82 or 83.

Example 85-The surgical instrument of any of Examples 82, 83 or 84, wherein the second jaw comprises an anvil and the second tissue contacting surface comprises a fastening element forming a lower surface of a portion of the anvil.

Example 86-The surgical instrument of Example 85, wherein the anvil includes an anvil body portion and at least one tissue locator element is formed on a proximal portion of the anvil body portion.

Example 87-Surgery according to Example 82, 83, 84, 85 or 86, wherein the surgical end effector is sized to pass through the trocar cannula when the second jaw is in the fully closed position. Equipment.

Example 88-The surgical instrument of any one of Examples 82, 83, 84, 85, 86 or 87, further comprising means for applying an opening and closing movement to the second jaw.

Example 89-The surgical instrument of Example 88, wherein the means for applying the opening and closing movement comprises an axially movable closure tube. A closure tube has a closure cam surface at a distal end of the closure tube configured to cam engage a jaw cam surface of the second jaw to effect a closing motion on the second jaw, and an axially movable closure. At least one jaw opening mechanism configured to exert a jaw opening movement on the second jaw as the tube is moved proximally.

Example 90-A surgical instrument including a surgical end effector including a surgical fastening element cartridge including a cartridge body operatively supporting a plurality of surgical fastening elements therein. The cartridge body defines a tissue contacting surface from which the surgical fastening element is ejected. The anvil is pivotable relative to the surgical fastening element cartridge for selective pivotal movement relative to the surgical fastening element cartridge between a fully open position and a fully closed position about a fixed jaw pivot axis. Supported by. The anvil includes an anvil body that defines a fastening element molding surface that includes a plurality of fastening element shaping formations, each fastening element shaping formation corresponding to one of the surgical fastening elements in the surgical fastening element cartridge. To do. The fastening element molding surface faces the tissue contacting surface of the surgical fastening element cartridge. At least one tissue stop projects from the anvil body and extends downwardly beyond the fastening element forming surface to accommodate tissue received between the tissue contacting surface and the fastening element forming surface when the anvil is in the fully closed position. , Configured to prevent proximal extension beyond the distal end portion of the tissue lock. When the anvil is in the fully closed position, the distal end portion of each tissue lock is spaced from the fixed jaw pivot axis by an axial distance of less than 0.750 inches, and when the anvil is in the fully open position, the surgical The vertical distance between the most distal of the fastening elements in the cartridge and the corresponding one of the fastening element moldings on the fastening element molding surface is at least 0.900 inches.

Example 91-The surgical instrument of Example 90, wherein the jaw opening angle between the fastening element forming surface and the tissue contacting surface is greater than 12.25° when the anvil is in the fully open position.

Example 92-The surgical instrument of Examples 90 or 91, wherein the surgical end effector is sized to pass through the trocar cannula when the anvil is in the fully closed position.

Example 93-The surgical instrument of Example 90, 91, or 92 further comprising means for applying an opening and closing motion to the anvil.

Example 94-The surgical instrument of Example 93, wherein the means for applying the opening and closing movement comprises an axially movable closure tube. The axially movable closure tube includes at its distal end a closure cam surface configured to cam engage an anvil cam surface of the anvil to effect a closing motion on the anvil. At least one jaw opening mechanism is configured to impart jaw opening movement to the anvil when the axially movable closure tube is moved proximally.

Example 95-The surgical instrument of Examples 90, 91, 92, 93 or 94, wherein the surgical end effector is operably coupled to an elongated shaft assembly defining a shaft axis.

Example 96-Tissue contacting surface of a cartridge body is parallel to a shaft axis and the vertical distance is measured along a line perpendicular to the shaft axis extending from the most distal fastening element and corresponding fastening element molding. The surgical instrument of Example 95, wherein:

Example 97-Due to the anvil in the fully open position, the distal end portion of each tissue stop is positioned relative to the corresponding portion of the tissue contacting surface to prevent a gap therebetween. The surgical instrument according to example 90, 91, 92, 93, 94, 95 or 96.

Example 98-On the tissue contacting surface when the anvil is in the fully open position, with a portion of each tissue stop flush with the tissue contacting surface or extending below the tissue contacting surface. The surgical instrument according to example 97, which prevents tissue from extending proximally beyond the tissue stop.

Example 99-On the tissue contacting surface when the anvil is in the fully open position, with a portion of each tissue stop at the same height of the tissue contacting surface or extending below the tissue contacting surface. 99. The surgical instrument of Examples 90, 91, 92, 93, 94, 95, 96, 97 or 98 which prevents tissue from extending proximally beyond the tissue lock.

Example 100-A surgical system including a housing operably supporting a closure system. An interchangeable surgical tool assembly, an elongate shaft assembly operably and removably coupled to a housing such that a proximal closure portion thereof is configured to undergo axial closure movement from a closure system. It is possible and includes an elongated shaft assembly that defines a shaft axis. The surgical end effector is operably coupled to the elongate shaft assembly for selective articulation relative to the elongate shaft assembly about an articulation axis transverse to the shaft axis. The surgical end effector includes a surgical fastening element cartridge including a cartridge body operatively supporting a plurality of surgical fastening elements therein and defining a tissue contacting surface from which the surgical fastening elements are ejected. The anvil is pivotable relative to the surgical fastening element cartridge for selective pivotal movement relative to the surgical fastening element cartridge between a fully open position and a fully closed position about a fixed jaw pivot axis. Supported by. The anvil includes an anvil body that defines a fastening element molding surface that includes a plurality of fastening element shaping formations, each fastening element shaping formation corresponding to one of the surgical fastening elements in the surgical fastening element cartridge. To do. The fastening element molding surface faces the tissue contacting surface of the surgical fastening element cartridge. At least one tissue stop projects from the anvil body and extends downwardly beyond the fastening element forming surface to accommodate tissue received between the tissue contacting surface and the fastening element forming surface when the anvil is in the fully closed position. , Configured to prevent proximal extension beyond the distal end portion of the at least one tissue lock. When the anvil is in the fully closed position, the distal end portion of each tissue lock is spaced from the fixed jaw pivot axis by an axial distance of less than 0.750 inches, and when the anvil is in the fully open position, the surgical The vertical distance between the most distal of the fastening elements in the cartridge and the corresponding one of the fastening element moldings on the fastening element molding surface is at least 0.900 inches.

Example 101-The surgical instrument of Example 100, wherein the jaw opening angle between the fastening element forming surface and the tissue contacting surface is greater than 12.25° when the anvil is in the fully open position.

Example 102-The surgical instrument of Example 100 or 101, wherein the surgical end effector is sized to pass through the trocar cannula when the anvil is in the fully closed position.

Example 103-A surgical instrument including a first jaw including a pair of laterally aligned vertical slots formed in a proximal end portion of the first jaw. Each vertical slot has an open top. The second jaw is movably supported for selective pivotal movement with respect to the first jaw between a fully open position and a fully closed position. The second jaw includes a second jaw body and a pair of pivoting members that project laterally from the proximal end of the second jaw body. Each pivot member is pivotally received in a corresponding one of the vertical slots of the first jaw so that the pivot member pivots therein to cause a second jaw relative to the first jaw. Can promote the pivotal movement of. The surgical instrument operatively engages the proximal end portion of the first jaw as the second jaw moves between the fully open and fully closed positions and pivots into a corresponding vertical slot. And a retainer member configured to retain the retainer. The axially movable closure member is configured to apply an opening and closing movement to the second jaw to retain the retainer member in retention engagement with the proximal end of the first jaw.

Example 104-Example wherein each pivot member has a circular cross-sectional shape and the retainer member includes a slot cap corresponding to each vertical slot and sized to extend into the vertical slot through an open end. 103. The surgical instrument of 103. Each slot cap has an arcuate bottom configured to pivotally receive a corresponding pivot pin therein.

Example 105-The example 105, wherein each vertical slot is formed in a corresponding upright vertical wall portion of the first jaw and the retainer member includes a retainer body sized to span the vertical wall portions. Surgical instruments. The retainer member further includes a slot cap corresponding to each vertical slot and sized to extend through the open end into the vertical slot. An attachment formation is on the retainer body and is configured to correspond to each upright vertical wall portion and to be placed in a correspondingly shaped attachment opening in the upright vertical wall portion.

Example 106-The surgical instrument of Example 105, wherein the attachment formation is located proximal to the slot cap.

Example 107-Axially Movable Closure Member Slidingly Moves on Retainer Member to Provide Opening and Closing Motion to Second Jaw and Retainer Member to Proximal End Portion of First Jaw and Retainer The surgical instrument of any of Examples 103, 104, 105 or 106, including an axially movable distal closure tube portion sized to hold the mating position.

Example 108-The surgical instrument of Example 107, wherein the first jaw is operably coupled to the elongated shaft assembly.

Example 109-The surgical instrument of Example 108, wherein the elongate shaft assembly includes a spine assembly operably coupled to the first jaw. A proximal closure tube assembly is movably supported for axial movement relative to the spine assembly and is pivotally coupled to the axially movable distal closure tube portion.

Example 110-The proximal closure tube assembly according to example 109, wherein the proximal closure tube assembly is operatively interconnected with a closure system configured to selectively apply an axial opening and closing movement to the proximal closure tube assembly. Surgical instruments.

Example 111-The surgical instrument of Example 110, wherein the closure system is supported by a handheld housing.

Example 112-The surgical instrument of Example 110, wherein the closure system is supported by a housing operably interconnected with a robot-controlled actuator.

Example 113-A surgical instrument including an elongated channel configured to operably support a surgical fastening element cartridge therein. The elongate channel includes a pair of laterally aligned vertical slots formed in the proximal end portion of the elongate channel, each vertical slot including an open upper end. The anvil is movably supported for selective pivotal movement with respect to the elongated channel between a fully open position and a fully closed position. The anvil includes an anvil body and a pair of anvil trunnions that project laterally from the anvil mounting portion of the anvil body. Since each anvil trunnion is pivotally received within a corresponding vertical slot in the elongated channel, the anvil trunnion can pivot therein to facilitate pivotal movement of the anvil relative to the elongated channel. A surgical instrument is supported on the proximal end portion of the elongated channel to pivotally retain each anvil trunnion in a corresponding vertical slot as the anvil moves between the fully open and fully closed positions. And a retainer member configured as described above. An axially movable closure member is configured to apply an opening and closing motion to the anvil to retain the retainer member in retention engagement with the proximal end portion of the elongate channel.

Example 114-In example 113, wherein each anvil trunnion includes a circular cross-sectional shape and the retainer member includes a slot cap sized to extend through the open end into the vertical slot corresponding to each vertical slot. The surgical instrument described. Each slot cap has an arcuate bottom configured to pivotally receive a corresponding anvil trunnion therein.

Example 115-Surgical of Example 113, wherein each vertical slot is formed in a corresponding upright vertical wall portion of the elongated channel and the retainer member comprises a retainer body sized to span the vertical wall portions. Equipment. The retainer member further includes a slot cap corresponding to each vertical slot and sized to extend through the open end into the vertical slot. The retainer member also includes a mounting formation on the retainer body corresponding to each upright vertical wall portion and configured to be seated within a correspondingly shaped mounting opening in the upright vertical wall portion.

Example 116-The surgical instrument of Example 115, wherein the slot cap has a wedge shape configured to be inserted into the open end of the corresponding vertical slot.

Example 117-Surgical of example 113, 114, 115 or 116, wherein the retainer member is secured to the elongate channel by at least one of frictional engagement with the elongate channel, adhesive, and welding. Equipment.

Example 118-Axially Movable Closure Member Slidingly Moves on Retainer Member to Provide Opening and Closing Motion to Anvil and Retainer Member in Retaining Engagement with Proximal End Portion of Elongate Channel 118. The surgical instrument of any one of Examples 113, 114, 115, 116 or 117, including an axially movable distal closure tube portion sized accordingly.

Example 119-The surgical instrument of Examples 113, 114, 115, 116, 117 or 118, wherein the elongated channel is operably coupled to the elongated shaft assembly.

Example 120-Elongate Shaft Assembly Pivots on a Spine Assembly Operatively Connected to an Elongate Channel and a Closure Member Movably Supported for Axial Movement relative to the Spine Assembly and Axial Movable 120. The surgical instrument of Example 119, comprising a proximal closure tube assembly operably coupled.

Example 121-A surgical system including a housing operably supporting a closure system. The surgical system further includes a replaceable surgical tool assembly including an elongate shaft assembly operably and removably connectable to the housing such that the proximal closure portion of the elongate shaft assembly is axially closed from the closure system. Is configured to receive. The replaceable surgical tool assembly is an elongated channel configured to operably support a surgical fastener cartridge therein, the pair of laterally aligned vertical channels formed at a proximal end portion of the elongated channel. Further included is a surgical end effector including an elongated channel including a slot. Each vertical slot includes an open top end. The anvil is movably supported for selective pivotal movement with respect to the elongated channel between a fully open position and a fully closed position. The anvil includes an anvil body and a pair of anvil trunnions that project laterally from the anvil mounting portion of the anvil body. Each anvil trunnion is pivotally received within a corresponding vertical slot of the elongated channel such that the anvil trunnion can pivot therein to facilitate pivotal movement of the anvil relative to the elongated channel. A surgical system is supported on the proximal end portion of the elongate channel to pivotally retain each anvil trunnion in a corresponding vertical slot as the anvil moves between a fully open and a fully closed position. And a retainer member configured as described above. An axially movable closure member is configured to apply an opening and closing motion to the anvil to retain the retainer member in retention engagement with the proximal end portion of the elongate channel.

Example 122-Axially Movable Closure Member Slidingly Moves Atop The Retainer Member For Opening And Closing The Anvil And Retaining The Retainer Member In Retaining Engagement With The Proximal End Portion Of The Elongate Channel. The surgical system according to example 121, including an axially movable distal closure tube portion sized such. An elongate shaft assembly is pivotally attached to a spine assembly operably coupled to the elongate channel, and movably supported for axial movement relative to the spine assembly and axially movable to a distal closure tube section. And a proximal closure tube assembly coupled to the.

Example 123-A first jaw and a second jaw coupled to the first jaw for selective pivotal movement relative to the first jaw between a fully open position and a fully closed position. Surgical instruments including. The axially movable closure member is selectively in a closing direction for moving the second jaw from the fully open position to the fully closed position and in an axial opening direction for moving the second jaw from the fully closed position to the fully open position. It is axially movable. The axially movable closure member includes a first jaw opening mechanism configured to apply a first jaw opening movement to the second jaw. The second jaw opening mechanism is axially spaced from the first jaw opening mechanism, so that the first jaw opening mechanism causes the first jaw opening movement when the closing member moves in the axial opening direction. In addition to the second jaw, the first jaw opening mechanism stops applying the first jaw opening movement when the closure member axially moves in the axial opening direction by a predetermined axial distance, and Jaw opening mechanism applies a second jaw opening motion to the second jaw to move the second jaw to the fully open position.

Example 124-The surgical instrument of Example 123, wherein the first jaw opening mechanism is axially proximal to the second jaw opening mechanism.

Example 125-First jaw defines a central jaw axis, a first jaw opening mechanism axially spaced from the central jaw axis on its first side on the closure member, and a second jaw opening. 125. The surgical instrument of example 123 or 124, wherein the mechanism is spaced apart from the central jaw axis on the closure member on its second side opposite the first side.

Example 126-The surgical instrument of Examples 123, 124, or 125, wherein the second jaw includes a second jaw attachment portion pivotally supported on the first jaw. The second jaw attachment portion includes a second jaw cam surface on the second jaw attachment portion, the first jaw opening when the closure member is axially moved in the axial opening direction over a predetermined axial distance. The mechanism is configured to make cam contact in the axial direction. The second jaw cam surface is configured to move away from the first jaw opening mechanism as the closure member continues to move in the axial opening direction over a predetermined axial distance. The second jaw attachment portion is configured to be axially cam contacted by the second jaw opening mechanism as the closure member continues to move in the axial opening direction over a predetermined axial distance. Two jaw cam surfaces are further included.

Example 127-A closure member is axially moved from a first position corresponding to a fully closed position of a second jaw to a first intermediate axial position without applying a first jaw opening movement to the closure member. The surgical instrument of Example 126, which is axially movable in the opening direction.

Example 128-When the closure member is axially moved in the axial opening direction from the first intermediate axial position to the second intermediate axial position, the first jaw opening mechanism causes the first jaw opening movement. To the second jaw to move the second jaw relative to the first jaw over a second jaw opening angle, the surgical instrument of example 127.

Example 129-The surgical instrument of Example 128, wherein the second jaw opening angle is 10°.

Example 130-When the closure member is axially moved in the axial opening direction between the second intermediate axial position and the third intermediate axial position, the first jaw opening mechanism causes the second jaw opening mechanism to move. 130. The surgical instrument of example 128 or 129, wherein the second jaw is not moved relative to the first jaw beyond the opening angle.

Example 131-Axial movement of the closure member in the axial opening direction from the third intermediate axial position to the fourth intermediate axial position causes the second jaw opening mechanism to move the second jaw to the second jaw. The surgical instrument according to example 130, which applies two jaw opening movements.

Example 132-Axial movement of the closing member in the axial opening direction between the third intermediate axial position and the fourth intermediate axial position causes the second jaw to open the second jaw opening. The surgical instrument according to example 131, which moves relative to the first jaw to the corner.

Example 133-The surgical instrument of Example 132, wherein the second jaw opening angle is 22°.

Example 134-Axial movement of a closure member in an axial opening direction from a third intermediate axial position to a fourth intermediate axial position causes a first jaw opening mechanism to move relative to a second jaw. The surgical instrument of Examples 131, 132 or 133 which ceases to apply one jaw opening movement.

Example 135-Axial movement of the closure member in the axial opening direction from the fourth intermediate axial position to the final axial position causes the second jaw opening mechanism to move the second jaw relative to the second jaw. The surgical instrument according to example 134, which stops applying the opening movement.

Example 136-Examples 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, wherein the first jaw comprises a surgical fastening element cartridge and the second jaw comprises an anvil. The surgical instrument according to 134 or 135.

Example 137-A surgical instrument including an elongated channel configured to operably support a surgical fastening element cartridge therein. An anvil is pivotally supported on the elongate channel for selective pivotal movement with respect to the elongate channel between a fully open position and a fully closed position. The axially movable closure member is selectively movable axially in a closing direction that moves the anvil from a fully open position to a fully closed position and an axial opening direction that moves the anvil from a fully closed position to a fully open position. is there. The axially movable closure member includes a proximal jaw opening mechanism configured to apply a first jaw opening movement to the anvil. The distal jaw opening mechanism is axially spaced from the proximal jaw opening mechanism such that the proximal jaw opening mechanism anvils the first jaw opening movement when the closure member is moved in the axial opening direction. In addition, the proximal jaw opening mechanism ceases to apply the first jaw opening movement when the closure member axially moves a predetermined axial distance in the axial opening direction and the distal jaw opening mechanism A second jaw opening movement is applied to the anvil to move the anvil to the fully open position.

Example 138-First jaw opening mechanism supported in an elongated channel when a closure member is axially moved in an axial opening direction from a first intermediate axial position to a second intermediate axial position. 138. The surgical instrument of example 137, moving the anvil over a first jaw opening angle measured between the deck surface of the surgical fastening element cartridge and the fastening element shaping lower surface of the anvil.

Example 139-The surgical instrument of Example 138, wherein the first jaw opening angle is 10°.

Embodiment 140-When the closure member is axially moved in the axial opening direction between the second intermediate axial position and the third intermediate axial position, the first jaw opening mechanism causes the first jaw opening mechanism to move. The surgical instrument of example 138 or 139, wherein the anvil is not moved relative to the elongated channel beyond the opening angle.

Example 141-Axial movement of the closure member in the axial opening direction from the third intermediate axial position to the fourth intermediate axial position causes the second jaw opening mechanism to move to the first jaw opening angle. The surgical instrument of example 140, moving the anvil over a larger second jaw opening angle.

Example 142-A surgical instrument including an elongated channel configured to operably support a surgical fastening element cartridge therein. An anvil is pivotally supported on the elongate channel for selective pivotal movement with respect to the elongate channel between a fully open position and a fully closed position. Selectively axially move the axially movable distal closure tube portion into a closing direction that moves the anvil from a fully open position to a fully closed position and an axial opening direction that moves the anvil from a fully closed position to a fully open position. It is movable to. The axially movable distal closure tube includes a proximal jaw opening mechanism formed in the distal closure tube portion and configured to apply a first jaw opening movement to the anvil. A distal jaw opening feature is formed in the distal closure tube portion and axially spaced from the proximal jaw opening feature to allow the proximal jaws to move when the distal closure tube portion is moved in the axial opening direction. The opening mechanism exerts a first jaw opening movement on the anvil, and the proximal jaw opening mechanism exerts a first jaw opening movement when the distal closure tube portion axially moves a predetermined axial distance in the opening direction. The distal jaw opening mechanism applies a second jaw opening movement to the anvil to move the anvil to the fully open position.

Example 143-A first jaw and a second jaw coupled to the first jaw for selective pivotal movement relative to the first jaw between a fully open position and a fully closed position. Surgical instruments including. The closure member has a closing movement when the closure member is axially movable distally from a starting position corresponding to the fully open position of the second jaw to an end position corresponding to the fully closed position of the second jaw. To the second jaw. The closure member is further configured to move distally from the starting position an initial predetermined axial closure distance prior to applying the closure movement to the second jaw.

Example 144-The surgical instrument of Example 143, wherein the initial predetermined axial closure distance is 0.020 inches.

Example 145-Example 143 or 144, wherein the closure member is configured to move distally over a final predetermined axial closure distance after the second jaw has been moved to the fully closed position. The surgical instrument described.

Example 146-The surgical instrument of Example 145, wherein the final predetermined axial closure distance is 0.040 inches.

Example 147-Example 143, 144, 145, or 146, wherein the closure member comprises a closure cam surface configured to cam engage the jaw cam surface of the second jaw to provide a closing motion for the second jaw. The surgical instrument according to.

Example 148-Examples 143, 144, wherein the closure member further comprises means for applying an opening movement to the second jaw as the closure member axially moves proximally from the end position to the start position. 145, 146 or 147, the surgical instrument.

Example 149-Means for applying an opening movement provides a first amount of jaw opening movement as the closure member is moved axially from an end position to an intermediate axial position between an end position and a start position. 149. The surgical instrument of example 148, including a first jaw opening mechanism on a closure member configured for addition to a second jaw. A means is axially spaced from the first jaw opening mechanism to apply a second amount of jaw opening movement to the second jaw as the closure member is axially moved from the intermediate position to the starting position. Further comprising a second jaw opening mechanism on the closure member configured in.

Example 150-A surgical instrument including an elongated channel configured to operably support a surgical staple/fastening element cartridge therein. An anvil is pivotally supported on the elongate channel for selective pivotal movement with respect to the elongate channel between a fully open position and a fully closed position. The closure member applies a closing motion to the anvil when the closure member is axially movable distally from a starting position corresponding to the fully open position of the anvil to an end position corresponding to the fully closed position of the anvil. It is configured. The closure member is configured to move distally from the starting position an initial predetermined axial closure distance prior to applying the closure movement to the anvil.

Example 151-The surgical instrument of Example 150, wherein the initial predetermined axial closure distance is 0.020 inches.

Example 152-Surgery according to Example 150 or 151, wherein the closure member is configured to move distally over a final predetermined axial closure distance after the anvil has been moved to the fully closed position. Equipment.

Example 153-The surgical instrument of Example 152, wherein the final predetermined axial closure distance is 0.040 inches.

Example 154-After the closure member has moved the initial predetermined axial closure distance and before moving the final predetermined axial closure distance, the closure member is moved over an intermediate predetermined axial closure distance. 154. The surgical instrument of example 152 or 153, wherein the closure member is configured to exert a closing motion on the anvil as it moves in the distal direction.

Example 155-The surgical instrument of Example 154, wherein the intermediate predetermined axial closure distance is 0.200 inches.

Example 156-Examples 150, 151, 152, 153, wherein the closure member comprises a closure cam surface configured to cam engage an anvil cam surface on the anvil mounting portion of the anvil to impart a closing motion to the anvil. The surgical instrument according to 154 or 155.

Example 157-Examples 150, 151, 152, wherein the closure member further comprises means for applying an opening movement to the anvil as the closure member axially moves proximally from the end position to the start position. The surgical instrument of 153, 154, 155, 156 or 157.

Example 158-Means for Applying an Opening Movement A First Amount of Jaw Opening Movement When the Closure Member is Axially Moved from the End Position to an Intermediate Axial Position Between End and Start Positions 156. The surgical instrument of example 157, including a first jaw opening feature on a closure member configured to add a to the anvil. The means is axially spaced from the first jaw opening mechanism and is configured to apply a second amount of jaw opening movement to the anvil as the closure member moves axially from the intermediate axial position to the starting position. And further including a second jaw opening mechanism on the closure member.

Example 159-Surgical system including a housing operably supporting a closure system. The surgical system further includes a replaceable surgical tool assembly including an elongate shaft assembly operably and removably connectable to the housing such that the proximal closure portion of the elongate shaft assembly is axially closed from the closure system. Is configured to receive. The replaceable surgical tool assembly further includes a surgical end effector operably coupled to the elongated shaft assembly. The surgical end effector includes an elongate channel coupled to the elongate shaft assembly and configured to operatively support a surgical fastening element cartridge therein. An anvil is coupled to the elongate channel for selective pivotal movement relative to the elongate channel between a fully open position and a fully closed position. The elongated shaft assembly includes an axially movable proximal closure member configured to undergo an axial closing movement. A distal closure member is operably coupled to the proximal closure member and axially extends distally from a starting position corresponding to the fully open position of the anvil to an ending position corresponding to the fully closed position of the anvil. It is configured to exert an axial closing motion on the anvil when movable. The distal closure member is configured to move distally from the starting position an initial predetermined axial closure distance prior to applying the closure movement to the anvil.

Example 160-The surgery of Example 159, wherein the distal closure member is configured to move distally over a final predetermined axial closure distance after the anvil has been moved to the fully closed position. Equipment.

Example 161-A surgical tool assembly including a first jaw and a second jaw movable relative to the first jaw. The surgical tool assembly further includes a firing system including a firing member assembly configured to move distally from a starting position when a firing movement is applied. The firing member assembly includes a first firing member element and a second firing member element pivotally coupled to the first firing member element at a mounting joint. The second firing member element is configured to cause the firing member assembly to move from a starting position when a firing movement is applied to the firing member assembly by the second firing member element being in locking engagement with the lockout portion of the first jaw. To move between a locked position that prevents distal movement and an unlocked position that allows the firing member assembly to be advanced distally from a starting position when a firing movement is applied to the firing member assembly. It is configured. The surgical tool assembly further comprises means for preventing an unlocking load from being applied to the mounting joint when the second firing member is in the locked position and a firing motion is applied to the first firing member element. Including.

Example 162-At least one lock of a first jaw, a lockout portion configured to retentively engage a second firing member element when the second firing member element is in a locked position. The surgical tool assembly of Example 161, including an out notch.

Example 163-The surgical tool assembly of example 161 or 162 further including a biasing member on the first jaw configured to bias the second firing member element to the locked position.

Example 164-At least one first jaw engagement mechanism configured to movably receive a first firing member element in a corresponding first jaw passage and a corresponding second jaw passage. A surgical tool assembly according to any of Examples 161, 162, or 163, including at least one second jaw engagement mechanism configured to be movably received therein.

Example 165-When the firing member assembly is in the starting position, each of the first jaw engagement features is axially aligned with the corresponding first jaw passage regardless of the position of the second firing member element. And the second jaw engaging mechanism is each axially aligned with a corresponding second jaw passage, the surgical tool assembly according to example 164.

Example 166-Each of the first jaw engagement features is axially aligned with a corresponding first jaw passage when the firing member assembly is in the starting position and the second firing member element is in the locked position. 168, and wherein each of the second jaw engagement features is axially aligned with a corresponding second jaw passage.

Example 167-Examples 161, 162, 163, wherein a first jaw is configured to operably support a removable surgical component operatively supporting a movable component element therein. 164, 165 or 166. The surgical tool assembly of claim 164, 165 or 166. The moveable component element is moveable between an unfired position and a fired position. The second firing member element is configured such that the removable surgical component is supported within the first jaw and is moved from the locked position by the moveable component element when the moveable component element is in the unfired position. Has been done.

Example 168-A first jaw is operably coupled to an elongated shaft defining a shaft axis and a second firing member element is first fired about a pivot axis transverse to the shaft axis. The surgical tool assembly of any of Examples 161, 162, 163, 164, 165, 166 or 167, which is pivotable relative to the member element.

Example 169-The surgical instrument of any of Examples 161, 162, 163, 164, 165, 166, 167 or 168, wherein the first firing member element comprises a tissue cutting surface.

Example 170-Examples 161, 162, 163, 164, 165, 166, wherein the first jaw is configured to operably support a surgical staple cartridge that operably supports a sled therein. 168 or 169 surgical instrument. The sled is moveable between an unfired position and a fired position. The second firing member element is configured to be moved from the locked position by the sled when the surgical staple cartridge is supported within the first jaw and the sled is in the unfired position.

Example 171-In accordance with Examples 161, 162, 163, 164, 165, 166, 167, 168, 169 or 170, the means for preventing comprises the distal surface and the lockout surface of the first firing member element. Surgical tool assembly. The distal surface is on the proximal surface on the second firing member element such that space is provided between the distal surface and the proximal surface of the second firing member element when the second firing member is in the unlocked position. Is configured against. The proximal surface abuts the lockout surface when the second firing member element is in the locked position.

Example 172-A mounting joint comprising at least one pivot member on a second firing member element and pivotally received in a corresponding pivot hole of the first firing member element. The surgical tool assembly of Example 161, 162, 163, 164, 165, 166, 167, 168, 169, 170 or 171.

Example 173-When the second firing member is in the locked position and a firing motion is applied to the first firing member element by further including a gap between each pivot member and its corresponding pivot hole. 174. The surgical tool assembly according to example 172, wherein the unlocking load is not transmitted to the at least one pivot member.

Example 174-A stapling assembly that includes an anvil jaw and a staple cartridge jaw that includes a lockout surface. The firing member includes a distal end that includes an anvil cam portion and a channel cam portion. The firing member further includes a distal edge including a cutting member and a lockout force receiving surface. The lockout member is pivotally coupled to the distal end of the firing member by at least one pivot member. The lockout member is stapled when the staple cartridge is not installed in the staple cartridge jaws or when a partially used staple cartridge is installed in the staple cartridge jaws and a firing motion is applied to the firing member. It is configured to engage the lockout surface of the cartridge jaws to prevent advancement of the firing member. The firing member and the lockout member are configured to prevent an unlocking load from being applied to the pivot member when the lockout member is engaged with the lockout surface and a firing motion is applied to the firing member. ing.

Example 175-The stapling assembly of Example 174, wherein the staple cartridge jaws include a staple cartridge that includes a sled movable between an unfired position and a fired position. The sled is configured to engage the lockout member when the sled is in the unfired position to prevent the lockout member from moving relative to the firing member to engage the lockout surface.

Example 176-Implementation, further comprising a spring configured to bias the lockout member against the firing member in a locked configuration in the presence of a partially used staple cartridge and in the absence of a staple cartridge. The stapling assembly according to example 174 or 175.

Example 177-The stapling assembly according to Example 174, 175, or 176, wherein the firing member is configured to be substantially immobile in the vertical direction.

Example 178-A surgical fastener including a first jaw configured to operably support an unfired surgical fastening element cartridge therein. An anvil is movably supported with respect to the first jaw. The surgical fastener further includes a firing system including a firing member assembly configured to move axially between a starting position and an ending position. The firing member assembly includes a firing member including a cutting surface and a tilting element pivotally coupled to the firing member by a mounting joint. The tilting element prevents the firing member assembly from moving distally from a starting position when a firing movement is applied to the firing member assembly by the tilting element being in locking engagement with the lockout portion of the first jaw. Configured to move relative to the firing member between a locked position and an unlocked position in which the firing member assembly is distally advanceable from a starting position when a firing movement is applied to the firing member assembly. .. The firing member and the tilting element are configured to prevent an unlocking load on the mounting joint when the tilting element is in the locked position and a firing motion is applied to the firing member assembly. The surgical fastener further includes means for biasing the tilting element into a locking engagement when the unfired surgical fastening element cartridge is not operably supported within the first jaw.

Example 179-Surgical Fastening of Example 178, wherein the mounting joint includes at least one pivot member on the tilting element and pivotally received within a corresponding pivot hole of the firing member. Equipment.

Embodiment 180-By further providing a gap between each pivot member and its corresponding pivot hole, each unlocking load is increased when the tilting element is in the locked position and a firing motion is applied to the firing member assembly. The surgical fastener of example 179, which is not transmitted to the pivot member.

Although many of the surgical instrument systems described herein operate with electric motors, the surgical instrument systems described herein can operate in any suitable manner. In various cases, the surgical instrument system described herein can be operated by, for example, a manually operated trigger. In certain examples, the motors disclosed herein may include parts of a robot control system. Further, any of the end effector and/or tool assemblies disclosed herein can be utilized with robotic surgical instrument systems. For example, U.S. patent application Ser. No. 13/118,241, titled "SURGICAL STAPLING INSTRUMENTS WITH ROTATABLE STAPLE DEPLOYMENT ARRANGEMENTS", now US Pat. Is disclosed in more detail.

Although the surgical instrument system described herein is described in connection with staple deployment and deformation, the embodiments described herein are not so limited. Various embodiments are also envisioned that provide for fastening elements other than staples, such as clamps or tacks. Further, various embodiments are contemplated that utilize any suitable means for sealing tissue. For example, the end effector according to various embodiments can include an electrode configured to heat and seal tissue. Also, for example, the end effector according to certain embodiments can apply vibrational energy to seal the tissue.

The following disclosures are incorporated herein by reference in their entirety.
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Although various devices have been described herein in connection with specific embodiments, modifications and changes may be made to those embodiments. Particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. Thus, the particular features, structures, or characteristics illustrated or described in connection with one embodiment are, without limitation, all or partly combined with features, structures, or characteristics of one or more other embodiments. Good. Also, while materials have been disclosed for particular components, other materials may be used. Further, in accordance with various embodiments, a single component can be replaced with multiple components and multiple components can be replaced with a single component to perform a given function(s). May be replaced. The above description and the following claims are intended to cover all such modifications and variations.

The devices disclosed herein can be designed to be disposed of after a single use, or can be designed to be used multiple times. However, in either case, the device may be reconditioned for reuse after at least one use. Reconditioning can include, but is not limited to, any combination of device disassembly, followed by cleaning or replacement of certain parts of the device, and subsequent reassembly of the device. Specifically, reconditioning facilities and/or surgical teams may disassemble the device, clean and/or replace certain parts of the device, and then reassemble the device for subsequent use. You can Those of ordinary skill in the art will appreciate that reconditioning of a device can utilize a variety of techniques for disassembly, cleaning/replacement, and reassembly. Use of such techniques, and the resulting reconditioned device, are all within the scope of the present application.

The devices disclosed herein can be processed prior to surgery. First, new or used equipment may be obtained and cleaned if necessary. The instrument may then be sterilized. In one sterilization technique, the instrument is placed in a closed and sealed container, such as a plastic bag or a TYVEK bag. The container and instrument can then be placed in a radiation field that can penetrate the container, such as gamma rays, X-rays, and/or high energy electrons. Radiation can kill bacteria on the device and in the container. The sterilized instrument may then be stored in the sterile container. The sealed container can keep the instrument sterile until it is opened in the medical facility. The device can also be sterilized using any other technique known in the art, including, but not limited to, beta radiation, gamma radiation, ethylene oxide, hydrogen peroxide plasma, and/or water vapor.

While this invention has been described as having a representative design, the present invention may be further modified within the spirit and scope of this disclosure. Accordingly, this application is intended to cover any variations, uses, or adaptations of the present invention using its general principles.

All patents, publications, or other disclosed references, which are hereby incorporated by reference in their entirety or in part, are pre-existing definitions, statements, or other disclosures in which the incorporated material is described in this disclosure. It is intended to be incorporated herein only to the extent not inconsistent with the content. As such, and to the extent necessary, the disclosure expressly set forth herein supersedes any contradictory statements incorporated herein by reference. Any document, or portion thereof, which is hereby incorporated by reference but is inconsistent with an existing definition, description, or other disclosed document mentioned herein, shall be incorporated by reference with the incorporated document. It should be incorporated only to the extent that it does not conflict with the disclosure.

Embodiments
(1) A surgical instrument,
A surgical end effector, wherein the surgical end effector comprises:
A first jaw defining a first tissue contacting surface;
A second jaw pivotally connected to the first jaw and selectively movable about a fixed jaw pivot axis between a fully open position and a fully closed position; Joe of
A second tissue contacting surface facing the first tissue contacting surface;
At least one tissue locator element on the second jaw extending downwardly beyond the second tissue contacting surface, the first tissue when the second jaw is in the fully closed position. Configured to prevent tissue received between a contact surface and the second tissue contact surface from extending proximally beyond the distal end portion of the at least one tissue locator element, At least one tissue locator element, the distal end portion of each tissue locator element being in a corresponding portion of the first tissue contact surface when the second jaw is in the fully open position. The jaw opening between the first tissue contact surface and the second tissue contact surface when arranged to prevent a gap therebetween and the second jaw is in the fully open position. Surgical instrument with an angle greater than 12.25°.
(2) Positioning the distal end portion of each tissue locator element at a distance of less than 19.50 mm (0.750 inches) from the fixed jaw pivot axis when the second jaw is in the fully closed position. The surgical instrument according to embodiment 1, wherein:
(3) The first jaw includes an elongated channel configured to operably support a surgical fastening element cartridge therein, the first tissue contacting surface being a deck surface of the surgical fastening element cartridge. The surgical instrument according to embodiment 1, comprising:
(4) The surgical instrument of embodiment 3, wherein the second jaw comprises an anvil and the second tissue contacting surface comprises a fastening element shaping lower surface of a portion of the anvil.
(5) The surgical instrument of embodiment 4, wherein the anvil includes an anvil body portion and the at least one tissue locator element is formed on a proximal portion of the anvil body portion.

(6) The surgical instrument according to embodiment 1, wherein the surgical end effector is sized to pass through the trocar cannula when the second jaw is in the fully closed position.
(7) The surgical instrument according to embodiment 1, further comprising means for applying an opening/closing motion to the second jaw.
(8) The means for applying the opening/closing motion includes an axially movable closing tube, and the axially movable closing tube includes:
A closure cam surface at the distal end of the axially movable closure tube configured to cam engage a jaw cam surface of the second jaw to effect a closing movement on the second jaw;
At least one jaw opening mechanism configured to exert a jaw opening movement on the second jaw when the axially movable closure tube is moved proximally. Surgical instruments.
(9) A surgical instrument,
A surgical end effector, wherein the surgical end effector comprises:
A surgical fastening element cartridge having a cartridge body operatively supporting a plurality of surgical fastening elements therein, the cartridge body defining a tissue contacting surface from which the surgical fastening elements are ejected. Fastening element cartridge,
Pivotable relative to the surgical fastening element cartridge for selective pivotal movement relative to the surgical fastening element cartridge between a fully open position and a fully closed position about a fixed jaw pivot axis. A supported anvil, the anvil comprising:
An anvil body defining a fastening element molding surface comprising a plurality of fastening element moldings, each fastening element molding forming on one of the surgical fastening elements in the surgical fastening element cartridge. Correspondingly, the fastening element shaping surface faces the tissue contacting surface of the surgical fastening element cartridge;
At least one tissue catch projecting from the anvil body and extending downwardly beyond the fastening element forming surface, the tissue contacting surface and the fastening element forming surface when the anvil is in the fully closed position; At least one tissue lock configured to prevent proximally extending tissue received between the distal end portion of the at least one tissue lock. , When the anvil is in the fully closed position, the distal end portion of each tissue stop is spaced from the fixed jaw pivot axis by an axial distance less than 0.750 inches. A distalmost one of the fastening elements in the surgical cartridge and a corresponding one of the fastening element moldings on the fastening element shaping surface when the anvil is in the fully open position. A surgical instrument having a vertical distance between at least 22.86 mm (0.900 inches).
(10) The surgical instrument according to embodiment 9, wherein the jaw opening angle between the fastening element forming surface and the tissue contacting surface is greater than 12.25° when the anvil is in the fully open position.

(11) The surgical instrument of embodiment 9 wherein the surgical end effector is sized to pass through the trocar cannula when the anvil is in the fully closed position.
(12) The surgical instrument according to embodiment 9, further comprising means for applying an opening/closing motion to the anvil.
(13) The means for applying the opening/closing motion includes an axially movable closing tube, and the axially movable closing tube includes:
A closure cam surface at the distal end of the axially movable closure tube configured to cam engage anvil cam surface of the anvil to exert a closing motion on the anvil;
13. The surgical instrument of claim 12, further comprising: at least one jaw opening mechanism configured to exert a jaw opening movement on the anvil when the axially movable closure tube is moved proximally. ..
(14) The surgical instrument of embodiment 9, wherein the surgical end effector is operably coupled to an elongated shaft assembly defining a shaft axis.
(15) A line perpendicular to the shaft axis, wherein the tissue contacting surface of the cartridge body is parallel to the shaft axis, and the vertical distance extends from the most distal fastening element and the corresponding fastening element molding. The surgical instrument according to embodiment 14, measured along.

(16) When the anvil is in the fully open position, the distal end portions of each of the tissue locks are positioned relative to corresponding portions of the tissue contacting surface to prevent a gap therebetween. The surgical instrument according to embodiment 9, wherein:
(17) When the anvil is in the completely open position, a part of each of the tissue locking portions is at the same height as the tissue contacting surface or extends below the tissue contacting surface, The surgical instrument according to embodiment 9, which prevents tissue on the tissue contacting surface from extending proximally beyond the tissue stop.
(18) A surgical system,
A housing operably supporting the closure system;
A replaceable surgical tool assembly, the replaceable surgical tool assembly comprising:
An elongate shaft assembly operably and removably connectable to the housing, the proximal closure portion thereof being configured to undergo an axial closing movement from the closure system, the elongate shaft assembly defining the shaft axis. Defining an elongated shaft assembly,
A surgical end effector operably coupled to the elongate shaft assembly for selectively articulating with respect to the elongate shaft assembly about an articulation axis transverse to the shaft axis. The surgical end effector is
A surgical fastening element cartridge having a cartridge body operatively supporting a plurality of surgical fastening elements therein, the cartridge body defining a tissue contacting surface from which the surgical fastening elements are ejected. Fastening element cartridge,
Pivotable relative to the surgical fastening element cartridge for selective pivotal movement relative to the surgical fastening element cartridge between a fully open position and a fully closed position about a fixed jaw pivot axis. A supported anvil, the anvil comprising:
An anvil body defining a fastening element molding surface comprising a plurality of fastening element moldings, each fastening element molding forming on one of the surgical fastening elements in the surgical fastening element cartridge. Correspondingly, the fastening element shaping surface faces the tissue contacting surface of the surgical fastening element cartridge;
At least one tissue catch projecting from the anvil body and extending downwardly beyond the fastening element forming surface, the tissue contacting surface and the fastening element forming surface when the anvil is in the fully closed position; At least one tissue lock configured to prevent proximally extending tissue received between the distal end portion of the at least one tissue lock. , When the anvil is in the fully closed position, the distal end portion of each tissue stop is spaced from the fixed jaw pivot axis by an axial distance less than 0.750 inches. A distalmost one of the fastening elements in the surgical cartridge and a corresponding one of the fastening element moldings on the fastening element shaping surface when the anvil is in the fully open position. A surgical system having a vertical distance between at least 22.86 mm (0.900 inches).
(19) The surgical system according to embodiment 18, wherein the jaw opening angle between the fastening element forming surface and the tissue contacting surface is greater than 12.25° when the anvil is in the fully open position.
(20) The surgical system according to embodiment 18, wherein the surgical end effector is sized to pass through the trocar cannula when the anvil is in the fully closed position.

Claims (20)

A surgical instrument,
A surgical end effector, wherein the surgical end effector comprises:
A first jaw defining a first tissue contacting surface;
A second jaw pivotally connected to the first jaw and selectively movable about a fixed jaw pivot axis between a fully open position and a fully closed position; Joe of
A second tissue contacting surface facing the first tissue contacting surface;
At least one tissue locator element on the second jaw extending downwardly beyond the second tissue contacting surface, the first tissue when the second jaw is in the fully closed position. Configured to prevent tissue received between a contact surface and the second tissue contact surface from extending proximally beyond the distal end portion of the at least one tissue locator element, At least one tissue locator element, the distal end portion of each tissue locator element being in a corresponding portion of the first tissue contact surface when the second jaw is in the fully open position. The jaw opening between the first tissue contact surface and the second tissue contact surface when arranged to prevent a gap therebetween and the second jaw is in the fully open position. Surgical instrument with an angle greater than 12.25°. The distal end portion of each tissue locator element is located less than 0.750 inches from the fixed jaw pivot axis when the second jaw is in the fully closed position. Item 2. The surgical instrument according to Item 1. The first jaw includes an elongated channel configured to operatively support a surgical fastening element cartridge therein, the first tissue contacting surface including a deck surface of the surgical fastening element cartridge. The surgical instrument according to claim 1. The surgical instrument of claim 3, wherein the second jaw comprises an anvil and the second tissue contacting surface comprises a fastening element shaping lower surface of a portion of the anvil. The surgical instrument of claim 4, wherein the anvil includes an anvil body portion and the at least one tissue locator element is formed on a proximal portion of the anvil body portion. The surgical instrument of claim 1, wherein the surgical end effector is sized to pass through a trocar cannula when the second jaw is in the fully closed position. The surgical instrument of claim 1, further comprising means for applying an opening and closing movement to the second jaw. The means for applying the opening and closing movement includes an axially movable closure tube, the axially movable closure tube comprising:
A closure cam surface at the distal end of the axially movable closure tube configured to cam engage a jaw cam surface of the second jaw to effect a closing movement on the second jaw;
8. At least one jaw opening mechanism configured to exert a jaw opening movement on the second jaw when the axially movable closure tube is moved proximally. Surgical instruments. A surgical instrument,
A surgical end effector, wherein the surgical end effector comprises:
A surgical fastening element cartridge having a cartridge body operatively supporting a plurality of surgical fastening elements therein, the cartridge body defining a tissue contacting surface from which the surgical fastening elements are ejected. Fastening element cartridge,
Pivotable relative to the surgical fastening element cartridge for selective pivotal movement relative to the surgical fastening element cartridge between a fully open position and a fully closed position about a fixed jaw pivot axis. A supported anvil, the anvil comprising:
An anvil body defining a fastening element molding surface comprising a plurality of fastening element moldings, each fastening element molding forming on one of the surgical fastening elements in the surgical fastening element cartridge. Correspondingly, the fastening element shaping surface faces the tissue contacting surface of the surgical fastening element cartridge;
At least one tissue catch projecting from the anvil body and extending downwardly beyond the fastening element forming surface, the tissue contacting surface and the fastening element forming surface when the anvil is in the fully closed position; At least one tissue lock configured to prevent proximally extending tissue received between the distal end portion of the at least one tissue lock. , When the anvil is in the fully closed position, the distal end portion of each tissue stop is spaced from the fixed jaw pivot axis by an axial distance less than 0.750 inches. A distalmost one of the fastening elements in the surgical cartridge and a corresponding one of the fastening element moldings on the fastening element shaping surface when the anvil is in the fully open position. A surgical instrument having a vertical distance between at least 22.86 mm (0.900 inches). The surgical instrument of claim 9, wherein the jaw opening angle between the fastening element forming surface and the tissue contact surface is greater than 12.25° when the anvil is in the fully open position. The surgical instrument of claim 9, wherein the surgical end effector is sized to pass through a trocar cannula when the anvil is in the fully closed position. The surgical instrument of claim 9, further comprising means for applying an opening and closing motion to the anvil. The means for applying the opening and closing movement includes an axially movable closure tube, the axially movable closure tube comprising:
A closure cam surface at the distal end of the axially movable closure tube configured to cam engage anvil cam surface of the anvil to exert a closing motion on the anvil;
13. The surgical instrument of claim 12, including at least one jaw opening mechanism configured to exert a jaw opening movement on the anvil when the axially movable closure tube is moved proximally. .. The surgical instrument of claim 9, wherein the surgical end effector is operably coupled to an elongated shaft assembly that defines a shaft axis. Along the line perpendicular to the shaft axis, wherein the tissue contacting surface of the cartridge body is parallel to the shaft axis and the vertical distance extends from the most distal fastening element and the corresponding fastening element molding. The surgical instrument of claim 14, wherein the surgical instrument is measured. When the anvil is in the fully open position, the distal end portion of each tissue stop is positioned relative to a corresponding portion of the tissue contacting surface to prevent a gap therebetween. The surgical instrument according to claim 9. When the anvil is in the fully open position, a portion of each tissue stop is flush with the tissue contacting surface or extends below the tissue contacting surface to provide the tissue contacting surface. The surgical instrument according to claim 9, which prevents the upper tissue from extending proximally beyond the tissue stop. A surgical system,
A housing operably supporting the closure system;
A replaceable surgical tool assembly, the replaceable surgical tool assembly comprising:
An elongate shaft assembly operably and removably connectable to the housing, the proximal closure portion thereof being configured to undergo an axial closing movement from the closure system, the elongate shaft assembly defining the shaft axis. Defining an elongated shaft assembly,
A surgical end effector operably coupled to the elongate shaft assembly for selectively articulating with respect to the elongate shaft assembly about an articulation axis transverse to the shaft axis. The surgical end effector is
A surgical fastening element cartridge having a cartridge body operatively supporting a plurality of surgical fastening elements therein, the cartridge body defining a tissue contacting surface from which the surgical fastening elements are ejected. Fastening element cartridge,
Pivotable relative to the surgical fastening element cartridge for selective pivotal movement relative to the surgical fastening element cartridge between a fully open position and a fully closed position about a fixed jaw pivot axis. A supported anvil, the anvil comprising:
An anvil body defining a fastening element molding surface comprising a plurality of fastening element moldings, each fastening element molding forming on one of the surgical fastening elements in the surgical fastening element cartridge. Correspondingly, the fastening element shaping surface faces the tissue contacting surface of the surgical fastening element cartridge;
At least one tissue catch projecting from the anvil body and extending downwardly beyond the fastening element forming surface, the tissue contacting surface and the fastening element forming surface when the anvil is in the fully closed position; At least one tissue lock configured to prevent proximally extending tissue received between the distal end portion of the at least one tissue lock. , When the anvil is in the fully closed position, the distal end portion of each tissue stop is spaced from the fixed jaw pivot axis by an axial distance less than 0.750 inches. A distalmost one of the fastening elements in the surgical cartridge and a corresponding one of the fastening element moldings on the fastening element shaping surface when the anvil is in the fully open position. A surgical system having a vertical distance between at least 22.86 mm (0.900 inches). 19. The surgical system of claim 18, wherein the jaw opening angle between the fastening element forming surface and the tissue contact surface is greater than 12.25[deg.] when the anvil is in the fully open position. 19. The surgical system of claim 18, wherein the surgical end effector is sized to pass through the trocar cannula when the anvil is in the fully closed position.

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