BR112017027340B1 - SURGICAL INSTRUMENT - Google Patents

Abstract

SURGICAL END ACTUATORS WITH DUAL CAM ACTUATED JAW CLOSURE CAPABILITIES. A surgical instrument comprising an elongated drive shaft assembly defining a drive shaft geometric axis. An end actuator mounting assembly can be movably coupled to the elongated driveshaft assembly for selective pivoting about a pivot axis that is transverse to the driveshaft axis. The first and second jaws can be movably coupled to the end actuator mounting assembly such that each of the first and second jaws are movable with respect to each other and the axis of the drive shaft around a pivot shaft. common between an open position and closed positions. The first and second jaws can close at different closing speeds by applying simultaneous closing movements to them.

Description

BACKGROUND

[001] The present invention relates to surgical instruments and, in various embodiments, surgical stapling and cutting instruments and staple cartridges for use therewith.

[002] A stapling instrument may include a pair of collaborating elongated claw members, each claw member being adapted to be inserted into a patient and positioned relative to the tissue to be stapled and/or cut. In various embodiments, one of the claw members can support a staple cartridge with at least two laterally spaced rows of staples contained therein, and the other claw member can support an anvil with staple forming pockets aligned with the rows of staples. in the staple cartridge. In general, the stapling apparatus may additionally include a pusher bar and knife blade that are slidable with respect to the gripper member to sequentially eject staples from the staple cartridge through cam surfaces on the drive bar and/or cam surfaces. on a wedge slider that is pushed by the push rod. In at least one embodiment, the cam surfaces may be configured to activate a plurality of staple drivers carried by the cartridge and associated with the staples to push the staples against the anvil and form laterally spaced rows of deformed staples in the tissue trapped between the staples. claw limbs. In at least one embodiment, the knife blade can follow the cam surfaces and cut the fabric along a line between the staple rows.

[003] The foregoing discussion is intended only to illustrate various aspects of the related art in the field of the invention at present and should not be taken as a denial of the scope of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

[004] Several characteristics of the modalities described here, along with their advantages, can be understood according to the description presented below, considered in conjunction with the attached drawings, as follows:

[005] Figure 1 is a perspective view of an embodiment of a surgical instrument and an elongated drive shaft assembly;

[006] Figure 2 is an exploded assembly view of the handle or housing portion of the surgical instrument of Figure 1;

[007] Figure 3 is an exploded assembly view of a portion of an elongated driveshaft assembly;

[008] Figure 4 is a further exploded assembly view of another portion of the elongated driveshaft assembly of Figure 3;

[009] Figure 5 is an exploded assembly view of a portion of a surgical end actuator embodiment and a closure sleeve embodiment;

[0010] Figure 6 is a partial cross-sectional view of a portion of the surgical end actuator and closure sleeve arrangement of Figure 5;

[0011] Figure 7 is a perspective view of the arrangement of the surgical end actuator and the closing sleeve of Figures 5 and 6, with the anvil thereof in an open position or configuration;

[0012] Figure 8 is another perspective view of the arrangement of the surgical end actuator and the closing sleeve of Figures 5 to 7, with the anvil thereof in a closed position or configuration;

[0013] Figure 9 is a perspective view of one embodiment of a surgical end actuator and drive shaft assembly with some portions thereof omitted for clarity;

[0014] Figure 10 is a top view of portions of the surgical end actuator embodiment and elongated drive shaft assembly of Figure 9, with the surgical end actuator in a pivoted position or configuration;

[0015] Figure 11 is a partial exploded assembly view of portions of the surgical end actuator embodiment and elongated drive shaft assembly of Figures 9 and 10;

[0016] Figure 12 is an exploded perspective assembly view of the surgical end actuator and elongated drive shaft assembly of Figures 9 to 11;

[0017] Figure 13 is a perspective view of portions of the surgical end actuator embodiment and elongated drive shaft assembly of Figures 9 to 12, with the surgical end actuator in a pivoted position or configuration;

[0018] Figure 14 is a top view of portions of the surgical end actuator embodiment and the elongated drive shaft assembly of Figures 9 to 13, with the surgical end actuator in an articulated configuration and with some of its components shown in cross section for clarity;

[0019] Figure 15 is a perspective view of a portion of another embodiment of the elongated drive shaft assembly;

[0020] Figure 16 is another perspective view of the embodiment of the elongated drive shaft assembly of Figure 15, with the closure tube and closure sleeve omitted for clarity;

[0021] Figure 17 is a top view of portions of the elongated driveshaft assembly embodiment of Figures 15 and 16;

[0022] Figure 18 is a side elevation and cross-sectional view of the elongated drive shaft assembly embodiment of Figures 15 to 17, with a surgical staple cartridge mounted on the surgical end actuator portion;

[0023] Figure 19 is another side elevation and cross-sectional view of the elongated drive shaft assembly of Figures 15 to 18, with a surgical staple cartridge mounted on the surgical end actuator portion;

[0024] Figure 20 is a top view of portions of the surgical end actuator and elongated drive shaft assembly of Figures 15 to 19, with the surgical end actuator in a pivoted position or configuration;

[0025] Figure 20A is a side elevation view of a portion of another embodiment of the surgical end actuator and closure sleeve;

[0026] Figure 21 is a perspective view of another embodiment of the surgical end actuator and elongated drive shaft assembly with some of its portions omitted for clarity;

[0027] Figure 22 is an exploded assembly view of portions of the surgical end actuator embodiment and elongated drive shaft assembly of Figure 21;

[0028] Figure 23 is a top view of portions of the surgical end actuator embodiment and elongated drive shaft assembly of Figures 21 and 22;

[0029] Figure 24 is another top view of portions of the surgical end actuator embodiment and elongated drive shaft assembly of Figures 21 to 23 with some portions thereof omitted for clarity;

[0030] Figure 25 is a further top view of portions of the surgical end actuator embodiment and elongated drive shaft assembly of Figures 21 to 24, with the surgical end actuator in a pivoted position or configuration;

[0031] Figure 26 is an exploded perspective view of a portion of another embodiment of the elongated driveshaft assembly;

[0032] Figure 27 is an exploded assembly view of portions of another embodiment of the surgical end actuator and elongated drive shaft assembly;

[0033] Figure 28 is a partial perspective view of a portion of the elongated driveshaft assembly embodiment of Figure 27, with portions thereof omitted for clarity;

[0034] Figure 29 is another partial perspective view of portions of the elongated driveshaft assembly embodiment of Figures 27 and 28, with various portions omitted for clarity;

[0035] Figure 30 is another partial perspective view of portions of the elongated driveshaft assembly embodiment of Figures 27 to 29 with some portions thereof omitted for clarity;

[0036] Figure 31 is a top view of portions of the surgical end actuator embodiment and elongated drive shaft assembly of Figures 27 to 30 with some portions thereof omitted for clarity;

[0037] Figure 32 is another top view of portions of the surgical end actuator embodiment and the elongated drive shaft assembly of Figures 27 to 31 with some of its portions omitted for clarity and with the surgical end actuator in an articulated position or configuration;

[0038] Figure 33 is a side elevation view of portions of the surgical end actuator embodiment and drive shaft assembly of Figures 27 to 32 with some of its portions omitted for clarity;

[0039] Figure 34 is a perspective view of portions of the surgical end actuator embodiment and elongated drive shaft assembly of Figures 27 to 33 with some portions thereof omitted for clarity;

[0040] Figure 35 is another partial perspective view of portions of the surgical end actuator embodiment and elongated drive shaft assembly of Figures 27 to 34 with some portions thereof omitted for clarity;

[0041] Figure 36 is an exploded assembly view of portions of one embodiment of a set of distal firing bars and embodiments of lateral load-bearing members;

[0042] Figure 37 is a perspective view of the set of distal firing bars and lateral load-bearing members of Figure 36;

[0043] Figure 38 is an enlarged cross-sectional view of portions of the set of distal firing bars and lateral load-bearing members of Figures 36 and 37;

[0044] Figure 39 is another cross-sectional view of the set of distal firing bars and lateral load-bearing members of Figures 36 to 38;

[0045] Figure 40 is a side elevation view of a portion of an embodiment of the distal firing bar assembly attached to an embodiment of the firing member;

[0046] Figure 41 is a top view of a portion of the distal firing bar assembly embodiment and the firing member embodiment of Figure 40;

[0047] Figure 42 is a cross-sectional view of a portion of the embodiment of the set of distal firing bars of Figures 40 and 41, with lateral load-bearing members seated thereon and with the embodiment of the set of firing bars distal firing in position or flexed configuration;

[0048] Figure 43 is a perspective view of the embodiment of the set of distal firing bars and the embodiment of the lateral load-bearing members of Figure 42;

[0049] Figure 44 is a perspective view of portions of another embodiment of the surgical end actuator and the embodiment of the elongated drive shaft assembly, with their portions omitted for clarity and with the surgical end actuator in a position or hinged configuration;

[0050] Figure 45 is a top view of the surgical end actuator embodiment and the elongated drive shaft assembly embodiment of Figure 44;

[0051] Figure 46 is another top view of the surgical end actuator embodiment and the elongated drive shaft assembly embodiment of Figure 45, with pivot link portions shown in cross section;

[0052] Figure 47 is a partial perspective view of portions of another embodiment of the surgical end actuator and embodiment of the elongated drive shaft assembly with some of their portions omitted for clarity;

[0053] Figure 48 is a top view of portions of the surgical end actuator embodiment and the elongated driveshaft assembly embodiment of Figure 47 with some portions thereof omitted for clarity;

[0054] Figure 49 is another top view of the surgical end actuator embodiment and the elongated drive shaft assembly embodiment of Figure 48;

[0055] Figure 50 is a top perspective view of portions of the surgical end actuator embodiment and the elongated drive shaft assembly embodiment of Figures 47 to 49 with some of their portions omitted for clarity and the surgical end in a hinged position or configuration;

[0056] Figure 51 is a further top perspective view of portions of the surgical end actuator embodiment and the elongated drive shaft assembly embodiment of Figure 50;

[0057] Figure 52 is an enlarged perspective view of portions of the surgical end actuator embodiment and the elongated drive shaft assembly embodiment of Figure 51;

[0058] Figure 53 is a top view of portions of another embodiment of the surgical end actuator and the embodiment of the elongated drive shaft assembly with some of its portions omitted for clarity and illustrating the surgical end actuator in a position or non-hinged configuration and in a hinged position or configuration;

[0059] Figure 54 is a top view of a portion of the elongated drive shaft assembly embodiment of Figure 53, with the pivot system in a neutral or non-articulated position or configuration, and with portions of the drive shaft assembly elongated trigger omitted for clarity;

[0060] Figure 55 is another top view of a portion of the elongated driveshaft assembly embodiment of Figure 54, with the pivot system in a first position or pivotal configuration;

[0061] Figure 56 is another top view of a portion of the elongated driveshaft assembly embodiment of Figures 54 and 55, with the linkage system in a second position or pivotal configuration;

[0062] Figure 57 is a partial perspective view of other portions of the embodiment of the elongated drive shaft assembly of Figures 53 to 56 and portions of the embodiment of the surgical end actuator in a non-articulated position or configuration with some of its portions omitted for clarity;

[0063] Figure 58 is another partial perspective view of the surgical end actuator embodiment and the elongated drive shaft assembly embodiment of Figure 57 with some portions thereof omitted for clarity;

[0064] Figure 59 is a top view of a portion of another embodiment of the elongated driveshaft assembly with some portions thereof omitted for clarity;

[0065] Figure 60 is a top view of another embodiment of the articulation system in a neutral or non-articulated position;

[0066] Figure 61 is a top view of an embodiment of the drive articulation disk of the articulation system of Figure 60;

[0067] Figure 62 is a top view of an embodiment of the driven pivot disk of the pivot system of Figure 60;

[0068] Figure 63 is another top view of the embodiment of the pivot system of Figure 60 in a position or configuration after a pivot control motion is applied thereto;

[0069] Figure 64 is another top view of the embodiment of the pivot system of Figure 63 in a first position or pivoted configuration;

[0070] Figure 65 is another top view of the embodiment of the pivot system of Figures 63 and 64 in a pivoted position or configuration;

[0071] Figure 66 is a perspective view of another embodiment of the surgical end actuator and the closing sleeve with the same claws in a closed position or configuration;

[0072] Figure 67 is another perspective view of the embodiment of the surgical end actuator and closing sleeve of Figure 66 with its claws in an open position or configuration;

[0073] Figure 68 is a side elevation view of the surgical end actuator and closing sleeve embodiment of Figures 66 and 67 with the closing jaws shown in cross-section and the same jaws in an open position or configuration;

[0074] Figure 69 is a side elevation view of the surgical end actuator and closing sleeve embodiment of Figures 66 to 68 shown in cross section and with the same claws in an open position or configuration;

[0075] Figure 70 is an exploded assembly view of the surgical end actuator and closure sleeve embodiment of Figures 66 to 69;

[0076] Figure 71 is an exploded assembly view of another embodiment of the surgical end actuator and closure sleeve;

[0077] Figure 72 is a perspective view of another embodiment of the surgical end actuator and closing sleeve with the same claws in an open position or configuration;

[0078] Figure 73 is another perspective view of the embodiment of the surgical end actuator and closing sleeve of Figure 72 with its claws in a closed position or configuration;

[0079] Figure 74 is an exploded perspective assembly view of the surgical end actuator and closure sleeve embodiment of Figures 72 and 73;

[0080] Figure 75 is a side elevation view of the surgical end actuator embodiment and the closing sleeve of Figures 72 to 74, with its claws in a closed position or configuration;

[0081] Figure 76 is a rear perspective view of the surgical end actuator embodiment of Figures 72 to 75 with the embodiment of the closing claws thereof shown in imaginary lines for clarity;

[0082] Figure 77 is a side cross-sectional view of the surgical end actuator and closing sleeve embodiment of Figures 72 to 76 with its claws in a closed position or configuration;

[0083] Figure 78 is another side cross-sectional view including one of the cam plates of the surgical end actuator embodiment and closing sleeve of Figures 72 to 77 with its claws in a closed position or configuration;

[0084] Figure 79 is another side cross-sectional view including one of the cam plates of the surgical end actuator embodiment and closing sleeve of Figures 72 to 78 with its claws in an open position or configuration;

[0085] Figure 80 is a partial perspective view of another embodiment of the surgical end actuator and closure sleeve with the jaws thereof in an open position or configuration;

[0086] Figure 81 is a partial perspective view of the surgical end actuator and closing sleeve embodiment of Figure 80 with the same claws in a closed position or configuration;

[0087] Figure 82 is an exploded perspective assembly view of the surgical end actuator and closure sleeve embodiment of Figures 80 and 81;

[0088] Figure 83 is a side elevation view of the surgical end actuator embodiment and the closing sleeve of Figures 80 to 82 with its claws in a closed position or configuration;

[0089] Figure 84 is a side elevation view of the surgical end actuator and closure sleeve embodiment of Figures 80 to 83 with a portion of the closure sleeve shown in cross-section and with the claws thereof in a position or configuration open;

[0090] Figure 85 is an exploded perspective assembly view of another embodiment of the surgical end actuator and closure sleeve;

[0091] Figure 86 is a side elevation view of the surgical end actuator and closing sleeve embodiment of Figure 85 with its claws in a closed position or configuration;

[0092] Figure 87 is a side elevation view of the surgical end actuator and closure sleeve embodiment of Figures 85 and 86 with the jaws thereof in an open position or configuration with a portion of the closure sleeve shown in cross section ;

[0093] Figure 88 is a perspective view of a portion of another embodiment of the elongated drive shaft assembly;

[0094] Figure 89 is another perspective view of the embodiment of the elongated drive shaft assembly of Figure 88 with some of its components omitted for clarity;

[0095] Figure 90 is another perspective view of the elongated drive shaft assembly of Figures 88 and 89 with the surgical end actuator in an articulated position or configuration;

[0096] Figure 91 is an exploded assembly view of the elongated drive shaft assembly of Figures 88 to 90;

[0097] Figure 92 is a top view of the elongated drive shaft assembly of Figures 88 to 91 with some components omitted for clarity and the surgical end actuator thereof articulated in one direction;

[0098] Figure 93 is another top view of the elongated drive shaft assembly of Figures 88 to 92 with some of its components omitted for clarity and with the surgical end actuator pivoted in another direction;

[0099] Figure 94 is a perspective view of a cartridge embodiment of surgical staples; and

[00100] Figure 95 is a perspective view of another embodiment of surgical staple cartridge.

[00101] Matching reference characters indicate matching parts across the various views. The exemplifications described herein illustrate various embodiments of the invention, in one form, and such exemplifications are not to be considered as limiting the scope of the invention in any way.

DETAILED DESCRIPTION

[00102] The applicant for this application holds the following patent applications that were filed on the same date as this application, and which are each incorporated herein by reference in their respective entireties:

[00103] - US patent application serial number, entitled "SURGICAL END EFFECTORS WITH POSITIVE JAW OPENING ARRANGEMENTS", attorney's document number END7675USNP/150110;

[00104] - US patent application serial number, entitled "SURGICAL STAPLING INSTRUMENTS WITH LOCKOUT ARRANGEMENTS FOR PREVENTING FIRING SYSTEM ACTUATION WHEN A CARTRIDGE IS SPENT OR MISSING", attorney's document number END7676USNP/150111;

[00105] - US patent application serial number, entitled "MOVABLE FIRING BEAM SUPPORT ARRANGEMENTS FOR ARTICULATABLE SURGICAL INSTRUMENTS", attorney's document number END7674USNP/150109;

[00106] - US patent application serial number, entitled "ARTICULATABLE SURGICAL INSTRUMENTS WITH COMPOSITE FIRING BEAM STRUCTURES WITH CENTER FIRING SUPPORT MEMBER FOR ARTICULATION SUPPORT", attorney's document number END7673USNP/150108;

[00107] - US patent application serial number, entitled "DUAL ARTICULATION DRIVE SYSTEM ARRANGEMENTS FOR ARTICULATABLE SURGICAL INSTRUMENTS", attorney's document number END7672USNP/150107; and

[00108] - US patent application serial number, entitled "PUSH/PULL ARTICULATION DRIVE SYSTEMS FOR ARTICULATABLE SURGICAL INSTRUMENTS", attorney's document number END7671USNP/150106.

[00109] The applicant for this application holds the following patent applications that were filed on March 6, 2015, and which are each incorporated herein by reference in their respective entireties:

[00110] - US Patent Application Serial No. 14/640,746 entitled "POWERED SURGICAL INSTRUMENT";

[00111] - US patent application serial number 14/640,795, entitled "MULTIPLE LEVEL THRESHOLDS TO MODIFY OPERATION OF POWERED SURGICAL INSTRUMENTS";

[00112] - US patent application serial number 14/640,832, entitled "ADAPTIVE TISSUE COMPRESSION TECHNIQUES TO ADJUST CLOSURE RATES FOR MULTIPLE TISSUE TYPES", attorney's document number END7557USNP/140482;

[00113] - US patent application serial number 14/640,935, entitled "OVERLAID MULTI SENSOR RADIO FREQUENCY (RF) ELECTRODE SYSTEM TO MEASURE TISSUE COMPRESSION";

[00114] - US patent application serial number 14/640,831, entitled "MONITORING SPEED CONTROL AND PRECISION INCREMENTING OF MOTOR FOR POWERED SURGICAL INSTRUMENTS";

[00115] - US patent application serial number 14/640,859, entitled "TIME DEPENDENT EVALUATION OF SENSOR DATA TO DETERMINE STABILITY, CREEP, AND VISCOELASTIC ELEMENTS OF MEASURES";

[00116] - US Patent Application Serial No. 14/640,817, entitled "INTERACTIVE FEEDBACK SYSTEM FOR POWERED SURGICAL INSTRUMENTS";

[00117] - US patent application serial number 14/640,844, entitled "CONTROL TECHNIQUES AND SUB-PROCESSOR CONTAINED WITHIN MODULAR SHAFT WITH SELECT CONTROL PROCESSING FROM HANDLE";

[00118] - US Patent Application Serial No. 14/640,837, entitled "SMART SENSORS WITH LOCAL SIGNAL PROCESSING";

[00119] - US patent application serial number 14/640,765, entitled "SYSTEM FOR DETECTING THE MIS-INSERTION OF A STAPLE CARTRIDGE INTO A SURGICAL STAPLER";

[00120] - US Patent Application Serial No. 14/640,799, entitled "SIGNAL AND POWER COMMUNICATION SYSTEM POSITIONED ON A ROTATABLE SHAFT"; and

[00121] - US patent application serial number 14/640,780, entitled "SURGICAL INSTRUMENT COMPRISING A LOCKABLE BATTERY HOUSING".

[00122] The applicant for this application holds the following patent applications that were filed on February 27, 2015, and which are each incorporated herein by reference in their respective entireties:

[00123] - US patent application serial number 14/633,576, entitled "SURGICAL INSTRUMENT SYSTEM COMPRISING AN INSPECTION STATION";

[00124] - US patent application serial number 14/633,546, entitled "SURGICAL APPARATUS CONFIGURED TO ASSESS WHETHER A PERFORMANCE PARAMETER OF THE SURGICAL APPARATUS IS WITHIN AN ACCEPTABLE PERFORMANCE BAND";

[00125] - US Patent Application Serial No. 14/633,576, entitled "SURGICAL CHARGING SYSTEM THAT CHARGES AND/OR CONDITIONS ONE OR MORE BATTERIES";

[00126] - US Patent Application Serial No. 14/633,566, entitled "CHARGING SYSTEM THAT ENABLES EMERGENCY RESOLUTIONS FOR CHARGING A BATTERY";

[00127] - US Patent Application Serial No. 14/633,555, entitled "SYSTEM FOR MONITORING WHETHER A SURGICAL INSTRUMENT NEEDS TO BE SERVICED";

[00128] - US patent application serial number 14/633,542, entitled "REINFORCED BATTERY FOR A SURGICAL INSTRUMENT";

[00129] - US Patent Application Serial No. 14/633,548, entitled "POWER ADAPTER FOR A SURGICAL INSTRUMENT";

[00130] - US Patent Application Serial No. 14/633,526, entitled "ADAPTABLE SURGICAL INSTRUMENT HANDLE";

[00131] - US Patent Application Serial No. 14/633,541 entitled "MODULAR STAPLING ASSEMBLY"; and

[00132] - US Patent Application Serial No. Attorney's Document No. 14/633,562, entitled "SURGICAL APPARATUS CONFIGURED TO TRACK AN END-OF-LIFE PARAMETER".

[00133] The applicant for this application holds the following patent applications that were filed on December 18, 2014, and which are each incorporated herein by reference in their respective entireties:

[00134] - US patent application serial number 14/574,478, entitled "SURGICAL INSTRUMENT SYSTEMS COMPRISING AN ARTICULATABLE END EFFECTOR AND MEANS FOR ADJUSTING THE FIRING STROKE OF A FIRING";

[00135] - US Patent Application Serial No. 14/574,483, entitled "SURGICAL INSTRUMENT ASSEMBLY COMPRISING LOCKABLE SYSTEMS";

[00136] - US patent application serial number 14/575,139, entitled "DRIVE ARRANGEMENTS FOR ARTICULATABLE SURGICAL INSTRUMENTS";

[00137] - US Patent Application Serial No. 14/575,148, entitled "LOCKING ARRANGEMENTS FOR DETACHABLE SHAFT ASSEMBLIES WITH ARTICULATABLE SURGICAL END EFFECTORS";

[00138] - US patent application serial number 14/575,130, entitled "SURGICAL INSTRUMENT WITH AN ANVIL THAT IS SELECTIVELY MOVABLE ABOUT A DISCRETE NON-MOVABLE AXIS RELATIVE TO A STAPLE CARTRIDGE";

[00139] - US Patent Application Serial No. 14/575,143, entitled "SURGICAL INSTRUMENTS WITH IMPROVED CLOSURE ARRANGEMENTS";

[00140] - US patent application serial number 14/575,117, entitled "SURGICAL INSTRUMENTS WITH ARTICULATABLE END EFFECTORS AND MOVABLE FIRING BEAM SUPPORT ARRANGEMENTS";

[00141] - US patent application serial number 14/575,154, entitled "SURGICAL INSTRUMENTS WITH ARTICULATABLE END EFFECTORS AND IMPROVED FIRING BEAM SUPPORT ARRANGEMENTS";

[00142] - US patent application serial number 14/574,493, entitled "SURGICAL INSTRUMENT ASSEMBLY COMPRISING A FLEXIBLE ARTICULATION SYSTEM"; and

[00143] - US patent application serial number 14/574,500, entitled "SURGICAL INSTRUMENT ASSEMBLY COMPRISING A LOCKABLE ARTICULATION SYSTEM".

[00144] The applicant for this application holds the following patent applications that were filed on March 1, 2013 and which are each incorporated herein by reference in their respective entireties:

[00145] - US Patent Application Serial No. 13/782,295, entitled "ARTICULATABLE SURGICAL INSTRUMENTS WITH CONDUCTIVE PATHWAYS FOR SIGNAL COMMUNICATION", now US Patent Application Publication No. 2014/0246471;

[00146] - US Patent Application Serial No. 13/782,323, entitled "ROTARY POWERED ARTICULATION JOINTS FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0246472;

[00147] - US Patent Application Serial No. 13/782,338, entitled "THUMBWHEEL SWITCH ARRANGEMENTS FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0249557;

[00148] - US Patent Application Serial No. 13/782,499, entitled "ELECTROMECHANICAL SURGICAL DEVICE WITH SIGNAL RELAY ARRANGEMENT", now US Patent Application Publication No. 2014/0246474;

[00149] - US PATENT APPLICATION SERIAL NO. 13/782,460, ENTITLED "MULTIPLE PROCESSOR MOTOR CONTROL FOR MODULAR SURGICAL INSTRUMENTS", NOW PUBLICATION OF US PATENT APPLICATION NO. 2014/0246478;

[00150] - US Patent Application Serial No. 13/782,358, entitled "JOYSTICK SWITCH ASSEMBLIES FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0246477;

[00151] - US Patent Application Serial No. 13/782,481, entitled "SENSOR STRAIGHTENED END EFFECTOR DURING REMOVAL THROUGH TROCAR", now US Patent Application Publication No. 2014/0246479;

[00152] - US Patent Application Serial No. 13/782,518, entitled "CONTROL METHODS FOR SURGICAL INSTRUMENTS WITH REMOVABLE IMPLEMENT PORTIONS", now US Patent Application Publication No. 2014/0246475;

[00153] - US Patent Application Serial No. 13/782,375, entitled "ROTARY POWERED SURGICAL INSTRUMENTS WITH MULTIPLE DEGREES OF FREEDOM", now US Patent Application Publication No. 2014/0246473; and

[00154] - US Patent Application Serial No. 13/782,536, entitled "SURGICAL INSTRUMENT SOFT STOP", now Patent Application Publication No. 2014/0246476;

[00155] The applicant for this application also holds the following patent applications that were filed on March 14, 2013, and which are each incorporated herein by reference in their respective entireties:

[00156] - US Patent Application Serial No. 13/803,097, entitled "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING A FIRING DRIVE", now US Patent Application Publication No. 2014/0263542;

[00157] - US Patent Application Serial No. 13/803,193, entitled "CONTROL ARRANGEMENTS FOR A DRIVE MEMBER OF A SURGICAL INSTRUMENT", now Patent Application Publication No. 2014/0263537;

[00158] - US Patent Application Serial No. 13/803,053, entitled "INTERCHANGEABLE SHAFT ASSEMBLIES FOR USE WITH A SURGICAL INSTRUMENT", now US Patent Application Publication No. 2014/0263564;

[00159] - US Patent Application Serial No. 13/803,086, entitled "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING AN ARTICULATION LOCK", now US Patent Application Publication No. 2014/0263541;

[00160] - US Patent Application Serial No. 13/803,210, entitled "SENSOR ARRANGEMENTS FOR ABSOLUTE POSITIONING SYSTEM FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263538;

[00161] - US Patent Application Serial No. 13/803,148, entitled "MULTI-FUNCTION MOTOR FOR A SURGICAL INSTRUMENT", now US Patent Application Publication No. 2014/0263554;

[00162] - US Patent Application Serial No. 13/803,066, entitled "DRIVE SYSTEM LOCKOUT ARRANGEMENTS FOR MODULAR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263565;

[00163] - US Patent Application Serial No. 13/803,117, entitled "ARTICULATION CONTROL SYSTEM FOR ARTICULATABLE SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263553;

[00164] - US Patent Application Serial No. 13/803,130, entitled "DRIVE TRAIN CONTROL ARRANGEMENTS FOR MODULAR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263543; and

[00165] - US Patent Application Serial No. 13/803,159, entitled "METHOD AND SYSTEM FOR OPERATING A SURGICAL INSTRUMENT", now US Patent Application Publication No. 2014/0277017.

[00166] The applicant for this application also holds the following patent application which was filed on March 7, 2014 and is hereby incorporated by reference in its entirety:

[00167] - US Patent Application Serial No. 14/200,111, entitled "CONTROL SYSTEMS FOR SURGICAL INSTRUMENTS", now US Patent Application Publication No. 2014/0263539.

[00168] The applicant for this application also holds the following patent applications that were filed on March 26, 2014 and which are each incorporated herein by reference in their respective entireties:

[00169] - US Patent Application Serial No. 14/226,106, entitled "POWER MANAGEMENT CONTROL SYSTEMS FOR SURGICAL INSTRUMENTS";

[00170] - US Patent Application Serial No. 14/226,099, entitled "STERILIZATION VERIFICATION CIRCUIT";

[00171] - US Patent Application Serial No. 14/226,094, entitled "VERIFICATION OF NUMBER OF BATTERY EXCHANGES/PROCEDURE COUNT";

[00172] - US Patent Application Serial No. 14/226,117, entitled "POWER MANAGEMENT THROUGH SLEEP OPTIONS OF SEGMENTED CIRCUIT AND WAKE UP CONTROL";

[00173] - US Patent Application Serial No. 14/226,075, entitled "MODULAR POWERED SURGICAL INSTRUMENT WITH DETACHABLE SHAFT ASSEMBLIES";

[00174] - US Patent Application Serial No. 14/226,093, entitled "FEEDBACK ALGORITHMS FOR MANUAL BAILOUT SYSTEMS FOR SURGICAL INSTRUMENTS";

[00175] - US patent application serial number 14/226,116, entitled "SURGICAL INSTRUMENT UTILIZING SENSOR ADAPTATION";

[00176] - US Patent Application Serial No. 14/226,071, entitled "SURGICAL INSTRUMENT CONTROL CIRCUIT HAVING A SAFETY PROCESSOR";

[00177] - US Patent Application Serial No. 14/226,097, entitled "SURGICAL INSTRUMENT COMPRISING INTERACTIVE SYSTEMS";

[00178] - US Patent Application Serial No. 14/226,126, entitled "INTERFACE SYSTEMS FOR USE WITH SURGICAL INSTRUMENTS";

[00179] - US Patent Application Serial No. 14/226,133, entitled "MODULAR SURGICAL INSTRUMENT SYSTEM";

[00180] - US patent application serial number 14/226,081, entitled "SYSTEMS AND METHODS FOR CONTROLLING A SEGMENTED CIRCUIT";

[00181] - US Patent Application Serial No. 14/226,076, entitled "POWER MANAGEMENT THROUGH SEGMENTED CIRCUIT AND VARIABLE VOLTAGE PROTECTION";

[00182] - US Patent Application Serial No. 14/226,111, entitled "SURGICAL STAPLING INSTRUMENT SYSTEM"; and

[00183] - US Patent Application Serial No. 14/226,125, entitled "SURGICAL INSTRUMENT COMPRISING A ROTATABLE SHAFT".

[00184] The applicant for this application also holds the following patent applications that were filed on September 5, 2014, and which are each incorporated herein by reference in their respective entireties:

[00185] - US Patent Application Serial No. 14/479,103, entitled "CIRCUITRY AND SENSORS FOR POWERED MEDICAL DEVICE";

[00186] - US Patent Application Serial No. 14/479,119, entitled "ADJUNCT WITH INTEGRATED SENSORS TO QUANTIFY TISSUE COMPRESSION";

[00187] - US Patent Application Serial No. 14/478,908, entitled "MONITORING DEVICE DEGRADATION BASED ON COMPONENT EVALUATION";

[00188] - US patent application serial number 14/478,895, entitled "MULTIPLE SENSORS WITH ONE SENSOR AFFECTING A SECOND SENSOR'S OUTPUT OR INTERPRETATION";

[00189] - US Patent Application Serial No. 14/479,110, entitled "USE OF POLARITY OF HALL MAGNET DETECTION TO DETECT MISLOADED CARTRIDGE";

[00190] - US Patent Application Serial No. 14/479,098, entitled "SMART CARTRIDGE WAKE UP OPERATION AND DATA RETENTION";

[00191] - US Patent Application Serial No. 14/479,115, entitled "MULTIPLE MOTOR CONTROL FOR POWERED MEDICAL DEVICE"; and

[00192] - US patent application serial number 14/479,108, entitled "LOCAL DISPLAY OF TISSUE PARAMETER STABILIZATION".

[00193] The applicant for this application also holds the following patent applications that were filed on April 9, 2014, and which are each incorporated herein by reference in their respective entireties:

[00194] - US Patent Application Serial No. 14/248,590, entitled "MOTOR DRIVEN SURGICAL INSTRUMENTS WITH LOCKABLE DUAL DRIVE SHAFTS", now US Patent Application Publication No. 2014/0305987;

[00195] - US Patent Application Serial No. 14/248,581, entitled "SURGICAL INSTRUMENT COMPRISING A CLOSING DRIVE AND A FIRING DRIVE OPERATED FROM THE SAME ROTATABLE OUTPUT", now Patent Application Publication No. 2014/0305989;

[00196] - US Patent Application Serial No. 14/248,595, entitled "SURGICAL INSTRUMENT SHAFT INCLUDING SWITCHES FOR CONTROLLING THE OPERATION OF THE SURGICAL INSTRUMENT", now published US Patent Application No. 2014/0305988;

[00197] - US Patent Application Serial No. 14/248,588, entitled "POWERED LINEAR SURGICAL STAPLER", now US Patent Application Publication No. 2014/0309666;

[00198] - US Patent Application Serial No. 14/248,591, entitled "TRANSMISSION ARRANGEMENT FOR A SURGICAL INSTRUMENT", now US Patent Application Publication No. 2014/0305991;

[00199] - US Patent Application Serial No. 14/248,584, entitled "MODULAR MOTOR DRIVEN SURGICAL INSTRUMENTS WITH ALIGNMENT FEATURES FOR ALIGNING ROTARY DRIVE SHAFTS WITH SURGICAL END EFFECTOR SHAFTS", now published US Patent Application No. 2014/0305994 ;

[00200] - US Patent Application Serial No. 14/248,587, entitled "POWERED SURGICAL STAPLER", now US Patent Application Publication No. 2014/0309665;

[00201] - US Patent Application Serial No. 14/248,586, entitled "DRIVE SYSTEM DECOUPLING ARRANGEMENT FOR A SURGICAL INSTRUMENT", now patent application publication No. 2014/0305990; and

[00202] - US Patent Application Serial No. 14/248,607, entitled "MODULAR MOTOR DRIVEN SURGICAL INSTRUMENTS WITH STATUS INDICATION ARRANGEMENTS", now US Patent Application Publication No. 2014/0305992.

[00203] The applicant for this application also holds the following patent applications that were filed on April 16, 2013, and which are each incorporated herein by reference in their respective entireties:

[00204] - US provisional patent application serial number 61/812,365, entitled "SURGICAL INSTRUMENT WITH MULTIPLE FUNCTIONS PERFORMED BY A SINGLE MOTOR";

[00205] - US Provisional Patent Application Serial No. 61/812,376, entitled "LINEAR CUTTER WITH POWER";

[00206] - US provisional patent application serial number 61/812,382, entitled "LINEAR CUTTER WITH MOTOR AND PISTOL GRIP";

[00207] - US provisional patent application serial number 61/812,385, entitled "SURGICAL INSTRUMENT HANDLE WITH MULTIPLE ACTUATION MOTORS AND MOTOR CONTROL"; and

[00208] - US provisional patent application serial number 61/812,372, entitled "SURGICAL INSTRUMENT WITH MULTIPLE FUNCTIONS PERFORMED BY A SINGLE MOTOR".

[00209] Numerous specific details are presented to provide a complete understanding of the structure, function, fabrication and general use of the modalities as described in the descriptive report and illustrated in the attached drawings. Well known operations, components and elements have been described in detail so as not to obscure the embodiments described in the specification. The reader will understand that the embodiments described and illustrated in the present invention are non-limiting examples and, therefore, it is to be understood that the specific structural and functional details disclosed in the present invention may be representative and illustrative. Variations and alterations may be made thereto without deviating from the scope of the claims.

[00210] The terms "comprises" (and any form of comprises, such as "comprises" and "which comprises"), "has" (and any form of has, such as "has" and "which has"), "includes" (and any form of includes, such as "includes" and "which includes") and "contains" (and any form of contains, such as "contains" and "which contains") are unrestricted linking verbs. As a result, a system, device or surgical apparatus that "comprises", "has", "includes" or "contains" one or more elements has those one or more elements, but is not limited to having only those one or more elements. Similarly, an element of a system, device or surgical apparatus that "comprises", "has", "includes" or "contains" one or more features has those one or more features, but is not limited to having only those one or more features. or more features.

[00211] The terms "proximal" and "distal" are used in the present invention with reference to a physician manipulating the handle portion of the surgical instrument. The term "proximal" refers to the portion closest to the practitioner, and the term "distal" refers to the portion located away from the practitioner. It will also be understood that, for the sake of convenience and clarity, spatial terms such as "vertical", "horizontal", "up" and "down" may be used in the present invention in connection with the drawings. However, surgical instruments can be used in many orientations and positions, and these terms are not intended to be limiting and/or absolute.

[00212] Several exemplary devices and methods are provided for performing laparoscopic and minimally invasive surgical procedures. However, the reader will readily understand that the various methods and devices disclosed in the present invention can be used in a number of surgical procedures and applications, including, for example, in connection with open surgical procedures. As this Detailed Description proceeds, the reader will further understand that the various instruments disclosed herein may be inserted into a body in any manner, such as through a natural orifice, through an incision or perforation formed in tissues, etc. The functional portions or end actuator portions of the instruments can be inserted directly into a patient's body, or can be inserted through an access device that has a working channel through which the end actuator and the end actuator can be advanced. elongated drive shaft of a surgical instrument.

[00213] The surgical stapling system may comprise a drive shaft and an end actuator that extends from the drive shaft. The end actuator comprises a first jaw and a second jaw. The first gripper comprises a staple cartridge. The staple cartridge is insertable into and removable from the first jaw; however, other embodiments are envisaged in which a staple cartridge is not removable, or at least readily replaceable, from the first jaw. The second gripper comprises an anvil configured to deform staples ejected from the staple cartridge. The second claw pivots with respect to the first claw around a closing geometric axis; however, other embodiments are envisaged in which the first claw is pivotal with respect to the second claw. The surgical stapling system further comprises a pivot joint configured to allow the end actuator to be pivoted or pivoted relative to the drive shaft. The end actuator is rotatable about a pivot axis that extends through the pivot joint. Other embodiments are envisaged that do not include an articulated joint.

[00214] The staple cartridge comprises a cartridge body. The cartridge body includes a proximal end, a distal end, and a platform extending between the proximal end and the distal end. In use, the staple cartridge is positioned on a first side of the tissue to be stapled and the anvil is positioned on a second side of the tissue. The anvil is moved towards the staple cartridge to compress and secure the tissue against the platform. Thereafter, the staples removablely stored in the cartridge body can be delivered to the tissue. The cartridge body includes clip cavities defined therein, the clips being removablely stored in the clip cavities. The staple cavities are arranged in six longitudinal rows. Three rows of staple cavities are positioned on a first side of a longitudinal slot and three rows of staple pockets are positioned on a second side of the longitudinal slot. Other arrangements of staple cavities and staples may be possible.

[00215] The staples are supported by staple drivers in the cartridge body. The actuators are movable between a first position, or unfired position, and a second position, or fired position, for ejecting staples from staple cavities. The actuators are retained in the cartridge body by a retainer that extends around the bottom of the cartridge body and includes resilient members configured to grip the cartridge body and retain the retainer in the cartridge body. Triggers are movable between their non-triggered positions and their positions triggered by a slider. The slider is movable between a proximal position adjacent to the proximal end and a distal position adjacent to the distal end. The slider comprises a plurality of inclined surfaces configured to slide under the drivers and lift the drivers, and the clamps supported thereon, towards the anvil.

[00216] In addition to the above, the slider is moved distally by a trigger member. The trigger member is configured to contact the slider and push the slider towards the distal end. The 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 trigger member further comprises a first cam that engages the first jaw and a second cam that engages the second claw. As the trigger member is advanced distally, the first cam and second cam can control the distance, or tissue gap, between the staple cartridge platform and the anvil. The trigger member also comprises a knife configured to make an incision in tissue captured between the anvil and the staple cartridge. It is desirable that the knife be positioned at least partially proximal to the inclined surfaces so that the staples are ejected ahead of the knife.

[00217] Figures 1 to 4 represent a surgical instrument 10 for motor-driven cutting and fixation, which may or may not be reused. In the illustrated embodiment, the instrument 10 includes a housing 12 comprising a handle 14 that is configured to be picked up, manipulated and actuated by the clinician. Housing 12 is configured for operative attachment to an elongated drive shaft assembly 200 having a surgical end actuator 300 operatively coupled thereto which is configured to perform one or more surgical tasks or procedures. The elongated driveshaft assembly 200 may be interchangeable with other driveshaft assemblies in the various ways disclosed, for example, in US Patent Application Serial No. 14/226,075 entitled "MODULAR POWERED SURGICAL INSTRUMENT WITH DETACHABLE SHAFT ASSEMBLIES" , the description of which is hereby incorporated by reference in its entirety. In other embodiments, the elongated driveshaft assembly may not be interchangeable with other driveshaft assemblies and essentially comprise a non-removable dedicated portion of the instrument.

[00218] As this Detailed Description proceeds, it will be understood that the various forms of interchangeable drive shaft assemblies disclosed herein may also be effectively employed in connection with robotically controlled surgical systems. Accordingly, the term "enclosure" may also encompass an enclosure or similar portion of a robotic system that houses or otherwise operatively supports at least one drive system configured to generate and apply at least one control motion that can be used to drive the interchangeable drive shaft assemblies described in the present invention and their respective equivalents. The term "frame" may refer to a portion of a handheld surgical instrument. The term "structure" can also represent a portion of a robot-controlled surgical instrument and/or a portion of the robotic system that can be used to operably control the surgical instrument. For example, the drive shaft assemblies disclosed herein can be employed with various robotic systems, instruments, components, and methods disclosed in U.S. Patent Application Serial No. 13/118,241 entitled "SURGICAL STAPLING INSTRUMENTS WITH ROTATABLE STAPLE DEPLOYMENT ARRANGEMENTS ", now US Patent Application Publication No. 2012/0298719, which is incorporated herein by reference in its entirety.

[00219] The compartment 12 illustrated in Figure 1 is shown in connection with the elongated drive shaft assembly 200, which includes a surgical end actuator 300 comprising a surgical device for cutting and fixing that is configured to operationally support in its interior a surgical staple cartridge 304. Housing 12 may be configured for use in connection with drive shaft assemblies that include end actuators that are adapted to support different sizes and types of staple cartridges, have different sizes and types of drive shafts, drive, etc. In addition, housing 12 can also be effectively employed with a variety of other driveshaft assemblies, including assemblies that are configured to deliver other motion and forms of energy, such as radio frequency (RF) energy, ultrasonic energy and/or movement to end actuator arrangements adapted for use in connection with various surgical applications and procedures. In addition, end actuators, drive shaft assemblies, cables, surgical instruments and/or surgical instrument systems may use any one or more suitable fasteners to secure tissues. For example, a fastener cartridge comprising a plurality of fasteners stored therein removablely may be removablely inserted into and/or attached to the end actuator of a driveshaft assembly.

[00220] Figure 1 illustrates the compartment 12 or handle 14 of the surgical instrument 10 with an interchangeable elongated drive shaft assembly 200 operationally coupled thereto. As seen in Figure 1, the cable 14 may comprise a pair of interconnectable cable housing segments 16 and 18 which may be interconnected by screws, press fit elements, adhesive, etc. In the illustrated arrangement, the handle compartment segments 16 and 18 cooperate to form a pistol grip portion 19 which can be gripped and manipulated by the physician. As will be discussed in more detail below, the cable 14 operatively supports, within it, a plurality of drive systems that are configured to generate and apply various control motions to corresponding portions of the interchangeable drive shaft assembly that are operatively attached to the same.

[00221] Now referring to Figure 2, the cable 14 may also include a structure 20 that operatively supports a plurality of drive systems. For example, frame 20 can operatively support a "first" drive system or closing drive system, generally designated 30, which can be employed to apply closing and opening motions to the elongated drive shaft assembly. 200 which is attached or operatively coupled thereto. In at least one form, the closing drive system 30 can include an actuator in the form of a closing trigger 32, pivotally supported by the frame 20. More specifically, as illustrated in Figure 2, the closing trigger 32 is Pivotally coupled to the housing 14 by a pin 33. This arrangement allows the closure trigger 32 to be manipulated by a physician, so that when the physician grasps the pistol grip portion 19 of the handle 14, the closure trigger 32 can be easily rotated from an initial or "non-actuated" position to an "actuated" position, and more particularly to a fully compressed or fully actuated position. Closing trigger 32 can be displaced to the unloaded position by a spring or other displacement arrangement (not shown). In various forms, the closing drive system 30 further includes a set of closing links 34 that is pivotally coupled to closing trigger 32. As can be seen in Figure 2, the set of closing links 34 can include a first lock link 36 and a second lock link 38 that are pivotally coupled to the lock trigger 32 by a pin 35. The second lock link 38 may also be called a "fastening element" and include a transverse fixing pin 37.

[00222] Still with reference to Figure 2, it can be seen that the first closing link 36 can have a wall or locking end 39 on it that is configured to cooperate with a closing release assembly 60 that is coupled in such a way pivotally to frame 20. In at least one form, the closure release assembly 60 may comprise a release button assembly 62 having a distally projecting locking tongue 64 formed thereover. Release knob assembly 62 can be rotated counterclockwise by a release spring (not shown). When the clinician presses the closing trigger 32 from its non-actuated position towards the pistol grip portion 19 of the handle 14, the first closing link 36 rotates upward to a point where the locking tongue 64 falls into a retaining engagement with the locking wall 39 on the first closing link 36 thus preventing the closing trigger 32 from returning to the non-actuated position. In this way, the closure release assembly 60 serves to lock the closure trigger 32 in the fully actuated position. When the clinician wishes to unlock the closing trigger 32 to allow it to be forced into the non-actuated position, he simply rotates the closing release knob assembly 62 so that the locking tab 64 is moved out of engagement. with locking wall 39 on first locking link 36. When locking tongue 64 has been moved out of engagement with first locking link 36, locking trigger 32 can pivot back to the non-actuated position. Other arrangements for locking and releasing the closing trigger may also be employed.

[00223] When the closing trigger 32 is moved from its non-actuated position to its actuated position, the closing release knob 62 is rotated between a first position and a second position. Rotation of closure release button 62 may be designated as an upward rotation; however, at least a portion of the closure release knob 62 is being rotated toward the circuit board 100. Referring still to Figure 2, the closure release knob 62 may include an arm 61 that extends therefrom. and a magnetic element 63, such as a permanent magnet, for example, mounted on the arm 61. When the closing release knob 62 is rotated from its first position to its second position, the magnetic element 63 can move towards the plate circuit board 100. Circuit board 100 may include at least one sensor that is configured to detect movement of magnetic element 63. In at least one embodiment, a Hall effect sensor may be mounted on the bottom surface of circuit board 100 The Hall effect sensor can be configured to detect changes in a magnetic field surrounding the Hall effect sensor caused by the movement of magnetic element 63. The Hall effect sensor can be in communication with each other. end with a microcontroller, for example, which can determine whether the close release button 62 is in its first position, which is associated with the non-actuated position of the close trigger 32, and the open configuration of the end actuator, in its second position, which is associated with the actuated position of the closing trigger 32 and the closed configuration of the end actuator, and/or in any position between the first position and the second position.

[00224] Also in the illustrated arrangement, the cable 14 and the structure 20 can operationally support another drive system, called, in the present invention, a trigger drive system 80, which is configured to apply trigger movements to the corresponding portions of the interchangeable drive shaft assembly attached to it. The trigger drive system 80 may also be called, in the present invention, the "second drive system". The trigger drive system 80 may employ an electric motor 82 located in the gun grip portion 19 of the handle assembly 14. In various forms, the motor 82 may be a direct current brush drive motor having a maximum speed of approximately 25,000 RPM, for example. In other arrangements, the motor may include a brushless motor, a cordless motor, a synchronous motor, a stepper motor, or any other suitable electric motor. The motor 82 may be powered by a power supply 90 which, in one form, may comprise a removable power source 92. As can be seen in Figure 2, for example, the battery 92 may comprise a proximal compartment portion 94 which is configured for attachment to a distal compartment portion 96. The proximal compartment portion 94 and the distal compartment portion 96 are configured to operatively support a plurality of batteries 98. The batteries 98 may each comprise, for example, one battery Lithium Ion ("LI") battery pack or other suitable battery pack. Distal compartment portion 96 is configured for removable operative attachment to a control circuit board assembly 100 which is also operatively coupled to motor 82. Several batteries 98, which may be connected in series, may be used as the power supply. for the surgical instrument 10. In addition, the power source 90 may be replaceable and/or rechargeable.

[00225] As described above in relation to other various forms, the electric motor 82 includes a rotary drive shaft (not shown), which operationally interfaces with a gear reducer assembly 84, which is mounted in meshed engagement with a set, or rack, of drive teeth 122 on a longitudinally movable drive member 120. In use, a voltage polarity supplied by the power supply 90 can operate the electric motor 82 clockwise, the voltage polarity applied to the electric motor by the battery can be reversed to operate the electric motor 82 counter clockwise. When the electric motor 82 is rotated in one direction, the drive member 120 will be axially activated in the distal "DD" direction. When motor 82 is driven in an opposite rotational direction, drive member 120 will be axially driven in the proximal "DP" direction. Cable 14 can include a switch that can be configured to reverse the polarity applied to electric motor 82 by power supply 90. As with the other forms described in the present invention, cable 14 can also include a sensor configured to detect position of the drive member 120 and/or the direction in which the drive member 120 is being moved.

[00226] The activation of the motor 82 can be controlled by a firing trigger 130 pivotally supported on the cable 14. The firing trigger 130 can be rotated between a non-actuated position and a triggered position. Fire trigger 130 can be forced into the non-actuated position by a spring 132 or other displacement arrangement so that when the clinician releases fire trigger 130, it can be rotated or otherwise returned to the non-actuated position. by spring 132 or displacement arrangement. In at least one form, the firing trigger 130 can be positioned "far" from the closing trigger 32, as discussed above. In at least one form, a firing trigger safety button 134 can be pivotally mounted to the closing trigger 32 by pin 35. The safety button 134 can be positioned between the firing trigger 130 and the closing trigger 32 and having a pivot arm 136 projecting therefrom. See Figure 2. When the closing trigger 32 is in the non-actuated position, the safety button 134 is contained in the handle 14, where the clinician cannot readily access it and move it between a safety position, which prevents actuation. of the trigger 130, and a firing position at which the trigger 130 can be fired. When the physician presses the closing trigger 32, the safety button 134 and the firing trigger 130 pivot downwards to a position where they can then be manipulated by the physician.

[00227] As discussed above, the handle 14 includes a closing trigger 32 and a firing trigger 130. The firing trigger 130 can be pivotally mounted on the closing trigger 32. When the closing trigger 32 is moved from its unactivated position to its activated position, the trigger 130 can move downwards, as described above. After safety knob 134 has been moved to its firing position, firing trigger 130 can be pressed to operate the motor of the surgical instrument firing system. In various circumstances, cable 14 may include a tracking system configured to determine the position of closure trigger 32 and/or the position of fire trigger 130.

[00228] As indicated above, in at least one form, the longitudinally movable drive member 120 has a rack of drive teeth 122 formed therein for meshed engagement with a corresponding drive gear 86 of the gear reducer assembly 84. At least one form also includes a manually actuable "eject" assembly 140 that is configured to enable the clinician to manually retract the longitudinally movable actuating member 120 in the event that the motor 82 becomes disabled. The ejection assembly 140 may include a lever or an ejection handle assembly 142 that is configured to be manually rotated for ratcheting engagement with the teeth 124 also provided on the actuating member 120. In this way, the practitioner can manually retract the member drive member 120 using ejection cable assembly 142 to engage drive member 120 in the proximal "DP" direction. US Patent Application Publication No. 2010/0089970 discloses rescue arrangements and other components, arrangements and systems that may also be employed with the various instruments disclosed herein. US Patent Application Serial No. 12/249,117 entitled "POWERED SURGICAL CUTTING AND STAPLING APPARATUS WITH MANUALLY RETRACTABLE FIRING SYSTEM", now US Patent No. 8,608,045, is hereby incorporated by reference in its entirety.

[00229] Now referring to Figures 1 and 3, the elongated drive shaft assembly 200 includes a surgical end actuator 300 comprising an elongated groove 302 that is configured to operatively support a staple cartridge 304 therein. End cap 300 may also include an anvil 310 that is pivotally supported with respect to elongated raceway 302. As will be discussed further below in more detail, surgical end actuator 300 may pivot with respect to the elongated drive shaft assembly. around a pivot joint 270. As shown in Figures 3 and 4, the driveshaft assembly 200 may further include a housing or proximal nozzle 201 comprised of nozzle portions 202 and 203. The driveshaft assembly 200 may include There is also a closing tube 260 that can be used to close and/or open an anvil 310 of the end actuator 300. Figure 4, the driveshaft assembly 200 includes a center post 210, which may be configured to fixedly support the driveshaft frame portion 212, of the pivot latch 350. Details regarding the construction and operation of the pivot latch 350 are disclosed in US Patent Application Serial No. 13/803,086 entitled "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING A FIRING DRIVE", now US Patent Application Publication No. 2014/0263541, the description of which is incorporated herein by reference at its entirety. Center column 210 is configured to, one, slide support a firing member 220 therein and, two, slide closure tube 260 that extends around center column 210. Center column 210 also slidingly supports a proximal pivot driver 230. The proximal pivot driver 230 has a distal end 231 that is configured to operatively engage pivot latch 350. In one arrangement, pivot latch 350 interfaces with a pivot structure 352 adapted to operatively engage a drive pin (not shown) in the end actuator frame (not shown).

[00230] In the illustrated arrangement, the central column 210 may comprise a proximal end 211 that is pivotally supported on a chassis 240. In one arrangement, for example, the proximal end 211 of the central column 210 has a thread 214 formed in it for attachment threaded to a center column bearing 216 configured to be supported within frame 240. See Figure 3. This arrangement facilitates pivotal attachment of center column 210 to frame 240 so that center column 210 can be selectively rotated around a SA-SA axis of the driveshaft with respect to frame 240. The driveshaft assembly 200 also includes a reciprocating closure member 250 that is slidably supported within frame 240 so that it can be moved axially relative to frame 240. at the same. As seen in Figure 3, reciprocating closure member 250 includes a pair of proximally projecting hooks 252 that are configured to be attached to attachment pin 37 that is attached to second closure link 38, as will be discussed further. detailed below. See Figure 2. A proximal end 261 of closure tube 260 is coupled to reciprocating closure member 250 for relative rotation therewith. For example, a U-shaped connector 263 is inserted into an annular slot 262 in the proximal end 261 of the closure tube 260 and is retained within the vertical slots 253 in the reciprocating closure element 250. See Figure 3. This arrangement serves to secure the closure tube 260 to the reciprocating closure element 250 for axial displacement therewith, while allowing the closure tube 260 to rotate with respect to the reciprocating closure element 250 about the axis SA-SA of the shaft drive. A closing spring 268 is seated over the closing tube 260 and serves to bias the closing tube 260 in the proximal "DP" direction, which can serve to rotate the closing trigger to the non-actuated position when the drive shaft assembly 200 is operatively coupled to cable 14.

[00231] Also as indicated above, the elongated driveshaft assembly 200 further includes a trigger member 220 that is supported for axial displacement on the central column 210 of the driveshaft. Firing member 220 includes a firing drive shaft intermediate portion 222 which is configured to connect to a distal cutting portion or firing bar 280. Firing member 220 may also be referred to in the present invention as a " second driveshaft" and/or a "second driveshaft assembly". As seen in Figure 4, the firing drive shaft intermediate portion 222 may include a longitudinal slot 223 at its distal end, which may be configured to receive a tab 284 on the proximal end 282 of the distal firing bar 280. longitudinal slot 223 and proximal end 282 may be sized and configured to allow relative movement therebetween and may comprise a sliding joint 286. The sliding joint 286 may allow the firing drive shaft intermediate portion 222 of the firing drive to 220 is moved to pivot the surgical end actuator 300 without moving, or at least substantially moving, the trigger bar 280. When the surgical end actuator 300 has been properly oriented, the intermediate portion of the trigger drive shaft 222 can be advanced distally until a proximal side wall of longitudinal slit 223 contacts tab 284 to to advance the distal firing bar 280 and fire a staple cartridge that can be supported on the end actuator 300. As can be further seen in Figure 4, the center column 210 of the drive shaft has an elongated opening or window 213 in its interior to facilitate assembly and insertion of the trigger drive shaft intermediate portion 222 into the drive shaft frame 210. After the trigger drive shaft intermediate portion 222 is inserted into the frame, an upper frame segment 215 can be be engaged with the drive shaft frame 212 to enclose the firing drive shaft intermediate portion 222 and the firing bar 280 therein. A more detailed discussion of the operation of the firing member 220 can be seen in the order publication US Patent Application No. 13/803,086, now US Patent Application Serial No. 2014/0263541.

[00232] In addition to the above, the drive shaft assembly 200 illustrated includes a clutch assembly 400 that can be configured to selectively and releasably couple the linkage driver 230 to the trigger member 220. In one form, the assembly The clutch assembly 400 comprises a locking ring or sleeve 402 positioned around the trigger member 220, the locking sleeve 402 being pivotable between an engaged position where the locking sleeve 402 engages the pivot driver 360 with the member. trigger member 220, and a disengaged position, in which pivot driver 360 is not operatively coupled to trigger member 200. When locking sleeve 402 is in its engaged position, distal movement of trigger member 220 can move trigger 360 in a distal direction, and correspondingly, proximal movement of trigger member 220 can proximally move proximal 230 pivot driver. When the linkage 402 is in its disengaged position, movement of trigger member 220 is not transmitted to proximal pivot driver 230 and, as a result, trigger member 220 can move independently of proximal pivot driver 230. Under various circumstances , the proximal pivot driver 230 can be held in position by the pivot lock 350 when the proximal pivot driver 230 is not being moved in the proximal or distal direction by the trigger member 220.

[00233] Referring primarily to Figure 4, the locking sleeve 402 may comprise a cylindrical, or at least substantially cylindrical, body that includes a longitudinal opening 403 defined therein, configured to receive the firing member 220. The locking sleeve 402 may comprise diametrically opposed inwardly facing locking protrusions 404 and an outwardly facing locking element 406. The locking protrusions 404 may be configured to be selectively engaged with the firing member 220. More particularly, when the locking sleeve 402 is in their engaged position, the locking protrusions 404 are positioned in a drive notch 224 defined in the triggering member 220 such that a distal compressive force and/or a proximal pulling force can be transmitted from the triggering member 220 to the locking sleeve 402. When locking sleeve 402 is in its engaged position, the second locking element Knuckle 406 is received within a drive slot 232 defined in the proximal pivot driver 230 such that the distal compressive force and/or the proximal tensile force applied to the locking sleeve 402 can be transmitted to the pivot driver 230 In effect, trigger member 220, locking sleeve 402 and proximal pivot driver 230 will move together when locking sleeve 402 is in its engaged position. On the other hand, when the locking sleeve 402 is in its disengaged position, the locking protrusions 404 may not be positioned within the driving notch 224 of the triggering member 220 and, as a result, a distal compressive force and/or a proximal pulling force may not be transmitted from the trigger member 220 to the locking sleeve 402. Correspondingly, the distal pulling force and/or the proximal pulling force cannot be transmitted to the proximal pivot driver 230. circumstances, trigger member 220 can be slid proximally and/or distally relative to locking sleeve 402 and proximal pivot driver 230.

[00234] As can also be seen in Figure 4, the drive shaft assembly 200 additionally includes a switching drum 500 which is rotatably received in the closure tube 260. The switching drum 500 comprises a drive shaft segment hollow 502 having a drive shaft projection 504 formed therein, intended to receive within it an actuation pin 410 projecting outwards. In various circumstances, actuation pin 410 extends through a slot 267 into a longitudinal slot 408 provided in locking sleeve 402 to facilitate axial movement of locking sleeve 402 when it is engaged with the proximal pivot driver. 230. A rotary torsion spring 420 is configured to engage the driveshaft boss 504 with the keying drum 500 and a portion of the nozzle housing 203 to apply a shifting force to the keying drum 500. The keying drum 500 can further comprise at least partially circumferential openings 506 defined therein, which, with reference to Figures 5 and 6, can be configured to receive circumferential crimps extending from the mouth portions 202, 203, and allow relative rotation, but not translation, between keying drum 500 and proximal nozzle 201. The crimps also extend through openings 266 in the closure tube 260 to be seated in recesses in the center column 210. However, rotation of the nozzle 201 to a point where the crimps reach the end of their respective slots 506 in the keying drum 500 will result in rotation of the keying drum 500 around the SA-SA axis of the drive shaft. Rotation of keying drum 500 will ultimately result in rotation of actuation pin 410 and locking sleeve 402 between their engaged and disengaged positions. Thus, in essence, the mouthpiece 201 can be employed to operationally engage and disengage the linkage drive system with the firing drive system in the various ways described more fully in U.S. Patent Application Serial No. 13/803,086, now US Patent Application Publication No. 2014/0263541.

[00235] Also as illustrated in Figures 3 to 4, the drive shaft assembly 200 can comprise a slip ring assembly 600 that can be configured to conduct electrical energy to the end actuator 300 and/or from it, and/or communicating signals to and/or from end actuator 300, for example. The slip ring assembly 600 may comprise a proximal connector flange 604 mounted to a chassis flange 242 extending from the chassis 240 and a distal connector flange 601 positioned within a defined slot in the driveshaft housings 202 203. The proximal connector flange 604 may comprise a first face and the distal connector flange 601 may comprise a second face that is positioned adjacent to and movable relative to the first face. Distal connector flange 601 is rotatable relative to proximal connector flange 604 about the SA-SA axis of the drive shaft. Proximal connector flange 604 may comprise a plurality of concentric or at least substantially concentric conductors 602 defined on its first face. A connector 607 may be mounted on the proximal side of the distal connector flange 601 and may have a plurality of contacts (not shown), each contact corresponding to and in electrical contact with one of the conductors 602. This arrangement allows for relative rotation between the proximal connector flange 604 and the distal connector flange 601, and still maintain electrical contact therebetween. Proximal connector flange 604 can include an electrical connector 606 that can place conductors 602 in signal communication with a driveshaft circuit board 610 mounted on driveshaft chassis 240, for example. In at least one instance, an electrical harness comprising a plurality of conductors may extend between electrical connector 606 and driveshaft circuit board 610. Electrical connector 606 may extend proximally through an opening in the connector. 243 set into chassis mounting flange 242. See Figure 7. US Patent Application Serial No. 13/800,067, entitled "STAPLE CARTRIDGE TISSUE THICKNESS SENSOR SYSTEM", filed March 13, 2013, now published US Patent No. 2014/0263552, is incorporated herein by reference in its entirety. US Patent Application Serial No. 13/800,025, entitled "STAPLE CARTRIDGE TISSUE THICKNESS SENSOR SYSTEM", filed March 13, 2013, now US Patent Application Publication No. 2014/0263551, is incorporated herein by reference , in its entirety. Additional details regarding slip ring assembly 600 can be found in US Patent Application Publication Serial No. 13/803,086, now US Patent Application Publication No. 2014/0263541.

[00236] As discussed above, the elongated drive shaft assembly 200 may include a proximal portion that is attachably mounted to the handle 14, and a distal portion that is rotatable about a longitudinal axis SA-SA of the drive shaft drive. The distal pivoting portion of the drive shaft can be rotated relative to the proximal portion around slip ring assembly 600 as discussed above. The distal connector flange 601 of the slip ring assembly 600 can be positioned on the distal rotary drive shaft portion. Additionally, in addition to the above, the keying drum 500 may also be positioned within the distal rotating portion of the drive shaft. When the distal rotatable drive shaft portion is rotated, the distal connector flange 601 and the keying barrel 500 can be rotated synchronously with each other. Furthermore, the keying drum 500 is pivotable between a first position and a second position relative to the distal connector flange 601. When the keying drum 500 is in its first position, the linkage drive system (i.e., the proximal pivot driver 230) may be operationally disengaged from the trigger drive system, and therefore operation of the trigger drive system may not pivot the end actuator 300 from the drive shaft assembly 200. When the switch 500 is in its second position, the pivot drive system (i.e., the proximal pivot driver 230) can be operatively engaged with the trigger drive system, and in this way, operation of the trigger drive system can be pivot end actuator 300 from drive shaft assembly 200. When switching drum 500 is moved between its first position and its second In this position, the keying drum 500 is moved relative to the distal connector flange 601. In various cases, the driveshaft assembly 200 may comprise at least one sensor configured to detect the position of the keying drum 500.

[00237] Referring again to Figure 4, the closure tube assembly 260 includes a double pivot closure sleeve assembly 271. According to various forms, the double pivot closure sleeve assembly 271 includes a closure sleeve of end actuator 272 having upper and lower terminals 273, 274 projecting distally. An upper double pivot link 277 includes upwardly projecting distal and proximal pivot pins that engage, respectively, an upper distal hole in the upper proximally projecting connecting lug 273 and an upper proximal hole in an upper connecting lug 273. Distally projecting upper connection 264 on closure tube 260. A lower double pivot link 278 includes upwardly projecting distal and proximal pivot pins that respectively engage a lower distal hole in the lower connecting end. proximally projecting 274 and a lower proximal hole in the lower distally projecting connection terminal 265. See also Figure 6.

[00238] Figures 5 to 8 illustrate a surgical end actuator embodiment 300 that is configured to be operatively attached to an elongated drive shaft assembly of a surgical instrument of the type described above or other surgical instruments that include a system of closure configured to generate control motions to axially move a closure element that is configured to apply closing and opening motions to portions of the surgical end actuator. In the illustrated example, as will be discussed further below in more detail, the surgical end actuator is configured to be pivotable relative to a proximal portion of the elongated drive shaft assembly about a pivot joint, generically designated 339. Other Arrangements , however, may not be capable of articulation. As seen in Figure 6, the pivot joint 339 defines a B-B pivot axis around which the surgical end actuator 300 can be selectively pivoted. In the illustrated example, the pivot axis B-B is substantially transverse to the axis SA-SA of the drive shaft of the elongated drive shaft assembly.

[00239] The illustrated surgical end actuator 300 comprises a first jaw 308 and a second jaw 309 that is selectively movable with respect to the first jaw 308 between an open position (Figure 7) and a closed position (Figure 8). In the illustrated embodiment, the first jaw 308 comprises an elongated groove 302 that is configured to operatively support a cartridge of surgical staples 304 therein, and the second jaw 309 comprises an anvil 310. However, other surgical jaw arrangements may be employed without that deviate from the character and scope of the present invention. As seen in Figure 5, a support tray 305 can be attached to the surgical staple cartridge 304 to provide additional support therefor, as well as to prevent the staple drivers (not shown) that are supported in the pockets to staples 306 formed in the surgical staple cartridge 304 fall out of the surgical staple cartridge prior to use. As seen in Figure 5, the elongated groove 302 has a proximal end portion 320 that includes two vertical sidewalls 322. The anvil 310 includes an anvil body 312 that has a lower clip-forming surface 313 formed thereon. . A proximal end 314 of the anvil body is bifurcated by a firing member slot 315 defining a pair of anvil attachment arms 316. Each anvil attachment arm 316 includes an inclined top surface 321 and includes an anvil swivel pin projecting side 317, and a cam slot 318 defining a cam surface or "grooved cam surface" 319. See Figure 5. One of the cam slots 318 may be referred to herein as a "first cam slot" with its cam surface called "first cam surface". Similarly, the other cam slot 318 may be called a "second cam slot" with its cam surface being referred to herein as the "second cam surface". A swivel pin hole 324 is provided in each sidewall 322 of the elongated groove 302 to receive a corresponding anvil swivel pin 317 therein. Such an arrangement serves to movably attach the anvil 310 to the elongated groove 302 for selective pivotal displacement about an anvil axis A-A, which is defined by the pivot pin holes 324 and which is transverse to the axis SA-SA of the axis. drive. See Figure 6.

[00240] In the illustrated arrangement, the anvil 310 is pivotally moved relative to the elongated groove 302, and the surgical staple cartridge 304 supported therein is moved to an open position by a pair of opening cams 354 that can be removablely supported, removablely attached, permanently attached, or integrally formed in an actuator member of the anvil. In the illustrated embodiment, the anvil actuator member comprises the end actuator closing sleeve 272. See Figure 5. Each aperture cam 354 includes an outer body portion 356 having a cam tab 358 projecting inwardly from of the outer body portion. The outer body portion 356 is, in at least one arrangement, configured to be press fit into removable engagement within a corresponding cam hole 355 formed in the end actuator closing sleeve 272. Outer body portion 356 may include a chamfered stop portion 357 that is configured to snap-fit engage a corresponding portion of the wall of the end actuator closing sleeve that defines cam hole 355. Another portion of outer body portion 356 may include having a sharply angled feature 359 formed thereover which is configured to be received within a portion of the end actuator closing sleeve 272 adjacent the cam hole 355. Other snap-fit tab arrangements may also be employed to releasably affixing the outer body portion 356 to the end actuator closing sleeve 272. In other embodiments, for example, the outer body portion the outer may not be configured for press-fit engagement with the 272 end actuator closing sleeve. In such arrangements, the outer body portions may be held in position by an annular crimp ring that extends around the circumference outside of the end actuator closing sleeve above the outside body portions of the opening cams and be crimped into place. The crimp ring serves to secure the outer body portions against the outer surface of the end actuator closing sleeve. To provide the end actuator closing sleeve with a relatively smooth or uninterrupted outer surface, which can advantageously prevent damage to adjacent tissue and/or tissue/fluid assembly, etc., among these components, the crimp ring can , actually be crimped into an annular recess that is formed in the end actuator closing sleeve.

[00241] When the opening cams 350 are installed in the end actuator closing sleeve 272, each cam tab 358 extends through an elongated slot 326 in the corresponding side wall 322 of the elongated channel 302 to be received in a slot of corresponding cam 318 on anvil 310. See Figure 6. In such an arrangement, the opening cams 350 are diametrically opposed to each other on the closing sleeve of the surgical end actuator. In use, closure tube 260 is translated distally ("DD" direction) to close anvil 310, for example, in response to actuation of closure trigger 32. Anvil 310 is closed as closure tube 260 is closed. translated in the distal "DD" direction so as to bring the distal end 275 of the end actuator closing sleeve 272 into contact with a closing shoulder 311 on the anvil body 312. In particular, the distal end 275 of the end actuator closing sleeve End actuator 272 slides over top surfaces 321 of anvil attachment arms 316 as closure tube 260 is moved distally to begin pivoting anvil 310 to a closed position. In one arrangement, for example, the closing of the anvil 310 is caused solely by the contact of the closing sleeve of the end actuator 272 with the anvil 310 and is not caused by the interaction of the opening cams with the anvil. In other embodiments, however, the opening cams could be arranged to also apply closing motions to the anvil as the closing tube 260 is moved distally. The anvil 310 is operated by proximally translating the closure tube 260 in the proximal "DP" direction, which causes the cam tabs 358 to move in the proximal "DP" direction within the cam slots 318 on the cam surfaces. 319 to pivot the anvil 310 to the open position, as shown in Figures 6 and 7.

[00242] The 300 surgical end actuator modality employs two opening cams to effect positive opening of the end actuator jaws, even when under a load. Other arrangements could possibly employ only one opening cam or more than two opening cams without departing from the character and scope of the present invention. In the illustrated example, the opening cams are removablely affixed to the end actuator closing sleeve, which facilitates the assembly or disassembly of the surgical end actuator components to the elongated drive shaft assembly. . Such configurations also permit the use of more compact or shorter knuckle joint arrangements, which allow the surgical end actuator to be more easily manipulated within a patient's confined internal spaces. To facilitate detachment of the opening cams which are snap-fitted into place, the end actuator closing sleeve can be fitted with additional holes, strategically positioned to enable a lever element to be inserted through them to force the opening cams out of the end actuator closing sleeve. In still other embodiments, the one or more opening cams may be integrally formed in the anvil actuator member or end actuator closing sleeve. For example, the one or more opening cams may each comprise a tab that is cut or otherwise formed in the wall of an anvil actuator member or end actuator closing sleeve and then flexed, crimped or permanently deformed inwards so as to engage the corresponding cam surface on the second jaw. For example, the tab can be flexed inward at a ninety degree angle to the outside wall of the end actuator closing sleeve. Such arrangements eliminate the need for separate components of the opening cams. Other variations may employ one or more pins that are attached to the second jaw and configured to slide over corresponding cam surfaces on the first jaw. The one or more pins can be pressed into the first jaw, knurled and then pressed into and/or soldered to the first jaw, for example. While the opening cam arrangements discussed above have been described in the context of a surgical end actuator that is configured to support a surgical staple cartridge and includes an anvil that is configured to move relative to the surgical staple cartridge, the reader You will recognize that opening cam arrangements can also be employed with other end actuator arrangements which have jaws movable with respect to one another.

[00243] Figures 9 and 10 illustrate an elongated drive shaft assembly designated as 200' that employs many of the features of the elongated drive shaft assembly 200 described above. In the illustrated example, the elongated driveshaft assembly 200' includes a dual pivot link arrangement designated 800 that employs a pivot lock 810 that is similar to the pivot lock 350 described above. Components of the 810 pivot lock that differ from components of the 350 pivot lock that may be necessary to understand the operation of the 350 pivot lock will be discussed in more detail below. Additional details relating to the 350 hinge lock can be found in US Patent Application Serial No. 13/803,086 entitled "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING AN ARTICULATION LOCK", now US Patent Application Publication No. 2014/0263541, the description of which is incorporated herein by reference in its entirety. Pivot Lock 810 can be configured and operated to selectively lock Surgical End Actuator 300 in various pivot positions. This arrangement allows the surgical end actuator 300 to be pivoted, or pivoted, relative to the driveshaft closure tube 260 when pivot latch 810 is in its unlocked state.

[00244] As previously discussed, when the proximal pivot driver 230 is operatively engaged with the trigger member 220 via the clutch system 400, the trigger member 220 can move the proximal pivot driver 230 in a proximal direction and /or distal. For example, proximal movement of trigger member 220 can move proximal pivot driver 230 proximally, and similarly, distal movement of trigger member 220 can move proximal pivot driver 230 distally. Movement of proximal hinge driver 230, either proximally or distally, can unlock hinge lock 810, as described in more detail below. As seen in Figure 9, for example, the elongated drive shaft assembly 200' includes a drive shaft structure 812 that is somewhat coextensive with a first distal pivot driver 820. A first distal pivot driver 820 is supported within the elongated drive shaft assembly 200' for selective longitudinal displacement in a distal "DD" direction and a proximal "DP" direction in response to corresponding joint control movements applied thereto. The driveshaft structure 812 includes a distal end portion 814 having thereon a downwardly projecting pivot pin (not shown) that is adapted to be pivotally received within a pivot hole 328 formed in the proximal end portion 320 of the elongated channel 302. See, for example, the similar arrangement shown in Figure 5. Such an arrangement facilitates pivotal displacement of the elongated channel 302 of the surgical end actuator 300 relative to the drive shaft structure 812 about of a pivot axis B-B that is defined by the pivot hole 328. As indicated above, the pivot axis B-B is transverse to the axis SA-SA of the driveshaft that is defined by the elongated driveshaft assembly 200' .

[00245] Again with reference to Figure 9, the first distal hinge driver 820 includes a first cavity, or distal cavity, locking 822 and a second cavity, or proximal cavity, locking 824, the first locking cavity 822 and the second locking cavity 824 can be separated by an intermediate frame element 825. The hinge lock 810 can additionally include at least one first locking element 826 at least partially positioned within the first locking cavity 822, which can be configured to inhibit or prevent proximal movement of the first distal hinge driver 820. In the embodiment illustrated in Figure 9, for example, there are three first locking elements 826 positioned within the first locking cavity 822, which may all act in a similar manner. , in parallel, and can act cooperatively as a single locking element. Other embodiments are contemplated that may use more or less than three first locking elements 826. Similarly, the pivot latch 810 may additionally include at least one second locking element 828 at least partially positioned within the second locking cavity 824, which may be configured to inhibit or prevent distal movement of the first distal hinge driver 820. With respect to the particular embodiment illustrated in Figure 9, there are three second locking elements 828 positioned within the second locking cavity 824, which can all act in a similar way, in parallel, and can act cooperatively as a single blocking element. Other embodiments are contemplated that may use more or less than three second locking elements 828.

[00246] In addition to the above, referring primarily to Figure 9, each first locking element 826 is slidably supported on a frame rail 830 and includes locking tab 827. Each of the first locking elements 826 has a locking opening therein (not shown) for receiving the frame rail 830 therethrough. The locking tang 827 may be disposed within the first locking cavity 822 and the locking opening may be slidably engaged with a rail of frame 830 mounted on driveshaft frame 812. The first locking elements 826 are not oriented in a perpendicular arrangement with frame rail 830; rather, the first locking elements 826 are arranged and aligned at a non-perpendicular angle to the frame rail 830 such that the edges or side walls of the locking apertures are engaged with the frame rail 830. , the interaction between the side walls of the locking apertures and the frame rail 830 can create a resistance or frictional force therebetween which can inhibit relative movement between the first locking elements 826 and the frame rail 830 and, as a result, resist a proximal compressive force P applied to the first distal pivot actuator 820. Stated another way, the first locking elements 826 can prevent, or at least inhibit, rotation of the surgical end actuator 300 in one direction indicated by arrow 821. If a torsional force is applied to end actuator 300 in the direction of arrow 821, a proximal compressive force P will be transmitted to the distal hinge driver 820. The proximal compressive force P will only serve to dampen the locking engagement between the first locking elements 826 and the frame rail 830. More particularly, the proximal compressive force P may be transmitted to the terminals 827 of the first locking elements 826, which can cause the first locking elements 826 to rotate and decrease the defined angle between the first locking elements 826 and the frame rail 830 increasing, as a result, the grip between the side walls of the locking apertures and the frame rail 830. Finally, then, the first locking elements 826 can lock the movement of the first distal pivot driver 820 in one direction.

[00247] To release the first locking elements 826 and allow the surgical end actuator 300 to be rotated in the direction indicated by the arrow 821, the proximal pivot driver 230 can be pulled proximally to straighten, or substantially straighten, the first locking elements locking 826 in a perpendicular, or at least substantially perpendicular, position. In this position, the pinch, or resisting force, between the side walls of the locking apertures and the frame rail 830 can be sufficiently reduced, or eliminated, so that the first distal pivot driver 820 can be moved proximally. To straighten the first locking members 826, the proximal pivot driver 230 can be pulled proximally so that a distal arm 233 of the proximal pivot driver 230 contacts the first locking members 826 to pull and rotate the first locking members. locking 826 to its straightened position. In various circumstances, the proximal pivot driver 230 can continue to be pulled proximally until a proximal arm 235 extending therefrom contacts or adjoins a proximal pivot wall 832 of the first distal pivot driver 820, and pull the Distal Pivot Driver 820 proximally to pivot the Surgical End Plunger 300. Essentially, a proximal pulling force can be applied from the Proximal Pivot Driver 230 to the Distal Pivot Driver 820, through the interaction between the Proximal Arm 235 and the proximal drive wall 832, such pulling force can be transmitted through the first distal drive member 820 to the end actuator 300, as will be described in more detail below, to pivot the end actuator 300 in the indicated direction by arrow 821. After end actuator 300 has been properly pivoted in the direction of set At 821, proximal pivot driver 820 can be released, under various circumstances, to allow pivot lock 810 to re-lock distal pivot member 820 and end actuator 300 in position.

[00248] Simultaneously with the above, again with reference to Figures 9, the second locking elements 828 can remain in an oblique position while the first locking elements 826 are locked and unlocked as described above. The reader will recognize that although second locking elements 828 are disposed and aligned at an angle to drive shaft rail 830, second locking elements 828 are not configured to prevent, or at least substantially prevent, movement. first distal pivot driver 820. When the first distal pivot driver 820 and the pivot lock 810 slide proximally as described above, the second locking elements 828 can slide distally along the frame rail 830 without, in several circumstances, alter, or at least substantially alter, its oblique alignment with respect to the frame rail 830. Although the second locking elements 828 can perform proximal movement of the first distal hinge driver 820 and the hinge lock 810, the second locking elements lockout 828 can be configured to selectively prevent, or at least inhibit, distal movement of the first distal pivot driver 820, as discussed in more detail below.

[00249] Each second locking element 828 can comprise a locking opening (not shown) and a locking tang 829. The locking tang 829 can be arranged inside the second locking cavity 824 and the locking opening can be engaged in sliding manner with frame rail 830 mounted on driveshaft frame 812. Frame rail 830 extends through openings in second locking elements 828. Second locking elements 828 are not oriented in a perpendicular arrangement with the frame rail 830; rather, the second locking elements 828 are arranged and aligned at a non-perpendicular angle to the frame rail 830 such that the edges or side walls of the locking apertures are engaged with the frame rail 830. , the interaction between the side walls of the locking apertures and the frame rail 830 can create a resistance or frictional force therebetween which can inhibit relative movement between the second locking elements 828 and the frame rail 830 and, as a result, resist a distal force D applied to the first distal pivot driver 820. Stated another way, the second locking elements 828 can prevent, or at least inhibit, rotation of the surgical end actuator 300 in a direction indicated by the arrow 823. If a torsional force is applied to end actuator 300 in the direction of arrow 823, a distal pulling force D will be transmitted to the first end actuator. distal linkage 820. The distal pulling force D will only serve to cushion the locking engagement between the second locking members 828 and the frame rail 830. More particularly, the distal pulling force D may be transmitted to the terminals 829 of the second locking elements 828, which can cause the second locking elements 828 to rotate and decrease the angle defined between the second locking elements 828 and the frame rail 830 increasing, as a result, the tightness between the side walls of the openings locking and frame rail 830. Finally, then, second locking elements 828 can lock movement of first distal pivot driver 820 in one direction.

[00250] To release the second locking elements 828 and allow the surgical end actuator 300 to be pivoted in the direction indicated by the arrow 823, the proximal pivot driver 230 can be pushed distally to straighten, or substantially straighten, the second locking elements locking 828 in a perpendicular, or at least substantially perpendicular, position. In that position, the pinch, or resisting force, between the sidewalls of the locking apertures and the frame rail 830 can be sufficiently reduced, or eliminated, so that the first distal pivot driver 820 can be moved distally. To straighten the second locking members 828, the proximal pivot driver 230 can be pushed distally so that the proximal arm 235 of the proximal pivot driver 230 contacts the second locking members 828 to push and rotate the second locking members. locking 828 to its straightened position. In various circumstances, the proximal pivot driver 230 can continue to be pushed distally until the distal arm 233 extending therefrom contacts or adjoins a distal driver wall 833 of the first distal pivot driver 820, and push the first distal pivot driver 820 distally to pivot the surgical end actuator 300. Essentially, a distal compressive force can be applied from the proximal pivot driver 230 to the first distal pivot driver 820, through the interaction between the arm distal drive wall 233 and the distal drive wall 833, such compressive force may be transmitted through the first distal pivot driver 820 to pivot the end actuator 300 in the direction indicated by the arrow 823. After the surgical end actuator 300 has properly articulated in the direction of arrow 823, the first distal articulation driver 820 can be released, under various circumstances, to allow the hinge lock 810 to re-lock the first distal hinge driver 820 and the surgical end actuator 300 in position.

[00251] Simultaneously with the above, the first locking elements 826 can remain in an oblique position while the second locking elements 828 are locked and unlocked as described above. The reader will recognize that although the first locking elements 826 are disposed and aligned at an angle to the drive shaft rail 830, the first locking elements 826 are not configured to prevent, or at least substantially prevent, movement. distal of the first distal pivot driver 820. When the first distal pivot driver 820 and the pivot lock 810 slide distally as described above, the first locking members 826 can slide distally along the frame rail 830 without, in several circumstances, alter, or at least substantially alter, its oblique alignment with respect to frame rail 830. Although first locking elements 826 may effect distal movement of first distal pivot driver 820 and pivot lock 810, first pivot elements 810 locks 826 are configured to selectively prevent, or at least inhibit, the proximal movement of the first distal pivot driver 820, as discussed above.

[00252] In view of the above, the articulation lock 810, in locked condition, can be configured to oppose the proximal and distal movements of the first distal articulation driver 820. In terms of resistance, the articulation lock 810 can be configured to prevent, or at least substantially prevent, proximal and distal movement of the first distal hinge driver 820. Collectively, proximal movement of the first distal hinge driver 820 is blocked by the first locking elements 826 when the first locking elements 826 are in their locked orientation, and distal movement of the first distal pivot driver 820 is blocked by second locking elements 828 when second locking elements 828 are in their locked orientation, as described above. Stated another way, the first locking elements 826 comprise a first unidirectional latch, and the second locking elements 828 comprise a second unidirectional latch, which lock in opposite directions.

[00253] Discussed in connection with the exemplary embodiment illustrated in Figures 9 and 10, an initial proximal movement of the proximal pivot driver 230 can unlock the proximal movement of the first distal pivot driver 820 and the pivot lock 810, whereas a further proximal movement of the proximal pivot driver 230 can drive the first distal pivot driver 820 and the pivot lock 810 proximally. Similarly, an initial distal movement of the proximal pivot driver 230 can unlock the distal movement of the first distal pivot driver 820 and the pivot lock 810, whereas a further distal movement of the proximal pivot driver 230 can engage the first distal hinge driver 820 and hinge lock 810 distally. Such a general concept is discussed in connection with several additional exemplary embodiments presented below. To the extent that such discussion is duplicated, or generically cumulative, with the discussion provided above, such discussion will not be reproduced for the sake of brevity.

[00254] Still referring to Figures 9 and 10, the double pivot link arrangement 800 is configured to establish an "advance/pull" arrangement when a pivot force is applied to such arrangement through the first distal pivot driver 820 As can be seen from these figures, the first distal pivot driver 820 has a first driver rack 842 formed therein. A first pivot rod 844 projects distally out of the first distal pivot driver 820 and is attached to a first movable coupler 850 which is attached to the first distal pivot driver 820 by a first ball joint 852. The first coupler 850 is also pivotally pinned to the proximal end portion 320 of the elongated groove 302 by a first pin 854, as seen in Figure 9. The double pivot link arrangement 800 further comprises a second distal pivot driver 860 having a second drive rack 862 formed therein. The second distal pivot driver 860 is movably supported within the elongated drive shaft assembly 200' for longitudinal displacement in the distal "DD" direction and the proximal "DP" direction. A second pivot rod 864 projects distally out of the second distal pivot driver 860 and is attached to a second movable coupler 870 which is attached to the second distal pivot driver 860 by a second ball joint 872. The second coupler 870 is also pivotally pinned to the proximal end portion 320 of the elongated channel 302 by a second pin 874, as seen in Figure 9. As seen in Figure 9, the first coupler 850 is attached to the elongated channel 302 at one side of the SA axis of the drive shaft, and the second coupler 870 is attached to the elongated groove 302 on an opposite side of the axis of the drive shaft. Thus, by pulling on one of the couplers 850, 870 and simultaneously pushing on the other coupler 850, 870, the surgical end actuator 300 will pivot about the pivot axis B-B with respect to the elongated drive shaft assembly 200'. In the illustrated arrangements, although the couplers 850, 870 that facilitate relative movement between the first and second distal pivot drivers 820, 860, respectively, and the elongated groove 302 are fabricated from relatively rigid components, other embodiments may employ arrangements relatively "flexible" coupler. For example, cables, etc., may extend through one or both of the distal linkage drivers 820, 860, couplers 850, 870, and ball joints 852, 872 to be coupled with the elongated groove to facilitate the transfer of motions from articulation to them.

[00255] As can be seen in Figures 9 and 10, a proximal pinion gear 880 and a distal pinion gear 882 are centrally arranged between the first drive rack 842 and the second drive rack 862 and are in meshed engagement with each other . In alternative embodiments, only one pinion gear or more than two pinion gears can be employed. In this way, at least one pinion gear is employed. The proximal pinion gear 880 and the distal pinion gear 882 are pivotally supported on the drive shaft structure 812 for free rotation relative thereto, so that when the first distal pivot driver 820 is moved in the distal "DD" direction , pinion gears 870, 872 serve to drive the second distal pivot driver 860 in the proximal "DP" direction. Similarly, when the first distal pivot driver 820 is pulled in the proximal "DP" direction, pinion gears 880, 882 drive the second distal pivot driver 860 in the distal "DD" direction. Thus, to pivot the end actuator 300 about the pivot axis B-B in the direction of the arrow 821, the pivot driver 230 is operatively engaged with the trigger member 220 through the clutch system 400, so that trigger member 220 moves or pulls proximal pivot driver 230 in the proximal "DP" direction. Movement of the proximal pivot driver 230 in the proximal direction moves the first distal pivot driver 820 also in the proximal direction. As the first distal pivot driver 820 moves in the proximal direction, the pinion gears 880, 882 serve to drive the second distal pivot driver 860 in the distal "DD" direction. This movement of the first and second distal pivot actuators 820, 860 causes the surgical end actuator 300, and more specifically, the elongated groove 302 of the surgical end actuator 300, to rotate about the pivot axis B-B in the direction of pivot of arrow 821. Conversely, to pivot end actuator 300 in the direction of arrow 823, trigger member 220 is actuated to push first distal pivot driver 820 in the distal "DD" direction. As the first distal pivot driver 820 moves in the distal direction, the pinion gears 880, 882 serve to drive the second distal pivot driver 860 in the proximal "DP" direction. This movement of the first and second distal pivot actuators 820, 860 causes the surgical end actuator 300, and more specifically, the elongated groove 302 of the surgical end actuator 300, to rotate about the pivot axis B-B in the direction of arrow joint 823.

[00256] The 800 Rigid Link Double Hinge Arrangement and its variations may allow for a surgical end actuator with a greater range of articulation when compared to other pivotable surgical end actuator configurations. In particular, the rigid link double pivot arrangements disclosed herein can facilitate pivot ranges that exceed the 45 to 50 degree ranges that are commonly achieved by other pivot end actuator arrangements. The use of at least one pinion gear to interface the distal linkage drivers allows the end actuator to be "pushed" and "pulled" into position, and may also reduce the amount of "backlash" or unwanted or undesired movement. intended purpose of the end actuator during use. The rigid link double pivot arrangements disclosed herein also comprise a pivot system that has improved strength characteristics as compared to other pivot system arrangements.

[00257] As briefly discussed above, the firing drive shaft intermediate portion 222 is configured to operatively interface with a set of distal cutting or firing bars 280. The distal firing bar 280 may comprise a laminated structure. Such an arrangement allows the distal trigger bar 280 to flex sufficiently when the surgical end actuator 300 is pivoted about the pivot axis B-B. The distal trigger bar 280 is supported for axial movement within the drive shaft assembly 200' and is slidably supported by two vertical side support walls 330 formed at the proximal end of the elongated channel 302. Referring to Figure 11, the Distal trigger bar 280 is attached to a trigger member 900 that includes a vertically extending trigger member body 902 having a tissue cutting surface or blade 904 therein. mounted inside the surgical staple cartridge 304 for actuating contact with the trigger member 900. As the trigger member 900 is driven distally through the cartridge body 304, the wedge surfaces 912 of the wedge slider 910 come into contact with each other. contacting the staple drivers to actuate upwardly the drivers and the surgical staples supported therein on the cartridge body 304.

[00258] End actuators that employ trigger bars or trigger members and that have the ability to pivot over a range of, for example, forty-five degrees have numerous challenges to overcome. To facilitate operational articulation of these end actuators, the trigger member or trigger bar needs to be flexible enough to accommodate this range of articulation. However, the firing bar or firing member also needs to avoid deformation when it encounters firing compressive loads. To provide additional support to the firing bar or firing member, various "support" or "eruption" plate arrangements have been developed. Several of these provisions are set forth in US Patent No. 6,964,363, entitled "SURGICAL STAPLING INSTRUMENT HAVING ARTICULATION JOINT SUPPORT PLATES FOR SUPPORTING A FIRING BAR", and US Patent No. 7,213,736, entitled "SURGICAL STAPLING INSTRUMENT INCORPORATING AN ELECTROACTIVE POLYMER ACTUATED FIRING BAR TRACK THROUGH AN ARTICULATION JOINT", the descriptions of which are incorporated herein by reference in their entirety. Breach plates that provide substantial resistance to deformation are difficult to flex in general, which adds to the forces that the knuckle joint system needs to accommodate. Other firing bar support arrangements are disclosed in US Patent Application Serial No. 14/575,117 entitled "SURGICAL INSTRUMENTS WITH ARTICULATABLE END EFFECTORS AND MOVABLE FIRING BEAM SUPPORT ARRANGEMENTS", the description of which is incorporated herein by reference in its entirety.

[00259] With reference to Figures 11 to 15, the elongated drive shaft assembly 200' further comprises a set of multiple support links 920 to provide lateral support to the distal firing bar 280 when the surgical end actuator 300 is pivoted in around the geometric axis B-B of articulation. As seen in Figure 11, the multiple support link assembly 920 comprises a central support member 922 that is movably coupled to the surgical end actuator 300 as well as the elongated drive shaft assembly 200'. For example, the central support member 922 is pivotally pinned to the proximal end 320 of the elongated channel 302, pivotally thereabout about a pivot axis PA. As seen in Figure 11, the central support member 922 includes a distally projecting tab 923 having within it a distal pivot hole 924 for receiving a vertical support pin 332 that is formed over the proximal end portion. 320 of the elongated channel 302. As further seen in Figure 11, the central support member 922 further includes a proximally projecting tab 926 that has an elongated proximal slot 928 therein. Proximal slot 928 is configured to slidably receive a center support pin 816 which is formed over frame portion 812. Such an arrangement allows center support member 922 to pivot and move axially with respect to said axle assembly. 200' elongated drive, for example. As seen in Figures 11 to 13, the central support member 922 further includes a centrally disposed slot 930 for movably receiving the distal firing bar 280 therethrough.

[00260] Still referring to Figures 11 to 15, the multiple support link assembly 920 further comprises a proximal support link 940 and a distal support link 950. The proximal support link 940 includes an elongated proximal body 942 having a rounded proximal tip portion 943 and a rounded distal tip portion 944. The proximal support link 940 further includes a pair of downwardly projecting opposing proximal support walls 945, 946 that define a proximal slot 947 therebetween. Similarly, distal support link 950 includes an elongated distal body 952 having a rounded proximal tip portion 953 and a rounded distal tip portion 954. Distal support link 950 further includes a pair of opposing distal support walls downwardly projecting 955, 956 defining a distal slit 957 therebetween. As seen in Figure 14, the flexible distal trigger bar 280 is configured to extend between the proximal support walls 945, 946 of the proximal support link 940 and the distal support walls 955, 956 of the distal support link 950 The proximal support wall 945 includes an inwardly facing proximal arcuate surface 948, and the proximal support wall 946 includes an inwardly facing proximal arcuate support surface 949 opposite said inwardly facing proximal arcuate surface 948. The proximal arches 948, 949 serve to provide lateral support to the lateral side portions of a proximal portion of the flexible distal trigger bar 280 as it flexes during articulation of the end actuator and passes through the pivot joint. Surfaces with rounded edges may match the outer radius of the distal firing bar 280, depending on the direction of articulation. Similarly, distal support wall 955 includes a distal inwardly arcuate surface 958, and distal support wall 956 includes a distal inwardly arcuate support surface 959 opposite said distal arcuate surface 958. Distal arches 958, 959 serve to provide lateral support to the lateral side portions of a distal portion of the distal trigger bar 280 as it flexes during articulation of the surgical end actuator 300 and passes through the pivot joint. Distal arcuate surfaces 958, 959 may correspond to the outer radius of distal firing bar 280 depending on the direction of articulation. As seen in Figures 12 and 13, the distal end 217 of the driveshaft center column 210 includes a distally facing arcuate center column cavity 218 into which the rounded proximal tip portion 943 of the proximal support link 940 extends. The rounded distal tip portion 944 of the proximal support link 940 is hingedly received in an arcuate proximal cavity 932 in the central support member 922. Furthermore, the rounded proximal tip portion 953 of the distal support link is received in a arched distal support member cavity 934 at the distal end of center support member 922. The rounded distal tip portion 954 of distal support link 950 is movably received within a V-shaped channel cavity 334 formed in the walls vertical side support brackets 330 formed at the proximal end 320 of the elongated channel 302.

[00261] The multiple support link assembly can provide greater lateral support to the flexible laminates of the firing bar when the bar is flexed at greater articulation angles. Such arrangements also prevent deformation of the firing bar under high firing loads and at relatively high articulation angles. The elongated support links, in connection with the central support member, serve to provide improved lateral support to the firing bar in the pivot zone, compared to many prior art support arrangements. In alternative arrangements, the support links can be configured to actually engage with the central support member at various pivot angles. U-shaped support links facilitate installation and serve to provide support to the flexible support bars on each lateral side, as well as the top of the bar, to prevent the firing bar from bending upwards during firing while being pivoted .

[00262] In embodiments where the firing member includes a tissue cutting surface, it may be desirable for the elongated drive shaft assembly to be configured to prevent accidental advancement of the firing member, unless a firing cartridge is unused staple cartridge is properly supported in the elongated groove 302 of the surgical tip actuator 300. If, for example, there is no staple cartridge present and the trigger member is advanced distally through the tip actuator, the tissue would be cut, but not stapled. Similarly, if a used staple cartridge (i.e., a staple cartridge in which at least some staples have already been fired) is present in the end actuator and the firing member is advanced, the tissue would be cut, but it may not be. be completely stapled, if stapled. It will be recognized that such occurrences could lead to undesirable catastrophic outcomes during the surgical procedure. US Patent No. 6,988,649 entitled "SURGICAL STAPLING INSTRUMENT HAVING A SPENT CARTRIDGE LOCKOUT", US Patent No. 7,044,352 entitled "SURGICAL STAPLING INSTRUMENT HAVING A SINGLE LOCKOUT MECHANISM FOR PREVENTION OF FIRING" and US Patent No. 7,380 695 entitled "SURGICAL STAPLING INSTRUMENT HAVING A SINGLE LOCKOUT MECHANISM FOR PREVENTION OF FIRING" each discloses various locking arrangements of the firing member. Each of these US patents is incorporated herein by reference in its entirety.

[00263] Such locking arrangements can be effectively employed with a variety of surgical stapling instruments. Such arrangements, however, may not be particularly suitable for use in connection with the various surgical stapling instruments disclosed herein which employ relatively compact and short articulated joint configurations. For example, Figures 15 through 19 illustrate a surgical end actuator 300 that is operatively attached to an elongated drive shaft assembly 200' by a pivot joint 270'. The elongated driveshaft assembly 200' defines an SA-SA axis of the driveshaft and the pivot joint 270' facilitates selective articulation of the surgical end actuator 300 relative to the elongated driveshaft assembly 200' about a pivot axis B-B that is transverse to the axis SA-SA of the drive shaft. In the illustrated embodiment, a dual rigid link pivot arrangement 800 (as described above) may be employed to selectively apply pivot motions to the surgical end actuator 300. The elongated drive shaft assembly 200' comprises a distal trigger bar 280 of the type described above that is selectively movable axially within the surgical end actuator 300 from an initial position to an end position upon application of firing motions thereto. Distal trigger bar 280 extends through pivot joint 270' and is configured to flex about pivot axis B-B to accommodate surgical end actuator pivot 300 in the various ways described herein. In the illustrated embodiment, the pivot joint 270' includes a central support member 922 that is movably attached to the distal end 814 of the drive shaft structure 812 and the proximal end 320 of the elongated groove 302. center support member 922 includes a distally projecting tab 923 having within it a distal pivot hole 924 for receiving a vertical support pin 332 formed over proximal end portion 320 of elongated groove 302. Center support member 922 includes additionally a proximally projecting flap 926 having an elongated proximal slot 928 therein. Proximal slot 928 is configured to slidably receive a center support pin 816 formed over frame portion 812. Center support 922 further includes a centrally disposed slot 930 for axially receiving the distal firing bar 280 therethrough. The central support member 922 provides lateral support to the distal firing bar 280 during distal articulation of the surgical end actuator 300 about the pivot axis B-B while at the same time facilitating the axial passage of the distal firing rod 280 through the same during shooting.

[00264] In the illustrated embodiment, a firing bar locking assembly 980 is employed to prevent the distal firing bar 280 from being accidentally advanced from the initial position to the final position, unless an unfired surgical staple cartridge 304 has been operatively seated in the cartridge support member or elongated raceway 302. As seen in Figures 15 to 19, the firing bar locking assembly 980 in one form includes a locking cam or detent 281 that is formed on the bar distal firing pin 280 so as to project upwardly from the top surface thereof. A shifter 984 is supported on and attached to central support member 922. As seen in Figure 16, for example, shifter 984 is substantially planar and includes a window 985 that is configured to accommodate the locking cam. 281 within it during articulation of the surgical end actuator 300. Thus, when the surgical end actuator 300 is pivoted about the pivot axis B-B, the displacement element 984 does not apply any changing force or load to the bar. of distal trigger 280. This feature can avoid increasing the amount of pivot forces that need to be generated to pivot the surgical end actuator 300 about the pivot axis B-B. Displacement member 984 may be tack welded to central support member 922, or secured thereto by other fastening methods such as screws, pins, adhesive, etc. Window 985 may also define a locking band or portion 986 which serves to contact locking cam 281 when distal firing bar 280 is in the home position. The locking cam 281 may be formed with a distally facing inclining surface 283 and a proximally facing inclining surface 285 to reduce the amounts of firing force and retracting force required to axially move the distal firing bar. 280. See Figure 19.

[00265] As described above, the distal firing bar 280 is operatively attached to a firing member 900 that includes a tissue cutting surface 904 on the firing member body 902. In alternative arrangements, the tissue cutting surface may be attached to or otherwise formed on or supported directly by a portion of the distal firing rod 280. In the illustrated arrangement, a laterally extending base 905 is formed at the bottom of firing member body 902. trigger 902 further includes a wedge slider engagement member 906 that is configured to engage a wedge slider with the surgical staple cartridge 304, as will be discussed in more detail below.

[00266] Figure 18 illustrates an "unused" or "unfired" surgical staple cartridge 304 that has been properly installed in the elongated groove 302. As can be seen in this figure, the wedge slider 910 is located in a "no "fired" (most proximal) on the surgical staple cartridge 304. The wedge slider 910 includes a proximally facing angled surface 914 that is configured to engage the wedge slider engagement member 906 with the firing member 900 to thereby Accordingly, bias the triggering member 900 in an upward direction represented by the arrow 988, so that the bottom and base portion 905 of the triggering member 900 is free to push aside a blocking wall 307 formed by a locking opening 303 in the bottom of the elongated channel 302. When in this position, the distal firing bar 280 and firing member 900 can be advanced distally within the elongated channel 302 and, more precisely, the clip cartridge 18 to the final position with the surgical staple cartridge 304, all surgical staples that were operatively supported in the surgical staple cartridge 304 being ejected by the wedge slider 910. In such arrangements, after firing member 900 is fully deployed (i.e., fully advanced from its initial position to its final position within surgical staple cartridge 304), firing member 900 is retracted back to the starting position shown. in Figure 19. As the wedge slider 910 has been advanced distally to the final position on the staple cartridge 304 by the trigger member 900 and the trigger member 900 is not attached to the wedge slider 910, when the trigger member 900 is retracted back in the home position, the wedge slider 910 remains in the final position within the surgical staple cartridge 304 and does not return with the trigger member. ro 900 to the starting position. By this, the surgical staple cartridge 304 is said to be in a "used", "spent", or "fired" state. As seen in Figure 19, when there is no wedge slider present in an unfired state, the bottom of the body portion 902 as well as the base 905 of the firing member 900 extend into the locking opening 303 at the bottom of the elongated groove 302 due to displacement motion applied by the locking band 986 from the displacement element 984 to the locking cam 281 on the distal firing bar 280. , body portion 902 and/or base 905 would contact wall 307 in elongated channel 302 and be prevented from moving from the initial position to the final position. In this way, the firing bar locking assembly 980 prevents the advancement of the distal firing bar 280 as well as the firing member 900 from the initial position to the final position unless an unfired or unused surgical staple cartridge has been removed. been properly/operationally installed in the elongated groove of the surgical end actuator. It will also be recognized that the firing bar locking assembly 980 also prevents the advancement of the distal firing bar 280 when no staple cartridge is installed in the elongated groove 302. In addition to accommodating the swivel of the surgical end actuator 300 around the pivot B-B axis without applying additional load to the distal trigger bar, which could result in greater pivot forces being required to pivot the surgical end actuator, the trigger bar lock assembly 980 does not place any additional load on the triggering member and/or the distal trigger bar after being advanced distally past the locking wall, regardless of whether the end actuator jaws are open or closed.

[00267] Figure 20A illustrates another embodiment of a pivotable surgical end actuator 300' that employs a trigger bar locking assembly 980' comprising a displacement member 984' that is mounted within the end actuator closing sleeve 272 As seen in this figure, for example, displacement member 984' applies a shifting force to an inclined or tapered portion 283' of distal firing bar 280'. The firing bar locking assembly 980' operates in the same manner as described above with respect to the firing bar locking assembly 980. More specifically, the displacement member 984' applies a shifting force to the distal firing bar. 280' which urges the distal firing bar 280' and the firing member attached thereto in a downward motion into the elongated channel. Unless an unused surgical staple cartridge with a wedge slider or other staple ejector member in an unfired position has been properly installed within the elongated groove or support member of the cartridge so as to operatively engage with the firing member or the trigger bar to move the trigger member/rail bar out of engagement with the blocking wall, the trigger member/rail bar would be prevented from being axially advanced from the initial position to the final position.

[00268] Figures 21 to 25 illustrate a portion of another elongated drive shaft assembly 1200 that is similar to the elongated drive shaft assembly 200 described above, with the exception of several differences discussed in more detail below. The components of the elongated driveshaft assembly 1200 that have been discussed in detail above are designated by similar reference numerals and, for the sake of brevity, will not be discussed further in more detail than may be necessary to understand the operation of the assembly. of drive shaft 1200 when, for example, employed with portions of the surgical instrument 10 as described above. As seen in Figure 21, the elongated driveshaft assembly 1200 includes a pivot lock 1810 that is substantially similar to the pivot lock 810 and functions in essentially the same manner. As seen in Figure 22, the elongated drive shaft assembly 1200 includes a drive shaft structure 1812 having a proximal cavity 1815 that is configured to movably support the proximal portion 1821 of a first distal pivot driver 1820 inside. The first distal joint driver 1820 is movably supported within the elongated drive shaft assembly 1200 for longitudinal selective displacement in a distal "DD" direction and a proximal "DP" direction in response to joint control movements applied thereto. . Drive shaft structure 1812 further includes a distal end portion 1814 having a pivot pin 1818 formed thereon. Pivot pin 1818 is adapted to be pivotally received within a pivot hole (not shown) in a proximal end portion 1320 of an elongated groove 1302 of a surgical end actuator 1300. Such an arrangement facilitates pivotal displacement ( i.e., the hinge) of the elongated raceway 1302 relative to the driveshaft frame 1812 about a pivot axis B-B defined by the pivot hole and pin 1818. The driveshaft frame 1812 further includes a cavity centrally disposed 1817 and a distal notch 1819 that is situated between the distal end 1814 and the centrally disposed cavity 1817.

[00269] The drive shaft assembly 1200 additionally includes a second distal pivot driver 1860 comprising an endless element 1862 that is rotatably seated on a proximal pulley 1840 and a distal pulley 1340. Still referring to Figure 22, the pulley The proximal pulley 1840 is rotatably seated on a pulley spindle 1842 that is mounted within the centrally disposed cavity 1817 within the driveshaft structure 1812. The distal pulley 1340 is non-rotatably supported or formed over the proximal end 1320 of the elongated groove 1302 of the surgical end actuator 1300. In one form, the endless element 1862 comprises a wire that is fabricated from stainless steel, tungsten, aluminum, titanium, etc., for example. The yarn can be of braided construction or multiple strands with varying amounts of strands to achieve desired levels of tensile strength and flexibility. In various arrangements, for example, wire 2382 can have a diameter in the range of 0.08 cm to 0.20 cm (0.03 inch to 0.08 inch) and more preferably in the range of 0.13 to 0.08 inch. 0.20 cm (0.05 to 0.08 inch). A preferred wire can, for example, be made from 300 series stainless steel - medium hard to full hard. In various arrangements, the wire may also be coated with, for example, Teflon®, copper, etc., for improved lubricity and/or to reduce stretching, for example. A first pin 1863 is attached to one end of the wire and a second pin 1864 is attached to the other end of the wire, for example by crimping. The wire is stretched under tension while the ends and/or pins 1863, 1864 are welded, glued, mechanically fastened, etc., together to form the endless element 1862. The spindle 1842 may comprise a cam assembly that engages the pulley proximal 1840 in order to move it proximally. Other forms of tensioning arrangements, such as track tensioners, turnbuckle arrangements, etc., may also be employed to pull the 1862 worm.

[00270] Still referring to Figure 22, the endless element 1862 is coupled to a distal end 1821 of the first distal pivot driver 1820 by a coupler assembly 1830. The coupler assembly 1830 comprises a coupler upper portion 1832 formed in the distal end 1822 of the first distal pivot driver 1820 and a lower coupler portion 1834. Lower coupler portion 1834 is formed with two receptacles 1835 that are configured to receive pins 1862, 1864 therein. A pair of attachment pins 1836 are configured to be pressed into holes 1837 in the upper portion of coupler 1832 to secure together the two coupler portions 1832 and 1834. Other arrangements of fasteners, screws, rivets, adhesive, etc., may be employed. . When endless member 1862 is seated over pulleys 1840 and 1340, coupler assembly 1830 is free to move axially within distal notch 1819 on drive shaft structure 1812 in response to axial movement of first distal pivot driver 1820 Pivot motions generated by axial movement of the first distal pivot driver 1820 are transferred to the second distal pivot driver 1860 or the endless element 1862. A ball or attachment shoulder 1866 is attached to the endless element 1862 and is received in a groove or rail 1342 formed in the distal pulley 1340. In this way, movement of the endless element 1862 is transferred to the surgical end actuator 1300 and, more specifically, to the elongated groove 1302 of the surgical end actuator 1300 to pivot the end actuator. end around the B-B pivot axis. Thus, when the first distal pivot driver 1820 is moved in the distal "DD" direction, the worm element 1862 causes the surgical end actuator 1300 to pivot about the pivot axis B-B in the pivot direction represented by the arrow. 823. See Figure 21. Similarly, when the first distal pivot actuator 1820 is moved in the proximal "DP" direction, the worm 1862 causes the surgical end actuator 1300 to be pivoted about the axis B-B of pivot in the pivot direction represented by arrow 821. See Figures 21 and 25. As shown in Figure 21, pivot direction 823 is opposite pivot direction 821.

[00271] Figures 26 to 31 illustrate portions of another elongated drive shaft assembly 2200 that is similar to the elongated drive shaft assembly 200 described above, with the exception of several differences discussed in more detail below. The components of the elongated driveshaft assembly 2200 that were previously discussed in detail are designated by similar reference numerals and, for the sake of brevity, will not be discussed further in more detail than may be necessary to understand the operation of the assembly. of elongated drive shaft 2200 when, for example, employed with portions of the surgical instrument 10 as described above. As seen in Figure 26, the elongated driveshaft assembly 2200 includes a proximal housing or nozzle 201 comprised of the mouthpiece portions 202 and 203. The elongated driveshaft assembly 2200 further includes an anvil actuator member in the form of a closure tube 2260 that can be used to close and/or open the anvil 2310 of the surgical end actuator 2300 that is operatively attached thereto. As seen in Figure 26, the elongated driveshaft assembly 2200 includes a proximal center column 2210 that is configured to operatively interface with a pivot latch 2350. The proximal center column 2210 is configured to, um, slide support a trigger member 2220 therein and, two, slidingly support the closure tube 2260 that extends around the proximal center column 2210. The proximal center column 2210 also slidably supports a proximal pivot driver 2230. Proximal pivot driver 2230 has a distal end 2231 that is configured to operatively engage pivot latch 2350.

[00272] In the illustrated arrangement, the center column 2210 comprises a proximal end 2211 that is pivotally supported on a chassis 240. In one arrangement, for example, the proximal end 2211 of the center column 2210 has a thread 2214 formed therein for threaded attachment to a center column bearing configured to be supported within chassis 240. This arrangement facilitates rotatable attachment of proximal center column 2210 to chassis 240 so that proximal center column 2210 can be selectively rotated about an SA-axis. SA of the driveshaft relative to the chassis 240. The proximal end of the closure tube 2260 is attached to a reciprocating closure member supported on the chassis, as described in more detail above. When the elongated drive shaft assembly 2200 is operatively coupled to the surgical instrument handle or housing 10, operation of the closure trigger distally advances the closure tube 2260.

[00273] Also as noted above, the elongated driveshaft assembly 2200 further includes a trigger member 2220 that is supported for axial displacement on the center column 2210 of the driveshaft. The trigger member 2220 includes a trigger drive shaft intermediate portion 2222 which is configured to connect to a set of distal cutting or firing rods 2280. See Figure 27. The trigger drive shaft intermediate portion 2222 may include a longitudinal slot 2223 at its distal end which may be configured to receive a tab on the proximal end of the distal firing bar assembly 2280. The longitudinal slot 2223 and the proximal end of the distal firing bar assembly 2280 are dimensionable and configured to allow relative movement therebetween, and may comprise a sliding joint. The sliding joint can allow the intermediate portion of firing drive shaft 2222 of firing drive 2220 to be moved to pivot end actuator 300 without moving, or at least substantially moving, the set of distal firing bars 2280. the surgical end actuator 2300 has been properly oriented, the intermediate portion of the firing drive shaft 2222 can be advanced distally until a proximal side wall of the longitudinal slot 2223 contacts the tab for advancing the distal firing bar assembly 2280 and firing a clip cartridge that can be supported on end actuator 300. The proximal center column 2210 is also coupled to a distal center column 2212.

[00274] Similar to the elongated drive shaft assembly 200, the illustrated elongated drive shaft assembly 2200 includes a clutch assembly 2400, which can be configured to selectively and releasably couple the proximal pivot driver 2230 to the member triggering member 2220. In one form, the clutch assembly 2400 comprises a locking ring or sleeve 2402 positioned around the triggering member 2220, the locking sleeve 2402 being pivotable between an engaged position where the triggering sleeve locking sleeve 2402 couples proximal pivot driver 2230 to trigger member 2220, and a disengaged position, in which proximal pivot driver 2230 is not operatively coupled to trigger member 2220. When locking sleeve 2402 is in its engaged position, distal movement of trigger member 2220 can move proximal pivot driver 2230 distally and correspondingly proximal movement of trigger member 2230. trigger member 2220 can proximally move proximal pivot driver 2230. When locking sleeve 2402 is in its disengaged position, movement of trigger member 2220 is not transmitted to proximal pivot driver 2230 and, as a result, trigger member 2220 trigger 2220 can move independently of proximal pivot driver 2230. In various circumstances, proximal pivot driver 2230 can be held in position by pivot latch 2350 when proximal pivot driver 2230 is not being moved in the proximal or distally by trigger member 2220.

[00275] As discussed above, the locking sleeve 2402 may comprise a cylindrical, or at least substantially cylindrical, body that includes a longitudinal opening 2403 defined therein, configured to receive the firing member 2220. The locking sleeve 2402 may comprise protrusions diametrically opposed inwardly facing locking elements 2404 and an outwardly facing locking element 2406. The locking protrusions 2404 may be configured to be selectively engaged with the triggering member 2220. More particularly, when the locking sleeve 2402 is in its engaged position , the locking protrusions 2404 are positioned in a drive slot 2224 defined in the firing member 2220 so that a distal compressive force and/or a proximal pulling force can be transmitted from the firing member 2220 to the locking sleeve 2402. When locking sleeve 2402 is in its engaged position, the second locking element ment 2406 is received within a drive slot 2232 defined in the pivot driver 2230 such that the distal compressive force and/or the proximal pulling force applied to the locking sleeve 2402 can be transmitted to the proximal hinge driver 2230 In effect, trigger member 2220, locking sleeve 2402 and proximal pivot driver 2230 will move together when locking sleeve 2402 is still in its engaged position. On the other hand, when locking sleeve 2402 is in its disengaged position, locking protrusions 2404 may not be positioned within the driving notch 2224 of triggering member 2220 and, as a result, a distal compressive force and/or a proximal pulling force may not be transmitted from the trigger member 2220 to the locking sleeve 2402. Correspondingly, the distal pulling force and/or the proximal pulling force cannot be transmitted to the proximal pivot driver 2230. circumstances, trigger member 2220 can be slid proximally and/or distally relative to locking sleeve 2402 and proximal pivot driver 2230.

[00276] As also discussed above, the elongated driveshaft assembly 2200 further includes a keying drum 2500 that is rotatably received in the closure tube 2260. The keying drum 2500 comprises a hollow driveshaft segment 2502 that it has a drive shaft boss 2504 formed therein, intended to receive an actuation pin 2410 projecting outwards therein. In various circumstances, actuation pin 2410 extends through a slot into a longitudinal slot provided in locking sleeve 2402 to facilitate axial movement of locking sleeve 2402 when it is engaged with pivot driver 2230. rotatable torsion spring 2420 is configured to engage projection 2504 on keying barrel 2500 and a portion of nozzle housing 203 to apply a shifting force to keying barrel 2500. Keying barrel 2500 may further comprise at least partially circumferential apertures 2506 defined therein, which may be configured to receive circumferential crimps extending from the nozzle halves 202, 203 and allow relative rotation, but not translation, between the keying barrel 2500 and the proximal nozzle 201. As described above, rotation of the keying drum 2500 will ultimately result in rotation of an actuation pin 2410 and the t sleeve. locking 2402 between its engaged and disengaged positions. Thus, in essence, the mouthpiece 201 can be employed to operationally engage and disengage the linkage drive system with the firing drive system in the various ways described above and also in U.S. Patent Application Serial No. 13/803,086, now US Patent Application Publication No. 2014/0263541.

[00277] With reference to Figure 27, the closing tube assembly 2260 includes a double articulation closing sleeve assembly 2271. According to various forms, the double articulating closing sleeve assembly 2271 includes a closing sleeve of end actuator 2272 that has upper and lower wings that project distally. An upper double pivot link 2277 includes upwardly projecting distal and proximal pivot pins that engage, respectively, an upper distal pin hole in the proximally projecting upper connecting terminal and an upper proximal pin hole at a distally projecting upper connecting lug on closure tube 2260. A lower double pivot link 2278 includes upwardly projecting distal and proximal pivot pins that engage, respectively, a lower distal pin hole in the lug protruding lower connection terminal and a lower proximal pin hole in the distally projecting lower connection terminal.

[00278] The elongated drive shaft assembly 2200 also includes a surgical end actuator 2300, which is similar to the surgical end actuator 300 described above. As seen in Figure 27, the surgical end actuator 2300 includes an elongated groove 2302 that is configured to operatively support a surgical staple cartridge 2304 therein. The elongated groove 2302 has a proximal end portion 2320 that includes two walls. vertical sides 2322. The surgical end actuator 2300 further includes an anvil 2310 having an anvil body 2312 with a lower clip forming surface 2313 formed thereon. Proximal end 2314 of anvil body 2312 is bifurcated by a firing member slot 2315 to form two anvil attachment arms 2316. Each anvil attachment arm 2316 includes a laterally projecting anvil swivel pin 2317. A pivot pin 2324 is provided on each side wall 2322 of the elongated groove 2302 to receive therein a corresponding anvil pivot pin 2317. Such an arrangement serves to movably affix the anvil 2310 to the elongated channel 2302 for selective pivotal displacement between open and closed or crimped positions. Anvil 2310 is moved to a closed position by distally advancing closure tube 2260 and, more particularly, end actuator closure sleeve 2272 above tapered attachment arms 2316, which causes anvil 2310 to move distally while pivoting to the closed position. A horseshoe opening 2273 is provided in the end actuator closing sleeve 2272 that is configured to engage a vertical tab 2318 on the anvil 2310 of the end actuator 2300. To open the anvil 2310, the closing tube 2260, and more in particular, the 2272 end actuator closing sleeve is moved in the proximal direction. In this way, a central flange portion defined by the horseshoe-shaped aperture 2273 cooperates with flange 2318 on anvil 2310 to pivot anvil 2310 back to an open position.

[00279] With reference to Figures 26, 28 and 29, as mentioned above, the elongated drive shaft assembly 2200 includes a pivot lock 2350 that is substantially similar to the pivot locks 350 and 810 that were previously described. Components of the 2350 pivot lock that differ from the components of the 350 pivot lock that are necessary to understand the operation of the 350 pivot lock will be discussed in more detail below. As discussed above, pivot lock 2350 can be configured and operated to selectively lock end actuator 2300 in position. This arrangement allows the surgical end actuator 2300 to be pivoted, or pivoted, relative to the driveshaft closure tube 2260 when the pivot lock 2350 is in its unlocked state. When proximal pivot driver 2230 is operatively engaged with trigger member 2220 via clutch system 2400, in addition to the above, trigger member 2220 can move proximal pivot driver 2230 proximally and/or distally. Movement of the 2230 Proximal Knuckle Driver, either proximal or distal, can unlock the 2350 Knuckle Lock, as described above. This embodiment includes a proximal locking adapter element 2360 that is movably supported between the proximal center column 2210 and the distal center column 2212. The proximal locking adapter 2360 includes a locking cavity 2362 for receiving first locking elements therein. 2364 and second locking elements 2366 that are seated on the frame rail 2368 that extends between the proximal frame 2210 and the distal frame 2212. The pivot latch 2350 operates in the various ways as described above and, for the sake of brevity, will not be discussed here in more detail.

[00280] As seen in Figures 26, 28 and 29, a first distal pivot driver 2370 is attached to the proximal locking adapter 2360. The first distal pivot driver 2370 is operatively attached to a second distal pivot driver 2380 that operatively interfaces with the elongated groove 2302 of the surgical end actuator 2300. The second distal pivot driver 2380 comprises a wire 2382 that is rotatably seated on a proximal pulley 2383 and a distal pulley 2392. The distal pulley 2392 is non-rotationally supported or integrally formed into an end actuator mounting assembly 2390 and includes a detent or cavity 2396. In the illustrated example, the end actuator mounting assembly 2390 is non-movably attached to the proximal end 2320 of the elongated groove 2302 by a 2393 tension pin that extends through a hole in the 2390 end actuator mounting assembly and the 2394 holes on the proximal end 2320 of the elongated groove 2302. The proximal pulley 2383 is pivotally supported on the distal center column 2212. The distal end of the distal center column 2212 has a pivot pin 2213 formed thereon that is configured to be rotatably received within a pivot hole 2395 formed in end actuator mounting member 2390. Such an arrangement facilitates pivotal displacement (i.e., pivoting) of elongated raceway 2302 with respect to center column 2212 about a pivot axis B-B defined by pivot hole 2395 and pin 2213.

[00281] In one form, 2382 wire can be manufactured from stainless steel, tungsten, aluminum, titanium, etc., for example. The yarn can be of braided construction or multiple strands with varying amounts of strands to achieve desired levels of tensile strength and flexibility. In various arrangements, for example, wire 2382 can have a diameter in the range of 0.08 cm to 0.20 cm (0.03 inch to 0.08 inch) and more preferably in the range of 0.13 to 0.08 inch. 0.20 cm (0.05 to 0.08 inch). A preferred wire can, for example, be made from 300 series stainless steel - medium hard to full hard. In various arrangements, the wire may also be coated with, for example, Teflon®, copper, etc., for improved lubricity and/or to reduce stretching, for example. In the illustrated example, wire 2382 has a pin 2384 attached to one end and a pin 2385 attached to the other end, for example by crimping. The first distal pivot driver 2370 includes a pair of spaced lugs 2372, 2374 with sufficient distance between them to accommodate the pins 2384, 2385 therebetween. For example, proximal loop 2372 includes a proximal slot 2373 for receiving a portion of wire 2382 adjacent to post 2384, and distal loop 2374 includes a distal slot 2375 for receiving a corresponding portion of wire 2382 adjacent to post 2385. Slots 2373 and 2375 are sized relative to pins 2384, 2385, respectively, to prevent pins 2384, 2385 from being pulled through. Proximal slit 2375 is oriented at an angle compared to distal slit 2375 so as to securely hold the corresponding portion of wire 2382 therein. See Figure 30. A ball or attachment shoulder 2398 is attached to the endless element 2382 and is received in the detent or cavity 2396 formed in the distal pulley 2392. See Figure 31. Thus, when the first distal pivot driver 2370 is axially retracted in the proximal "DP" direction, in the ways described above, the endless member 2382 will pivot the end actuator 2300 in the direction represented by the arrow 2376 in Figure 31. On the other hand, when the first distal pivot driver 2370 is axially advanced in the In the "DD" distal direction, the surgical end actuator 2300 is pivoted in the direction represented by the arrow 2399 in Figure 31. In addition, the proximal and distal loops 2372, 2374 are spaced far enough apart to accommodate the pins 2384, 2385 therebetween. A tensioning strut 2378 is used as shown in Figures 29 through 32 to apply sufficient tension to wire 2382 so that when the wire is actuated, it will apply a pivoting motion to end actuator 2300. In the alternate arrangement shown in Figure 35 , the proximal loop 2374' is initially not attached to the first hinge driver 2370. The proximal loop 2374' is positioned on the first distal hinge driver 2370 to capture pins 2384 and 2385 between the distal loop 2372 and the proximal loop 2374 '. Proximal loop 2374' is moved toward distal loop 2372 until a sufficient amount of tension is generated in wire 2382, then proximal loop 2374' is attached to the first distal pivot driver 2370. For example, the proximal loop 2374' may be attached to the first distal pivot driver 2370 by laser welding or other suitable form of fastener or fastener arrangement.

[00282] With reference to Figures 36 to 39, the surgical instrument includes, for example, a central trigger bar support element 2286 that is configured to extend through an articulated joint to provide support for a set of flexible trigger bars 2280. In one form, the trigger bar central support member 2286 comprises a flexible plate member or band and includes a downwardly projecting attachment tab 2287 that is attached to the surgical end actuator, and an end portion upwardly extending proximal 2288 that attaches to the elongated driveshaft assembly. In at least one arrangement, distal attachment tab 2287 is pinned to end actuator mounting assembly 2390 by tension pin 2393 and proximal end portion 2288 is pinned to distal center post 2212 by pins (not shown) . The firing bar center support member 2286 is located along the centerline or axis of the drive shaft of the device and serves to provide support for the firing bar during articulation. This arrangement is different from those which employ "burst" plates or side support plates which are situated on the lateral sides of the firing bar and which are thereby offset from the axis of the drive shaft, increasing stress and breakout forces. compression to which they are subjected during articulation. In the illustrated example, the longitudinally movable flexible firing rod assembly 2280 comprises a laminated rod structure that includes at least two layers of rods, with at least one layer of rods configured to pass adjacent a lateral side of the element. trigger bar center support element, and at least one other bar support member is configured to pass adjacent to a further lateral side of the trigger bar center support member. In the illustrated example, two layers of laminates 2282 and 2284 are configured to pass adjacent to each side of the flexible stress-bearing member. See, for example, Figures 35 and 36. In various embodiments, laminate layers 2282 and 2284 may comprise, for example, stainless steel bands that are interconnected, for example, by soldering or pinning at their proximal ends, whereas their respective distal ends are not connected to allow the laminates or bands to spread relative to each other when the end actuator is pivoted. Each pair of layers of laminates or webs 2282, 2284 is represented as a set of sidefire web 2285 of set of firebars 2280. Thus, as shown in Figure 36, a set of sidefire web 2285 is supported on each lateral side of center pivot bar 2286 for axial displacement relative thereto by a series of lateral load-bearing members 2290. Each lateral load-bearing member 2290 may be fabricated from, for example, stainless steel, aluminum , titanium, liquid crystal polymeric material, plastic material, nylon, acrylonitrile-butadiene-styrene (ABS), polyethylene, etc., and be formed with opposing arcuate ends 2292. Each lateral load-bearing member 2290 also has a axial passage 2294 extending therethrough to receive mounting of the side firing band assemblies 2285 and center pivot bar 2286. As seen particularly in the Figure 38, each axial passageway is defined by two opposing arcuate surfaces 2295 that facilitate movement of the lateral load-bearing members 290 in the longitudinally movable flexible firing bar assembly 2280. The lateral load-bearing members 2290 are disposed in series at the side-firing band 2285 and central pivot bar 2286 assemblies such that opposing arcuate ends 2292 adjoin corresponding arcuate ends 2292 of adjacent lateral load-bearing members 2290. See, for example, Figures 36 and 37.

[00283] With reference again to Figure 37, it can be seen that the center pivot bar 2286 of the proximal end portion 2288 extends downwards for attachment to the distal center column 2212. The distal end 2287 of the firing bar assembly 2280 is attached to a firing member 2900 of the type and construction described above, for example. As seen in the figure, the trigger member 2900 includes a vertically extending trigger member body 2902 having a tissue cutting surface or blade 2904 thereon. interior of surgical staple cartridge 2304 to actuate contact with trigger member 2900. As trigger member 2900 is driven distally through cartridge body 2304, wedge surfaces 2912 of wedge slider 2910 make contact with the clip drivers for upwardly actuating the drivers and the surgical clips supported therein on cartridge body 2304. The firing bar assembly 2280 is operated in the various ways described above. When the firing bar assembly 2280 is advanced distally around the pivot joint, the lateral load bearing members 2290 can help resist deformation loads on the firing bar assembly 2280. The lateral load bearing members 2290 they can also reduce the amount of force required to pivot the end actuator and also accommodate larger pivot angles compared to other articulated joint arrangements. The fixed central support member of the firing bar 2286 serves to support the tension loads that are generated during articulation and firing.

[00284] As described above, the firing bar assembly comprises a laminated bar structure that includes at least two layers of bars. When the firing bar assembly is advanced distally (during firing), the firing bar assembly is essentially bifurcated by the central support member of the firing bar, such that portions of the firing bar assembly (i.e., layers of laminates) pass on both sides of the central support element of the firing bar.

[00285] Figures 40 to 43 illustrate a portion of another set of firing bars 2280' which is attached to a firing member 2900. As can be seen from these figures, the set of firing bars 2280 comprises a laminated structure which includes two outer side bars or layers 2282' each having a thickness designated "a" and four core layers 2284' each having a thickness designated "b". In at least one arrangement, for example, "a" can range from approximately 0.013 to 0.020 cm (0.005 to 0.008 inch) and more preferably equal to 0.020 cm (0.008 inch), and "b" can range from approximately 0.020 to 0.030 cm (0.008 to 0.012 inch) and more preferably equal to 0.025 cm (0.010 inch). However, other thicknesses can be used. In the illustrated example, "a" is less than "b". In other embodiments, "a" is greater than "b". In alternative arrangements, for example, laminates can be formed of three different thicknesses "a", "b", "c", where "a" = 0.015 cm (0.006 inch), "b" = 0.020 cm (0.008 inch ), and "c" = 0.025 cm (0.010 inch) (with the thickest laminate or strip in the center of the assembly). In various arrangements, there may be an odd number of laminates or strips, where "c" is the single laminate that is thickest in the center.

[00286] The composition of laminates is relevant due to the amount of effort that is applied to a set of bars based on their thickness and their distance from the bending centerline. Thicker laminates or strips that are closer to the centerline can experience the same stress levels as thinner ones that are farther from the centerline, because the former need to flex more due to being stacked together. The radius of curvature is more pronounced on the inside of the curve the farther from the centerline. Thicker laminates or strips tend to experience more internal stress than thinner laminates for the same bending radius. Thus, thinner-sided laminates or strips that have the smallest radius of curvature can have the same probability of plastic deformation as thicker ones that are closer to the centerline. Stated another way, when the end actuator pivots in one direction, the laminates or bands lying in the opposite direction to the pivot direction have the largest bending radius, and the laminates or bands closest to the pivoting direction have the smallest bending radius. flexion. However, when the end actuator is pivoted in the opposite direction, the reverse is true. Laminates on the inner side of the laminate stack experience the same deflection, but their bending radius will always be within the range of the outer laminates. Thus, to maintain flexibility, it may be desired to place the thinnest laminates on the outside of the stack. However, to maximize hardness and creep resistance, thicker materials on the inner side provide an additional benefit. Alternatively, if the end actuator only needs to pivot in a single direction, the laminates or bands located in the opposite direction to the pivot direction will have the largest bending radius, and the laminates or bands located in the pivoting direction will have the smallest bending radius. . However, as the end actuator does not pivot in an opposite direction, the reverse is no longer true and therefore the laminate stack need not be symmetrical. Thus, in such an arrangement, it would be desirable for the thinnest laminate or web to be the one with the smallest bending radius (the laminate or web on the hinge direction side).

[00287] In still other embodiments, laminates or strips can be manufactured from different metals with different strengths and modules. For example, the outer laminates or bands could be the same thickness as the inner laminates or bands, with the inner laminates or bands being manufactured from 300 series stainless steel and the outer laminates or bands being made from titanium or nitinol.

[00288] As can be seen in Figures 42 and 43, the set of distal firing bars 2280' can be effectively employed with the series of lateral load-bearing members 2290 described above. It will be appreciated that the distal firing bar assembly 2280 may also be used in connection with a central pivot bar 2286 in the manner described above, so that some of its layers or side bars (or bands or laminates) extend axially along the sides. of the center pivot bar. In some embodiments, the layers extending on each side of the central pivot bar 2286 may have the same thickness, composition, shape and configuration. In other embodiments, the layer or layers that run along one side of the central pivot bar can be of a different thickness and/or composition and/or shape than the thickness and/or composition and/or shape of the layer or layers that run along it. on the opposite side of the central pivot bar, to achieve a desired range of displacement and flexibility while maintaining a desired amount of stiffness to prevent deformation during firing.

[00289] Figures 44 to 46 illustrate a portion of another elongated drive shaft assembly 3200 that includes a surgical end actuator 300 of the type and construction described above. Other forms of surgical end actuators may also be employed. The elongated drive shaft assembly 3200 also includes a longitudinally movable flexible firing rod assembly 3280 that is attached to a firing member 900. In alternative arrangements, the distal end of the firing rod assembly 3280 can be configured to perform various functions. actions within the surgical end actuator without the need to attach a trigger member thereto. Flexible firing bar assembly 3280 may comprise an array of laminated bars of the various types described herein. In one arrangement, at least two compression bands are employed to provide lateral support to the flexible firing bar assembly 3280 as it traverses the pivot joint. The illustrated embodiment employs a total of four compression bands to provide lateral support to the flexible trigger bar as it passes through the pivot joint. For example, the elongated drive shaft assembly 3200 further includes a central column 3210 that includes a distal end 3217 having two distal cavities, or notches 3219, and two proximal cavities, or notches 3219', formed therein. A distal cavity 3219 accommodates a first proximal end 3904 of a first compression band 3900 located on a lateral side 3281 of said set of flexible trigger bars 3280, and the other distal cavity 3219 accommodates a second proximal end 3905 of a second band of Compression band 3901 located on another lateral side 3283 of flexible trigger bar assembly 3280. First compression band 3900 includes a first distal end 3902 that mounts within a corresponding vertical lateral support wall 330 formed at proximal end 320 of the groove elongated end 302 of the surgical end actuator 300. Similarly, the second compression band 3901 includes a second distal end 3907 that is also mounted within a corresponding vertical lateral support wall 330 formed at the proximal end 320 of the elongated channel 302 of the surgical end actuator 300. The first and second compression bands dist The ends 3900, 3901 may be fabricated from spring steel or the like, and the proximal ends 3904, 3905 may be U-bent to form a flexion portion configured to be movably received within the distal notches 3219, as shown. Such an arrangement allows the first and second distal compression bands 3900, 3901 to flex in response to articulation of the surgical end actuator 300 while the proximal ends 3904, 3905 are retained within their corresponding distal notches 3219.

[00290] As can be seen in Figures 44 to 46, the elongated drive shaft assembly 3200 also includes a third compression band 3910 and a fourth compression band 3911. As well as the first and second compression bands 3900 , 3901, the third and fourth compression bands 3910, 3911 can be manufactured from spring steel. As seen in Figures 44 to 46, the third compression band 3910 can be located between the first compression band 3900 and the lateral side 3281 of the flexible firing bar assembly 3280, and the fourth compression band 3911 can be located between the second compression band 3901 and the other lateral side 3283 of the set of flexible trigger bands 3280. The third proximal end 3914 of the third compression band 3910 and the fourth proximal end 3915 of the fourth compression band 3911 can each be be bent U-shaped to form a bending portion which is movably received within a corresponding proximal cavity 3219' in center column 3210. The third distal end 3912 of the third compression band 3910 and the fourth distal end 3917 of the fourth compression band 3911 are mounted to a corresponding side support wall 330 on the surgical end actuator 300.

[00291] The elongated drive shaft assembly 3200 further comprises a set of movable support links 3920 to provide additional lateral support to the flexible firing rod assembly 3280 when the end actuator 300 is pivoted around the pivot axis. As seen in Figures 44-46, the movable support link assembly 3920 comprises a central support member 3922 that is movably coupled to the surgical end actuator 300 as well as the elongated drive shaft assembly 3200. In one embodiment, center support member 3922 is pivotally pinned to proximal end 320 of elongated groove 302. Center support member 3922 further includes a proximally projecting tab 3926 having a proximal elongated slot 3928 therein . Proximal slot 3928 is configured to slidably receive a center support pin 3211 formed in center column 3210. Such an arrangement permits pivotal and relative axial movement between center support member 3922 and center column 3210 of the driveshaft assembly elongated 3200 so as to accommodate a greater range of articulation while still being able to dynamically move to maintain adequate lateral support on the firing bar assembly 3280. As seen in Figures 44 through 46, the center support member 3922 further includes a centrally disposed slot 3930 for axially receiving the firing bar assembly 3280 therethrough.

[00292] As can be seen further in Figures 44 to 46, the set of movable support links 3920 further comprises an elongated movable pivot link 3940. The pivot link 3940 includes a central body portion 3942 having a tip portion A proximally projecting proximal end portion 3943 and a distally projecting distal tip portion 3944. The pivot link 3940 further includes a first downwardly projecting side support wall 3945 and a second downwardly projecting side support wall 3946 which define a bar slot 3947 therebetween. As seen in Figure 46, the trigger bar assembly 3280 is configured to extend between the first and second side support walls 3945, 3946 during actuation of the trigger bar assembly 3280 and the end actuator linkage. surgical 300. Additionally, in the illustrated arrangement, for example, the first compression band 3900 extends between the first side support wall 3945 and the third compression band 3910, and the second compression band 3901 extends between the second first side support wall 3946 and the fourth compression band 3911. The first side support wall 3945 includes a second inwardly facing arched surface 3948 and the second side support wall 3946 includes a second inwardly facing arched surface 3949. the second arcuate surfaces 3948, 3949 serve to provide lateral support to the firing rod assembly 3280 as it flexes during actuator pivoting end cap 300. The rounded edged surfaces may match the outside radius of the firing bar assembly 3280 and the compression bands 3900, 3901, 3910, 3911 depending on the direction and degree of articulation. As seen in Figures 44 and 45, the distal end 3217 of the center column 3210 includes a pair of opposite left and right drive shaft notches 3218 into which the proximally projecting rounded tip portion 3943 of the link pivot point 3940 extends depending on the direction in which the surgical end actuator is pivoted about the pivot axis. Similarly, opposing right and left support notches 3932 are provided on center support 3922 to accommodate the distally projecting distal tip portion 3944 of pivot link 3940 depending on the direction in which the end actuator is pivoted. Such notch arrangements serve to properly align pivot link 3940 in a proper orientation to accommodate the pivot direction while providing lateral support to pivot link 3940.

[00293] Figures 47 to 51 illustrate another elongated drive shaft assembly 4200 that is, in some respects, similar to the elongated drive shaft assembly 2200 described above, with the exception of several differences discussed in more detail below. The components of the elongated driveshaft assembly 2200 that were previously discussed in detail contain part numbers of components that are similar and, for the sake of brevity, will not be discussed further in more detail than may be necessary to understand the operation. of the elongated drive shaft assembly 4200 when, for example, employed with portions of the surgical instrument 10 as described above. As seen in Figure 47, in at least one example, the elongated driveshaft assembly 4200 includes a pivot lock 2350. As discussed in more detail earlier, the pivot lock assembly 2350 includes a proximal lock adapter 2360 that is coupled (e.g., pinned) to a first distal hinge driver 4370. As seen in Figures 47 and 50, the first distal hinge driver 4370 includes a first proximal rack segment 4371 and a first proximal rack segment 4370. distal rack 4373 formed at a distal end 4372 thereof. The elongated drive shaft assembly 4200 also includes a second distal pivot driver 4380 that includes a second proximal rack segment 4381 and a second distal rack segment 4383 that is formed at a distal end 4382 thereof.

[00294] The first distal pivot driver 4370 and the second distal pivot driver 4380 are configured to move axially relative to the distal center column assembly 4212 in the proximal direction "DP" and in the distal direction "DD". As seen in Figure 50, the first proximal rack segment 4371 and the second proximal rack segment 4381 are in engaged engagement with a proximal power transfer gear 4390 that is rotatably supported by the distal center column assembly 4212. Similarly, the first distal rack segment 4373 and the second distal rack segment 4383 are in engaged engagement with a distal energy transfer gear assembly 4392. In particular, in at least one arrangement, the distal energy transfer gear assembly power transfer gear 4392 includes a pinion gear 4393 that is in meshed engagement with the first distal rack segment 4373 and the second distal rack segment 4383. The distal power transfer gear assembly 4392 further includes a drive gear 4394 that is disposed in engaged engagement with a 4395 idler gear. 4395 is in turn supported in meshed engagement with a driven gear 4306 that is formed about the proximal end portion 4320 of the elongated groove 4302 of a surgical end actuator 4300. The surgical end actuator 4300 may otherwise , be similar to the surgical end actuator 2300 and include an anvil 4310 that can be opened and closed in the various ways described above. Referring to Figures 48, 49 and 51, the distal center column assembly 4212 may comprise an upper center column portion 4212A and a lower center column portion 4212B. Distal energy transfer gear assembly 4392, idler gear 4395, and driven gear portion 4306 of elongated raceway 4302 are each pivotally attached or supported on bottom portion 4212B of distal center column assembly 4212.

[00295] The elongated drive shaft assembly 4200 depicted in Figure 47 includes a firing bar assembly 3280 that is attached to a firing member (not shown). The trigger bar assembly 3280 may comprise an array of laminated bars of the types described herein. The operation of the firing member has been described in detail above and will not be repeated for the sake of brevity. As seen in Figure 47, a fire bar support member 4400 of the type disclosed in U.S. Patent Application Serial No. 14/575,117, entitled "SURGICAL INSTRUMENTS WITH ARTICULATABLE END EFFECTORS AND MOVABLE FIRING BEAM SUPPORT ARRANGEMENTS", whose The description is incorporated herein by reference in its entirety, is employed to provide support for the firing bar assembly 3280 during articulation of the surgical end actuator 4300. Figure 52 illustrates the use of a distal firing bar assembly 2280 in a set. of elongated drive shaft 4200. As seen in this figure, a plurality of lateral load bearing members 2290 are employed in the manner described above to provide support for the distal firing bar assembly 2280 when the surgical end actuator 4300 is pivoted .

[00296] Figures 53 to 58 illustrate another elongated drive shaft assembly 5200 that is, in some respects, similar to the elongated drive shaft assembly 2200 described above, with the exception of several differences discussed in more detail below. Components of the elongated driveshaft assembly 5200 that have been previously discussed in detail with respect to the elongated driveshaft assembly 2200 will be identified with similar reference numerals and, for the sake of brevity, will not be discussed further in detail beyond the which may be necessary to understand the operation of the elongated drive shaft assembly 5200 when, for example, employed with portions of the surgical instrument 10 as described above.

[00297] Similar to the elongated drive shaft assembly 2200, the illustrated elongated drive shaft assembly 5200 includes a clutch assembly 2400 that is configured to operatively engage a linkage system 5600 that is configured to apply pivot movements from advance and traction to the surgical end actuator 300 which is operatively coupled thereto. In this embodiment, clutch assembly 2400 includes a lock ring, or locking sleeve 2402, which is positioned around triggering member 2220, with locking sleeve 2402 rotatable between an engaged position in which the locking sleeve 2402 can be rotated. locking 2402 operatively engages linkage 5600 with triggering member 2220, and a disengaged position in which linkage 5600 is not operatively engaged with triggering member 2220. With specific reference to Figures 54 through 56, in the illustrated example, the Pivot assembly 5600 comprises a pivot disk or pivot member 5602 that is supported for rotational movement within mouthpiece 201. Pivot disk 5602 is rotatably driven by a drive link assembly 5610. Drive link 5610 includes a drive pin 5612 that attaches to pivot disk 5602. A pivot drive link 5614 is operationally connected to drive pin 5612 by a connector 5616 which facilitates certain movement of pivot drive link 5614 relative to drive pin 5612. See Figures 54 to 56. Pivot drive link 5614 includes a drive coupler 5618 which is configured to actuatively engage the outwardly facing locking element 2406 in the locking sleeve 2402. See Figure 53.

[00298] As discussed above, the locking sleeve 2402 may comprise a cylindrical, or at least substantially cylindrical, body that includes a longitudinal opening 2403 defined therein, configured to receive the firing member 2220. See Figure 53. The locking sleeve 2402 may comprise diametrically opposed inwardly facing locking protrusions 2404 and an outwardly facing locking element 2406. The locking protrusions 2404 may be configured to be selectively engaged with the firing member 2220. More particularly, when the locking sleeve 2402 is in their engaged position, locking protrusions 2404 are positioned in a drive notch 2224 defined in trigger member 2220 such that a distal compressive force and/or a proximal pulling force can be transmitted from trigger member 2220 to the locking sleeve 2402. When the locking sleeve 2402 is in its engaged position, the element outwardly facing locking sleeve 2406 is received within a drive notch 5619 in drive coupler 5618, as shown in Figure 53, such that the distal compressive force and/or the proximal pulling force applied to the locking sleeve 2402 can be transmitted to pivot drive link 5614. In effect, trigger member 2220, locking sleeve 2402 and pivot drive link 5614 will move together when locking sleeve 2402 is in its engaged position. On the other hand, when locking sleeve 2402 is in its disengaged position, locking protrusions 2404 may not be positioned within the driving notch 2224 of triggering member 2220 and, as a result, a distal compressive force and/or a proximal pulling force may not be transmitted from firing member 2220 to locking sleeve 2402. Correspondingly, a driving force "FA" may not be applied to pivot disk 5602. In these circumstances, firing member 2220 can be slid proximally and/or distally relative to Locking Sleeve 2402 and Proximal Pivot Driver 2230.

[00299] As also discussed above, the drive shaft assembly 5200 additionally includes a switching drum 2500 that is rotatably received in the closure tube 2260. See Figure 53. The switching drum 2500 comprises a drive shaft segment hollow 2502 having a drive shaft projection 2504 formed therein, intended to receive within it an actuation pin 2410 projecting outwards. In various circumstances, actuation pin 2410 extends into a longitudinal slot 2401 provided in locking sleeve 2402 to facilitate axial movement of locking sleeve 2402 when it is engaged with pivot drive link 5614. A spring rotary torque rod 2420 is configured to engage projection 2504 on keying drum 2500 and a portion of nozzle housing 201 to apply a shifting force to keying drum 2500. As discussed above, keying drum 2500 may further comprise openings along the at least partially circumferential pins defined therein, which may be configured to receive circumferential crimps extending from the nozzle halves and permit relative rotation, but not translation, between the keying drum 2500 and the nozzle housing 201. As described above, rotation of the keying drum 2500 will ultimately result in rotation of an actuation pin 2410 and of locking sleeve 2402 between its engaged and disengaged positions. Thus, in essence, the nozzle housing 201 can be employed to operationally engage and disengage the linkage system 5600 with the firing drive system in the various ways described above and also in US Patent Application Serial No. 13/803,086 , now US Patent Application Publication No. 2014/0263541.

[00300] Again referring to Figures 53 to 56, the pivot system 5600 of the illustrated example also includes a "first" (or right) pivot coupling 5620 and a "second" (or left) pivot coupling 5640. First pivot coupling 5620 includes a first pivot link 5622 that includes a first pivot pin 5624 that is movably received within a first pivot slot 5604 in pivot disk 5602. First pivot link 5622 is secured by pin movably to a first pivot connector 5626 that is configured to engage a pivot lock 2350. As discussed above, pivot lock 2350 can be configured and operated to selectively lock the surgical end actuator 300 in position. This arrangement allows the surgical end actuator 300 to be pivoted, or pivoted, relative to the driveshaft closure tube 2260 when pivot lock 2350 is in its unlocked state. When pivot drive link 5614 is operatively engaged with trigger member 2220 via clutch system 2400, in addition to the above, trigger member 2220 can rotate pivot disk 6502 to move first pivot coupling 5620 proximally and/or distally. Movement of the first pivot coupling 5626 of the first pivot coupling 5620, either proximally or distally, can unlock pivot lock 2350, as described above. The proximal locking adapter 2360 includes a locking cavity 2362 for receiving therein first locking elements 2364 and second locking elements 2366 that seat over the frame rail extending between the proximal frame 2210 and the distal frame. Operation of the pivot lock 2350 is done in the various ways described above and, for the sake of brevity, will not be discussed in more detail here. As seen in Figure 53, a first distal pivot driver 5370 is attached to the proximal locking adapter 2360. The first distal pivot driver 5370 is operatively attached to the proximal end 320 of the elongated groove 302 of the surgical tip actuator 300.

[00301] Also as indicated above, the articulation system 5600 of the illustrated example also includes a "second" (or left) articulation coupling 5640. As can be seen in Figures 54 to 56, the second articulation coupling 5640 includes a second pivot link 5642 including a second pivot pin 5644 that is movably received within a second pivot slot 5606 in pivot disk 5602. The second pivot link 5642 is pinned to a second pivot bar 5646 that attaches to the proximal end 320 of the elongated groove 302 of the surgical end actuator 300. Referring to Figure 54, the pivot system 5600 further includes a first pivot displacement member 5628 that is received within the first pivot slot 5604 , and a second pivot displacement member 5648 that is received within the second pivot slot 5606. Figure 54 illustrates the pivot system 5600 in a neutral or non-articulated configuration. As seen in this figure, the first pivot pin 5624 contacts the first pivot shifter 5628, and the second pivot pin 5644 contacts the second pivot shifter 5648. However, when at this neutral position, the first and second pivot displacement members 5628, 5648 may not be in a compressed state. Figure 55 illustrates the application of drive force "FA" to pivot disk 5602 in the proximal "DP" direction by pivot drive link 5614 in the manner described above. Application of drive force FA in the proximal DP direction results in rotation of pivot disk 5602 in the direction of rotation represented by arrow 5601. When pivot disk 5602 rotates in direction of rotation 5601, the end of the second pivot slot comes into contact. contacts the second pivot pin 5644 and applies a compressive force to the second pivot coupling 5640 and ultimately the second pivot bar 5646. On the other hand, the first pivot displacement element 5628 forces the first pivot pin 5624 in the direction of the arrow 5601 within the first pivot slot 5604 such that a pulling force is applied to the first pivot coupling 5620 in the proximal "DP" direction. This proximal pulling force is transmitted to the first distal pivot actuator 5370 through pivot lock 2350. These "squeeze and pull" motions, as applied to the surgical end actuator, cause the surgical end actuator 300 to pivot around of the pivot shaft in the direction represented by the arrow 5300. See Figure 53. When the pivot disk 5602 is in the position illustrated in Figure 55, the second pivot displacement element 5648 can be in a compressed state, and the first displacement element joint may not be compressed. In this way, when application of drive force FA to pivot drive link 5614 ceases, second pivot displacement element 5648 can force pivot disk 5602 back to the neutral position shown in Figure 54, for example.

[00302] On the other hand, when the actuation force "FA" is applied to the articulation actuation link 5614 in the distal direction "DD", as shown in Figure 56, the articulation disc 5602 rotates in the direction of rotation represented by the arrow 5603. As the pivot disk 5602 rotates in the direction of rotation 5603, the end of the first pivot slot 5604 contacts the first pivot pin 5624 and applies a compressive force to the first pivot coupling 5620 and finally to the first distal pivot driver 5370 via pivot latch 2350. Additionally, second pivot shifter 5648 forces second pivot pin 5644 in the direction of arrow 5603 into second pivot slot 5606 so that a force of traction is applied to the second 5640 Hinge Coupling in the proximal "DP" direction. This proximal pulling force is transmitted to the second pivot bar 5646. These "squeeze and pull" motions, as applied to the surgical end actuator 300, cause the surgical end actuator 300 to pivot about the pivot axis in the direction represented by arrow 5302. See Figure 53. When pivot disk 5602 is in a position illustrated in Figure 56, first pivot displacement element 5628 may be in a compressed state and second pivot displacement element 5648 may not be. tablet. In this way, when application of drive force FA to pivot drive link 5614 ceases, first pivot displacement element 5628 can force pivot disk 5602 back to the neutral position shown in Figure 54, for example.

[00303] Figure 57 illustrates the attachment of the distal end portion 814 of the drive shaft structure 812 to the surgical end actuator 300 which is operatively coupled to the elongated drive shaft assembly 5200. As described above, the distal end portion 814 has thereon a downwardly projecting pivot pin (not shown) that is adapted to be pivotally received within a pivot hole (not shown) that is formed in the proximal end portion 320 of the elongated groove 302 Such an arrangement facilitates pivotal displacement of the elongated raceway 302 relative to the drive shaft structure 812 about a pivotal axis B-B defined by the pivot hole. As seen in Figure 57, the first distal pivot driver 5370 is attached to a first coupler 850 by a first ball joint 852. The first coupler 850 is also pivotally pinned to the proximal end portion 320 of the elongated groove. 302 by a first pin 854, as seen in Figure 57. Similarly, the second pivot bar 5646 is attached to a second coupler 870 by a second ball joint 872. The second coupler 870 is also attached by a pin. hinged to the proximal end portion 320 of the elongated channel 302 by a second pin 874, as seen in Figure 57.

[00304] With reference to Figures 53 and 58, the elongated drive shaft assembly 5200 may also include a firing bar assembly 2280 that is attached to a firing member 900 of the type described above. The trigger bar assembly 2280 is attached to the trigger member 2220 and can be axially advanced and retracted in the various ways described above. The elongated drive shaft assembly 5200 may further comprise a multiple support link assembly 920 to provide lateral support to the distal trigger bar 2280 when the surgical end actuator 300 is pivoted about the pivot axis B-B. As seen in Figure 58, the multiple support link assembly 920 comprises a central support member 922 that is pivotally pinned to the proximal end 320 of the elongated channel 302 in the manners described above. Center support member 922 further includes a centrally disposed slot 930 for axially receiving distal firing bar 2280 therethrough. The multiple support link assembly 920 further comprises a proximal support link 940 and a distal support link 950. Proximal support link 940 includes a body portion 942 having a rounded proximal end 943 and a rounded distal end 944. Proximal support link 940 further includes a pair of downwardly projecting lateral support walls 945 defining a proximal slot therebetween. Similarly, distal support link 950 includes a body portion 952 having a rounded proximal end 953 and a rounded distal end 954. Distal support link 950 further includes a pair of downwardly projecting lateral support walls 955 that define a distal slit therebetween. As seen in Figure 58, the distal trigger bar 2280 is configured to extend between the side support walls 945 of the proximal support link 940 and the side support walls 955 of the distal support link 950. Each support wall 945 and 955 includes an inward facing arcuate surface as described above. The support surfaces serve to provide lateral support to the distal trigger bar 2280 as it flexes during articulation of the surgical end actuator 300. In addition, the closure tube assembly 2260 includes a double pivot type closure sleeve assembly. described above, which is configured to operably interact with the anvil on the surgical end actuator 300. Operation of the closure tube assembly 2260 results in the opening and closing of the surgical actuator anvil in the various ways described above.

[00305] Figure 59 illustrates a portion of another elongated drive shaft assembly 5700 that may be substantially similar to the elongated drive shaft assembly 5200, with the exception of the differences discussed below. In particular, pivot disk 5702 of pivot system 5701 is rotated by a worm gear motor 5710 that is operatively supported in nozzle housing 201. In one embodiment, for example, a driven gear 5703 is integrally formed or otherwise non-movably attached to pivot disk 5702 so that it is in engaged engagement with worm gear transmission 5712 of motor 5710. In the illustrated example, a first rod or pivot member 5720 may be attached directly to a portion of a surgical tip actuator in any of several ways described herein. A first pivot pin 5722 is attached to the first pivot rod 5720 and is received within a first arcuate pivot slot 5704 formed in pivot disk 5702. A first pivot displacement element 5705 is received within the first pivot slot 5704 for displacement contact with first pivot pin 5722. Similarly, a second rod or pivot member 5730 may be attached directly or indirectly to a portion of a surgical end actuator in any of the various ways described herein. A second pivot pin 5732 is attached to second pivot rod 5730 and is received within a second arcuate pivot slot 5706 formed in pivot disk 5702. A second pivot displacement member 5707 is received within second pivot slot 5706 for displacement contact with second pivot pin 5732.

[00306] Figure 59 illustrates the 5701 articulation system in a neutral or non-articulated configuration. As seen in this figure, the first pivot pin 5722 contacts the first pivot shifter 5705, and the second pivot pin 5732 contacts the second pivot shifter 5707. However, when at this neutral position, the first and second pivot displacement members 5705, 5707 may not be in a compressed state. Actuation of motor 5710 to rotate pivot disk 5702 in the direction of rotation represented by arrow 5601 will apply a pulling motion to first pivot rod 5720 to cause first pivot rod 5720 to move in the proximal "DP" direction , as well as applying a squeezing motion to the second pivot rod 5730 to cause the second pivot rod 5730 to move in the distal "DD" direction. Conversely, actuation of motor 5710 to rotate pivot disk 5702 in the direction of rotation represented by arrow 5603 will apply a compressive motion to first pivot rod 5720 to cause first pivot rod 5720 to move in the direction distal "DD", as well as applying a pulling motion to the second pivot rod 5730 to cause the second pivot rod 5730 to move in the proximal "DP" direction. These "push and pull" motions, as applied to the surgical end actuator, cause the surgical end actuator to pivot about the pivot axis in the various ways described above.

[00307] Figures 60 to 65 illustrate another articulation system 5800 that can be used with various sets of elongated drive shaft and actuator arrangements described here. In that embodiment, however, the pivot system 5800 includes a set of two pivot disks 5810 comprising a driving pivot disk 5820 and a driven pivot disk 5830. Both pivot disks 5820, 5830 can, for example, be rotatably supported within the nozzle housing of the elongated driveshaft assembly such that both discs 5820, 5830 are independently rotated about a common axis. In various embodiments, drive motions may be applied to drive pivot disk 5820 by a pivot drive link 5614 and a trigger member arrangement 2220, as described above. In other embodiments, rotary drive motions may be applied to drive pivot disk 5820 by a worm gear motor 5710 in the manner described above.

[00308] Figure 61 illustrates one form of a driver disk 5820. As seen in this figure, the driver disk 5820 includes a first pair of first arcuate pivot slots 5822L, 5822R that each have a first arcuate length " PRAÇA". Furthermore, driver pivot disk 5820 further includes a driver slot 5824 that is centrally disposed between the first pivot slots 5822, as seen in Figure 61. Depending on the method employed to drive driver pivot disk 5820, the The 5614 pivot drive link or the 5710 worm gear motor can interface with the 5820 driver pivot disk in the various ways described above to apply rotary motions to the 5820 driver pivot disk. Figure 62 illustrates a shape of a driven pivot disk 5830. As seen in this figure, driven pivot disk 5830 includes a second pair of second arcuate pivot slots 5832L, 5832R that each have a second arcuate length "SC" that is less than the first arcuate length "PC". Additionally, driven pivot disk 5830 further includes a driver column 5834 that is configured to be movably received within driver slot 5824.

[00309] Referring now to Figures 60 and 63 to 65, the articulation system 5800 further comprises a first articulation rod 5840 that can be attached directly or indirectly to a portion of a surgical end actuator in any of several ways herein described. A first pivot pin 5842 is attached to the first pivot rod 5720 and is received within corresponding first and second arcuate pivot slots 5822L, 5832L. Similarly, a second rod or pivot member 5850 can be attached directly to a portion of the same surgical end actuator in any of several ways described herein. A second pivot pin 5852 is attached to the second pivot rod 5850 and is received within corresponding first and second arcuate pivot slots 5822R, 5832R. Figure 60 illustrates the 5800 pivot system in a neutral position in which the surgical end actuator can be freely moved. Figure 63 illustrates the position of pivot system 5800 after an initial application of pivotal motion to driver pivot disk 5820 in the direction represented by arrow 5860. As can be seen in this figure, after initial application of driver pivot disk 5820, the pivot slots 5822L, 5832L are offset from each other and pivot slots 5822R, 5832R are offset from each other, but still no motion is transferred to pivot rods 5840, 5850. Figure 64 illustrates the position of pivot system 5800 upon continued application of rotary motion to drive pivot disk 5820 in the direction of arrow 5860 sufficient to result in, for example, seventy-five degrees of pivoting of the surgical end actuator relative to the axis of the drive shaft. As seen in this figure, a compressive motion is applied to the first pivot rod 5840 to cause the first pivot rod 5840 to move axially in the distal "DD" direction, and a pulling motion is applied to the second pivot rod 5840. pivot 5850 to cause the second pivot rod 5850 to move axially in the proximal "DP" direction. Movement of the first and second linkage rods 5840, 5850 in opposite directions results in the surgical end actuator linkage being operatively attached thereto. Figure 65 illustrates the position of pivot system 5800 after application of rotational motion to actuator pivot disk 5820 in an opposite direction represented by arrow 5862 which is sufficient to result in, for example, seventy-five degrees of end actuator pivot. surgical axis relative to the axis of the drive shaft in an opposite articulation direction. As seen in this figure, a compressive motion is applied to the second pivot rod 5850 to cause the second pivot rod 5850 to move axially in the distal "DD" direction, and a pulling motion is applied to the first pivot rod 5850. pivot 5840 to cause the first pivot rod 5840 to move axially in the proximal "DP" direction. Such opposing movements of the first and second linkage rods 5840, 5850 result in the surgical end actuator linkage being operatively attached thereto. In one configuration, the first pivot rod 5840 can apply a pulling force to the surgical end actuator only after the pivot drive disk 5820 has been rotated a sufficient distance to achieve a range of seventy-five degrees of pivot.

[00310] Figures 66 to 70 illustrate a surgical end actuator 6300 comprising a first and a second claw that are simultaneously movable between the open and closed positions relative to the geometric axis SA-SA of the drive shaft. The first and second claws can comprise a variety of surgical claw arrangements without departing from the character and scope of the present invention. Gaining access to target tissue with the grips of a surgical tip actuator can sometimes be challenging. The maneuverability of a surgical end actuator, particularly a surgical end actuator that is configured to cut and staple tissue, can be improved if the distance between the point at which the jaws are supported relative to each other and the locations of staples is more proximal is minimized. For example, surgical end actuators that employ only a movable jaw (i.e., one of the jaws is fixed with respect to the axis of the drive shaft) may require that a movable jaw have a relatively large range of displacement to accommodate tissue. - target. This greater range of displacement can complicate the process of using the tip actuator to advantageously position the target tissue. The 6300 surgical end actuator employs first and second jaws that move relative to each other and the axis of the drive shaft about a common pivot axis. Such an arrangement allows the distance between the pivot shaft and the most proximal clip locations to be shortened compared to the same distance on certain surgical end actuators employing only a movable jaw, for example.

[00311] In the illustrated example, a first claw 6310 includes an elongated groove 6312 that is configured to support a surgical staple cartridge 6320 inside it. As can be seen in Figure 70, the surgical staple cartridge 6320 is configured to operationally support within it are a plurality of clip drivers 6322 that operatively support surgical clips 6324 therein. Staple drivers 6322 are movably supported within corresponding driver slots 6321 formed in surgical staple cartridge 6320. Staple drivers 6322 are retained within their respective driver slots 6321 by a cartridge tray 6330 that attaches or is otherwise attached to the surgical staple cartridge 6320. The staple drivers 6322 are arranged in rows on either side of an elongated slot 6326 in the surgical staple cartridge 6320 to accommodate the axial passage of a trigger member 6340 through the same. A wedge slider 6350 is movably supported within the surgical staple cartridge 6320 and is configured to be actuatively engaged by trigger member 6340 when trigger member 6340 is actuated from a home position adjacent the proximal end of the trigger cartridge. surgical staples 6320 to a final position within a distal portion of surgical staple cartridge 6320. As discussed above, when wedge slider 6350 is driven in a distal direction through surgical staple cartridge 6320, wedge slider 6350 contacts actuated with clip drivers 6322 to actuate them toward the deck surface of cartridge 6323. Trigger member 6340 includes a tissue cutting surface 6346 that serves to cut tissue trapped between the jaws when the trigger member trigger 6340 is triggered distally. A distal firing bar (not shown) of the various types described herein is operatively attached to firing member 6340, as well as to a firing drive shaft intermediate portion 2222 or other firing system arrangement. The operation of the intermediate portion of firing drive shaft 2222 to drive and retract the distal firing bar has been discussed in detail previously and will not be repeated for the sake of brevity. Other arrangements of firing bars and firing systems (both motor-actuated and manually operated) may also be employed to actuate the firing member without departing from the character and scope of the present invention.

[00312] The illustrated 6300 surgical end actuator is also configured for articulation around a pivot axis B-B that is substantially transverse to the axis SA-SA of the drive shaft. As seen in Figures 66 through 70, the 6300 surgical end actuator includes a 6390 end actuator mounting assembly that is adapted to be pivotally mounted, for example, to a distal drive shaft frame (not shown ) that includes a pivot pin that is configured to be pivotally received within the 6392 mounting hole on the 6390 End Actuator Mounting Assembly. and second linkage rods of the type described above. As seen in Figure 70, end actuator mounting assembly 6390 further includes a pair of opposite laterally extending pivot pins 6394. Pivoting pins 6394 extend laterally from opposite side sides 6391 of the mounting assembly. of the end actuator 6390 that also define a cavity area 6395 that is configured to receive the firing member 6340 therein. Swivel pins 6394 serve to define a PA-PA pivot axis around which the first and second jaws 6310, 6360 can pivot. The proximal end 6314 of the first jaw 6310 or elongated groove 6312 includes a pair of opposing U-shaped or open-ended slots 6316 which are adapted to receive therein a corresponding anvil swivel pin 6394. Such an arrangement serves to movably or pivotally seat the first jaw 6310 on the end actuator mounting assembly 6390.

[00313] The illustrated surgical end actuator 6300 further comprises a second jaw 6360 that may comprise an anvil 6362. The illustrated anvil 6362 includes an anvil body 6364 that includes an elongated slot 6366 and two clip-forming surfaces 6368 formed on each side of it. Anvil 6362 further includes a proximal end portion 6370 having a pair of opposing U-shaped or open-ended slots 6372 which are also adapted to receive therein a corresponding anvil swivel pin 6394. Such an arrangement serves to movably or pivotally seat the second jaw 6360 on the end actuator mounting assembly 6390 so that the first and second jaws can move with respect to each other as well as with respect to the axis. SA-SA of drive shaft. The first and second claws 6310 and 6360 are movably actuatable by a locking system of the various types disclosed herein. For example, a first closure drive system of the type described herein could be employed to actuate a closure tube in the manner described above. The shutoff tube may also be attached to a 6272 end actuator shutoff sleeve which can be pivotally attached to the shutoff tube by a double pivot shutoff sleeve assembly in the manner described above. As described above, for example, the axial movement of the closure tube can be controlled through actuation of a closure trigger 32. As seen in Figures 67 through 69, the closure sleeve of end actuator 6272 extends above of the end actuator mounting assembly 6390 and is configured to engage the proximal end 6370 of the second jaw 6360 as well as the proximal end 6314 of the first jaw 6310. At least one cam surface 6336 may be formed over the proximal end 6314 of the first jaw 6310 such that when the distal end 6274 of the end actuator closing sleeve 6272 contacts the cam surface(s) 6336, the first jaw 6310 is actuated eccentrically toward the second jaw and to the geometry axis SA-SA of the drive shaft. Similarly, one or more cam surfaces 6376 may be formed on the proximal end portion 6370 of the second jaw 6360 so that, when contacted by the distal end 6274 of the end actuator closing sleeve 6272, the second jaw 6360 is moved towards the first gripper 6310 and the SA-SA geometry axis of the drive shaft. Cam surfaces 6336, 6376 can be configured and positioned relative to each other such that the first and second jaws close at different "close rates" or closing times relative to each other. Such an arrangement is shown in Figure 68. As seen in Figure 68, the distance along an arcuate path between a point P1 on the first jaw 6310 and a corresponding point P2 on the second jaw 6360 when the first and second jaws are in their respective fully open positions is represented by DT. The first and second points P1 and P2 are said to be "corresponding" to each other. For example, the first point P1 and the second point P2 can each lie on a common line or axis that extends between them and is perpendicular to the axis SA-SA of the drive shaft. The distance along an arcuate path between another point PA on the first gripper 6310 and the geometry axis SA-SA of the drive shaft is represented by D1 and the distance along another arcuate path between another corresponding point PB on the second gripper and the Geometry axis SA-SA of the drive shaft is represented by D2. It is also said that point PA and point PB correspond to each other. For example, point PA and point PB can lie on a common line or axis that extends between them and that is perpendicular to the geometric axis SA-SA of the drive shaft. In the illustrated arrangement, the distance D2 that the second jaw 6360 or anvil 6362 moves from the fully open position to the closed position that the clamp forming surface of the anvil 6362 lies along the SA-SA axis of the drive shaft is greater than the distance D1 that the first gripper 6310 or surgical staple cartridge 6320 moves from the fully open position to the closed position where the cartridge platform surface lies along the SA-SA axis of the drive shaft. For example, in at least one arrangement, the second jaw or anvil will open or move 2/3 of the distance DT (or other distance along another travel path between the jaws) and the first jaw or staple cartridge will open or move 1/3 of the DT distance (or another distance along yet another path of travel between the grips), so that, in essence, one grip reaches its fully closed position faster than the other grip reaches its position completely closed, although a closing movement or movements were initially applied to both claws at the same or similar times. For example, the cam surfaces on the first and second jaws can be arranged or configured to achieve different ratios/rates of jaw movement without departing from the character and scope of this embodiment of the present invention. An opening spring 6380 (Figure 70) can be positioned between the proximal end 6314 of the first jaw 6310 and the proximal end 6370 of the second jaw 6360 to flex the first and second jaws 6310, 6360 to the open position when the closing sleeve end actuator 6272 is homed or not actuated. See Figures 67 to 69.

[00314] To move the first and second jaws 6310, 6360 to a closed position (Figure 66), the clinician actuates the closing system to move the closing sleeve of the end actuator 6272 in the distal direction "DD" to simultaneously enter contacting the cam surface(s) 6336 on the proximal end 6314 of the first jaw 6310 and the cam surface(s) 6376 on the proximal end 6370 of the second jaw 6360 to flex the first and second jaws 6310, 6360 towards each other (and the drive shaft SA-SA axis) to the position shown in Figure 66. While the 6272 end actuator closing sleeve is held in this position, the first and second jaws 6310 and 6360 are held in that closed position. Thereafter, the triggering system can be actuated to axially advance trigger member 6340 distally through surgical tip actuator 6300. As seen in Figure 70, trigger member 6340 can have a base portion 6342 that is configured for slidingly engaging a slotted passage 6374 of the anvil 6362 and a top flap portion 6344 which is adapted to be slidably received within a slotted passage 6318 in the elongated channel 6312. See Figure 69 . firing member serves to positively retain the first and second jaws 6310, 6360 in a desired spacing arrangement during firing of the firing member (i.e., during firing of staples) and cutting the tissue that is clamped between the first and second jaws. the second jaw 6310, 6360. A first jaw cover 6315 is removablely attached to the elongated groove 6312 and a second jaw cover 6363 is removably attached to the anvil 63 62 for assembly purposes and also to prevent infiltration of tissue and/or body fluid into the first and second prongs, which may hinder or interfere with the operation of firing member 6340.

[00315] Figure 71 illustrates another surgical end actuator 6300' that is similar to the surgical end actuator 6300. As can be seen in this figure, the surgical end actuator 6300' comprises two claws that are simultaneously movable between open positions and closed with respect to the SA-SA axis of the drive shaft. In the illustrated example, a first gripper 6310' includes an elongated groove 6312' that is configured to support a surgical staple cartridge 6320' therein. Surgical staple cartridge 6320' is configured to operatively support therein a plurality of staple drivers 6322 which operatively support surgical staples 6324 therein. Staple drivers 6322 are movably supported within corresponding driver cavities 6321' formed in surgical staple cartridge 6320'. The staple drivers 6322 are retained within their respective driver cavities 6321' by a cartridge tray 6330' which attaches or is otherwise attached to the surgical staple cartridge 6320'. Staple drivers 6322 are arranged in rows on either side of an elongated slot 6326' in surgical staple cartridge 6320 to accommodate the axial passage of a trigger member 6340' therethrough. A wedge slider 6350' is movably supported within the surgical staple cartridge 6320' and is configured to be actuatively engaged by firing member 6340' when firing member 6340' is actuated from an initial position adjacent the end. proximal portion of the surgical staple cartridge 6320' to a final position within a distal portion of the surgical staple cartridge 6320'. As discussed above, when wedge slider 6350' is driven in a distal direction through surgical staple cartridge 6320', wedge slider 6350' contacts clamp drivers 6322 to drive them toward the deck surface of the 6323' cartridge. Trigger member 6340' includes a tissue cutting surface 6346' which serves to cut tissue trapped between the jaws when trigger member 6340 is distally actuated. A distal firing bar (not shown) of the various types described herein is operatively attached to firing member 6340', as well as to an intermediate portion of firing drive shaft 2222 or other firing system arrangement. The operation of the intermediate portion of firing drive shaft 2222 to drive and retract the distal firing bar has been discussed in detail previously and will not be repeated for the sake of brevity. Other arrangements of firing bars and firing systems (both motor-actuated and manually operated) may also be employed to actuate the firing member without departing from the character and scope of the present invention.

[00316] The 6300' surgical end actuator illustrated is also configured for selective articulation around a pivot axis B-B that is substantially transverse to the axis SA-SA of the drive shaft. End actuator 6300' includes an end actuator mounting assembly 6390' that is adapted to be pivotally mounted, for example, on a distal drive shaft frame that includes a pivot pin configured to be pivotally received. swivel inside a mounting hole 6392' in the end actuator mounting assembly 6390'. The 6300' Surgical End Actuator is pivotable by a linkage latch and first and second linkage rod arrangements of the type described above. As seen in Figure 71, end actuator mounting assembly 6390' further includes a pair of opposing laterally extending pivot pins 6394'. Pivot pins 6394' extend laterally from opposite side sides 6391' of end actuator mounting assembly 6390' which also define a cavity area 6395' that is configured to receive firing member 6340' therein . The pivot pins 6394' serve to define a PA-PA pivot axis around which the first and second jaws 6310', 6360' can pivot. The proximal end 6314' of the first jaw 6310' or elongated groove 6312' includes a pair of opposing U-shaped or open ended slots 6316' which are adapted to receive therein a corresponding anvil swivel pin 6394'. Such an arrangement serves to movably or pivotally seat the first jaw 6310' on the end actuator mounting assembly 6390'.

[00317] The illustrated surgical end actuator 6300' further comprises a second gripper 6360' which may comprise an anvil 6362'. Illustrated anvil 6362' includes an anvil body 6364' that includes an elongated slot 6366' and two staple forming surfaces formed on each side thereof. The anvil 6362' further includes a proximal end portion 6370' that has a pair of opposing U-shaped or open-ended slots 6372' that are also adapted to receive therein a corresponding anvil swivel pin 6394'. Such an arrangement serves to movably or pivotally seat the second jaw 6360' on the end actuator mounting assembly 6390'. The first and second claws 6310' and 6360' are movably actuated by a locking system of the various types disclosed herein. For example, a first closure drive system 30 can be employed to actuate a closure tube 260 in the manner described herein. Shutoff tube 260 may also be attached to an end actuator shutoff sleeve 6272 which can be pivotally attached to shutoff tube 260 by a double pivot shutoff sleeve assembly 271 in the manner described above. As described above, for example, the axial movement of the closure tube 260 can be controlled by actuation of a closure trigger 32. The 6272 end actuator closure sleeve extends above the 6390 end actuator mounting assembly. ' and is configured to engage the proximal end 6370' of the second jaw 6360', as well as the proximal end 6314' of the first jaw 6310'. At least one cam surface 6336' may be formed over the proximal end 6314' of the first jaw 6310' such that when the distal end 6274 of the end actuator closing sleeve 6272 comes into contact with the cam surfaces 6336' , the first jaw 6310' is actuated eccentrically towards the second jaw 6360' and the SA-SA axis of the drive shaft. Similarly, one or more cam surfaces 6376' may be formed on the proximal end portion 6370' of the second jaw 6360' such that, when contacted by the distal end 6274 of the end actuator closing sleeve 6272, the second claw 6360' is moved toward the first jaw 6310' and the driveshaft geometry axis SA-SA. A spring (not shown) can be positioned between the proximal end 6314' of the first jaw 6310' and the proximal end 6370' of the second jaw 6360' to flex the first and second jaws 6310', 6360' to the open position when the 6272 End Actuator Closing Sleeve is homed or not actuated.

[00318] To move the first and second jaws 6310', 6360' to a closed position, the clinician actuates the closing system to move the closing sleeve of the end actuator 6272 in the distal direction "DD" to simultaneously contact with cam surface(s) 6336' on proximal end 6314' of first jaw 6310' and cam surface(s) 6376' on proximal end 6370' of second jaw 6360' to flex the first and the second jaws 6310', 6360' towards each other (and towards the SA-SA axis of the drive shaft). While the end actuator closing sleeve 6272 is held in that position, the first and second jaws 6310' and 6360' are held in that closed position. Thereafter, the triggering system can be actuated to axially advance trigger member 6340' distally through surgical end actuator 6300'. Trigger member 6340' may have a top flange portion 6344' that is configured to slideably engage a slotted passage 6374' of anvil 6362' and a base portion 6342' that is adapted to be slidably received within of a slotted passage in the elongated channel 6312'. As such, such a firing member arrangement serves to positively retain the first and second jaws 6310', 6360' in a desired spacing arrangement during firing of the firing member (i.e., during firing of the staples) and cutting of the fabric that is clamped between the first and second grips 6310', 6360'. A first jaw cover 6315' is releasably attached to the elongated trough 6312' and a second jaw cover 6363' is releasably attached to the anvil 6362' for assembly purposes and also to prevent tissue and/or fluid infiltration material on the first and second prongs which may hinder or interfere with the operation of firing member 6340'.

[00319] The surgical end actuator arrangements described herein that employ claws that move both relative to each other and relative to the geometric axis of the drive shaft can offer several advantages compared to other surgical end actuator arrangements in which one of the claws is fixed and does not move, for example with respect to the geometric axis of the drive shaft. In such configurations, it is often desirable for a movable gripper to have a relatively large range of motion relative to the fixed gripper to allow target tissue to be manipulated, positioned, and then clamped therebetween. In modalities where both grippers are movable, neither requires a large range of motion to accommodate manipulating, positioning, and grasping the target tissue between the grippers. This reduced movement of the anvil can, for example, provide for improved tissue positioning. Such arrangements may also allow the distance between the pivot shaft and the first clamp positions to be minimized. Furthermore, the trigger member can always remain engaged with the movable jaws (anvil and elongated groove) even during opening and closing actions.

[00320] Figures 72 to 79 illustrate another surgical end actuator 6400 that is configured to be operatively attached to an elongated driveshaft assembly of the types described herein that define an SA-SA axis of the driveshaft. The 6400 Surgical End Actuator comprises two jaws that are simultaneously movable between open and closed positions with respect to the SA-SA axis of the drive shaft. The first and second grippers may comprise a variety of different gripper arrangements for use in surgical procedures. In the illustrated example, a first gripper 6410 includes an elongated groove 6412 that is configured to support a surgical staple cartridge 6420 therein. As with the various surgical staple cartridges discussed above, the surgical staple cartridge 6420 is configured to support operatively within it a plurality of clip drivers (not shown) which operatively support surgical clips (not shown) therein. The staple drivers are movably supported within corresponding driver cavities formed in the surgical staple cartridge 6420. The staple drivers are arranged in rows on each side of an elongated slot (not shown) in the surgical staple cartridge 6420 to accommodate axially passing a trigger member 6440 therethrough. A wedge slider (not shown) is movably supported within surgical staple cartridge 6420 and is configured to be actuatively engaged by firing member 6440 when firing member 6440 is actuated from an initial position adjacent the proximal end. of the surgical staple cartridge 6420 to a final position within a distal portion of the surgical staple cartridge 6420. As discussed above, when the wedge slider is driven in the distal direction through the surgical staple cartridge 6420, the wedge slider enters into forcefully contact the staple drivers to drive them toward the surface of the cartridge platform (not shown). Trigger member 6440 includes a tissue cutting surface 6446 that serves to cut tissue trapped between the jaws when trigger member 6440 is distally actuated. A distal firing bar (not shown) of the various types described herein is operatively attached to firing member 6440, as well as to a firing drive shaft intermediate portion 2222 or other firing system arrangement. The operation of the intermediate portion of firing drive shaft 2222 to drive and retract the distal firing bar has been discussed in detail previously and will not be repeated for the sake of brevity. Other arrangements of firing bars and firing systems (both motor-actuated and manually operated) may also be employed to actuate the firing member without departing from the character and scope of the present invention.

[00321] The illustrated 6400 surgical end actuator is also configured for articulation around a pivot axis B-B that is substantially transverse to the axis SA-SA of the drive shaft. As seen in Figures 72 through 79, the surgical end actuator 6400 includes an end actuator mounting assembly 6490 that is adapted to be pivotally mounted, for example, to a distal drive shaft frame that includes a pivot pin that is configured to be rotatably received within the 6492 mounting hole in the 6490 end actuator mounting assembly. articulation of the type described above. As seen in Figure 74, a pair of cam plates 6500 are non-movably attached by a tension pin 6502 to, for example, end actuator mounting assembly 6490. As can be seen further in Figure 74 , each cam plate 6500 has a cam slot 6504 having a closing wedge portion 6505 and an opening wedge portion 6507. The closing wedge portion 6505 is formed from two opposing closing cam surfaces 6506 , and the opening wedge portion 6507 is formed from two opposing opening cam surfaces 6508. The elongated raceway 6412 includes two proximally extending actuator arms 6416 each having an opening pivot pin 6418 and a 6419 closing swivel pin that project laterally from the arms. Open and close pivot pins 6418 and 6419 are received with cam slot 6504 of a matching cam plate 6500. Such an arrangement serves to movably or pivotally seat the first jaw 6410 on the end actuator mounting assembly 6490.

[00322] The illustrated surgical end actuator 6400 further comprises a second jaw 6460 that may comprise an anvil 6462. The illustrated anvil 6462 includes an anvil body 6464 that includes an elongated slot 6466 and two clip-forming surfaces 6468 formed on each side of it. Anvil 6462 further has a proximal end portion 6470 that includes two proximally extending actuator arms 6472 projecting therefrom. Each actuator arm 6472 has an opening pivot pin 6474 and a closing pivot pin 6476 projecting laterally from the arms which are also received in the cam slot 6504 of a corresponding cam plate 6500. Such an arrangement serves to movably or pivotally seat the second jaw 6460 on the end actuator mounting assembly 6490.

[00323] The first and second claws 6410 and 6460 are movably actuated by a locking system of the various types disclosed here. For example, a first closure drive system 30 can be employed to actuate a closure tube in the manner described herein. Shutoff tube 260 may also be attached to an end actuator shutoff sleeve 6572 which can be pivotally attached to the shutoff tube by a double pivot shutoff sleeve assembly in the manner described above. As described above, for example, the axial movement of the closure tube can be controlled by actuating a closure trigger. As seen in Figures 77 and 78, the 6572 end actuator closing sleeve extends above the 6490 end actuator mounting assembly, as well as the 6410 first jaw actuator arms 6416 and the 6472 actuator arms. of the second jaw 6460. As the closure sleeve 6572 is advanced distally, the distal end 6574 of the closure sleeve 6572 contacts a proximal end 6411 of the first jaw 6410 and a proximal end 6461 of the second jaw 6460 and moves the first and the second claws 6410, 6460 in the distal "DD" direction. As the first and second jaws 6410, 6460 move distally, the locking pivot pins 6419, 6476 enter a locking wedge portion 6505 of the cam slot 6504 and the locking cam surfaces 6506 eccentrically engage the first and second jaws 6410, 6460. second claws 6410, 6460 towards each other for a closed position (Figures 73, 75, 77 and 78).

[00324] To facilitate the opening of the first and second claws 6410, 6460 with the closing sleeve 6572, the closing sleeve 6572 is equipped with two opening tabs that extend inwards 6576 that are configured to engage the rotating pins of closure 6419, 6476 when closure sleeve 6572 is retracted in the proximal "DP" direction by the closure system. As can be seen in Figures 72 and 76, for example, when closing sleeve 6572 moves in the proximal "DP" direction, opening tabs 6576 contact pivoting closing pins 6419, 6476 and also actuate closing pins. closing swivels 6419, 6476 in the proximal direction. Proximal movement of the closing pivot pins 6419, 6476 causes the opening pivot pins 6418 and 6474 to enter the opening wedge portion 6507 of the cam plate slots 6504. The opening cam surfaces 6508 interact with the pivot pins 6418, 6474 and cause actuator arms 6416 and 6472 to swing open on their respective oscillator surfaces 6417 and 6475 as shown in Figures 76 and 79. As with the previously described arrangements in which both the first and second jaws move relative to the SA-SA axis of the drive shaft, the closing wedge portion 6505 and the opening wedge portion 6507 can be configured so that the first and second jaws close in closing rates or closing times differing from each other when undergoing a closing movement.

[00325] Figures 80 to 84 illustrate another surgical end actuator 7400 comprising two claws, one claw being movable in relation to the other claw between open and closed positions. In the illustrated example, the first gripper 7410 comprises an anvil 7412. The illustrated anvil 7412 has an anvil body 7414 with a proximal end portion 7416 that is non-movably attached to an end actuator mounting assembly 7430. For example, the proximal end portion 7416 comprises two vertical sidewalls 7418 that each have a mounting hole 7419. See Figure 82. The end actuator mounting assembly 7430 is received between the vertical sidewalls 7418 and is secured non-movably attached to them by a tension pin 7421 extending therethrough into holes 7419. The end actuator mounting assembly 7430 is adapted to be pivotally mounted, for example, to a frame structure. distal drive shaft that includes a pivot pin that is configured to be rotatably received into the 7432 mounting hole in the 7430 end actuator mounting assembly The 7400 Surgical End Actuator may be pivoted by a linkage lock and first and second linkage rod arrangements of the type described above, or by any of several linkage systems and linkage rod and/or rod/wire arrangements described herein without departing from the character and scope of the present invention. As seen in Figures 80 and 82, an anvil body 7414 also includes an elongated slot 7422 with two clip forming surfaces 7424 formed on each side thereof.

[00326] The surgical end actuator 7400 further includes a second gripper 7440 comprising an elongated groove 7442 that is configured to support a surgical staple cartridge 7450 therein. As in the case of certain surgical staple cartridges discussed above, the cartridge of surgical staples 7450 is configured to operatively support within it a plurality of staple drivers (not shown) which operatively support surgical staples (not shown) therein. The staple drivers are movably supported within corresponding driver cavities 7452 formed in the surgical staple cartridge 7450. The staple drivers are arranged in rows on either side of an elongated slot 7454 in the surgical staple cartridge 7450 to accommodate passage axial thrust of a trigger member 7460 therethrough. A cartridge tray 7451 attaches to the staple cartridge 7450 to prevent the staple drivers from falling out of their respective driver cavities 7452 when the surgical end actuator 7400 is manipulated in various orientations. A wedge slider 7462 is movably supported within surgical staple cartridge 7450 and is configured to be actuatively engaged by trigger member 7460 when trigger member 7460 is actuated from a home position adjacent the proximal end of the trigger cartridge. surgical staples 7450 to a final position within a distal portion of surgical staple cartridge 7450. As discussed above, when wedge slider 7462 is driven in a distal direction through surgical staple cartridge 7450, wedge slider 7462 contacts in a actuated manner with the staple drivers to drive them toward the surface of the cartridge platform (not shown). Firing member 7460 includes a tissue cutting surface 7464 that serves to cut tissue trapped between jaws 7410, 7440 when firing member 7460 is distally actuated. A distal firing bar 280 of the other various types described herein is operatively attached to firing member 7460, as well as to a firing drive shaft intermediate portion 2222 or other firing system arrangement. The operation of the firing drive shaft intermediate portion 2222 to drive and retract the distal firing bar 280 has been discussed in detail previously and will not be repeated for the sake of brevity. Other arrangements of firing bars and firing systems (both motor-actuated and manually operated) may also be employed to actuate the firing member without departing from the character and scope of the present invention. A first jaw cover 7415 is releasably attached to the anvil 7412 and a second jaw cover 7441 is releasably attached to the second jaw 7440 for assembly purposes and also to prevent infiltration of tissue and/or bodily fluid into the first and on the second prongs, which may hinder or interfere with the operation of firing member 6340.

[00327] As can be seen in Figure 82, the elongated channel 7442 includes a proximal end portion 7444 that has two lateral side portions 7445. Each lateral side portion 7445 has a U-shaped or end-shaped slot therein 7446 which is adapted to receive a corresponding pivot pin 7426 projecting laterally from the proximal end portion 7416 of the anvil body 7414. Such an arrangement serves to movably or pivotally seat the second claw 7440 or elongated groove 7442 on the first gripper 7410 or anvil 7412. As seen more specifically in Figures 80, 82, and 84, closing ramp segments 7447 are formed over the proximal end 7444 of the elongated groove 7442. In addition, each lateral side 7445 of the proximal end 7444 has a lateral recess area 7448 formed therein. Each side recessed area 7448 is located proximal to a corresponding closing ramp segment 7447. A ramp or opening cam 7449 is formed adjacent the proximal end of each side recessed area 7448. Each ramp or opening cam 7449 terminates in a top surface 7580. See Figures 82 and 84.

[00328] The second claw 7440 or elongated channel 7442 can be movably actuated in relation to the first claw 7410 or anvil 7412 by a closing system of the various types disclosed herein. For example, a closure drive system of the types described herein may be employed to actuate a closure tube of the types described herein, as discussed in more detail earlier. The shutoff tube may also be attached to a 7572 end actuator shutoff sleeve which can be pivotally attached to the shutoff tube by a double pivot arrangement in the manner described above. As described above, for example, the axial movement of the closure tube can be controlled by actuating a closure trigger. In other embodiments, the closure tube can be axially moved by means of a robotic control system, etc. As seen in Figures 80, 81, 83, and 84, the end actuator closing sleeve 7572 extends above the end actuator mounting assembly 7430 as well as the proximal end portion 7444 of the elongated groove 7442 of the second jaw 7440. The end actuator closing sleeve 7572 includes two diametrically opposed opening members 7574 that are configured to operatively engage the proximal end portion 7444 of the second jaw 7440 or elongated groove 7442. In the illustrated embodiment, the opening members 7574 comprise inwardly extending opening tabs 7576 that are formed on end actuator closing sleeve portions 7572.

[00329] The second jaw 7440 is moved to a closed position (Figures 81 and 83) by advancing the end actuator closing sleeve 7572 in the distal direction "DD". As the end actuator closing sleeve 7572 moves distally, its distal end 7575 contacts the closing ramp segments 7447 that are formed at the proximal end 7444 of the elongated raceway 7442 and serves to eccentrically actuate the elongated raceway 7442 in the direction of the anvil 7412. After the closing sleeve of the end actuator 7552 is moved to its most distal position, the distal end 7575 contacts an adjoining surface 7443 in the elongated groove 7442 to maintain the closing load or force in the elongated groove 7442. See Figures 81 and 83. When the end actuator closing sleeve 7572 is in the fully closed position, the ends of the opening tabs 7576 are received in the corresponding side recess areas 7448. To move the second jaw 7440 or elongated groove 7442 to an open position, the closure system is actuated to move closure sleeve 7572 in the proximal "DP" direction. As the end actuator closing sleeve 7572 moves proximally, the opening tabs 7572 slide over the corresponding opening ramp or cam 7449 on the proximal end portion 7444 of the elongated raceway 7442 to eccentrically actuate or pivot the elongated raceway 7442 away from it. that of anvil 7412. Each tab slides over cam 7449 to top surface 7580 and serves to positively retain elongated groove 7442 in that fully open position. See Figure 84.

[00330] Figures 85 to 87 illustrate another surgical end actuator 8400 comprising two claws 8410, 8440 that are simultaneously movable between the open and closed positions with respect to the geometric axis SA-SA of the drive shaft. In the illustrated example, the first jaw 8410 comprises an anvil 8412. The illustrated anvil 8412 has an anvil body 8414 having a proximal end portion 8416 movably interfacing with an end actuator adapter 8600. As can be seen in Figure 85, end actuator adapter 8600 includes two distally extending distal walls 8602 each having a lateral pivot pin 8604 projecting laterally from the arms. Each side pivot pin 8604 is received in a corresponding open-ended U-shaped slot 8418 formed in the side walls 8417 of the proximal end portion 8416 of the anvil 8412. See Figure 85. Such an arrangement allows the elongated groove 8412 to be moved or moved. pivoted relative to the end actuator adapter 8600. As further seen in Figure 85, the end actuator adapter 8600 is non-movably attached to an end actuator mounting assembly 8430. For example, the adapter end actuator assembly 8600 further includes two vertical side walls 8606 that each have a mounting hole 8608. The end actuator mounting assembly 8430 is received between the vertical side walls 8606 and is non-movably attached to the same by a tension pin 8421 which extends therethrough into holes 8608. Actuator mounting assembly 8430 is adapted to be m Pivotally mounted, for example, to a distal drive shaft frame that includes a pivot pin that is configured to be pivotally received within the 8432 mounting hole in the 8430 end actuator mounting assembly. Surgical end 8400 may be pivoted by a knuckle lock and first and second knuckle rod arrangements of the type described above, or by any of the various knuckle systems and knuckle rod and/or rod/wire arrangements described herein without deviate from the character and scope of the present invention. As seen in Figure 85, anvil body 8414 also includes an elongated slot 8422 with two staple forming surfaces 8424 formed on each side thereof.

[00331] The surgical end actuator 8400 further includes a second gripper 8440 comprising an elongated groove 8442 that is configured to support a surgical staple cartridge 8450 therein. As in the case of the various surgical staple cartridges discussed above, the cartridge of surgical staples 8450 is configured to operatively support within it a plurality of staple drivers (not shown) which operatively support surgical staples (not shown) therein. The staple drivers are movably supported within corresponding driver cavities 8452 formed in the surgical staple cartridge 8450. The staple drivers are arranged in rows on either side of an elongated slot 8454 in the surgical staple cartridge 8450 to accommodate passage axial thrust of a trigger member 8460 therethrough. A cartridge tray 8451 attaches to the staple cartridge 8450 to prevent the staple drivers from falling out of their respective driver cavities 8452 when the surgical end actuator 8400 is manipulated in various orientations. A wedge slider 8462 is movably supported within the surgical staple cartridge 8450 and is configured to be actuatively engaged by trigger member 8460 when trigger member 8460 is actuated from a home position adjacent the proximal end of the trigger cartridge. surgical staples 8450 to a final position within a distal portion of surgical staple cartridge 8450. As discussed above, when wedge slider 8462 is driven in a distal direction through surgical staple cartridge 8450, wedge slider 8462 contacts in a actuated manner with the staple drivers to drive them toward the surface of the cartridge platform (not shown). Firing member 8460 includes a tissue cutting surface 8464 that serves to cut tissue trapped between jaws 8410, 8440 when firing member 8460 is distally actuated. A distal firing bar 280 of the other various types described herein is operatively attached to firing member 8460, as well as to a firing drive shaft intermediate portion 2222 or other firing system arrangement. The operation of the firing drive shaft intermediate portion 2222 to drive and retract the distal firing bar 280 has been discussed in detail previously and will not be repeated for the sake of brevity. Other arrangements of firing bars and firing systems (both motor-actuated and manually operated) may also be employed to actuate the firing member without departing from the character and scope of the present invention. A first jaw cover 8415 is releasably attached to the anvil 8412 and a second jaw cover 8441 is releasably attached to the second jaw 8440 for assembly purposes and also to prevent infiltration of tissue and/or bodily fluid into the first and on the second prongs, which may hinder or interfere with the operation of firing member 8460.

[00332] As can be seen in Figure 85, the elongated channel 8442 includes a proximal end portion 8444 that has two lateral side portions 8445. Each lateral side portion 8445 has a U-shaped or end-shaped slot therein 8446 which is adapted to receive a corresponding lateral pivot pin 8604 projecting laterally from the end actuator adapter 8600. Such an arrangement serves to movably or pivotally seat the second jaw 8440 or elongated groove 8442 in the first jaw 8410 or anvil 8412. As can also be seen in Figure 85, closing ramp segments 8447 are formed over the proximal end 8444 of the elongated groove 8442. In addition, each lateral side 8445 of the proximal end portion 8444 has a second area of side recess 8448 formed therein. Each second side recessed area 8448 is located proximal to a corresponding second closing ramp segment 8447. A second ramp or opening cam 8449 is formed adjacent the proximal end of each second side recessed area 8448. Each second ramp or opening cam 8449 terminates in a second top surface 8450. Similarly, a first opening area recess 8420 is formed in the bottom of each of the side walls 8417 of the proximal end portion 8416 of the anvil 8412. A first ramp or opening cam 8426 is formed adjacent the proximal end of each first lateral recess area 8420. opening ramp or cam 8426 terminates in a first top surface 8428.

[00333] The second claw 8440 or elongated groove 8442 and the first claw 8410 or anvil 8412 can be moved simultaneously between open and closed positions by a closure system of the various types disclosed herein. For example, a closure drive system 30 can be employed to actuate a closure tube 260 in the manner described herein. Shutoff tube 260 may also be attached to an end actuator shutoff sleeve 8572 which can be pivotally attached to shutoff tube 260 by a double pivot arrangement in the manner described above. As described above, for example, the axial movement of the closure tube 260 can be controlled through actuation of a closure trigger 32. In other embodiments, the closure tube can be moved axially via a robotic control system, etc. . As seen in Figures 86 and 87, the end actuator closing sleeve 8572 extends above the end actuator mounting assembly 8430, the end actuator adapter 8600, as well as the proximal end portion 8444 of the elongated groove 8442 of the second jaw 8440 and the proximal end portion 8416 of the first jaw 8410 or anvil 8412. The end actuator closing sleeve 8572 includes two diametrically opposed first opening members 8574 that are configured to operatively engage the end portion proximal 8416 of the first jaw 8410. In the illustrated embodiment, the first opening members 8574 comprise inwardly extending first opening tabs 8576 that are formed on portions of the end actuator closing sleeve 8572. End actuator closure 8572 additionally includes two diametrically opposed second opening members 8580 that are configured to operatively engage the proximal end portion 8444 of the second jaw 8440. In the illustrated embodiment, the second opening members 8580 comprise inwardly extending second opening tabs 8582 that are formed on end actuator closing sleeve portions 8572.

[00334] The first and second claws, 8410, 8440 are moved simultaneously to a closed position (Figure 86) by advancing the closing sleeve of the end actuator 8572 in the distal direction "DD". As the end actuator closing sleeve 8572 moves distally, its distal end 8575 contacts the bottom of the proximal end portion 8416 of the first jaw 8410 or anvil 8412, as well as the closing ramp segments 8447 that are formed at the proximal end 8444 of the elongated groove 8442 and serves to eccentrically actuate the first and second jaws 8410, 8440 towards each other. After the end actuator closing sleeve 8572 is moved to its most distal position, the distal end 8575 of the end actuator closing sleeve 8572 contacts first abutting surfaces 8419 on the first jaw 8410 or anvil 8412, as well as a second adjoining surface 8443 on second jaw 8440 or elongated groove 8442 to maintain closing load or closing force on both jaws 8410, 8440. See Figure 86. When end actuator closing sleeve 8572 is in position. fully closed position, the ends of first opening flaps 8576 are received in corresponding first side recess areas 8420, and the ends of second opening flaps 8582 are received in corresponding second side recess areas 8448. To move the first and second jaws 8410, 8440 away from each other to their open positions, the closure system is actuated to move closure sleeve 8572 in the proximal "DP" direction. As the end actuator closing sleeve 8572 moves proximally, the first opening tabs 8576 slide over the corresponding first ramp or opening cam 8426 at the bottom of the proximal end portion 8416 of the first gripper 8410 to eccentrically actuate or pivot the first claw 8410 or anvil 8412 in an opposite direction from the second claw 8440 or elongated groove 8442, and the second opening tabs 8582 slide over corresponding second ramps 8449 on the proximal end portion 8444 of the elongated groove 8442 to eccentrically actuate or pivot the elongated groove 8442 in an opposite direction from the first gripper or anvil 8412. Each of the first tabs 8576 slides over the corresponding cam or ramp 8426 on the corresponding first locking surface 8428 and each of the second tabs 8582 slides over the corresponding second cam or ramp 8449 on the second locking surface 8450 to thereby retain the pri First and second jaws 8410, 8400 in open position. The reader will recognize that the axial position of the first tabs 8576 relative to the second tabs 8582 can be positioned so as to simultaneously move the first and second claws in opposite directions from each other or they can be axially displaced so that one of the claws move before the other moves.

[00335] Figures 88 to 93 illustrate portions of another surgical instrument 9010 that includes a surgical end actuator 9300 that makes an operational interface with an elongated drive shaft assembly 9200. The surgical end actuator 9300 is similar to the end actuator 300 which has been discussed in detail above and includes a first gripper in the form of an elongated groove 9302 which is configured to operatively support therein a surgical staple cartridge 304. The illustrated surgical end actuator 9300 further includes a second gripper below the shape of an anvil 310 which is supported in the elongated channel 9302 for movement relative thereto. Anvil 310 can be movably actuated by the closure system described above and shown in Figures 88 and 91. For example, a first closure drive system can be employed to actuate a closure tube 260 in the manner described herein. Shutoff tube 260 is attached to an end actuator shutoff sleeve 272 which is pivotally attached to shutoff tube 260 by a double pivot shutoff sleeve assembly 271 in the manner described above. As described above, for example, the axial movement of the closure tube 260 can be controlled through actuation of a closure trigger. As also described above, the closing sleeve 272 includes opening cams which serve to movably actuate the anvil 310 to an open position. In use, the closing tube 260 is translated distally ("DD" direction) to close the anvil 310, for example, in response to actuation of the closing trigger. The anvil 310 is closed by distally translating the closing tube 260 in the distal "DD" direction, as well as the end actuator closing sleeve 272 which is pivotally coupled thereto. When end actuator closing sleeve 272 is actuated distally, cam tabs 358 of opening cams 354 move distally within cam slots 318 in anvil 310 to operatively interface with or slide over cam surfaces 319 to actuate. eccentrically move the body portion 312 of the anvil 310 away from the surgical staple cartridge 304 to an open position. The anvil 310 is closed by distally translating the closure tube 260 in the distal "DD" direction until the distal end 275 of the end actuator closure sleeve 272 slides over the anvil attachment arms 316 to contact the anvil. element that causes cam tabs 358 to move in the proximal "DP" direction within cam slots 318 over cam surfaces 319 to pivot anvil 310 to the open position.

[00336] As can be seen in Figure 91 for example, the elongated drive shaft assembly 9200 includes a drive shaft frame or two-piece center column assembly 9812 over which the closure tube assembly 260 is received. Center column assembly 9812 includes a proximal center column portion 9814 and a distal center column portion 9816. Proximal center column portion 9816 can be pivotally seated in the handle or housing (not shown) in the various ways described herein to facilitate ease of use. Rotation of the 9300 Surgical End Actuator about the SA axis of the drive shaft. Although not shown, surgical instrument 9010 may also include a firing rod array and any of the various firing drive system arrangements disclosed herein for driving a firing member through the surgical staple cartridge in the various ways discussed above. As seen in Figure 91, the distal center column portion 9816 includes a distal end portion 9818 having therein an upwardly projecting pivot pin 9819 that is adapted to be pivotally received within a mounting hole. pivot 9328 formed on the proximal end portion 9320 of the elongated channel 9302. Such an arrangement facilitates pivotal displacement of the elongated channel 9302 of the surgical end actuator 9300 with respect to the central column assembly 9812 about a hinge axis B-B that is defined through pivot hole 9328. As indicated above, pivot axis B-B is transverse to axis SA-SA of driveshaft which is defined by elongated driveshaft assembly 9200.

[00337] Still referring to Figure 91, the elongated drive shaft assembly 9200 additionally includes a linkage system, generically designated as 9900, which includes a first linkage bar 9910 and a second linkage bar 9920. linkage 9910 operationally interfaces with a first linkage motor 9912 that is operatively supported in the handle of the surgical instrument or housing or portion of a robotically controlled system. As can be seen in Figures 92 and 93, the first pivot bar 9910 is attached to a first pivot nut 9914 which is threadably received on a first threaded drive shaft 9916 of the first pivot motor 9912. threaded drive shaft 9916 in a first direction of rotation will result in distal advancement of the first pivot bar 9910 in the distal "DD" direction, and rotation of the first threaded drive shaft 9916 in a second or opposite direction of rotation will result on the proximal advance of the first 9910 Pivot Drive Bar in the proximal "DP" direction.

[00338] The illustrated articulation system 9900 also includes a second articulation bar 9920 that interfaces operationally with a second articulation motor 9922 that is operatively supported in the handle or compartment of the surgical instrument, or portion of a robotically controlled system. As seen in Figures 92 and 93, the second linkage bar 9920 is attached to a second linkage nut 9924 which is threadably received on a second threaded drive shaft 9926 of the second linkage motor 9922. threaded drive shaft 9926 in the first direction of rotation will result in proximal advancement of the second pivot bar 9920 in the proximal "DP" direction, and rotation of the second threaded drive shaft 9926 in a second or opposite direction of rotation will result on the distal advancement of the second 9920 Pivot Drive Bar in the distal "DD" direction.

[00339] The link system 9900 additionally includes a set of cross links 9940 that is operatively attached to the first and second link bars 9910, 9920. As can be seen in Figure 91, the set of cross links 9940 includes an element of center support member 9950 that is pivotally pinned to the proximal end 9320 of the elongated groove 9302 with a first pin 9952. The center support member 9950 further includes a proximal connecting tab 9954 that includes a slot 9956 for receiving a second pin 9958 at its interior for pivotally securing the proximal connector tab 9954 to the distal end portion 9818 of the distal center column portion 9816. The pin and slot arrangement facilitates pivotal and axial displacement of the central support member 9950 relative to the column assembly center support member 9812. Center support member 9950 further includes a slot 9960 for receiving a firing bar therethrough. Center support member 9950 serves to provide lateral support to the trigger bar as it flexes to accommodate the 9300 surgical end actuator pivot.

[00340] As can be seen more specifically in Figures 92 and 93, the central support element 9950 has a proximal coupling tab portion 9970 that facilitates the attachment of the first and second pivot bars 9910, 9920 thereto. In particular, a distal end 9911 of the first pivot bar 9910 is pivotally attached to a first pivot link 9972 which is pivotally pinned to the proximal coupling tab portion 9970. Similarly, the distal end 9921 of the second pivot bar 9920 is pivotally pinned to a second pivot link 9974 that is pivotally pinned to the proximal coupling tab portion 9970 of central support member 9950. Figure 92 illustrates the pivot of the link. surgical end actuator 9300 in the direction represented by arrow 9980. As seen in this figure, the first threaded drive shaft 9916 of the first linkage motor is rotated in a first direction of rotation to drive the first linkage bar 9910 in the distal direction . Additionally, the second threaded drive shaft 9926 of the second linkage motor 9922 is rotated in a second direction of rotation to drive the second linkage bar 9920 in the proximal direction. The first and second linkage motors 9912, 9922 are operated by a computer controlled system and, as can be seen in Figure 92, the distance that the first linkage bar 9910 moves in the distal direction is not equal to the distance that the second pivot bar 9920 moves in proximal direction.

[00341] Figure 93 illustrates the articulation of the surgical end actuator 9300 in the direction represented by the arrow 9982. As can be seen in this figure, the second threaded drive shaft 9926 of the second articulation motor 9922 is rotated in a first direction of rotation to engage the second 9920 pivot bar in the distal direction. Furthermore, the first threaded drive shaft 9916 of the first linkage motor 9912 is rotated in a second direction of rotation to drive the first linkage bar 9910 in the proximal direction. The first and second linkage motors 9912, 9922 are operated by a computer controlled system and, as can be seen in Figure 92, the distance that the second linkage bar 9920 moves in the distal direction is not equal to the distance the second linkage bar 9920 moves in the distal direction. first pivot bar 9910 moves in proximal direction. In alternate arrangements, only one linkage motor may be employed to link the end actuator. In such arrangements, for example, the second link may be proximally coupled to the first link via a rack-and-pinion arrangement similar to the rack-and-pinion arrangements disclosed in detail herein.

[00342] Figures 94 and 95 illustrate surgical staple cartridges 9304 and 9304' that each include a light element 9305 for illuminating the distal end of the surgical end actuator on which it is supported. Each of the staple cartridges 9304, 9304' may have conductors (not shown) that are disposed in the bottom of the cartridge or on the sides of the cartridge that are configured for electrical contact with corresponding conductors in the elongated raceway that communicate with a source of electrical power located in the cable or instrument compartment. In this way, when the cartridges 9304, 9304' are properly seated in the elongated groove of the surgical end actuator, the light 9305 within it can receive power from the electrical power source in the cable or housing through corresponding conductors.

[00343] The surgical instrument systems described here are driven by an electric motor; however, the surgical instrument systems described herein may be induced in any suitable manner. In various examples, the surgical instrument systems described herein can be triggered, for example, by a manually operated trigger. The motor or motors may comprise a portion or portions of a robotically controlled system.

[00344] The surgical instrument systems described in the present invention were described along with the positioning and deformation of the staples; however, the embodiments described in the present invention are not so limited. Several modalities are envisaged, which position fastening elements, in addition to the clamps, such as, for example, clamps or tacks. Furthermore, various embodiments are contemplated which utilize any suitable means to seal the tissue. For example, an end actuator, in accordance with various embodiments, may comprise electrodes configured to heat and seal tissue. Also, for example, an end actuator according to certain embodiments, can apply vibrational energy to seal the tissue.

[00345] The surgical instrument systems described herein are driven by one or more electric motors; however, the surgical instrument systems described herein may be induced in any suitable manner. In various examples, the surgical instrument systems described herein can be triggered, for example, by a manually operated trigger.

Examples

[00346] Example 1 - A surgical instrument comprising a surgical end actuator The surgical end actuator comprises a first gripper and a second gripper that is selectively movable with respect to the first gripper between an open position and a closed position. The surgical instrument further comprises a closure element that is axially movable in response to applied closing and opening movements. The closing element comprises at least one opening cam projecting therefrom for movably engaging a corresponding grooved cam surface on the second claw so that, upon application of the opening movement to the closing element, the at least one opening cam movably engages the corresponding grooved cam surface to move the second claw to the open position, and upon application of the closing movement to the closing element, the closing element engages the second claw to move the second claw to one of the closed positions.

[00347] Example 2 - The surgical instrument of Example 1, wherein the at least one opening cam comprises a first opening cam that extends laterally inwardly from the closing element and engages a first of the grooved cam surfaces correspondents. A second opening cam extends laterally inwardly from the closing element and engages a second one of the corresponding grooved cam surfaces.

[00348] Example 3 - The surgical instrument of Example 2, in which the second opening cam is diametrically opposite the first opening cam on the closing element.

[00349] Example 4 - The surgical instrument of Examples 1, 2 or 3, in which the at least one opening cam is removablely attached to the closing element.

[00350] Example 5 - The surgical instrument of Example 1, 2, 3 or 4, in which at least one opening cam is configured to engage via press fit with the closing element.

[00351] Example 6 - The surgical instrument of Example 1, 2 or 3, in which the at least one opening cam is integrally formed in the closing element.

[00352] Example 7 - The surgical instrument of Example 1, 2, 3 or 6, in which the at least one opening cam is crimped into a wall of the closing element so that a crimped portion of the wall extends movably through a corresponding portion of the first jaw to movably engage the corresponding grooved cam surface on the second jaw.

[00353] Example 8 - The surgical instrument of Example 1, 2, 3, 4, 5, 6 or 7, wherein the at least one opening cam extends inwardly through a portion of the first claw to engage the surface corresponding slotted cam.

[00354] Example 9 - The surgical instrument of Example 1, 2, 3, 4, 5, 6, 7 or 8, the second claw comprising a pair of laterally extending pivoting pins configured to be pivotally received in corresponding swivel pin holes in the first jaw to facilitate pivotal displacement of the second jaw relative to the first jaw.

[00355] Example 10 - The surgical instrument of Example 1, 2, 3, 4, 5, 6, 7, 8 or 9, in which the first claw is configured to operationally support a cartridge of surgical staples and the second claw comprises a anvil.

[00356] Example 11 - A surgical instrument comprising a surgical end actuator. The surgical end actuator comprises a first jaw and a second jaw that is pivotally supported on the first jaw for selective movement relative to the first jaw between an open position and a closed position. The second claw comprises first and second cam surfaces. The surgical instrument further comprises an end actuator closure sleeve comprising a first aperture cam extending laterally inwardly from the end actuator closure sleeve through a portion of the first jaw to operatively engage the first engagement surface. cam. A second opening cam extends laterally inwardly from the end actuator closing sleeve through another portion of the first jaw to operatively engage the second cam surface so that upon application of an opening motion to the sleeve of the end actuator, the first opening cam movably engages the first cam surface and the second opening cam movably engages the second cam surface to move the second gripper to the open position, and upon application of a closing movement to the end actuator closing sleeve, the end actuator closing sleeve movably engages the second jaw to move the second jaw to one of the closed positions.

[00357] Example 12 - The surgical instrument of Example 11, in which the first and second opening cams are removablely attached to the closing sleeve of the end actuator.

[00358] Example 13 - The surgical instrument of Example 11, in which the first and second opening cams comprise permanent deformations in the closing sleeve of the end actuator.

[00359] Example 14 - The surgical instrument of Example 11 or 13, in which the first and second opening cams are formed by crimping the closing sleeve of the end actuator.

[00360] Example 15 - The surgical instrument of Example 14, in which the first and second opening cams are crimped at 90 degree angles to adjacent portions of an outer surface of the end actuator closing sleeve.

[00361] Example 16 - The surgical instrument of Example 11, 12, 13, 14 or 15, with the first opening cam movably projecting through a first slit in the first claw to operationally interface with the first cam surface on the second jaw, and wherein the second opening cam movably projects through a second slot in the first jaw to operatively interface with the second cam surface on the second jaw.

[00362] Example 17 - The surgical instrument of Example 11, 12, 13, 14, 15 or 16, the second claw comprising a pair of laterally extending pivoting pins configured to be pivotally received in pivoting pin holes on the first jaw to facilitate pivotal displacement of the second jaw relative to the first jaw.

[00363] Example 18 - The surgical instrument of Example 11, 12, 13, 14, 15, 16 or 17, in which the first claw is configured to operatively support a cartridge of surgical staples and the second claw comprises an anvil.

[00364] Example 19 - A surgical instrument comprising a compartment and a closing system that is operationally supported by the compartment and is configured to generate opening and closing movements. An elongated driveshaft assembly that interfaces with the housing. The elongated drive shaft assembly comprises an end actuator closing sleeve that is axially movable in response to applications thereto of closing and opening motions. The surgical instrument further comprises a surgical end actuator comprising an elongated raceway that operatively interfaces with the elongated drive shaft assembly and is configured to operatively support therein a cartridge of surgical staples. An anvil is movably supported in the elongated groove for selective movement relative to the former between an open position and a closed position. The surgical instrument further comprises at least two opening cams projecting from the end actuator closing sleeve such that upon application of the opening movement to the end actuator closing sleeve, the at least two opening cams interface operationally with corresponding cam surfaces on the anvil in a first direction to move the anvil to the open position, and upon application of closing movement to the end actuator closing sleeve, the end actuator closing sleeve interfaces operating with the anvil in a second direction to cause the anvil to move to one of the closed positions.

[00365] Example 20 - The surgical instrument of Example 19, in which at least one opening cam is formed in the closing sleeve of the end actuator.

[00366] Example 21 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. An end actuator mounting assembly is movably coupled to the elongated driveshaft assembly for selective pivoting about a pivot axis that is transverse to the driveshaft axis. The first and second jaws are movably coupled to the end actuator mounting assembly such that the first and second jaws are each movable relative to each other and the axis of the drive shaft about a common pivot axis between an open position and a closed position. The first claw comprises a first point and the second claw comprises a second point, the first and second points being situated along a common axis which is perpendicular to the geometric axis of the drive shaft. The first point is a first distance from the axis of the drive shaft when the first grip is in the open position, and the second point is a second distance from the axis of the drive shaft when the second grip is in the open position, where the second distance is different from the first distance. The surgical instrument further comprises means for urging the first and second jaws away from each other into the open position and means for applying closing motions to the first and second jaws to move the first and second jaws towards each other for closed positions.

[00367] Example 22 - The surgical instrument of Example 21, in which one of the first and second claws comprises an elongated channel that is configured to operatively support a cartridge of surgical staples inside it, and the other of the first and second claws second claw comprises an anvil.

[00368] Example 23 - The surgical instrument of Example 21, the first claw comprising a cartridge of surgical staples and the second claw comprising an anvil, the second distance being greater than the first distance.

[00369] Example 24 - The surgical instrument of Example 21, 22 or 23 further comprising a trigger member that is supported for axial displacement between the first and second claws when the first and second claws are in one of the closed positions.

[00370] Example 25 - The surgical instrument of Example 21, 22, 23 or 24, in which the end actuator mounting assembly comprises a pair of lateral sides. Each lateral side comprises a laterally projecting swivel pin that defines the pivot shaft. Each of the first and second jaws is pivotally supported on each of the laterally projecting swivel pins.

[00371] Example 26 - The surgical instrument of Example 21, 22, 23, 24 or 25, the displacement means comprising a spring located between the first and second claws.

[00372] Example 27 - The surgical instrument of Example 21, 22, 23, 24, 25 or 26, the means for applying closing movements comprises an axially movable closing sleeve of the end actuator that is configured to simultaneously engage portions of the first and second jaws when the end actuator closing sleeve is axially moved in a first direction.

[00373] Example 28 - The surgical instrument of Example 21, 22, 23, 24, 25, 26 or 27 further comprising an axially movable trigger member that is supported for axial displacement between the first and second claws when the first and the second claws are in one of the closed positions.

[00374] Example 29 - The surgical instrument of Example 28, wherein the trigger member comprises a tissue cutting surface.

[00375] Example 30 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. An end actuator mounting assembly is movably coupled to the elongated driveshaft assembly for selective pivoting about a pivot axis that is transverse to the driveshaft axis. The first and second jaws are movably coupled to the end actuator mounting assembly such that the first and second jaws are each movable relative to each other and the axis of the drive shaft between a position open and a closed position, such that applying a closing move to the first and second grips causes one of the first and second grips to move to one of the closed positions at a closing rate that is different from the another closing rate at which the other one of the first and second grips moves to the closed position. The surgical instrument further comprises means for selectively applying a closing motion to the first and second jaws and an opening motion to the first and second jaws to selectively move the first and second jaws from the closed positions to the open position.

[00376] Example 31 - The surgical instrument of Example 30 further comprising an axially movable trigger member that is supported for axial displacement between the first and second jaws when the first and second jaws are in one of the closed positions.

[00377] Example 32 - The surgical instrument of Example 30 or 31 further comprising a first cam slot in the end actuator mounting assembly. The first cam slot defines a first closing wedge portion and a first opening wedge portion. A second cam slot is also provided on the end actuator mounting assembly. The second cam slot defines a second closing wedge portion and a second opening wedge portion. The first gripper comprises a pair of first opening members and a pair of first closing members, one of the first opening members and one of the first closing members being movably received within the first cam slot. One of the first opening members and the other of the first closing members are received within the second cam slot. The second claw comprises a pair of second opening members and a pair of second closing members, one of the second opening members and one of the second closing members being movably received in the first cam slot. One of the second opening members and one of the second closing members are movably received within the second cam slot. The selective application means is configured to move the first and second claws in a first direction so as to cause one of the first closure members and one of the second closure members to moveably enter the first wedge portion of one of the first closure members and the other of the second closure members movably enter the second closure wedge portion to thereby cause the first and second claws to move towards each other. another for one of the closed positions. The selective application means is further configured to move the first and second claws in a second direction so as to cause one of the first opening members and the other of the second opening members to move to the first wedge portion. of the opening members and the other of the first opening members and the other of the second opening members move to the second opening wedge portion to thereby cause the first and second claws to move away from each other to the open position.

[00378] Example 33 - The surgical instrument of Example 32, in which the first cam slot is formed in a first cam plate that is coupled to the end actuator mounting assembly. The second cam slot is formed in a second cam plate that is mated to the end actuator mounting assembly.

[00379] Example 34 - The surgical instrument of Example 32 or 33, the selective application means comprising an end actuator closing sleeve that is axially movable in response to applications to the same of closing and opening movements. The end actuator closing sleeve comprises a first opening tab corresponding to one of the first opening members and the other of the second opening members for operational contact therewith when the end actuator closing sleeve is moved. in the second direction. A second opening tab corresponds to the other one of the first opening members and the other one of the second opening members for operative contact therewith when the end actuator closing sleeve is moved in the second direction.

[00380] Example 35 - The surgical instrument of Example 30, 31, 32, 33 or 34, in which one of the first and second claws comprises an elongated channel that is configured to operationally support a cartridge of surgical staples inside it, and the other of the first and second claws comprises an anvil.

[00381] Example 36 - The surgical instrument of Example 31, 32, 33, 34 or 35 further comprising a trigger member that is supported for axial displacement between the first and second claws when the first and second claws are in a of closed positions.

[00382] Example 37 - A surgical instrument comprising a first claw and a second claw that are pivotally supported relative to each other for selective pivotal displacement between an open position and a closed position. A closing member is axially movable in response to applications of both closing and opening motions at the same time. The closure member comprises at least two inwardly extending opening tabs that are configured to operatively engage corresponding portions of at least one of the first and second claws upon application of opening movements to the closing member to move at least one between the first and second jaws to the open position.

[00383] Example 38 - The surgical instrument of Example 37, wherein at least one of the at least two opening flaps extending inwards is integrally formed in the closure element.

[00384] Example 39 - The surgical instrument of Example 37, each of the at least two inwardly extending opening flaps being removablely affixed to the closure element.

[00385] Example 40 - The surgical instrument of Example 37, 38 or 39, one of the first and second claws comprising an elongated channel that is configured to operationally support a cartridge of surgical staples inside it and the other being between the first and second claws comprises an anvil.

[00386] Example 41 - A surgical stapling instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is operatively coupled to the elongated drive shaft assembly by a pivot joint such that the surgical end actuator is selectively pivotable with respect to the elongated drive shaft assembly about a pivot axis that is transverse to the geometric axis of the drive shaft. The surgical end actuator comprises a cartridge support member that is configured to operatively support therein a cartridge of surgical staples. A longitudinally movable trigger bar extends through the pivot joint and is selectively movable axially from an initial position to an end position within the surgical end actuator. The surgical instrument further comprises a trigger bar locking assembly comprising a displacement member that is operatively supported on the pivot joint and configured to apply a displacement motion to the longitudinally movable trigger bar to flex the longitudinally movable trigger bar to a locked position, whereby the longitudinally movable firing bar is prevented from moving from the initial position to the final position unless an unfired surgical staple cartridge is operatively supported on the cartridge support member.

[00387] Example 42 - The surgical stapling instrument of Example 41, in which the displacement element is supported on a central support element that interfaces with the cartridge support element and the elongated drive shaft assembly. The central support member is configured to laterally support the longitudinally movable trigger bar during pivoting of the surgical end actuator about the pivot axis.

[00388] Example 43 - The surgical stapling instrument of Example 41 or 42, in which the displacement element is configured to prevent the application of the displacement movement to the longitudinally movable trigger bar when the surgical end actuator is being articulated.

[00389] Example 44 - The surgical stapling instrument of Example 41, 42 or 43, wherein the longitudinally movable firing bar comprises a locking cam formed in a portion thereof for engagement with the displacement element.

[00390] Example 45 - The surgical stapling instrument of Example 44, in which the displacement element comprises a flat body comprising a window located inside it, so that the locking cam projects into the window during articulation of the surgical end actuator.

[00391] Example 46 - The surgical stapling instrument of Example 41, 42, 43, 44 or 45, in which the displacement element forces the longitudinally movable firing bar into the locked position after initial application of a firing movement to the bar longitudinally movable firing cartridge, unless the unfired surgical staple cartridge is operatively supported within the cartridge support member.

[00392] Example 47 - The surgical stapling instrument of Example 41, 42, 43, 44, 45 or 46, wherein the unfired surgical staple cartridge comprises a plurality of surgical staples operatively supported within a cartridge body and a wedge slider that is axially movable through the cartridge body to eject the surgical staples from the cartridge when the wedge slider is moved from an unfired position to a fired position within it. The wedge slider is configured for operable engagement with the longitudinally movable firing bar when the longitudinally movable firing bar is in the home position and the wedge slider is in the non-firing position.

[00393] Example 48 - The surgical stapling instrument of Example 41, 42, 43, 44, 45 or 46, with the displacement element forcing the trigger bar into a locked position after initially applying a trigger movement to the bar unless a wedge slider on a surgical staple cartridge that is supported within the cartridge support member is in an unfired position within the surgical staple cartridge and in operable engagement with the longitudinally movable firing bar.

[00394] Example 49 - The surgical stapling instrument of Example 48, in which the wedge slider is configured to prevent the trigger bar from entering a locked position when the wedge slider is in the non-triggered position and after applying a initial firing movement to the longitudinally movable firing bar.

[00395] Example 50 - A surgical stapling instrument comprising a surgical end actuator that includes an elongated channel that is configured to operatively support a cartridge of surgical staples therein. An anvil is supported relative to the elongated groove such that one of the anvil and the elongated groove is selectively movable relative to the other of the anvil and the elongated groove between the open and closed positions. The surgical instrument further comprises an elongated drive shaft assembly that defines a drive shaft axis and comprises a pivot joint that is operatively coupled to the surgical end actuator to facilitate selective articulation of the surgical end actuator relative to the drive assembly. driveshaft elongated about a pivot axis that is transverse to the driveshaft axis. The elongated drive shaft assembly further comprises a closure assembly that is axially movable in response to closure movements that are applied thereto. The closure assembly comprises a distal closure element segment and a proximal closure element segment movably interfaced with the distal closure element segment to accommodate pivoting of the surgical end actuator about the pivot axis. The proximal closure member segment is configured to move one of the anvil and elongated groove between the open and closed positions upon application of the closing motions to the closure assembly. The surgical stapling instrument further comprises a longitudinally movable trigger bar that extends across the pivot joint and is selectively movable axially from an initial position to an end position within the surgical end actuator. The longitudinally movable firing bar is configured to operatively engage the corresponding portion of an unfired surgical staple cartridge which is operatively supported in the elongated groove when the longitudinally movable firing bar is in the home position. The surgical stapling instrument further comprises a trigger bar locking assembly comprising a displacement member that is operatively supported on the distal closure member segment to urge the longitudinally movable trigger bar into a locked position, the trigger bar being longitudinally movable firing is prevented from moving from the initial position to the final position unless an unfired surgical staple cartridge is operatively supported in the elongated groove.

[00396] Example 51 - The surgical stapling instrument of Example 50, wherein the longitudinally movable firing bar has an inclined portion that is configured for engagement with the displacement element when the longitudinally movable firing bar is in the initial position.

[00397] Example 52 - The surgical stapling instrument of Example 50 or 51, wherein the unfired surgical staple cartridge comprises a plurality of surgical staples operatively supported within a cartridge body and a wedge slider that is axially movable through of the cartridge body to eject the surgical staples from the cartridge when the wedge slider is moved from an unfired position to a fired position within it. The wedge slider is configured for operable engagement with the longitudinally movable firing bar when the longitudinally movable firing bar is in the home position and the wedge slider is in the non-firing position.

[00398] Example 53 - The surgical stapling instrument of Example 52, in which the wedge slider is configured to prevent the trigger bar from entering a locked position when the wedge slider is in the non-triggered position and after applying a initial firing movement to the longitudinally movable firing bar.

[00399] Example 54 - A surgical stapling instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is operatively coupled to the elongated drive shaft assembly by a pivot joint such that the surgical end actuator is selectively pivotable with respect to the elongated drive shaft assembly about a pivot axis that is transverse to the geometric axis of the drive shaft. The surgical end actuator includes a cartridge support member that is configured to operatively support a cartridge of surgical staples therein. The surgical stapling instrument further comprises a longitudinally movable trigger bar that includes a portion that extends through the pivot joint and is selectively movable axially from an initial position to an end position within the surgical end actuator. The longitudinally movable firing bar is configured to operatively engage the corresponding portion of an unfired surgical staple cartridge which is operatively supported on the cartridge support member when the longitudinally movable firing bar is in the home position. The surgical stapling instrument further includes means for providing lateral support to the longitudinally movable portion of the trigger bar that extends through the pivot joint when the surgical end actuator is pivoted about the pivot axis. The supply means further comprises means for preventing the longitudinally movable firing bar from moving from the initial position to the final position unless an unfired surgical staple cartridge is operatively supported on the cartridge support member.

[00400] Example 55 - The surgical stapling instrument of Example 54, the means for providing lateral support further comprising a central support element that is movably attached to the cartridge support element and to the elongated drive shaft assembly . The central support member comprises a slot for movably receiving the longitudinally movable portion of the firing bar therethrough. The supply means comprises a displacement member which is supported on the central support member and is configured to apply a displacement movement to the longitudinally movable firing bar to move the longitudinally movable firing bar to a locked position, whereby the firing bar longitudinally movable firing pin is prevented from moving from the initial position to the final position unless the unfired surgical staple cartridge is operatively supported on the cartridge support member.

[00401] Example 56 - The surgical stapling instrument of Example 55, wherein the longitudinally movable trigger bar comprises a locking cam formed in the longitudinally movable portion of the trigger bar for engagement with the displacement element.

[00402] Example 57 - The surgical stapling instrument of Example 56, in which the displacement element comprises a flat body comprising a window located inside it, so that the locking cam projects into the window during articulation of the surgical end actuator.

[00403] Example 58 - The surgical stapling instrument of Example 54, 55, 55 or 57, wherein the unfired surgical staple cartridge comprises a plurality of surgical staples that are operatively supported within a cartridge body and a clip slider wedge that is axially movable through the body of the cartridge to eject the surgical staples from the cartridge when the wedge slider is moved from an unfired position to a fired position therein. The wedge slider is configured for operable engagement with the longitudinally movable firing bar when the longitudinally movable firing bar is in the home position and the wedge slider is in the non-firing position.

[00404] Example 59 - The surgical stapling instrument of Example 58, in which the wedge slider is configured to prevent the trigger bar from entering a locked position when the wedge slider is in the non-triggered position and after applying a initial firing movement to the longitudinally movable firing bar.

[00405] Example 60 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is operatively coupled to the elongated drive shaft assembly by a pivot joint such that the surgical end actuator is selectively pivotable with respect to the elongated drive shaft assembly about a pivot axis that is transverse to the geometric axis of the drive shaft. A longitudinally movable flexible trigger bar is configured to flexibly traverse the pivot joint and is selectively axially movable from an initial position to an end position within the surgical end actuator. A central support member is movably coupled to the elongated drive shaft assembly and a portion of the surgical end actuator. The central support member comprises a central body portion that includes a proximal end and a distal end. A trigger bar slot extends between that proximal end and the distal end and is configured to movably support each lateral side of a portion of the flexible trigger bar passing through the pivot joint. The surgical instrument further comprises a proximal support link which comprises an elongated proximal body which is situated proximal to the central support member and is configured to laterally support proximal lateral side portions of the flexible trigger bar which traverses the pivot joint. The proximal support link movably interfaces with the proximal end of the central support member. The surgical instrument further comprises a distal support link which comprises an elongated distal body which is situated distal to the central support member and is configured to laterally support corresponding distal lateral side portions of the flexible firing bar which traverses the knuckle joint. The distal support link movably interfaces with the distal end of the central support member.

[00406] Example 61 - The surgical instrument of Example 60, wherein the elongated proximal body of the proximal support link comprises a proximal top member and two opposing proximal support walls that extend downwards. One of the proximal support walls is located adjacent one of the proximal lateral side portions of the flexible firing bar that spans the hinged joint. The other of the opposing proximal support walls is adjacent to the other of the proximal lateral side portions of the flexible firing bar that spans the pivot joint. The elongated distal body of the distal support link comprises a distal top member and two downwardly extending opposing distal support walls. One of the distal support walls is located adjacent to one of the distal lateral side portions of the flexible firing rod which traverses the pivot joint. The other of the opposing distal support walls is adjacent to the other of the distal lateral side portions of the flexible firing bar which spans the pivot joint.

[00407] Example 62 - The surgical instrument of Example 61, one of the proximal support walls including a proximal arcuate surface that faces one of the proximal lateral side portions of the flexible firing bar that crosses the articulated joint, and being that the other of the proximal support walls include another proximal arcuate surface that faces the other of the proximal lateral side portions of the flexible firing rod that spans the pivot joint. One of the distal support walls includes a distal arcuate surface that faces one of the distal lateral side portions of the flexible firing rod that traverses the knuckle joint. The other of the distal support walls includes another distal arcuate surface that faces the other of the distal lateral side portions of the flexible firing rod that traverses the knuckle joint.

[00408] Example 63 - The surgical instrument of Example 61 or 62, in which the proximal end of the central support element comprises an arched proximal cavity that is configured to moveably receive in its interior a distal tip portion of the top member proximal to the proximal support link. The distal end of the central support member comprises a distal arcuate cavity which is configured to movably receive therein a proximal tip portion of the distal top member of the distal support link.

[00409] Example 64 - The surgical instrument of Example 60, 61, 62 or 63, in which the central support element is pivotally coupled to the portion of the surgical end actuator for pivotal displacement relative to it around an axis of pivot. The central support member is coupled to the elongated drive shaft assembly for pivotal and axial displacement relative thereto.

[00410] Example 65 - The surgical instrument of Example 64, in which the central support element is pinned to the elongated drive shaft assembly by a proximal pin that extends through an elongated slot in the central support element.

[00411] Example 66 - The surgical instrument of Example 60, 61, 62, 63, 64 or 65, wherein the elongated drive shaft assembly comprises a distal central column comprising a distal central column cavity that is configured to receive movably therein a proximal tip portion of the proximal top member.

[00412] Example 67 - The surgical instrument of Example 60, 61, 62, 63, 64, 65 or 66, in which the portion of the surgical end actuator comprises a channel cavity that is configured to moveably receive inside it a distal tip portion of the distal top member.

[00413] Example 68 - The surgical instrument of Example 60, 61, 62, 63, 64, 65, 66 or 67, wherein the portion of the surgical end actuator comprises an elongated channel that is configured to operatively support within it a surgical staple cartridge.

[00414] Example 69 - The surgical instrument of Example 68 further comprising an anvil supported in relation to the elongated channel so that one of the anvil and the elongated channel is selectively movable in relation to the other of the anvil and the elongated channel, between open and closed positions.

[00415] Example 70 - A surgical instrument comprising an elongated drive shaft assembly defining a geometric axis of the drive shaft and comprising right and left opposing drive shaft notches that are formed at a distal end thereof. A surgical end actuator is operatively coupled to the elongated drive shaft assembly by a pivot joint such that the surgical end actuator is selectively pivotable with respect to the elongated drive shaft assembly about a pivot axis that is transverse to the geometric axis of the drive shaft. A longitudinally movable flexible trigger bar is configured to flexibly traverse the pivot joint and is selectively axially movable from an initial position to an end position within the surgical end actuator. A central support member is movably coupled to the elongated drive shaft assembly and a portion of the surgical end actuator. The central support member comprises a central body portion that includes opposing right and left support notches that are formed at a distal end thereof, and a firing bar slot that is configured to movably support lateral side portions of the longitudinally movable flexible firing bar that passes through the articulated joint. A pivot link is configured to laterally support lateral portions of the longitudinally movable flexible firing bar that traverse the pivot joint. The pivot link comprises a proximally projecting proximal tip portion that is configured to movably engage either of the right and left opposing drive shaft notches when the longitudinally movable flexible trigger bar flexes in response to articulation of the pivot actuator. surgical end around the axis of articulation. A distally projecting distal tip portion is configured to movably engage either of the opposing right and left support notches on the movable support member when the longitudinally movable flexible trigger bar flexes in response to articulation of the surgical end actuator in around the pivot axis.

[00416] Example 71 - The surgical instrument of Example 70, wherein the pivot link additionally comprises a first lateral support wall that is adjacent to one of the lateral side portions of the longitudinally movable flexible trigger bar and a second support wall side which is adjacent to the other of the lateral side portions of the longitudinally movable flexible firing bar.

[00417] Example 72 - The surgical instrument of Example 71, wherein the first lateral support wall includes a first arched surface that faces one of the lateral side portions of the longitudinally movable flexible trigger bar and wherein the second wall of side support includes a second arcuate surface that faces the other of the lateral side portions of the longitudinally movable flexible firing bar.

[00418] Example 73 - The surgical instrument of Example 71 or 72 further comprising a first compression band extending between a lateral side portion of the longitudinally movable flexible trigger bar and the first lateral support wall. The first compression band comprises a first distal end that is supported on the surgical end actuator and a first proximal end that is movably supported on the elongated drive shaft assembly. The second compression band extends between the other lateral side portion of the longitudinally movable flexible firing bar and the second lateral support wall. The second compression band comprises a second distal end that is supported on the surgical end actuator and the second proximal end that is movably supported on the elongated drive shaft assembly.

[00419] Example 74 - The surgical instrument of Example 73 further comprising a third compression band extending between a lateral side portion of the longitudinally movable flexible trigger bar and the first compression band. The third compression band comprises a third distal end that is supported on the surgical end actuator and a third proximal end that is movably supported on the elongated drive shaft assembly. The fourth compression band extends between the other lateral side portion of the longitudinally movable flexible firing bar and the second compression band. The fourth compression band comprises a fourth distal end that is supported on the surgical end actuator and a fourth proximal end that is movably supported on the elongated drive shaft assembly.

[00420] Example 75 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is operatively coupled to the elongated drive shaft assembly by a pivot joint such that the surgical end actuator is selectively pivotable with respect to the elongated drive shaft assembly about a pivot axis that is transverse to the geometric axis of the drive shaft. A longitudinally movable flexible trigger bar is configured to flexibly traverse the pivot joint and is selectively axially movable from an initial position to an end position within the surgical end actuator. A central support member is movably coupled to the elongated drive shaft assembly for axial and pivotal displacement relative thereto and is pivotally coupled to the surgical end actuator. The surgical instrument further comprises a U-shaped proximal support link comprising a proximal top member and two proximal side members. The U-shaped proximal support link extends over a proximal portion of the longitudinally movable flexible trigger bar such that one of the proximal side members is adjacent to a lateral side of the proximal portion of the longitudinally movable flexible trigger bar. and the other one of the proximal side members is adjacent to the other lateral side of the proximal portion of the longitudinally movable flexible firing bar. The proximal top member movably interfaces with the central support member. The surgical instrument further comprises a U-shaped distal support link comprising a distal top member and two distal side members. The U-shaped distal support link extends over a distal portion of the longitudinally movable flexible trigger bar such that one of the distal side members is adjacent to a lateral side of the distal portion of the longitudinally movable flexible trigger bar. and the other one of the distal side members is adjacent to the other lateral side of the distal portion of the longitudinally movable flexible firing bar. The distal top member movably interfaces with the central support member.

[00421] Example 76 - The surgical instrument of Example 75, wherein the proximal top member movably interfaces with the elongated drive shaft assembly, and wherein the distal top member movably interfaces with a portion of the surgical end actuator.

[00422] Example 77 - The surgical instrument of Example 75 or 76, the proximal top member comprising a first proximally projecting tip portion movably extending into a distal cavity formed in the drive shaft assembly elongate, and a distally projecting first distal tip portion movably extending into a proximal cavity in the central support member. The distal top member comprises a second proximally projecting proximal tip portion movably extending into a distal cavity in the central support member, and a distally projecting second distal tip portion movably extending into a distal end member. a channel cavity in the surgical end actuator.

[00423] Example 78 - The surgical instrument of Example 75, 76 or 77, one of the two proximal side members comprising a proximal arcuate surface facing a lateral side of the proximal portion of the longitudinally movable flexible trigger bar. The other one of the proximal side members includes another proximal arcuate surface that faces the other lateral side of the proximal portion of the longitudinally movable flexible trigger bar. One of the distal side members comprises a distal arcuate surface which faces a lateral side of the distal portion of the longitudinally movable flexible firing bar. The other one of the distal side members comprises another distal arcuate surface which faces the other distal side of the distal portion of the longitudinally movable flexible trigger bar.

[00424] Example 79 - The surgical instrument of Example 75, 76, 77 or 78, in which the central support element is movably coupled to an elongated channel of the surgical end actuator that is configured to operationally support a cartridge inside of surgical staples.

[00425] Example 80 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is operatively coupled to the elongated drive shaft assembly by a pivot joint such that the surgical end actuator is selectively pivotable with respect to the elongated drive shaft assembly about a pivot axis that is transverse to the geometric axis of the drive shaft. A central trigger bar support member extends through the pivot joint and comprises a distal end that is coupled to the surgical end actuator and a proximal end that is attached to the elongated drive shaft assembly. A set of longitudinally movable flexible trigger bars are configured to flexibly traverse the pivot joint and are selectively movable axially from an initial position to an end position within the surgical end actuator. The set of longitudinally movable flexible firing rods comprises a plurality of layers of rods which are supported relative to each other such that at least one of the layers of rods is configured to pass movably on a lateral side of the central support member. of the firing bar and at least the other of the layers of bars is configured to pass movably on the other lateral side of the central support element of the firing bar. A plurality of lateral load-bearing members correspond to the central support of the firing bar and are supported on portions of at least one of the layers of bars that are configured to move movably on a lateral side of the central support member of the bar. and the at least one other of the layers of bars which are configured to pass movably on the other lateral side of the central support element of the firing bar.

[00426] Example 81 - The surgical instrument of Example 80, wherein at least one of the layers of bars that is configured to pass movably on a lateral side of the central support element of the firing bar comprises two of the layers of bars, and wherein the at least one other of the layers of bars which is configured to pass on the other lateral side of the central support member of the firing bar comprises two of the other layers of bars.

[00427] Example 82 - The surgical instrument of Example 80 or 81, in which the lateral load-bearing members are movable relative to each other.

[00428] Example 83 - The surgical instrument of Example 80, 81 or 82, each of the lateral load-bearing members comprising an axial passage to movably receive the portions of at least one of the layers of bars that are configured to pass movably on the lateral side of the central support member of the firing bar, and the at least one other of the layers of bars which are configured to pass movably on the other side of the central support member of the firing bar .

[00429] Example 84 - The surgical instrument of Example 80, 81, 82 or 83, in which a portion of the surgical end actuator that is coupled to the elongated drive shaft assembly by the articulated joint comprises an elongated channel that is configured to support operationally inside a cartridge of surgical staples.

[00430] Example 85 - The surgical instrument of Example 84 further comprising an anvil that is supported in relation to the elongated groove so that one of the anvil and the elongated groove is selectively movable in relation to the other of the anvil and the elongated groove , between open and closed positions.

[00431] Example 86 - The surgical instrument of Example 80, 81, 82, 83, 84 or 85, with the distal end of the central support element of the trigger bar protruding below a bottom surface of the set of trigger bars longitudinally movable flexible trigger bars for attachment to the surgical end actuator, and the proximal end of the trigger bar central support member projects above an upper surface of the longitudinally movable flexible trigger bar assembly for attachment to the trigger shaft assembly. elongated drive.

[00432] Example 87 - The surgical instrument of Example 86, in which the distal end of the central support element of the trigger bar is pinned to an elongated channel of the surgical end actuator, and in which the proximal end of the trigger element center support of the trigger bar is pinned to a center column portion of the elongated driveshaft assembly.

[00433] Example 88 - The surgical instrument of Example 80, 81, 82, 83, 84, 85, 86 or 87, at least two of the plurality of lateral load bearing members each include end surfaces arched and are disposed over the portions of at least one of the layers of bars which are configured to pass movably on the lateral side of the central support element of the firing bar and at least the other of the layers of bars which are configured to moveably pass on the other lateral side of the central support member of the firing bar, such that one of the arcuate end surfaces on one of the at least two side load-bearing members is adjacent to the other of the arcuate end surfaces on the other of the at least two lateral load-bearing members.

[00434] Example 89 - The surgical instrument of Example 83, each axial passage comprising a pair of spaced internal arcuate surfaces that are configured to facilitate the pivotal movement of each of the lateral load-bearing members of the longitudinally flexible trigger bar mobile.

[00435] Example 90 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is operatively coupled to the elongated drive shaft assembly by a pivot joint such that the surgical end actuator is selectively pivotable with respect to the elongated drive shaft assembly about a pivot axis that is transverse to the geometric axis of the drive shaft. A central support member of the trigger bar is axially aligned along the axis of the drive shaft and extends through the articulated joint. The central support member of the trigger bar comprises a distal end that is coupled to the surgical end actuator and a proximal end that is attached to the elongated drive shaft assembly. The surgical instrument further comprises a set of longitudinally movable flexible trigger bars comprising a plurality of layers of bars that are configured to axially pass the central support member of the trigger bar so that at least one of the layers of bars passes each lateral side of the central support element of the firing bar when the set of longitudinally movable flexible firing bars crosses the articulated joint. Means are movably supported from the longitudinally movable flexible trigger bar for laterally supporting a portion of the longitudinally movable flexible trigger bar that traverses the pivot joint when the surgical end actuator is pivoted about the pivot axis.

[00436] Example 91 - The surgical instrument of Example 90, in which the distal end of the central support element of the firing bar protrudes below a bottom surface of the set of longitudinally movable flexible firing bars to be fixed to the actuator of surgical end. The proximal end of the firing rod central support member projects above an upper surface of the longitudinally movable flexible firing rod assembly for attachment to the elongated drive shaft assembly.

[00437] Example 92 - The surgical instrument of Example 90 or 91, in which a portion of the surgical end actuator that is coupled to the elongated drive shaft assembly by the articulated joint comprises an elongated channel that is configured to operationally support in its interior a cartridge of surgical staples.

[00438] Example 93 - The surgical instrument of Example 92 further comprising an anvil that is supported in relation to the elongated groove so that one of the anvil and the elongated groove is selectively movable in relation to the other of the anvil and the elongated groove , between open and closed positions.

[00439] Example 94 - The surgical instrument of Example 90, 91, 92 or 93 further comprising a trigger member attached to a distal end of the set of longitudinally movable flexible trigger bars.

[00440] Example 95 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is operatively coupled to the elongated drive shaft assembly by a pivot joint such that the surgical end actuator is selectively pivotable with respect to the elongated drive shaft assembly about a pivot axis that is transverse to the geometric axis of the drive shaft. A central support member of the trigger bar is axially aligned along the axis of the drive shaft and extends through the articulated joint. The central support member of the trigger bar comprises a distal end that is coupled to the surgical end actuator and a proximal end that is attached to the elongated drive shaft assembly. The surgical instrument further comprises a set of longitudinally movable flexible firing bars comprising a plurality of layers of bars such that when the set of longitudinally movable flexible firing bars is advanced distally, the set of longitudinally movable flexible firing bars is advanced. bifurcated by the firing bar center support member so that portions of the longitudinally movable flexible firing bar assembly pass in adjacent position to each lateral side of the firing bar center support member

[00441] Example 96 - The surgical instrument of Example 95 further comprising means that are movably supported on the set of longitudinally movable flexible firing bars to laterally support a portion of the set of longitudinally movable flexible firing bars that crosses the articulated joint when the surgical end actuator is pivoted about the pivot axis.

[00442] Example 97 - The surgical instrument of Example 95, wherein the laterally supporting means comprises a plurality of laterally load bearing members that are supported on the set of longitudinally movable flexible firing bars. Each of the lateral load-bearing members is independently movable within the array of longitudinally movable flexible firing bars.

[00443] Example 98 - The surgical instrument of Example 95, 96 or 97, in which the distal end of the central support element of the firing bar protrudes below a bottom surface of the set of longitudinally movable flexible firing bars to be attached to the surgical end actuator, and the proximal end of the firing bar central support member projects above an upper surface of the longitudinally movable flexible firing rod assembly for attachment to the elongated drive shaft assembly.

[00444] Example 99 - The surgical instrument of Example 97, each of the lateral load-bearing members including an axial passage therethrough comprising a pair of spaced internal arcuate surfaces to facilitate pivotal movement of each support member side loading on the set of longitudinally movable flexible firing bars.

[00445] Example 100 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is pivotally coupled to the elongated driveshaft assembly for selective pivoting of the elongated driveshaft assembly about a pivot axis that is transverse to the driveshaft axis. The surgical instrument further comprises a pivot system comprising a first distal pivot driver that is supported for selective longitudinal displacement in a distal direction and a proximal direction in response to corresponding pivot movements applied thereto. The first distal hinge driver is operatively coupled to the surgical end actuator. The articulation system further comprises a second distal articulation driver which is supported for longitudinal displacement in the distal and proximal directions. The second distal hinge driver is operatively coupled to the surgical end actuator. At least one pinion gear is in meshed engagement with the first distal pivot driver and the second distal pivot driver such that when the first distal pivot driver is moved in the distal direction, the at least one pinion gear is configured for driving the second distal pivot driver in the proximal direction for pivoting the surgical end actuator about the pivot axis in a first pivot direction, and when the first distal pivot driver is moved in the proximal direction, the at least one gear The pinion drive drives the second distal pivot driver in the distal direction to pivot the surgical end actuator about the pivot axis in a second pivot direction that is opposite to the first pivot direction.

[00446] Example 101 - The surgical instrument of Example 100, in which the first distal articulation driver is pivotally coupled to the surgical end actuator and, in which the second distal articulation driver is pivotally attached to the end actuator surgical.

[00447] Example 102 - The surgical instrument of Example 100 or 101, in which the first distal articulation driver is attached to the surgical end actuator by a first movable coupler, and in which the second distal articulation driver is attached to the surgical end by a second movable coupler.

[00448] Example 103 - The surgical instrument of Example 102, in which the first movable coupler is attached to the first distal articulation driver by a first spherical joint and, in which the second distal articulation driver is attached to the second mobile coupler by a second spherical joint.

[00449] Example 104 - The surgical instrument of Example 100, 101, 102 or 103 further comprising means for selectively locking the surgical end actuator in a plurality of pivotal positions relative to the elongated drive shaft assembly.

[00450] Example 105 - The surgical instrument of Example 104, wherein the selective locking means comprises a means for selectively preventing the distal joint driver from moving longitudinally in the proximal and distal directions.

[00451] Example 106 - The surgical instrument of Example 104 or 105 further comprising a proximal articulation driver that operationally interfaces with a source of proximal and distal articulation movements. The proximal pivot driver operationally interfaces with the selective constraint means to selectively unlock the selective constraint means and cause the selective constraint means to apply proximal and distal pivot motions to the first distal pivot driver.

[00452] Example 107 - The surgical instrument of Example 100, 101, 102, 103, 104, 105 or 106, wherein a portion of the surgical end actuator that is pivotally coupled to the elongated drive shaft assembly comprises a groove elongated body that is configured to operatively support a cartridge of surgical staples therein.

[00453] Example 108 - The surgical stapling instrument of Example 107 further comprising an anvil that is supported in relation to the elongated groove so that one of the anvil and the elongate groove is selectively movable with respect to the other of the anvil and the elongated channel, between the open and closed positions.

[00454] Example 109 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is pivotally coupled to the elongated driveshaft assembly for selective pivoting of the elongated driveshaft assembly about a pivot axis that is transverse to the driveshaft axis. The surgical instrument further comprises a pivot system comprising a first distal pivot driver that is supported for selective longitudinal displacement in a distal direction and in a proximal direction in response to corresponding pivot movements applied thereto. The first distal hinge driver is operatively coupled to the surgical end actuator. The linkage system further comprises a second distal linkage driver comprising an endless element that operationally interfaces with the first distal linkage driver and the surgical end actuator. The endless element is supported on the elongated drive shaft assembly for selective rotational displacement in response to a longitudinal displacement of the first distal linkage driver such that when the first distal linkage driver is moved in the distal direction, the endless element causes the surgical end actuator to pivot about the pivot axis in a first pivot direction, and when the first distal pivot driver is moved in the proximal direction, the worm element causes the surgical end actuator to pivot in a first pivot direction. about the pivot axis in a second pivot direction that is opposite to the first pivot direction.

[00455] Example 110 - The surgical instrument of Example 109, in which the endless element is pivotally supported on a proximal pulley mounted on the elongated drive shaft assembly and a distal pulley on the surgical end actuator.

[00456] Example 111 - The surgical instrument of Example 110, in which the endless element is operationally attached to the distal pulley by a fixation pin fixed to the endless element and configured to be received in a fixation opening in the distal pulley.

[00457] Example 112 - The surgical instrument of Example 109, 110 or 111, wherein the endless element comprises a length of wire that includes a first pin attached to a first end of the wire and a second pin attached to a second end of the wire. The second pin is also attached to the first pin to form the endless element.

[00458] Example 113 - The surgical instrument of Example 112, in which the distal articulation driver comprises a first and a second receptacle to receive the first and second pins inside it.

[00459] Example 114 - The surgical instrument of Example 110 or 111, in which the distal pulley is formed in an elongated channel of the surgical end actuator. The elongated groove is configured to operatively support a surgical staple cartridge therein.

[00460] Example 115 - The surgical instrument of Example 110 or 111, in which the distal pulley is formed in an end actuator mounting assembly that is attached to an elongated channel portion of the surgical end actuator. The elongated groove is configured to operatively support a surgical staple cartridge therein.

[00461] Example 116 - The surgical instrument of Example 114 or 115 further comprising an anvil supported in relation to the elongated groove so that one of the anvil and the elongated groove is selectively movable in relation to the other of the anvil and the elongated groove , between open and closed positions.

[00462] Example 117 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is pivotally coupled to the elongated driveshaft assembly for selective pivoting of the elongated driveshaft assembly about a pivot axis that is transverse to the driveshaft axis. The surgical instrument further comprises a pivot system comprising a first distal pivot driver that is supported for selective longitudinal displacement in a distal direction and in a proximal direction in response to corresponding pivot movements applied thereto. The first distal hinge driver is operatively coupled to the surgical end actuator. The articulation system further comprises a second distal articulation driver which is supported for longitudinal displacement in the distal and proximal directions. The second distal hinge driver is operatively coupled to the surgical end actuator. The pivot system further comprises a drive means that interfaces the first distal pivot driver and the second distal pivot driver such that when the first distal pivot driver is moved in the distal direction, the drive means actuates the pivot. second distal pivot driver in the proximal direction for pivoting the surgical end actuator about the pivot axis in a first pivot direction, and when the first distal pivot driver is moved in the proximal direction, the driving means drives the second driver distal pivot direction to pivot the surgical end actuator about the pivot axis in a second pivot direction that is opposite to the first pivot direction.

[00463] Example 118 - The surgical instrument of Example 117, in which the surgical end actuator comprises an elongated channel that is configured to operatively support a cartridge of surgical staples inside it. An anvil is supported relative to the elongated groove such that one of the anvil and the elongated groove is selectively movable relative to the other of the anvil and the elongated groove between the open and closed positions.

[00464] Example 119 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is pivotally coupled to the elongated driveshaft assembly for selective pivoting of the elongated driveshaft assembly about a pivot axis that is transverse to the driveshaft axis. The surgical instrument further comprises a pivot system comprising a pivotable pivot member that is supported for rotational displacement about an axis of rotation that is transverse to the axis of the drive shaft. A first distal hinge driver assembly operatively interfaces with the pivot pivot member and is supported for selective longitudinal displacement in a distal direction and in a proximal direction in response to corresponding pivot motions applied thereto by the pivot pivot member. The first distal joint driver assembly operationally interfaces with the surgical tip actuator. A second distal linkage driver assembly operatively interfaces with the pivoting linkage member and is supported for longitudinal displacement in the distal and proximal directions. The second distal joint driver assembly operationally interfaces with the surgical tip actuator. The pivot system further comprises means for selectively rotating the pivotal pivot member in a first and a second direction of rotation about the axis of rotation so that when the pivotal pivot member is pivoted in a first direction of rotation by the means of selective pivoting, the first distal pivot driver assembly is driven longitudinally in the distal direction and the second distal pivot driver is simultaneously moved in the proximal direction to pivot the surgical end actuator about the pivot axis in a first pivot direction , and when the pivoting pivot member is rotated in a second direction of rotation by the selective pivoting means, the first distal pivotal driver assembly is driven longitudinally in the proximal direction and the second distal pivotal driver assembly is simultaneously moved in the distal direction to pivot the surgical end actuator around that of the pivot axis in a second pivot direction about the pivot axis that is opposite to the first pivot direction.

[00465] Example 120 - The surgical instrument of Example 119, wherein the pivoting pivot member comprises a pivoting pivoting disk, and wherein the first distal pivoting driver assembly comprises a first pivoting driver portion that is supported so movable within a first pivot slot in the pivotable pivot disk, and wherein the second distal pivot driver assembly comprises a second pivot driver portion movably supported within a second pivot slot in the pivotable pivot disk.

[00466] Example 121 - The surgical instrument of Example 119 or 120 further comprising a first displacement member that interacts with the first pivot driver portion to flex the first distal pivot driver assembly into a first neutral pivot position when the selective turning means is not actuated. A second displacement element interacts with the second pivotal driver portion to flex the second distal pivotal driver assembly into a second neutral pivotal position when the selective pivoting means is not actuated.

[00467] Example 122 - The surgical instrument of Example 119, 120 or 121, wherein the first distal articulation driver assembly comprises a first articulation link that movably interfaces with the pivotal articulation member. A first pivotal connector is pivotally coupled to the first pivot link. The first pivot connector operationally interfaces with said surgical end actuator. The second distal pivotal actuator assembly comprises a second pivotal link movably interfacing with the rotatable pivotal member, and a second pivotal member pivotally coupled to the second pivotal link and operatively interfacing with the pivotal actuator. surgical end.

[00468] Example 123 - The surgical instrument of Example 122, wherein the first distal joint actuator assembly further comprises a joint lock assembly that makes an operational interface with the first joint connector and the surgical end actuator and is configured to selectively lock the surgical end actuator in a plurality of pivotal positions relative to the elongated drive shaft assembly.

[00469] Example 124 - The surgical instrument of Example 123 further comprising a first pivot member that makes an operational interface with the pivot lock assembly and the surgical end actuator.

[00470] Example 125 - The surgical instrument of Example 124, wherein the first pivot member is coupled to the surgical end actuator by a first movable coupler, and wherein the second pivot member is coupled to the surgical end actuator by a second movable coupler.

[00471] Example 126 - The surgical instrument of Example 126, in which the first articulation member is coupled to the first movable coupler by a first spherical joint, and in which the second articulation member is coupled to the second movable coupler by a second joint spherical.

[00472] Example 127 - The surgical instrument of Example 119, 120, 121, 122, 123, 124, 125 or 126, in which the means of selective rotation comprises a motor in engaged engagement with the pivotal pivot member.

[00473] Example 128 - The surgical instrument of Example 119, 120, 121, 122, 123, 124, 125 or 126 further comprising a longitudinally movable firing member, and the selective turning means comprising a motor that is configured for generating pivotal output motions and a keying arrangement that interfaces operationally with the motor and the longitudinally movable firing member, and a pivot drive link that is in operable engagement with the pivotal pivot member. The keying arrangement is configured to move between a first position in which actuation of the motor results in applications of axial linkage motions to the linkage drive link to thereby cause the pivotal linkage member to rotate about the pivot point. axis of rotation, and a second position in which actuation of the motor results in application of axial firing motions to the longitudinally movable firing member.

[00474] Example 129 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is pivotally coupled to the elongated driveshaft assembly for selective pivoting of the elongated driveshaft assembly about a pivot axis that is transverse to the driveshaft axis. The surgical instrument further comprises a pivot system comprising a rotational drive member that is supported for rotational displacement about an axis of rotation that is transverse to the axis of the drive shaft. A rotationally driven member is supported for rotational displacement relative to the rotational driving member about the axis of rotation. The rotationally driven member operationally interfaces with the rotatable drive member such that applying pivot control movements to the rotational drive member causes the rotational drive member to rotate about the axis of rotation. A first distal joint driver assembly operationally interfaces with the at least rotationally driven member and is supported for selective longitudinal displacement in a distal direction and a proximal direction in response to rotation of the at least first rotationally driven member. The first distal joint driver assembly operationally interfaces with the surgical tip actuator. The articulation system further comprises a second distal articulation driver assembly which operationally interfaces with at least the rotationally driven member and is supported for longitudinal displacement in the distal and proximal directions. The second distal joint driver assembly operationally interfaces with the surgical tip actuator. The pivot system further comprises a means for selectively applying pivot control movements to the rotational drive member to cause the rotational drive member to rotate about the axis of rotation and to thereby cause the rotationally driven member to rotate. rotates about the axis of rotation such that, when the rotationally driven member rotates in a first direction of rotation, the first distal joint driver assembly is driven longitudinally in the distal direction and the second distal joint driver is simultaneously moved in the direction proximal to pivot the surgical end actuator about the pivot axis in a first pivot direction, and when the rotation driven member is rotated in a second rotation direction, the first distal pivot drive assembly is driven longitudinally in the proximal direction and the second distal joint driver assembly is simultaneously moved in the distal direction to pivot the surgical end actuator about the pivot axis in a second pivot direction about the pivot axis that is opposite to the first pivot direction.

[00475] Example 130 - The surgical instrument of Example 129, wherein the rotational actuating member comprises a rotary actuating articulation disk and wherein the second rotationally actuated member comprises a rotationally actuated articulation disc, and wherein the first set The distal pivot drive comprises a first pivot drive portion that is movably supported within corresponding first pivot slots in each of the rotatable drive pivot disk and the rotationally driven pivot disk, and wherein the second set The distal pivot drive comprises a second pivot drive portion movably supported within corresponding second pivot slots in each of the rotatable drive pivot disk and the rotationally driven pivot disk.

[00476] Example 131 - The surgical instrument of Example 129 or 130, wherein the first distal joint driver assembly comprises a first pivot link that movably interfaces with the rotational driver member and the member driven by rotation, and a first pivot member which is pivotally coupled to the first pivot link. The first articulation member operationally interfaces with the surgical end actuator. The second distal pivotal drive assembly comprises a second pivotal link movably interfaced with the rotatable drive member and the rotationally driven member, and a second pivotal member is pivotally coupled to the second pivot link and makes operating interface with the surgical tip actuator.

[00477] Example 132 - The surgical instrument of Example 131, wherein the first pivot member is coupled to the surgical end actuator by a first movable coupler and the second pivot member is coupled to the surgical end actuator by a second movable coupler .

[00478] Example 133 - The surgical instrument of Example 132, in which the first articulation member is coupled to the first movable coupler by a first spherical joint, and in which the second articulation member is coupled to the second movable coupler by a second joint spherical.

[00479] Example 134 - The surgical instrument of Example 129, 130, 131, 132 or 133, with the means of selective application comprising a motor in engagement geared with the rotational driving member.

[00480] Example 135 - The surgical instrument of Example 129, 130, 131, 132 or 133 further comprising a longitudinally movable firing member, and the selective application means comprising a motor that is configured to generate rotary output movements . The selective application means further comprises a keying arrangement that interfaces operationally with the motor and the longitudinally movable firing member, and a pivotal drive link that is in operable engagement with the rotational driving member. The keying arrangement is configured to move between a first position in which actuation of the motor results in application of axial linkage motions to the linkage drive link to thereby cause the rotational drive member to rotate about the axis. of rotation, and a second position in which actuation of the motor results in applications of axial firing motions to the longitudinally movable firing member.

[00481] Example 136 - A surgical instrument comprising an elongated drive shaft assembly that defines a drive shaft geometric axis. A surgical end actuator is pivotally coupled to the elongated driveshaft assembly for selective pivoting of the elongated driveshaft assembly about a pivot axis that is transverse to the driveshaft axis. The surgical instrument further comprises a pivot system comprising means that is operatively coupled to the surgical end actuator for pivoting the surgical end actuator about the pivot axis and means for selectively generating pivotal motions. The pivot system further comprises a swivel member which operatively interfaces the swivel motion generating means and the pivot means so that application of the swivel motions by the selective generating means to the swivel member causes the pivot means to simultaneously apply opposing axial pivot movements to the surgical end actuator, one of the opposing axial movements being applied to an attachment point on the surgical end actuator that is laterally displaced to a lateral side of the pivot axis, and the other being Opposite axial motion is applied to another attachment point on the surgical end actuator which is laterally displaced on the other lateral side of the pivot shaft.

[00482] The totality of the disclosures of:

[00483] US Patent No. 5,403,312, entitled "ELECTROSURGICAL HEMOSTATIC DEVICE", issued on April 4, 1995;

[00484] US Patent No. 7,000,818, entitled "SURGICAL STAPLING INSTRUMENT HAVING SEPARATE DISTINCT CLOSING AND FIRING SYSTEMS", granted on February 21, 2006;

[00485] US Patent No. 7,422,139, entitled "MOTOR-DRIVEN SURGICAL CUTTING AND FASTENING INSTRUMENT WITH TACTILE POSITION FEEDBACK", granted on September 9, 2008;

[00486] US patent No. 7,464,849, entitled "ELECTROMECHANICAL SURGICAL INSTRUMENT WITH CLOSURE SYSTEM AND ANVIL ALIGNMENT COMPONENTS", granted on December 16, 2008;

[00487] US Patent No. 7,670,334, entitled "SURGICAL INSTRUMENT HAVING AN ARTICULATING END EFFECTOR", granted on March 2, 2010;

[00488] US Patent No. 7,753,245, entitled "SURGICAL STAPLING INSTRUMENTS", granted on July 13, 2010;

[00489] US Patent No. 8,393,514, entitled "SELECTIVELY ORIENTABLE IMPLANTABLE FASTENER CARTRIDGE", issued on March 12, 2013;

[00490] US Patent Application Serial No. 11/343,803, entitled "SURGICAL INSTRUMENT HAVING RECORDING CAPABILITIES", now US Patent No. 7,845,537;

[00491] US patent application serial number 12/031,573, entitled "SURGICAL CUTTING AND FASTENING INSTRUMENT HAVING RF ELECTRODES", filed on February 14, 2008;

[00492] patent application serial number US 12/031,873, entitled "END EFFECTORS FOR A SURGICAL CUTTING AND STAPLING INSTRUMENT", filed on February 15, 2008, now US patent number 7,980,443;

[00493] US Patent Application Serial No. 12/235,782 entitled "MOTOR-DRIVEN SURGICAL CUTTING INSTRUMENT", now US Patent 8,210,411;

[00494] US Patent Application Serial No. 12/249,117, entitled "POWERED SURGICAL CUTTING AND STAPLING APPARATUS WITH MANUALLY RETRACTABLE FIRING SYSTEM", now US Patent No. 8,608,045;

[00495] patent application serial number US 12/647,100, entitled "MOTOR-DRIVEN SURGICAL CUTTING INSTRUMENT WITH ELECTRIC ACTUATOR DIRECTIONAL CONTROL ASSEMBLY", filed on December 24, 2009, now US patent No. 8,220,688;

[00496] Patent Application Serial No. US 12/893,461, entitled "STAPLE CARTRIDGE", filed on September 29, 2012, now US Patent No. 8,733,613;

[00497] US Patent Application Serial No. 13/036,647, entitled "SURGICAL STAPLING INSTRUMENT", filed on February 28, 2011, now US Patent No. 8,561,870;

[00498] US Patent Application Serial No. 13/118,241 entitled "SURGICAL STAPLING INSTRUMENTS WITH ROTATABLE STAPLE DEPLOYMENT ARRANGEMENTS", now US Patent Application Publication No. 2012/0298719;

[00499] US Patent Application Serial No. 13/524,049, entitled "ARTICULATABLE SURGICAL INSTRUMENT COMPRISING A FIRING DRIVE", filed on June 15, 2012, now US Patent Application Publication No. 2013/0334278;

[00500] US Patent Application Serial No. 13/800,025 entitled "STAPLE CARTRIDGE TISSUE THICKNESS SENSOR SYSTEM", filed March 13, 2013, now US Patent Application Publication No. 2014/0263551;

[00501] US Patent Application Serial No. 13/800,067, entitled "STAPLE CARTRIDGE TISSUE THICKNESS SENSOR SYSTEM", filed on March 13, 2013, now published US Patent Application No. 2014/0263552;

[00502] patent application publication No. US 2007/0175955, entitled "SURGICAL CUTTING AND FASTENING INSTRUMENT WITH CLOSURE TRIGGER LOCKING MECHANISM", filed on January 31, 2006; and

[00503] US Patent Application Publication No. 2010/0264194, entitled "SURGICAL STAPLING INSTRUMENT WITH AN ARTICULATABLE END EFFECTOR", filed April 22, 2010, now US Patent No. 8,308,040, are incorporated herein by reference.

[00504] Although various embodiments of the devices have been described herein in connection with certain disclosed embodiments, many modifications and variations of these embodiments can be implemented. In addition, where materials are disclosed for certain components, other materials may be used. Furthermore, according to various embodiments, a single component can be replaced by multiple components and multiple components can be replaced by a single component to perform one or more specified functions. The aforementioned description and the following claims are intended to cover all such modifications and variations.

[00505] The devices disclosed herein can be designed to be discarded after a single use, or can be designed to be used multiple times. In either case, however, the device can be refurbished for reuse after at least one use. Reconditioning can include any combination of the steps of disassembling the device, followed by cleaning or replacing specific parts and subsequent reassembly. In particular, the device can be disassembled and any number of parts or specific parts of the device can be selectively replaced or removed, in any combination. By cleaning and/or replacing specific parts, the device can be reassembled for subsequent use in the refurbishment facility or by a surgical team immediately prior to a surgical procedure. Those skilled in the art will understand that reconditioning a device can use a variety of techniques to disassemble, clean/replace, and reassemble. The use of such techniques and the resulting refurbished device are within the scope of the present application.

[00506] As an example only, the aspects described here can be processed before surgery. First, a new or used instrument can be obtained and, if necessary, cleaned. The instrument can then be sterilized. In a sterilization technique, the instrument is placed in a closed, sealed container, such as a plastic bag or TYVEK. The container and instrument can then be placed in a field of radiation that can penetrate the container, such as gamma radiation, X-rays or high-energy electrons. Radiation can kill bacteria in the instrument and container. The sterilized instrument can then be stored in a sterile container. The sealed container can keep the instrument sterile until it is opened in the medical facility. The device may also be sterilized using any other known technique, including, but not limited to, beta or gamma radiation, ethylene oxide, plasma peroxide, or water vapor.

[00507] Although this invention has been described as having exemplary designs, the present invention can be further modified within the spirit and scope of the disclosure. It is therefore intended that this application cover any variations, uses or adaptations of the invention using its general principles.

[00508] Any patent, publication or other disclosure material, in whole or in part, which is deemed to be incorporated by reference to the present invention, is incorporated into the present invention only to the extent that the incorporated materials do not conflict with definitions , statements or other existing disclosure materials presented in this disclosure. Accordingly, and to the extent necessary, the disclosure as explicitly set forth herein supersedes any conflicting material incorporated into the present invention by reference. Any material, or portion thereof, incorporated herein by reference but which conflicts with existing definitions, statements, or other disclosure materials set forth herein, is incorporated herein only to the extent that there is no conflict between the material incorporated and the existing disclosure material.

Claims (15)

1. Surgical instrument, comprising: an elongated drive shaft assembly defining a drive shaft geometry (SA-SA); an end actuator mounting assembly (6390, 6490) movably coupled to the elongated drive shaft assembly for selective pivoting about a pivot axis that is transverse to the drive shaft axis; first and second jaws (6310 and 6360, 6410 and 6460) movably coupled to the end actuator mounting assembly such that each of the first and second jaws are movable with respect to each other and the axis of the drive shaft between a position open and a closed position; means for selectively applying a closing motion to the first and second jaws and an opening motion to the first and second jaws to selectively move the first and second jaws from the closed position to the open position, the means comprising an actuator closing sleeve axially movable end (6272, 6572) configured to engage portions of the first and second jaws when the end actuator closure sleeve is axially moved in a first direction; characterized in that the first and second jaws are movable with respect to each other and the geometric axis of the drive shaft between the open position and the closed position so that the application of the closing movement to the first and second jaws by the gripping sleeve End actuator closing causes one of the first and second jaws to move to the closed position at a closing rate that differs from another closing rate at which the other of the first and second jaws moves to the closed position. 2. Surgical instrument according to claim 1, characterized in that the first and second claws are movable in relation to each other and the geometric axis of the drive shaft around a common pivot axis (PA-PA) between the open position and the closed position, the first jaw comprising a first point (P1) and the second jaw comprising a second point (P2) wherein the first and second points are along a common axis which is perpendicular to the axis axis of the drive shaft, and the first point being a first distance from the axis of the drive shaft when the first gripper is in the open position, and the second point being a second distance from the axis of the drive shaft activation when the second claw is in the open position, and the second distance is different from the first distance; wherein the means for selectively applying the closing movement and the opening movement comprises means for urging the first and second claws towards each other to the open position. 3. Surgical instrument according to claim 2, characterized in that the end actuator mounting assembly comprises a pair of side sides (6391), each side side comprises a laterally projecting swivel pin (6394) defining the pivot shaft, and each of the first and second jaws is pivotally supported on each of the laterally projecting swivel pins. 4. Surgical instrument according to claim 2 or claim 3, characterized in that the means for forcing comprises a spring (6380) located between the first and second claws. 5. Surgical instrument according to any one of claims 2 to 4, characterized in that the end actuator closing sleeve (6272) is configured to simultaneously engage the portions of the first and second claws when the end actuator closing sleeve end actuator is axially moved in the first direction. 6. Surgical instrument according to any one of claims 2 to 5, characterized in that it further comprises an axially movable firing member (6340) supported for axial displacement between the first and second claws when the first and second claws are in position. closed position, optionally wherein the trigger member comprises a tissue cutting surface (6346). 7. Surgical instrument according to any one of claims 2 to 6, characterized in that the first claw comprises a cartridge of surgical staples (6320) and the second claw comprises an anvil (6362) and the second distance is greater than the first distance. 8. Surgical instrument according to claim 1, characterized in that it further comprises an axially movable firing member (6440) supported for axial displacement between the first and second jaws when the first and second jaws are in the closed position. 9. Surgical instrument according to claim 1 or claim 8, characterized in that it further comprises: a first cam slot (6504) in the end actuator mounting assembly, the first cam slot defining a first wedge closure portion (6505) and a first wedge opening portion (6507); and a second cam slot (6504) in the end actuator mounting assembly, the second cam slot defining a second closing wedge portion (6505) and a second opening wedge portion (6507), and wherein the first claw comprises a pair of first opening elements (6418) and a pair of first closing elements (6419), one of the first opening elements and one of the first closing elements being movably received inside the first slot cam and wherein another one of the first opening elements and another one of the first closing elements are received within the second cam slot and wherein the second claw comprises a pair of second opening elements (6474) and a pair of second closing elements (6476), one of the second opening elements and one of the second closing elements being movably received in the first cam slot and another of the second elements being The opening elements and another of the second closing elements are movably received within the second cam slot and the means for selectively applying the closing movement and the opening movement is configured to move the first and second claws in a first direction so as to cause one of the first closure elements and one of the second closure elements to moveably enter the first wedge closure portion and the other of the first closure elements and the other of the second closure elements to enter moveably on the second closing wedge portion to make the first and second claws move towards each other to the closed position, the means for selectively applying the closing movement and the opening movement being further configured to move the first and second jaws in a second direction so as to make one of the first opening elements and one of the second elements open of the opening elements move towards the first wedge opening portion and the other of the first opening elements and another of the second opening elements move towards the second wedge opening portion to cause the first and second claws to move away from each other the other for the open position, optionally wherein the first cam slot is formed in a first cam plate (6500) which is mated to the end actuator mounting assembly and the second cam slot is formed in a second plate (6500) that attaches to the end actuator mounting assembly. 10. Surgical instrument according to claim 9, characterized in that the end actuator closing sleeve comprises: a first opening tab (6575) corresponding to one of the first opening elements and one of the second opening elements for operational contact with it when the end actuator closing sleeve is moved in the second direction; and a second opening tab (6576) corresponding to the other of the first opening elements and the other of the second opening elements for operative contact therewith when the end actuator closing sleeve is moved in the second direction. 11. Surgical instrument according to any one of claims 1 to 5 and 8 to 10, characterized in that one of the first and second claws comprises an elongated channel (6312, 6412) which is configured to operatively support a cartridge of surgical clips (6320, 6420) therein and the other of the first and second jaws comprising an anvil (6362, 6462), optionally further comprising a trigger member (6340, 6440) which is supported for axial displacement between the first and second jaws when the first and second jaws are in the closed position. 12. Surgical instrument according to any one of claims 1, 8 or 9, characterized in that the end actuator closure sleeve includes at least two inwardly extending opening tabs (6576) that are configured to operatively engaging corresponding portions of at least one of the first and second jaws after applying the opening movements to the closing member to move at least one of the first and second jaws to the open position. 13. Surgical instrument according to claim 12, characterized in that at least one of the at least two inwardly extending opening flaps is integrally formed in the closing element. 14. Surgical instrument according to claim 12, characterized in that each of the at least two inwardly extending opening flaps is removablely attached to the closure element. 15. Surgical instrument according to any one of claims 12 to 14, characterized in that one of the first and second claws comprises an elongated channel (6412) that is configured to operatively support a cartridge of surgical staples (6420) therein and the other of the first and second claws comprising an anvil (6462).

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