JP6821653B2 - Surgical instruments with systems to ensure proper continuous movement of surgical instruments - Google Patents

Description

The present invention relates to surgical instruments, and in various embodiments, to surgical staple fastening and cutting instruments, and staple cartridges used with them.

Staple fasteners can include a pair of cooperating elongated jaw members, each jaw member being inserted into the patient and adapted to be positioned with respect to the tissue to be stapled and / or incised. it can. In various embodiments, one of the jaw members can support a staple cartridge containing at least two rows of laterally spaced staples, and the other jaw member is a staple in the staple cartridge. Anvils with stapled pockets aligned with the rows can be supported. In general, staple fasteners further include a push bar and knife blade that are slidable with respect to the jaw member, via a cam surface on the push bar and / or a cam surface on the wedge thread that is pushed by the push bar. , Staples can be continuously ejected from the staple cartridge. In at least one embodiment, the staples are held by the cartridge and held by the cartridge to push the staples against the anvil to form laterally isolated rows of deformed staples within the grasped tissue between the jaw members. The cam surface can be configured to activate a plurality of staple drivers associated with. In at least one embodiment, the knife blade can follow the cam surface and cut tissue along the lines between the staple rows.

The above discussion is intended only to explain various aspects of the art in the field of the invention at the time and should not be regarded as denying the claims.

The various features of the embodiments described herein, along with their advantages, can be understood by the following description in conjunction with the following accompanying drawings.
FIG. 3 is a perspective view of a surgical staple fastening device according to at least one embodiment. FIG. 5 is a perspective view of the surgical staple fastening device of FIG. 1 with its components removed for illustration purposes. It is an exploded perspective view of a surgical staple fastening instrument including a handle, a shaft, and an end effector according to at least one embodiment. FIG. 3 is a partial cross-sectional elevation view of the handle of FIG. 3 shown in an unclamped unlaunched configuration. FIG. 3 is a partial cross-sectional elevation view of the handle of FIG. 3 shown in a clamped unlaunched configuration. FIG. 3 is a partial cross-sectional elevation view of the handle of FIG. 3 shown in a clamped partial launch configuration. FIG. 3 is a partial cross-sectional elevation view of the handle of FIG. 3 shown in a clamped full launch configuration. FIG. 3 is a partial cross-sectional elevation view of the handle of FIG. 3 before being returned to the clamp release configuration. It is an elevational view of a surgical staple fastening instrument including a handle, a shaft, and an end effector according to at least one embodiment. 9 is an exploded perspective view of a staple cartridge for use with the surgical staple fastening device of FIG. It is a perspective view which shows the place where the staple cartridge of FIG. 10 is assembled to the surgical staple fastener of FIG. 9 is a cross-sectional view showing the staple cartridge of FIG. 10 positioned in the end effector of the surgical instrument of FIG. 9, showing the end effector in the clamp configuration. 9 is a cross-sectional view showing the staple cartridge of FIG. 10 positioned in the end effector of the surgical instrument of FIG. 9 showing the staple driver of the end effector being moved to the launch configuration by the launch system. 9 is a cross-sectional view showing a staple cartridge of FIG. 10 positioned within an end effector of a surgical instrument of FIG. 9 showing a staple driver operably disengaged from a launch system. 9 is a cross-sectional view showing a staple cartridge of FIG. 10 positioned within an end effector of a surgical instrument of FIG. 9 showing a cutting member being actuated by a firing system. It is an exploded view of the surgical staple fastening instrument according to at least one embodiment, which is shown with the components removed for purposes of illustration. FIG. 6 is a detailed view of the progress indicator of the surgical staple fastening device of FIG. FIG. 6 is a cross-sectional view of the end effector of a surgical staple fastener, shown in a clamped but unfired configuration. It is sectional drawing of the end effector of FIG. 18 shown in the staple firing mode. FIG. 8 is a cross-sectional view showing a shift between the staple firing mode and the tissue cutting mode of the end effector of FIG. It is sectional drawing of the end effector of FIG. 18 shown in the tissue cutting mode. It is an exploded view of the surgical staple fastening instrument according to at least one embodiment, which is shown with the components removed for purposes of illustration. FIG. 22 is a partial cross-sectional view of the surgical staple fastening device of FIG. 22 shown in an unclamped, unfired configuration. FIG. 22 is a detailed view of the transmission of the surgical staple fastening device of FIG. FIG. 22 is a partial cross-sectional view of the surgical staple fastening device of FIG. 22 shown in the clamp configuration prior to the firing stroke. FIG. 22 is a partial cross-sectional view of the surgical staple fastening device of FIG. 22 shown in the clamp configuration after the firing stroke. FIG. 22 is a partial cross-sectional view of the surgical staple fastening device of FIG. 22 shown in a clamped firing configuration prior to a transverse stroke. FIG. 22 is a partial cross-sectional view of the surgical staple fastening device of FIG. 22 shown in a clamped firing configuration after a transverse stroke. FIG. 22 is a perspective view of the transmission of the surgical staple fastening device of FIG. FIG. 28 is another perspective view of the transmission of FIG. 28. It is an exploded view of the surgical staple fastening instrument according to at least one embodiment, which is shown with the components removed for purposes of illustration. FIG. 29 is a partial cross-sectional view of the surgical staple fastening device of FIG. 29, shown in an unclamped, unfired configuration. FIG. 9 is a detailed view of the transmission of the surgical staple clamp of FIG. 29, shown in the configuration corresponding to the unclamped unfired configuration depicted in FIG. FIG. 29 is a partial cross-sectional view of the surgical staple fastening device of FIG. 29, shown in a clamped, unlaunched configuration. FIG. 9 is a detailed view of the transmission of the surgical staple fastening device of FIG. 29, shown in the configuration corresponding to the clamped unlaunched configuration depicted in FIG. 31. FIG. 29 is a partial cross-sectional view of the surgical staple fastening instrument of FIG. 29, showing a clamp configuration in which the staples are deployed from the surgical instrument. FIG. 2 is a detailed view of the transmission of the surgical staple clamp of FIG. 29, shown in a configuration corresponding to the clamped launch configuration depicted in FIG. FIG. 29 is a partial cross-sectional view of the surgical staple fastening device of FIG. 29, shown in a clamp configuration in which tissue is traversed by a surgical instrument. FIG. 9 is a detailed view of the transmission of the surgical staple clamp of FIG. 29, shown in the configuration corresponding to the clamped launch configuration depicted in FIG. 33. It is an exploded view of the surgical staple fastening instrument according to at least one embodiment, which is shown with the components removed for purposes of illustration. FIG. 34 is a partial cross-sectional view of the surgical staple fastening device of FIG. 34 in an unclamped, unfired configuration. FIG. 34 is a partial cross-sectional view of the surgical staple fastening device of FIG. 34 in a clamp configuration prior to the firing stroke. FIG. 34 is a partial cross-sectional view of the surgical staple fastening device of FIG. 34 in a clamped firing configuration prior to a transverse stroke. FIG. 34 is a partial cross-sectional view of the surgical staple fastening device of FIG. 34 in a clamped firing configuration after a transverse stroke. It is an exploded view of the surgical staple fastening instrument according to at least one embodiment, which is shown with the components removed for purposes of illustration. FIG. 9 is a partial cross-sectional view of the handle of the surgical staple fastening device of FIG. 39, shown in the unclamped configuration. FIG. 6 is a partial cross-sectional view of the handle of FIG. 40, shown in tissue staple fastening mode. It is a partial cross-sectional view of the handle of FIG. 40 shown in the launch configuration. It is a partial cross-sectional view of the handle of FIG. 40 which shows that the handle is switched between the tissue staple fastening operation mode and the tissue crossing operation mode. It is a partial cross-sectional view of the handle of FIG. 40 after a tissue crossing stroke. A portion of a surgical staple fastener according to at least one embodiment, comprising a staple firing bar, a knife bar, and a lock configured to hold the firing bar in place while the knife bar advances relative to the firing bar. It is a sectional view. The launch bar of FIG. 45 at the launch position and the lock located behind the staple launch bar are shown. The knife bar of FIG. 45 at the launch position is shown. Shown is the lock of FIG. 45, disengaged from the staple launch bar so that the launch bar can retract. FIG. 3 is a partial cross-sectional view of a surgical staple fastening device with a manually released lock according to at least one alternative embodiment. FIG. 3 is a partial cross-sectional view of a surgical staple fastening device according to at least one embodiment, shown in the unclamped configuration. FIG. 5 is a partial cross-sectional view of the surgical staple fastening instrument of FIG. 50 shown in clamp configuration. FIG. 5 is a partial cross-sectional view of the surgical staple fastening device of FIG. 50, shown in a staple firing configuration. FIG. 5 is a partial cross-sectional view of the surgical staple fastening instrument of FIG. 50, shown in a tissue cutting configuration. Of an end effector configured to continuously fire staples and incis the trapped tissue within the end effector, according to at least one embodiment, shown with the components removed for purposes of illustration. It is a partial perspective view. It is a partial perspective view of the end effector of FIG. 54 shown in the staple firing operation mode. It is a partial perspective view of the end effector of FIG. 54 shown in the tissue crossing operation mode. FIG. 3 is a partial cross-sectional perspective view of an end effector according to at least one embodiment. It is a partial cross-sectional perspective view of the end effector of FIG. 57 shown in the staple firing operation mode. It is a partial perspective view of the end effector of FIG. 57 shown in the tissue crossing operation mode. FIG. 3 is a partial cross-sectional view of a surgical staple fastening device according to at least one embodiment. FIG. 6 is a partial cross-sectional view of the surgical staple fastening device of FIG. 60, shown in staple firing mode. FIG. 6 is a partial cross-sectional view of the surgical staple fastening instrument of FIG. 60 transitioning between a staple firing motion mode and a tissue crossing motion mode. FIG. 6 is a partial cross-sectional view of the surgical staple fastening device of FIG. 60 in tissue crossing motion mode. FIG. 6 is a partial cross-sectional perspective view of a surgical staple fastener according to at least one embodiment, shown in a partially fired state. FIG. 64 is a partial cross-sectional elevation view of the surgical staple fastener of FIG. 64, shown in a partially fired state.

Throughout the drawings, the corresponding reference numerals indicate the corresponding parts. The illustrations described herein illustrate various embodiments of the invention in one form, and such illustrations should be construed as limiting the scope of the invention in any way. Absent.

The applicant of the present application owns the following patent applications filed on the same day as the present application, the entire contents of which are incorporated herein by reference:
-US Patent Application No. ___________, title of invention "SURGICAL INSTRUMENT COMPRISING SEPARATE TISSUE SECURING AND TISSUE CUTTING SYSTEMS", agent reference number END7668USNP / 150103,
-US Patent Application No. ___________, Invention Name "SURGICAL INSTRUMENT COMPRISING SYSTEMS FOR PERMITTING THE OPTIONAL TRANSECTION OF TISSUE", Agent Reference Number END7669USNP / _ U.S. Pat. SYSTEM FOR BYPASSING AN OPERATIONAL STEP OF THE SURGICAL INSTRUMENT ”, agent reference number END7670USNP / 150105.

Many specific details are provided to provide a complete understanding of the overall structure, function, manufacture, and use of embodiments described herein and shown in the accompanying drawings. Well-known behaviors, components, and elements are not described in detail so as not to obscure the embodiments described herein. It is understood by the reader that the embodiments described and illustrated herein are non-limiting examples, and therefore the particular structural and functional details disclosed herein are exemplary and exemplary. It will be understood to get. Modifications and changes to them can be made without departing from the claims.

The terms "comprise" (any form of comprise, such as "comprises" and "comprising"), "have" (any form of have, such as "has" and "having"), "include ( ”(Any word form of include, such as“ includes ”and“ inclusion ”), and“ contain ”(any word form of content, such as“ context ”and“ contouring ”) are open concatenations. It is a verb. As a result, a surgical system, device, or device that "includes", "has", "contains", or "contains" one or more elements is one or more of them. It has elements, but is not limited to having only one or more of them. Similarly, one or more of the elements of a system, device, or device that "equipped", "has", "contains", or "contains" one or more features. However, it is not limited to having only one or more of these characteristics.

The terms "proximal" and "distal" are used herein with reference to the clinician operating the handle portion of the surgical instrument. The term "proximal" refers to the part closest to the clinician and the term "distal" refers to the part located away from the clinician. For convenience and clarity, it is further understood that spatial terms such as "vertical", "horizontal", "top", and "bottom" can be used with respect to the drawings herein. Let's go. However, surgical instruments are used in many orientations and positions, and these terms are not intended to be limited and / or absolute.

Various exemplary devices and methods are provided for performing laparoscopic and minimally invasive surgical procedures. However, it is readily apparent to the reader that the various methods and devices disclosed herein can be used in many surgical procedures and applications, including those associated with, for example, open surgical procedures. Will be done. By reading "Forms for Carrying Out the Invention" herein, the reader can read that the various instruments disclosed herein are incised or punctured into tissue, eg, through a natural opening. You will further recognize that it can be inserted into the body in any way, such as through a hole. The working part or end effector part of these instruments can also be inserted directly into the patient's body, or through an access device with a passage of action capable of advancing the end effector and elongated shaft of the surgical instrument. You can also do it.

Certain prior art surgical staple fasteners
European Patent Application No. EP 795298 filed on March 12, 1997, title of invention "LINEAR STAPLER WITH IMPROVED FIRING STROKE",
U.S. Pat. No. 5,605,272 issued on February 25, 1997, title of invention "TRIGGER MECHARNISM FOR SURGICAL INSTRUMENTS",
U.S. Pat. No. 5,697,543 issued on December 16, 1997, title of invention "LINEAR STAPLER WITH IMPROVED FIRING STROKE",
US Patent Application Publication No. 2005/0246881 published on November 10, 2005, title of invention "METHOD FOR MAKING A SURGICAL STAPLER",
U.S. Patent Application Publication No. 2007/0208359 published on September 6, 2007, title of invention "METHOD FOR STAPLING TISSUE",
U.S. Pat. No. 4,527,724 issued on July 9, 1985, title of invention "DISPOSABLE LINEAR SURGICAL STAPLING INSTRUMENT",
U.S. Pat. No. 5,137,198 issued on August 11, 1992, the title of the invention "FAST CLOURE DEVICE FOR LINEAR SURGICAL STAPLING INSTRUMENT", and U.S. Patent No. 5 issued on April 11, 1995. 405,073, the title of the invention, "FLEXIBLE SUPPORT SHAFT ASSEMBLY", the entire disclosure of which is incorporated herein by reference.

FIGS. 1 and 2 disclose a surgical staple fastener 100. The instrument 100 includes a handle 110, a shaft 140 extending from the handle 110, and an end effector 150. The handle 110 includes a housing 111, a frame 114 extending through a shaft 140, a closing trigger 120, and a firing trigger 130. The operation of the closing trigger 120 moves the end effector 150 between the open configuration (FIG. 1) and the closed configuration. Primarily with reference to FIG. 2, the closure trigger 120 is pivotally mounted on the handle housing 111 about the pivot 121, and the closure trigger 120 moves between the open position (FIG. 1) and the closed position. Includes a drive portion 122 that sometimes rotates distally. The closure trigger 120 is part of a closure drive that further includes a link 123 and a closure bar 126. The link 123 is rotatably pinned to the drive portion 122 of the closing trigger 120 about the pin 124, and the link 123 is rotatably pinned to the closing bar 126 about the pin 125. When the drive portion 122 of the closure trigger 120 rotates distally, the drive portion 122 provides a closure bar 126 to clamp tissue between the staple cartridge 160 and the anvil 170 during the closure stroke of the closure drive. It is driven to move the staple cartridge 160 of the end effector 150 toward the anvil 170 of the end effector 150. The drive portion 122 includes a lock slot 127 defined therein so that the lock slot 127 receives the distal end 117 of the closure lock 112 when the closure trigger 120 reaches its fully clamped position. It is configured. The closure lock 112 is rotatably mounted on the handle housing 111 about the pivot pin 113 and is urged against the drive portion 122 of the closure trigger 120 by an urging member such as a spring.

The operation of the firing trigger 130 fires the staples detachably stored in the staple cartridge 160 toward the anvil 170. Mainly referring to FIG. 2, the firing trigger 130 is pivotally mounted on the handle housing 111 about the pivot 131, and the firing trigger 130 moves between the non-actuated position (FIG. 1) and the activated position. Includes a driving part that rotates distally when The firing trigger 130 is part of a firing drive that further includes a firing bar 136 that is driven distally as the firing trigger 130 moves towards its operating position. The launch drive also includes a staple driver and a cutting member that are moved distally by the launch bar 136 during the launch stroke of the launch drive. The frame 114, the closing bar 126, and the launch bar 136 are surrounded by, or at least substantially surrounded by, the shaft housing 144.

The handle 110 further includes a firing return spring configured to return the firing trigger 130 to its non-actuated position and reset the firing system after the firing stroke has been completed and the firing trigger 130 has been released by the clinician. It may be. Similarly, the handle 110 may return the closure trigger 120 to its open position to reset the closure system after the closure lock 112 has been pressed by the clinician to disengage the closure lock 112 from the lock slot 127. It may further include a configured closing return spring.

For embodiments disclosed in FIGS. 1 and 2, the firing trigger 130 operates to staple and incise the tissue clamped within the end effector 150 with a single stroke of the firing trigger 130. Furthermore, the embodiments disclosed in FIGS. 1 and 2 do not provide the clinician operating the instrument with the ability to pause between the staple firing and tissue cutting functions of the firing system. In addition, the device does not provide any feedback to the clinician as to whether the device is performing a staple-forming function or a tissue cutting function. Various improvements to this device are presented below.

The surgical stapler 200 is shown in FIGS. 3-8, which is in many respects similar to the instrument 100 and / or other surgical instruments disclosed herein. For example, primarily referring to FIG. 4, the instrument 200 comprises a closure trigger 120 that, when activated, drives the closure bar 126 distally to close the end effector of the instrument 200. Actuation of the closure trigger 120 also advances the launch bar 236 of the launch system to a distally pre-staged position, at least partially, and then activates the launch trigger 130 at this position to end. Staples can be fired from a staple cartridge located inside the effector. The firing trigger 130 includes a driving portion 132, which is aligned with the proximal end 133 of the firing bar 236 as the firing bar 236 moves to its pre-prepared position. Here, referring to FIG. 5, at this point, the firing trigger 130 can be activated to move the firing bar 236 distally to fire the staples from the staple cartridge. However, the activation of the firing trigger 130 and the distal advancement of the firing bar 236 are limited by the stop, ie switch 280. The switch 280 stops the launch bar 236 from advancing distally before the launch bar 236 crosses the tissue trapped in the end effector. To cross the tissue, switch 280 is actuated to release the firing bar 236, as shown in FIG. 6, thereby completing the firing stroke of the firing actuator 130, as shown in FIG. be able to. In this way, staple firing and tissue crossing can include separate and distinctly different operating steps of the instrument 200. In such cases, the clinician can choose when to cut the tissue and / or whether to cut the tissue.

As mentioned above, and primarily with reference to FIG. 5, the launch bar 236 is stopped by the switch 280 during the distal advance of the launch bar 236. The launch bar 236 includes a slot 285 defined therein, and a switch 280 is detachably positioned within the slot 285. The switch 280 is pivotally mounted in the handle housing 111 about the pivot pin 281 and includes a lock arm 282 located in the slot 285. The firing bar 236 can be advanced distally by the firing trigger 130 until the proximal end of slot 285 contacts the lock arm 282. At this point, further distal movement of the launch bar 236 is prevented by the lock arm 282. As shown in FIG. 6, the spring 284 is positioned between the lock arm 282 and the handle housing 111, urging the lock arm 282 into the slot 285 and fixing the lock arm 282 until the switch 280 is activated. Hold in position. As shown in FIG. 7, when the switch 280 is activated, the lock arm 282 rotates out of the slot 285, which allows the launch bar 236 to be advanced distally again. As the launch bar 236 advances towards the end of its launch stroke, the lock arm 282 becomes inconsistent with slot 285 and the spring 284 urges the lock arm 282 against the bottom surface of the launch bar 236. After cutting the tissue, retracting the launch bar 236 towards its unlaunched position allows the lock arm 282 to realign with slot 285, and the spring 284 urges the lock arm 282 into slot 285. can do.

In addition to the above, the staples are fully formed when the firing bar 236 is stopped by the switch 280. In such cases, the tissue may be completely stapled before the cut portion of the launch bar 236 advances to cut the tissue. An alternative embodiment is also recalled in which staples are only partially formed when the firing bar 236 is stopped by the switch 280. In such an embodiment, the tissue is cut as soon as the staple formation is complete. In either case, a pause in the operation of the instrument 200 after the first step is provided, which performs the second step, even if both steps are performed by a single actuation of the trigger. Requires intervention by a clinician to selectively decide whether or not. In other words, the switch 280 stops the firing trigger 130 during the working stroke of the firing trigger 130, and the stopping function of the switch 280 must be broken before the working stroke can be completed. The switch 280 can be operated when the clinician deems it suitable. In certain cases, the switch 280 may be operated immediately after the switch 280 has stopped the firing bar 236, or may be operated after a period of time. In some cases, the switch 280 may be operated prior to stopping the launch bar 236, thereby allowing the first and second steps to be selectively combined.

In addition to the above, the clinician may or may not release the firing trigger 130 during the pause provided by the switch 280. In either case, it is desirable to prevent the launch bar 236 from retreating suddenly and / or unintentionally. To this end, the appliance 200 further comprises a lock 290 configured to hold the launch bar 236 in place so that it can be released. The lock 290 includes a ratchet system, but any suitable lock can be utilized. The lock 290 is rotatably mounted on the housing 111 about a pivot pin 291 and includes a pawl 292 extending from it so that the pawl 292 engages a ratchet tooth 295 defined within the launch bar 236. It is configured. The lock 290 further includes a proximal arm 293 and a spring 294 positioned between the proximal arm 293 and the housing 111 and configured to urge the pawl 292 to engage the teeth 295. When the pawl 292 engages the teeth 295, the lock 290 is configured to allow the launch bar 236 to move distally, but prevent the launch bar 236 from moving proximally. .. The handle 210 of the appliance 200 is a switch configured to engage the proximal arm 293 of the lock 290, rotate the pawl 292 away from the firing bar 236, and disengage the pawl 292 from the teeth 295. 296 is further included. At this point, the launch bar 236 can be retracted.

To retract the launch bar 236, the clinician may press the closure lock 112 to disengage the closure lock 112 from the closure trigger 120 and move the closure trigger 120 to its non-actuated position (FIG. 4). And / or the handle 210 may include a return spring configured to urge the closing trigger 120 towards its non-actuated position. In either case, moving the closure trigger 120 towards its inactive position allows the link 123 to be pulled proximally, which in turn causes the closure bar 126 and launch bar 236 to be proximal. Can be pulled to. More specifically, the pin 125 connecting the link 123 also passes through a longitudinal opening defined within the closing bar 126 and the launch bar 236, such as a longitudinal opening 129 defined within the launch bar 236. When the link 123 is pulled proximally by the closure trigger 120, the pin 125 with the proximal end of the opening 129 and the proximal end of the longitudinal opening defined within the closure bar 126. In contact, the launch bar 236 and closure bar 126 can be pulled proximally. Also, the proximal movement of the launch bar 236 may push the launch actuator 120 back to its non-actuated position and / or even if the launch actuator 120 is returned to its non-actuated position by a return spring. Good. In either case, the lock 290 is reset by pushing the switch 296 distally so that the pawl 292 can re-engage the teeth 295 once the launch bar 236 is returned to its non-actuated position. can do.

In addition to the above, the pawl 292 may be configured to, for example, generate an audible click or the like as the teeth 295 of the firing bar 236 slide under the pawl 292. Such an audible sound can provide the surgeon with feedback that the firing bar 236 is moving distally. Also, the sound emitted at a fast pace indicates that the launch bar 236 is moving at a high speed, while the sound emitted at a slow pace indicates that the launch bar 236 is moving at a slow speed. Such audible sounds can also provide the surgeon with feedback on the velocity of the firing bar 236.

The surgical stapler 300 is shown in FIGS. 9-15, which is in many respects similar to the instruments 100, 200, and / or other surgical instruments disclosed herein. The instrument 300 includes an end effector 350 including a staple cartridge 360 and an anvil 170. During use, the tissue is positioned between the staple cartridge 360 and the anvil 170 and then captured within the end effector 350 by deployable tissue pins 379. The tissue pin 379 is housed in the pin cavity 378 in the staple cartridge 360 and moves distally towards the anvil 170. As discussed in more detail below, when the staple cartridge 360 moves to the closed position, the tissue pin 379 can be pushed distally. Tissue pin 379 includes a lateral grip member 377 configured to allow the clinician to push pin 379 towards the anvil 170 and / or retract the pin into the 379 staple cartridge 360. The staple cartridge 360 includes a lateral slot 375 defined therein which is configured to guide the longitudinal movement of the grip member 377 and the tissue pin 379. Movement of tissue pin 379 is limited by the anvil 170 and the proximal end plate 376.

Primarily with reference to FIG. 9, the instrument 300 further comprises a closure trigger 120, which, when activated, drives the closure bar 126 distally to close the end effector 350 of the instrument 300 and staple cartridge. Clamp the tissue between the 360 and the anvil 170. The instrument 300 also comprises a firing trigger 130 that, when activated, pushes the firing bar 336 distally to eject staples from a staple cartridge 360 located within the end effector 350. Referring to FIGS. 10-15, the staple cartridge 360 includes a cartridge body 361 including a plurality of staple cavities 361a, 361b and knife slots 366 defined therein. The staple cavity 361a is located on the first side surface of the knife slot 366 and the staple cavity 361b is located on the second side surface of the knife slot 366. Although not shown, the staples are housed in the staple cavities 361a, 361b and ejected from the staple cavities 361a, 361b when the staple driver 362 is moved towards the anvil 170 by the firing bar 336. The staple driver 362 is configured to drive a plurality of staple supports, ie cradle 362a, which are configured to drive staples housed in staple cavities 361a, and staples housed in staple cavities 361b. Includes a plurality of staple supports, i.e. cradle 362b. The staple driver 362 further includes longitudinal guides 368a and 368b configured to control and / or limit the movement of the staple driver 362 in longitudinal paths.

In addition to the above, the staple cartridge 360 includes a cutting member that is slidably positioned within the knife slot 366, the knife 367. The staple driver 362 includes a first knife latch 364a and a second knife latch 364b, which hold the knife 366 and the staple driver 362 together and releasably, as described in more detail below. It is configured in. The staple driver 362 includes a first pivot joint 363a and a second pivot joint 363b. The first knife latch 364a is rotatably positioned within the first pivot joint 363a and the second knife latch 364b is rotatably positioned within the second pivot joint 363b. The first knife latch 364a and the second knife latch 364b are in the clamped position (FIGS. 12 and 13) engaged with the knife 367 and the disengaged position (FIG. 14) disengaged from the knife 367. And 15) are rotatable. When the first knife latch 364a and the second knife latch 364b are in the clamped position, the staple driver 362 and the knife 367 move together. During use, the staple driver 362 and knife 367 are pushed distally by the firing bar 336 to move the staples between the unlaunched position (FIG. 12) and the firing position (FIG. 13). As can be seen from FIG. 13, when the staple driver 362 moves to its firing position, the cutting edge of the knife 367 exits the cartridge body 361 and captures the tissue captured between the cartridge body 361 and the anvil 170. There is no disconnection. Instead, the knife 367 is in a prepared position under the deck surface of the cartridge body 361.

As can be seen in FIGS. 12 and 13, the firing bar 336 contacts the first knife latch 364a and the second knife latch 364b and pushes the staple driver 362 distally. Referring to FIGS. 11-13, the first knife latch 364a is releasably engaged with the knife support 369 so that the movement of the staple driver 362 can be transmitted to the knife 367. More specifically, the first knife latch 364a includes a raised portion 365a located in a recess 369a defined within the knife support 369, and similarly, the second knife latch 364b is a knife. Includes a ridge 365b located within a recess 369b defined within the support 369. The ridges 365a and 365b are located in their respective recesses 369a and 369b so that the driving force delivered by the firing bar 336 is transmitted to the staple driver 362 and the knife 367 to deform the staples relative to the anvil 170. You can receive it firmly. The raised portions 365a, 365b and the recesses 369a and 369b are configured to keep the raised portions 365a and 365b engaged with the recesses 369a and 369b until the threshold force is reached, at the point where the threshold force is reached. , Knife latches 364a and 364b are displaced outward in the direction away from the knife support 369, as shown in FIGS. 14 and 15. The threshold force may include, for example, the force required to completely form the staple. At this point, the launch bar 336 is no longer operably engaged with the staple driver 362, and the launch bar 336 can move distal to the staple driver 362. The firing bar 336 can now come into direct contact with the knife support 369 to drive the knife 367 towards the anvil 170 and cross the tissue. As can be seen in FIG. 15, after the staple driver 362 is separated from the knife 367, the knife 367 moves relative to the staple driver 362.

In addition to the above, the launch system of the instrument 300 includes two distinct and distinctly different steps, a first, i.e., staple launching step and a second, i.e., tissue cutting step. The operation of the knife latches 364a and 364b defines the boundary between the two stages. When the knife latches 364a and 364b are clamped to the knife 367, the firing system is in its staple firing state. When the knife latches 364a and 364b are unclamped from the knife 367, the launch system is in its tissue cutting stage. Although these two stages are distinct and distinctly different and there is no overlap between them, embodiments are also recalled in which at least some overlap may exist between the two stages.

The surgical stapler 400 is shown in FIGS. 16 and 17, which is in many respects similar to the instruments 100, 200, 300, and / or other surgical instruments disclosed herein. .. For example, the appliance 400 comprises a handle 410 that includes a housing 411 similar in many respects to the housing 111. The instrument 400 further comprises a closing bar 126, which, in addition to the above, moves the staple cartridge towards the anvil and clamps the tissue between them. As mentioned above, the closure trigger 120 operates to move the closure bar 126 distally. Again, as mentioned above, the closure trigger 120 also advances the launch bar 136 to a pre-prepared position when the closure trigger 120 is activated. The firing trigger 130 can now be activated to move the firing bar 136 distally, firing the staples from the staple cartridge and then incising the tissue. Therefore, it can be said that the firing bar 136 moves distally during all three operating states: the closed operating state, the staple firing operating state, and the tissue incision operating state. The instrument 400 further comprises a progress indicator that reveals the operating state of the instrument 400, as discussed in more detail below.

In addition to the above contents, mainly referring to FIG. 17, the progress indicator includes a fraction 418 on the launch bar 136. The fractionation section 418 includes a protrusion extending laterally from the launch bar 136, but in various other cases, the fractionation section 418 may include, for example, a display section printed on the launch bar 136. The progress indicator further includes a progress bar 415 located within a window 414 defined within the handle housing 411. The progress bar 415 includes a display unit 416 corresponding to the three operating states of the instrument 400. For example, the display unit 416 has a first display unit "clamp" corresponding to the tissue clamp operation state, a second display unit "staple" corresponding to the staple firing operation state, and a third display unit "staple" corresponding to the tissue incision operation state. Includes display "disconnect". The progress bar 415 further includes three lines 417 corresponding to the completion of the operating state. In use, the fraction 418 on the firing bar 136 is aligned with the first line 417 when the closing stroke is complete and the second when the staples are fully fired, as shown in FIG. It is aligned with the third line 417 when the cutting stroke is completed. In other words, the fractionation section 418 moves distally along the advance bar 415 as the launch bar 136 advances distally, indicating the advance of the launch bar 136. Such movement of the fractionation section 418 can be observed by the operator of the surgical instrument 400 through the window 414 defined in the handle housing 411. In at least one embodiment, the portion of the progress bar 415 related to the clamp operating state can be a first color, such as green, and the portion of the progress bar 415 related to the staple firing operating state is For example, a second color such as yellow can be used, and the portion of the progress bar 415 related to the tissue incision operation state can be a third color such as red. In an alternative embodiment, the advance bar 415 may be mounted on the launch bar 136 and the fractionation 418 may extend from the handle housing 411.

FIGS. 18-21 show the surgical staple fastener 500. Instrument 500 is similar in many respects to instruments 100, 200, 300, and / or 400. Instrument 500 comprises an end effector 550 including a staple cartridge 560 and an anvil 170. The staple cartridge 560 includes a cartridge body 561 including a staple cavity 561a defined therein. The staples are detachably stored in the staple cavity 561a. The staple cartridge 560 further includes a staple driver 562, including a pusher 562a, which is configured to move the staples toward the anvil 170 and eject the staples from the staple cavity 561a. Instrument 500 further comprises a launch bar 536 configured to push the staple driver 562 distally towards the anvil 170. The staple driver 562 includes a proximally extending flange 564 that is engaged by the firing bar 536 as the firing bar 536 advances distally. When the end effector 550 is in the unclamped but unfired configuration as shown in FIG. 18, the flange 564 is positioned within the channel 568 defined within the cartridge 561. In practice, the flange 564 is bent or urged inward by the side wall of the channel 568, causing the staple driver 562 to move distally and slide along the side wall. Flange 564 engages with and is held in the inwardly bent portion by the channel sidewalls throughout the staple firing stroke. The end of the staple firing stroke is depicted in FIG.

The staple cartridge 560 further includes a cutting member 567 positioned movably within a knife slot 566 defined within the cartridge body 561. The cutting member 567 includes a base 569 gripped between the flanges 564 so that the cutting member 567 moves with the staple driver 562 as the staple driver 562 is driven distally by the firing bar 563. Revisiting FIG. 19, which depicts the end of the staple firing stroke, it will be appreciated that the cutting member 567 has not yet emerged from the cartridge body 561. Therefore, the staple firing operation of the instrument 500 is distinct and distinct from the tissue incision operation of the instrument 500. When the flange 564 releases the cutting member 567, the instrument 500 transitions between its staple firing operation and its tissue incision operation. Comparing FIGS. 19 and 20, it will be appreciated that the flange 564 bounces outward when the proximal end of the flange 564 is no longer urged inward by the side wall of the channel 568. More specifically, the flange 564 bends outward upon clearing the distal end 565 of the channel 568. At this point, the flange 564 is no longer engaged with the cutting member 567. Further, at this point, the flange 564 is no longer engaged with the launch bar 536, and as a result the launch bar 536 is unable to push the staple driver 562 distally. Instead, the launch bar 536 is in direct contact with the base 569 of the cutting member 567, as shown in FIG. 21, causing the cutting member 567 to advance distally as the launch bar 536 advances distally. The tissue captured between the anvil 170 and the staple cartridge 560 can be traversed.

In addition to the above, the point at which the instrument 500 shifts between the staple firing mode and the tissue cutting motion mode is a function of the distance traveled by the firing bar 536. Other instruments disclosed herein shift between a staple firing mode and a tissue cutting motion mode, for example, depending on the force transmitted by the device launch bar. Certain embodiments may use a combination of both shift methods.

FIGS. 22-28A show the surgical staple fastener 600. Instrument 600 is in many respects similar to instruments 100, 200, 300, 400, 500, and / or other surgical instruments disclosed herein. The instrument 600 comprises a handle 610, which includes a closure trigger 620 configured to operate a closure system or tissue clamp system and a launch trigger 630 configured to operate the launch system. The closing trigger 620 is rotatable between the non-actuated position (FIG. 24) and the actuated position (FIG. 25). The closure system of device 600 is in many respects similar to the closure system of device 100 and is not repeated herein for brevity. In various cases, the appliance 600 includes a lockout system that prevents the activation of the firing trigger 630 before the activation of the closing trigger 620.

In addition to the above, the closure trigger 620 includes a drive portion 622, which pushes the link 123 distally to clamp the end effector of the surgical instrument 600 onto the tissue. The drive portion 622 includes a gap slot 628 defined therein so that the drive portion 622 can move relative to a shaft 634 extending through the gap slot 628.

The launch system of the instrument 600 is distinct and distinct from the closure system. The launch system has two distinct and distinctly different operating functions: staple firing and tissue incision. The staple firing function is performed during the first actuation of the firing trigger 630 and the tissue incision function is performed during the second actuation of the firing trigger 630. Similar to the above, the firing trigger 630 is rotatably connected to the housing 111 about the pivot 131. Primarily with reference to FIGS. 23, 23A, 28, and 28A, the firing trigger 630 includes a gear portion 632 that meshes with and engages with the pinion gear 633. The pinion gear 633 is mounted on a shaft 634 rotatably mounted on the handle housing 111. More specifically, the pinion gear 633 is mounted on the first portion 634a of the shaft 634 so that the pinion gear 633 and the shaft portion 634a rotate together. Therefore, the operation or rotation of the firing trigger 630 causes the pinion gear 633 and the first shaft portion 634a to rotate.

With reference to FIGS. 28 and 28A again, the shaft 634 further includes a second portion 634b that is selectively engageable with the first portion 634a at the ratchet junction surface 639. When the second shaft portion 634b is operably engaged with the first portion 634a, the rotation of the first portion 634a is transmitted to the second portion 634b and the first and second shaft portions 634a, 634b rotates together. The output pinion gear 635 is mounted on the second shaft portion 634b, whereby the pinion gear 635 rotates with the second shaft portion 634b. The pinion gear 635 meshes with a rack 637 defined on the proximal end of the launch bar 636. Here, referring to FIG. 25, during use, the ratchet joint surface 639 transmits the rotational movement of the firing trigger 630 to the firing bar 636 when the firing trigger 630 is activated, and the firing bar 636 is placed distally (in FIG. 28). It is configured to drive in the D direction).

In addition to the above, referring again to FIG. 25, the first actuation of the firing trigger 630 pushes the firing bar 636 distally to fire the staples. As shown in FIG. 26, after the first actuation, the surgeon may release the firing trigger 630 and return the firing trigger 630 to its unfired position by a return spring operably coupled to the firing trigger 630. it can. Alternatively, the surgeon may manually return the firing trigger 630 to its inactive position. In either case, the ratchet junction surface 639 allows the first shaft portion 634a to rotate relative to the second shaft portion 634b when the firing trigger 630 is returned to its unfired position. It is configured. More specifically, the first shaft portion 634a slides against the corresponding ratchet teeth defined on the second shaft portion 634b when the firing trigger 630 is returned to its non-actuated position. , Including ratchet teeth. In order to adapt to such relative motion, the first shaft portion 634a can be displaced away from the second shaft portion 634b. The handle 610 provides, for example, an urging member such as a spring configured to re-engage the first shaft portion 634a with the second shaft portion 634b once the firing trigger 630 is returned to its non-actuated position. Further included.

With reference to FIG. 26 again, the reader will understand that the firing bar 636 is only partially advanced during the first stroke of the firing trigger 630. The partial advancement of the firing bar 630 during the first stroke of the firing trigger 630 thus fires or completely forms the staples stored in the end effector of the instrument 600, but in the end effector. It does not cross the captured tissue. Now referring to FIG. 27, the firing trigger 630 can fully advance the firing bar 630 in the second actuation and cross the tissue. As outlined above, the actuation or rotation of the firing trigger 630 drives the pinion gear 633, shaft 634, and output pinion gear 635 to advance the firing bar 636 distally. In various cases, the surgeon may choose not to cross the tissue and instead may unclamp the tissue after the staple is fired. In such cases, the surgeon does not activate the firing trigger 630 a second time. In various cases, the above teachings relating to the instrument 600 can be used, for example, in the context of the instrument 400 and / or 500.

Figures 29-33A show the surgical staple fastener 700. Instrument 700 is in many respects similar to instrument 100, 200, 300, 400, 500, 600, and / or other surgical instruments disclosed herein. The instrument 700 comprises a handle 710, which includes a closure trigger 620 configured to operate a closure system or tissue clamp system and a firing trigger 630 configured to operate the firing system. The closing trigger 620 is rotatable between the non-actuated position (FIG. 30) and the actuated position (FIG. 31). The closure system of device 700 is in many respects similar to the closure system of device 100 and is not repeated herein for brevity. In various cases, the appliance 700 includes a lockout system that prevents the activation of the firing trigger 630 before the activation of the closing trigger 620.

The launch system of the instrument 700 is distinct and distinct from the closure system. The launch system has two distinct and distinctly different operating functions: staple firing and tissue incision. The actuation of the firing trigger 630 performs both functions, as described in more detail below. The firing trigger 630 is rotatably mounted on the handle 710 around the pivot 131 and includes a gear portion 632. The teeth of the gear portion 632 mesh with the pinion gear 733 rotatably mounted on the handle 710 around the shaft 734. The shaft 734 further includes two cam lobes attached to it, namely a first cam lobe 735a and a second cam lobe 735b. The first cam lobe 735a is configured to engage the staple firing bar 736a and advance it, and the second cam lobe 735b is configured to engage the tissue cutting bar 736b and advance it. There is. The cam lobes 735a, 735b are mounted on the shaft 734 so that they rotate with the shaft 734.

Referring to FIG. 31, prior to the firing trigger 630 being activated, the first cam lobe 735a is aligned with the first cam surface 737a defined on the proximal end of the staple firing bar 736a and the second. Camlobe 735b is aligned with a second cam surface 737b defined on the proximal end of the tissue cutting bar 736b. The first cam lobe 735a and the second cam lobe 735b are attached to the shaft 734 due to a discrepancy. As shown in FIG. 31, when the firing trigger 630 is in its inactive position, the first cam lobe 735a is positioned adjacent to the first cam surface 737a and the second cam lobe 735b is the second cam lobe 735b. It is separated from the cam surface 737b.

In addition to the above, the firing trigger 630 operates to drive the staple firing bar 736a and the tissue cutting bar 736b during a single stroke of the firing trigger 630. The first part of the firing trigger actuation drives the staple firing bar 736a distally, and the second part of the firing trigger actuation drives the tissue cutting bar 736b distally. The first part does not overlap with the second part of the firing trigger actuation. In other words, the staple firing process is complete before the tissue cutting process begins. During use, the inclined surface 738a of the first cam lobe 735a shifts the staple firing bar 736a distally until the inclined surface 738a passes through the first cam surface 737a. At this point, the dwell 739a of the first cam lobe 735a is aligned with the first cam surface 737a and the staple firing bar 736a is prevented from being moved distally by the first cam lobe 735a. In various other embodiments, the dwell 739a of the first cam lobe 735a may complete the staple forming process. In such cases, the inclined surface 738a of the first cam lobe 735a initiates the staple forming process and the dwell 739a terminates the staple forming process. In at least one case, the ramp surface 738a can complete more of the staple forming process than the dwell 739a. In such cases, the staples quickly grab the tissue and then slowly close it to completely secure the tissue in it. Alternatively, the dwell 739a may complete more of the staple forming process than the inclined surface 738a. In such cases, the compression pressure applied by the staples may be applied over a longer period of time, which can better allow the fluid to flow out of the tissue during the staple formation process. In each case, the second cam lobe 735b is separated from the inclined surface 738a by the dwell 739a. When the shaft 734 is rotated by the launch actuator 630, as shown in FIGS. 32 and 32A, the second cam lobe 735b rotates and comes into contact with the second cam surface 737b, as shown in FIGS. 33 and 33A. , The staple cutting process is complete.

In addition to the above, in various cases the instrument 700 may include a stop that fractionates the transition between the staple firing process and the tissue cutting process. This stop can, for example, interfere with or prevent the movement of the launch actuator 630 after the staple launch bar 736a has fully advanced and before the tissue cutting bar 736b has advanced. The handle 710 may include a stop release portion that, when activated, may allow the surgeon to complete the firing stroke of the firing actuator 630. Such embodiments may allow the surgeon to choose whether to continue the tissue cutting function of the instrument 700. In certain cases, the instrument 700 generates tactile feedback, such as audible and / or tactile feedback, as the firing actuator 630 passes through the transition between the staple firing function and the tissue cutting function. Can be done.

In addition to the above, in various alternative embodiments, the tissue cutting process may at least partially overlap with the staple forming process. In such an embodiment, the first cam lobe 735a and the second cam lobe 735b may allow the first cam lobe 735a to drive the staple firing bar 736a at the same time that the second cam lobe 735b drives the tissue cutting bar 736b. As such, it is positioned and located on the shaft 734.

In addition to the above, the firing actuator 630 can fire the staples and / or act to dissect the tissue before returning it to its non-actuated position. The handle 710 may include a return spring engaged with the launch actuator 630, which is urged to return the launch actuator 630 to its inactive position. In addition to or instead of the above, the appliance 700 is configured to return the bars 736a, 736b to their unlaunched positions, with one or more urgings engaged with the bars 736a, 736b. Members may be included. As the firing actuator 630 is returned to its non-actuated position, the gear portion 632 rotates the pinion gear 733, shaft 734, and cam lobes 735a, 735b in opposite directions to engage the cam lobes 735a, 735b from bars 736a, 736b, respectively. To release.

FIGS. 34-38 show the surgical staple fastener 800. Instrument 800 is in many respects similar to instruments 100, 200, 300, 400, 500, 600, and / or 700, and / or other surgical instruments disclosed herein. Instrument 800 comprises a handle 810, which includes a closure trigger 620 configured to operate a closure system or tissue clamp system. Instrument 800 further comprises a firing trigger 830a configured to operate the staple firing system and a cutting trigger 830b configured to operate the tissue cutting system. The closing trigger 620 is rotatable between the non-actuated position (FIG. 35) and the actuated position (FIG. 36). The closure system of device 800 is in many respects similar to the closure system of device 100 and is not repeated herein for brevity. In various cases, the instrument 800 includes a lockout system that prevents the activation of the firing trigger 830a and / or the disconnection trigger 830b before the closing trigger 620 is activated.

The launch system of the instrument 800 is distinct and distinct from the closure system. The actuation of the firing trigger 830a activates the staple firing system to deform the staples detachably stored in the end effector of the appliance 800. The firing trigger 830a is rotatably mounted on the handle 810 between the unfired position (FIG. 36) and the firing position (FIG. 37) around the pivot 131. As shown in FIG. 36, the firing trigger 830a includes a curved cam member 832a extending from it, and the cam member 832a moves distally when the firing trigger 830a is activated. The cam member 832a contacts the proximal end 837a of the staple firing bar 836a as the cam member 832a advances distally to drive and deform the staples detachably stored in the end effector of the instrument 800. ..

The cutting system of the instrument 800 is distinct and distinct from the launch and closure systems. The activation of the cutting trigger 830b activates the tissue cutting system to cut the tissue captured in the end effector of the instrument 800. The disconnect trigger 830b is rotatably mounted on the handle 810 between the non-operating position (FIG. 37) and the operating position (FIG. 38) about the pivot 131. As shown in FIG. 38, the cutting trigger 830b includes a curved cam member 832b extending from it, and the cam member 832b moves distally when the cutting trigger 830b is activated. The cam member 832b contacts the proximal end 837b of the tissue cutting bar 836b as the cam member 832b advances distally to cut the tissue.

When the firing actuator 830a rotates over the first range of motion, the firing stroke of the firing bar 836a is completed, and when the cutting actuator 830b rotates over the second range of motion, the cutting stroke of the cutting bar 836b is completed. Other embodiments are also recalled in which the firing stroke is the same length as the cutting stroke, or at least substantially the same length, but the length of the firing stroke is different from the length of the cutting stroke. Further, the first range of motion of the launch actuator 830a is the same as, or at least substantially the same as, the second range of motion of the cutting actuator 830b, but the first range of motion is different from the second range of motion. The embodiment of is also recalled.

With reference to FIGS. 37 and 38 again, the launch actuator 830a includes a recess 839 defined therein. The recess 839 is configured to receive, or at least partially, receive the cutting actuator 830b therein. As shown in FIG. 36, the cutting actuator 830b is nested with the firing actuator 830a when the firing actuator 830a and the cutting actuator 830b are in their inactive positions. As shown in FIG. 37, when the firing actuator 830a is moved to its operating position, the cutting actuator 830b can remain in its non-operating position, so that the actuators 830a, 830b are placed in a non-nested state. Can be done. After that, as shown in FIG. 38, the actuator 830b can be re-nested with the firing actuator 830a by the operation of the cutting actuator 830b.

In addition to the above, separate and distinctly distinct actuators 830a, 830b may allow the staple firing system and tissue cutting system of the instrument 800 to be selectively operated in distinct and distinctly different fashions. However, the surgeon has the option of simultaneously actuating the actuators 830a, 830b of the instrument 800. In such cases, the instrument 800 simultaneously staples and cuts the tissue trapped in the end effector. Alternatively, in at least one embodiment, the appliance 800 may include a lockout configured to prevent the cutting actuator 830b from operating prior to full operation of the firing actuator 830a. In such an embodiment, the surgeon does not have the option of simultaneously actuating the actuators 830a and 830b, but still has the option of selectively actuating the cutting actuator 830b. In a further alternative embodiment, the cutting actuator 830b may be unlocked at some point during operation of the firing actuator 830a so that the actuators 830a, 830b can then be actuated simultaneously if desired by the surgeon. .. Such an embodiment may ensure that the staples are at least partially fired, or at least fully fired, before cutting the tissue.

Figures 39-44 show the surgical staple fastener 900. Instrument 900 is in many respects similar to instruments 100, 200, 300, 400, 500, 600, 700, 800, and / or other surgical instruments disclosed herein. Instrument 900 is configured to operate a housing 911, a closure trigger 620 configured to operate a closure system or tissue clamp system, first to operate a staple launch system and second to operate a tissue cutting system It comprises a handle 910, including a firing trigger 930a. The closing trigger 620 is rotatable between the non-operating position (FIG. 40) and the operating position (FIG. 41). The closure system of instrument 900 is in many respects similar to the closure system of instrument 100 and is not repeated herein for brevity. In various cases, the instrument 900 includes a lockout system that prevents the activation of the firing trigger 930 before the activation of the closing trigger 620.

In addition to the above, the firing trigger 930 is rotatably mounted on the handle housing 911 between the non-operating position (FIG. 41) and the operating position (FIG. 42) around the pivot 131. As described in more detail below, the firing trigger 930 operates the staple firing system during the first activation of the firing trigger 930 (FIG. 42) and during the second activation of the firing trigger 930 (FIG. 43). Operate the tissue cutting system. The firing trigger 930 includes a curved cam portion 932 that moves distally upon activation of the firing trigger 930. The cam portion 932 comes into contact with the cam plate 985 as the cam portion 932 rotates distally. The cam plate 985 is slidably mounted within the handle housing 911. The cam plate 985 is slidable in the longitudinal direction when pushed distally by the cam portion 932. The cam plate 985 includes a drive slot defined between the arms 986 and 987 extending from the distal end of the cam plate 985. The drive slot is configured to receive the proximal end of the staple launch bar 936a, whereby when the cam plate 985 is pushed distally, the cam plate 985 drives the launch bar 936a distally. Then, the staples that are detachably stored in the end effector of the instrument 900 are fired. More specifically, the distal arm 986 contacts the proximal end 987a of the staple launch bar 936a and pushes the launch bar 936a distally.

In addition to the above, the cam plate 985 is also slidable in the lateral direction. More specifically, the cam plate 985 has a first position (FIGS. 41 and 42) in which the cam plate 985 is operably engaged with the staple firing bar 936a, and the cam plate 985 has a tissue cutting bar 936b. It is slidable to and from a second position (FIGS. 43 and 44) that is operably engageable. The handle 910 further includes a pusher block 980 engaged with the cam plate 985. The pusher block 980 includes a pushpin 981 extending from it, the pushpin 981 extending through the handle housing 911. The pusher block 980 may include another pushpin 981 extending in the opposite direction through the handle housing 911. In any case, the user of the surgical instrument 900 shifts the pusher block 980 between its first position and its second position by applying force to one of the pushpins 981. be able to. When the pusher block 980 is in its second position, the tissue cutting bar 936b is positioned within a drive slot defined between the arms 986 and 987. At this point, the cam plate 985 is operably coupled to the tissue cutting bar 936b, and subsequent activation of the firing trigger 930 activates the tissue cutting system.

During use, the instrument 900 is positioned within the patient and the end effector of the instrument 900 is positioned with respect to the tissue to be treated. The closure trigger 620 is then activated to clamp the end effector onto the tissue. At this point, the pusher block 980 is positioned in its first position and is operably engaged with the staple firing bar 936a. The activation of the firing trigger 930 then advances the staple firing bar 936a distally, but because the cam slide 985 is not engaged with the tissue cutting bar 936b, the activation of the firing trigger 930 is the tissue cutting bar 936b Do not move forward. After activating the firing trigger 930, the firing trigger 930 can be released and returned to its non-actuated position, as shown in FIG. Similar to the above, the handle 910 may include a return spring configured to return the firing trigger 930 to its inactive position. The firing bar 936a remains in its firing position when the firing trigger 930 is returned to its non-actuated position, also as shown in FIG. Here, referring to FIG. 44, the pusher block 980 can be moved to its second position to disengage the pusher block 980 from the staple firing bar 936a and engage the pusher block 980 with the tissue cutting bar 936b. it can. The activation of the firing trigger 930 can then advance the tissue cutting bar 936b distally to cut the tissue, but the surgeon has the option of not cutting the tissue and the second activation of the firing trigger 930. You may release the tissue from the end effector without doing this. The handle 910 may include a closure trigger 620 and a release mechanism configured to return the closure system to their unfired position. In any case, the instrument 900 may include one or more return springs and / or return mechanisms for resetting the bars 936a, 936b to their non-actuated positions. In at least one case, the bars 936a, 936b can be reset when the end effector is reopened.

As mentioned above, the staple firing bar 936a remains in its distal firing position while the firing trigger 930 is reactivated to drive the tissue cutting bar 936b distally. In various cases, the launch bar 936a may remain in its launch position, for example due to the frictional force between the launch bar 936a and the frame of the appliance 900, but such frictional force can be overcome. The launch bar 936a can be pushed proximally. Referring now to FIG. 45, in certain cases, the staple firing bar and / or the tissue cutting bar affirmatively holds the bar in the working position, or at least in the partially working position. Means may be included.

In addition to the above, in at least one exemplary embodiment, the surgical instrument 1000 comprises a handle 1010 that includes a handle housing 1011. The instrument 1000 further comprises a staple launch bar 1036a configured to eject and deform staples detachably stored in the end effector of the instrument 1000 when the launch bar 1036a is pushed distally. Instrument 1000 also comprises a tissue cutting bar 1036b configured to incise the tissue trapped within the end effector of instrument 1000. The handle 1010 includes, for example, a lock 1090 configured to hold the firing bar 1036a in place while operating the cutting bar 1036b. The lock 1090 includes a first end mounted on the handle housing 1011 and a second end engaged with the rack 1093a of the launch bar 1036a, i.e. the cantilever end 1092. Rack 1093a allows the launch bar 1036a to move distal to the lock 1090, as shown in FIG. 46, and the launch bar 1036a locks 1090 until the lock 1090 is released from the launch bar 1036a. Includes longitudinally aligned teeth configured to prevent proximal movement with respect to.

In addition to the above, the lock 1090 continuously positions itself behind each tooth of the rack 1093a as the launch bar 1036a passes through the lock 1090. If the surgeon suspends the advance of the launch bar 1036a at some point during the launch stroke of the launch bar 1036a, the lock 1090 can hold the launch bar 1036a in place until the launch stroke is resumed. After the staple firing stroke is complete, the lock 1090 is positioned behind the most proximal tooth of the firing bar 1036a. At this point, the lock 1090 is held in engagement with the firing bar 1036a by the tissue cutting bar 1036b. The cutting bar 1036b includes a rack 1093b defined therein, the rack 1093b similarly causing the cutting bar 1036b to move distal to the lock 1090, as shown in FIG. Longitudinal, which is permissible and, as shown in FIG. 48, is configured to prevent the cutting bar 1036b from moving proximally to the lock 1090 until the cutting bar 1036b completes its cutting stroke. Includes directionally aligned teeth. At this point, the lock 1090 can slide off the ends of the firing bar 1036a and the cutting bar 1036b and disengage from the bars 1036a and 1036b.

In addition to the above, the lock 1090 is a bar that allows the lock 1090 to elastically deploy after the racks 1093a and 1093b have passed the lock 1090 and disengage itself from the bars 1036a and 1036b. It is held in a bent configuration by 1036a and 1036b. The rack 1093a is defined on a flexible cantilever 1094a extending proximally from the launch bar 1036a, and the rack 1093b is defined on a flexible cantilever 1094b extending proximally from the cutting bar 1036b. The racks 1093a and 1093b are configured to bend in cooperation with the lock 1090. In any case, the bars 1036a and 1036b can return to their inactive positions after the locks 1090 have been disengaged from the racks 1093a and 1093b, respectively. In various cases, one or more return springs can be associated with bars 1036a and 1036b to return bars 1036a and 1036b to their inactive positions.

With reference to FIG. 49, the appliance 1000 can, for example, disengage the lock 1090 from the firing bar 1036a and / or the cutting bar 1036b prior to the completion of the firing and / or cutting stroke of the appliance 1000. It may include a reset actuator such as 1190. Actuator 1190 includes a first end 1191 rotatably mounted to the handle housing via a pivot pin 1193, plus a second end 1192 configured to engage the lock 1090. .. The pushbutton 1194 is operably engaged with the first end 1191 of the actuator 1190, and when the pushbutton 1194 is pressed, the second end 1192 of the actuator 1190 is rotated as shown in FIG. It is configured to engage with the lock 1090. In such cases, the actuator 1190 bends the second end 1092 of the lock 1090 away from the bars 1036a and 1036b and disengages the lock 1090 from the racks 1093a and 1093b. At this point, the bars 1036a and 1036b can be retracted to their inactive positions. Such a release actuation system may allow the instrument 1000 to be quickly released and unclamped from the tissue at any suitable time during operation of the instrument 1000. The push button 1194 can be pressed during the firing stroke, after the firing stroke, during the cutting stroke, and / or after the cutting stroke to release the lock 1090.

With reference to FIGS. 50-53, the surgical instrument 1200 comprises an end effector 1250 and a closure system configured to close the end effector 1250. The end effector 1250 includes a staple cartridge 1260 and an anvil 170. The staple cartridge 1260 includes a cartridge body 161 and a plurality of staple cavities defined in the cartridge body, and staples detachably stored in the staple cavities. The staple cartridge 1260 is movable towards the anvil 170 between the open position (FIG. 50) and the closed position (FIG. 51) so as to compress the tissue between the cartridge body 161 and the anvil 170. The appliance 1200 further comprises a closing bar 126 mounted on the cartridge body 161. The closing bar 126 can move the staple cartridge 1260 to the distal side when it is advanced to the distal side, and can move the staple cartridge 1260 to the proximal side when it is retracted to the proximal side. The end effector 1250 further includes a guide rail 168 configured to guide the staple cartridge 1260 along its longitudinal axis as it moves the staple cartridge 1260 proximally and distally.

Primarily with reference to FIGS. 50 and 51, the distal advance of the closure bar 126 also advances the tissue pin 379 distally to trap tissue within the end effector 1250. More specifically, the closure bar 126 includes a drive pin 128a extending laterally from it, the drive pin 128a being one or more tissue pins as the closure bar 126 moves distally. It is configured to engage the actuator 372. The tissue pin actuator 372 is rotatably mounted on the shaft frame 114 about the pivot pin 118 and is movable between the non-operating position (FIG. 50) and the operating position (FIG. 51). Each tissue pin actuator 372 includes a drive portion 373 configured to engage and push the base 374 of the tissue pin 379. The tissue pin 379 is slidably held in a cavity 378 defined within the end effector 1250 so that movement of the tissue pin 379 is restricted to a longitudinal path. The anvil 170 includes a pin opening 179 defined therein, the pin opening 179 being configured to receive tissue pin 379 when the tissue pin 379 reaches its fully deployed position. ..

In addition to the above, the staple cartridge 1260 moves towards the anvil 170 before the tissue pin 379 is deployed. In such cases, the tissue is continuously clamped and then trapped in the end effector 1250, while the tissue is simultaneously clamped by the cartridge 1260 and trapped in the end effector 1250 by the tissue pin 379, an alternative. Embodiments are also recalled. Other embodiments are also recalled in which tissue pins 379 are deployed before the staple cartridge 1260 moves distally to compress the tissue.

In addition to the above, the staple cartridge 1260 further includes a staple driver 162 configured to drive the staples towards the anvil 170. The anvil 170 includes a forming pocket 171 defined therein, the forming pocket 171 being configured to deform the staples. As described in more detail below, the staple driver 162 is pushed distally by the firing bar 1236. With reference to FIGS. 50 and 51 again, the closure bar 126 further includes a second drive pin 128b extending laterally from it, the second drive pin 128b engaging the launch bar 1236, and the cartridge 1260 tissue. The firing bar 1236 is configured to move distally with the cartridge 1260 as it moves distally to clamp. In this way, the relative positions of the firing bar 1236 and the staple cartridge 1260 can be maintained, or at least substantially maintained, during the closure of the end effector 1250.

The launch bar 1236 does not directly push the staple driver 162, but rather the launch bar 1236 directly pushes the intermediate driver 1263 which transmits the movement of the launch bar 1236 to the staple driver 162. More specifically, the intermediate driver 1263 includes a plurality of drive arms 1264 extending distally from the drive arm 1264, which contacts the drive surface 1265 defined on the proximal side surface of the staple driver 162. ing. As shown in FIG. 52, when the launch bar 1236 is advanced distally to deform the staples with respect to the anvil 170, the drive arm 1264 forces a force between the launch bar 1236 and the staple driver 162. To convey.

Each of the drive arms 1264 is rotatably connected to the intermediate driver 1263 about the pivot pin 1266. Each drive arm 1264 is configured and arranged so that a specific amount of force can be transmitted to the staple driver 162, and when the force transmitted by the drive arm 1264 exceeds the threshold force, the drive arm 1264 is shown in FIG. 53. As shown in, it can take a rotated and folded posture. The threshold force is selected to match the force required to transform the staple into its formation or fired configuration, but a range of forces to transform the staple to a suitable post-molding height. Is suitable, and it is understood that the threshold force may be anywhere within this suitable range or may exceed this range. In any case, the folding of the drive arm 1264 allows the intermediate driver 1263 to move towards or towards the staple driver 162, at which point the staple driver 162 moves towards the anvil 170. You may not do it. Further, at this point, the staple firing process is complete and the relative motion between the intermediate driver 1263 and the staple driver 162, which is now possible, is used to deploy the cutting member, the knife, towards the anvil 170. And the tissue is cut. The cutting stroke of the knife begins when the drive arm 1264 begins to fold and ends when the drive arm 1264 comes into contact with the support surface 1239 defined on the intermediate driver 1263. As a result of the above, the tissue cutting action is distinct and distinct from the staple firing action. Further, the staple firing operation and the tissue cutting operation are performed continuously and without overlapping. Such an arrangement prevents crossing of the tissue before the staples are fully formed.

It will be appreciated by the reader that the operator of the surgical instrument 1200 may retract the firing bar 1236 to its unlaunched position at any time during the staple firing operation of the instrument 1200. More specifically, the launch bar 1236 can be returned proximally until it comes into contact with the second drive pin 128b of the closure bar 126. It will also be appreciated by the reader that the operator of the surgical instrument may open the end effector 1250 and move the staple cartridge 1260 away from the anvil 170 at any time during the staple firing operation of the instrument 1200. However, instrument 1200 includes a lockout system configured to prevent the end effector 1250 from being opened during the tissue cutting operation. In addition, the knife member must be fully retracted by the firing bar 1236 before the tissue pin 379 can retract and / or before the end effector 1250 can be opened. Such a lockout system is depicted in FIGS. 51-53.

Referring to FIG. 51, each drive arm 1264 of the staple firing system includes a lock pin 1267 extending from it. Each lock pin 1267 is located within a lock slot defined within the cartridge body 161 and each lock slot includes a first portion 1268 and a second portion 1269. As discussed in more detail below, the lock pin 1267 is located within the first portion 1268 during the staple forming operation and within the second portion 1269 during the tissue cutting operation. During the staple forming operation of the instrument 1200, the lock pin 1267 slides distally within the first portion 1268 of the lock slot as shown in FIG. In practice, the lock pin 1267 is moved proximally and distally within the first portion 1268, whereby the firing bar 1236 selectively advances and retracts during the staple forming operation, as described above. Can be made possible. Further, such movement of the pin 1267 within the first portion 1268 also proximal to the staple cartridge 1261 away from the anvil 170 of the instrument 1200 to open the end effector 1250, as described above. Allows you to selectively move to the side. However, during the tissue cutting operation, the lock pin 1267 enters the second portion 1269 of the lock slot. At this point, the side wall of the second portion 1269 prevents the cartridge body 161 from retracting with respect to the firing bar 1236. In this way, the staple cartridge 1260 is locked in place when the cutting member is exposed or may be exposed. In such cases, the end effector 1250 cannot be opened until the cutting member retracts, or at least sufficiently retracts. The cutting member retracts as the launch bar 1236 is pulled proximally. As the firing member 1236 is pulled proximally, the lock pin 1267 moves from the second portion 1269 to the first portion 1268 of the lock slot, unlocking the cartridge body 161. At this point, the lock pin 379 can be retracted and / or the end effector 1250 can be opened.

FIGS. 54-56 show an alternative embodiment of the tissue staple fastening / cutting mechanism of the surgical instrument 1300. The instrument 1300 comprises a staple cartridge jaw 1360, which first comprises a plurality of staple drivers 1362 configured to eject staples from the staple cartridge 1360 to staple tissue. Second, it includes a knife member 1367 configured to incis the tissue. The staple driver 1362 and the knife member 1367 are deployed by the launching member 1336, but as will be described later, the staple driver 1362 and the knife member 1367 are not deployed. The launching member 1336 includes a tooth rack 1369 that moves or translates distally in the D direction to deploy a staple driver 1362 and a knife member 1367. Instrument 1300 further comprises a gear train 1366 that includes a plurality of rotatable gears that are operably engaged, ie, meshed with, rack 1369. The rack 1369 and the gear train 1366 are configured to convert the translational motion of the launching member 1336 into the rotational motion of the gear train 1366.

Gear train 1366 includes first and second output gears 1368. Each output gear 1368 is mounted on the shaft 1363 so that the shaft 1363 and the gear 1368 rotate together. Gear train 1366 further includes staple firing output cams 1364a, 1364b mounted on each of the shafts 1363. In the embodiments shown, each shaft 1363 includes a first and second staple deployment cam 1364a mounted on it that rotates with the shaft 1383. Each cam 1364a includes a concavo-convex surface configured to engage a drive surface 1365a defined at the bottom of the staple driver 1362. When the cam 1364a is rotated by the shaft 1363, the cam profile has a first orientation associated with the unlaunched position of the staple driver 1362 (FIG. 54) and a second orientation associated with the staple driver 1362 firing position (FIG. 54). It rotates between 55). The first and second orientations are, for example, approximately 180 degrees apart. Such movement of the cam 1364a and the staple driver 1362 constitutes the firing stroke of the appliance 1300, and the apex of the cam 1364a is driven when the staple driver 1362 reaches the end of the firing stroke, as shown in FIG. It is in contact with the surface 1365a.

In addition to the above, the appliance 1300 comprises four staple firing cams 1364a, but any suitable number of cams 1364a can be utilized. The four staple firing cams 1364a are positioned and positioned relative to the drive surface 1365a to provide a balanced, or symmetrical firing load to the staple driver 1362. Comparing FIGS. 54 and 55, the reader will understand that the staple firing cam 1364a moves the staple driver 1362 relative to the knife member 1367. The knife member 1367 is deployed independently of the staple driver 1362, as will be described later.

The gear train 1366 further includes a tissue cutting output cam 1364b mounted on each of the shafts 1363. The cam 1364b is configured to deploy the knife member 1367. Similarly, the cam 1364b rotates between a first orientation (FIG. 54) and a second orientation (FIG. 55) during the staple firing process described above, while the cam 1364b staples during this rotation. Do not push the driver 1362 or staple member 1367 distally. Referring here to FIG. 56, later rotation of the shaft 1363 and cam 1364b engages the cam 1364b with the drive surface 1365b of the knife member 1367, which pushes the knife member 1367 distally and is stapled. Is disconnected. Such subsequent rotation also rotates the apex of the staple firing cam 1364a to disengage it from engagement with the drive surface 1365a. In such cases, the staple driver 1362 can float back to the staple cartridge 1360, i.e. retreat back, when the tissue is cut.

As described above, the cams 1364a and 1364b are positioned and arranged on the shaft 1363 so that the staple firing operation and the tissue cutting operation do not occur at the same time. In some cases, the cams 1364a and 1364b may be arranged so that there is a short break between the staple firing and the tissue cutting action. In at least one such case, cam 1364a and / or cam 1364b may include a dwell that results in a pause between the staple firing action and the tissue cutting action. Such a pause can give the surgeon the opportunity to stop the movement of the instrument 1300 between the staple firing stroke and the tissue cutting stroke. In an alternative embodiment, the cams 1364a and 1365b may be positioned and placed on the shaft 1363 such that there is an overlap between the staple firing action and the tissue cutting action. Such overlap allows for high speed operation of the instrument.

FIGS. 57-59 show an alternative embodiment of the tissue staple fastening / cutting mechanism of the surgical instrument 1400. The instrument 1400 includes a cartridge body 1461, a plurality of staple drivers 1462 configured to staple from the cartridge body 1461 to staple the tissue, and a knife member 1467 configured to incis the tissue. Includes a staple cartridge jaw portion 1460. The staple driver 1462 and the knife member 1467 are deployed by the launching member 1436, but as will be described later, the staple driver 1462 and the knife member 1467 are not deployed. The staple driver 1462 and knife member 1467 move distally between the first, i.e. non-actuated position (FIG. 57) and the second position corresponding to the end of the staple firing process (FIG. 58). .. The knife member 1467 can then be moved with respect to the staple driver 1462 to a third position shown in FIG. 59.

In addition to the above, the launching member 1436 includes an inclined drive surface 1464 defined on it. During use, the staple driver 1462 and knife member 1467 are pushed distally by the drive surface 1464 to fire staples from the cartridge body 1461. More specifically, the drive surface 1464 pushes the knife member 1467 distally, which in turn pushes the staple driver 1462 distally, at least during the staple firing process. Knife member 1467 includes rollers 1465a and 1465b in contact with the inclined surface 1464. The rollers 1465a and 1465b are rotatably mounted on the knife member 1467 about the drive pins 1469a and 1469b, respectively. The drive pins 1469a and 1469b are located in drive slots 1436a and 1463b defined in the frame 1468 connecting the staple driver 1462, respectively. The drive pins 1469a and 1469b are configured to lean against the distal side walls of the drive slots 1436a and 1436b, respectively, when the knife member 1467 is pushed distally by the launch member 1436. In this way, the staple firing force is transmitted from the firing bar 1436 to the staple driver 1462 via the drive slopes 1464, rollers 1465a, 1465b, drive pins 1469a, 1469b, and drive slots 1436a, 1466b. Distal movement of the staple driver 1462 is limited, for example, by a stop surface 1466 defined within the cartridge body 1461. When the staple driver frame 1468 comes into contact with the stop surface 1466 (see FIG. 58), the firing stroke of instrument 1400 is complete. At this point, only a portion of the cut surface of the knife member 1467 comes out of the cartridge body 1461, but the tissue is not yet exposed to the cut surface. More specifically, the jaw or anvil on the opposite side of the staple cartridge 1460 may include a cavity configured to receive the exposed portion of the cut surface, and as a result, at this point in the operation of the instrument 1400. The possibility that the knife member 1467 cuts the tissue is reduced.

As mentioned above, the distal movement of the staple driver 1462 and knife member 1467 is restricted by the stop surface 1466 at the end of the firing stroke, resulting in further distal or longitudinal movement of the firing bar 1436. It is no longer converted to distal or longitudinal movement of 1462 and the knife member 1467. Alternatively, referring to FIG. 59, further distal movement of the launch bar 1436 is converted to lateral movement of the knife member 1467. More specifically, further distal movement of the tilted surface 1464 creates a reaction force between the knife member 1467 and the static driver frame 1468, which tilts the knife member 1467 downward. Shift laterally along the surface 1464. Lateral movement of the knife member 1467 is facilitated by rollers 1465a, 1465b, which inclines in response to continued distal movement of the launching member 1436 without the help of rollers 1465a, 1465b. It may slide along the surface 1464.

In addition to the above, the knife member 1467 cuts the stapled tissue as it moves laterally through the staple cartridge 1460. The knife member 1467 is displaced along a cutting axis that traverses the longitudinal launch axis defined by the motion of the launch member 1436. The cutting axis is orthogonal to the firing axis, or at least substantially orthogonal, but any suitable arrangement can be utilized. In addition to the above, it is recalled that the cutting stroke of the knife member 1467 begins at the end of the firing stroke of driver 1462, but a delay may be provided between the cutting stroke and the firing stroke.

Many of the surgical instruments disclosed herein utilize a single launch bar to activate the staple deployment system and tissue cutting system. Such instruments may benefit from using auditory and / or tactile feedback that can inform the user of the surgical instrument of specific information about the current operating state of the surgical instrument. is there. In at least one example, the surgical instrument launch bar has a first array of teeth and a second array of teeth that can slide relative to one or more click elements within the surgical instrument handle. May include an array of teeth. During the staple firing operation of the surgical instrument, the interaction between the teeth of the first array and the click element can generate a click sound and / or vibration. The teeth of the first array can be placed on the firing bar, for example, so that feedback occurs near the end of the firing stroke. With such feedback, the surgeon slows the progression of the launch bar, for example, if it intends to at least suspend the movement of the surgical instrument between the staple launch motion mode and the tissue cutting motion mode. be able to. Alternatively, the surgeon may choose not to cut the tissue. The teeth in the second array can be placed on the cutting bar, for example, so that feedback occurs near the end of the cutting stroke. In certain embodiments, an array of teeth may be placed on the firing bar so that feedback occurs between the staple firing motion mode and the tissue cutting motion mode. The feedback described above can also be used with equipment that includes a staple launch bar and a separate tissue cutting bar.

FIGS. 61-64 disclose the surgical instrument 1500. Instrument 1500 includes a shaft 1540 and, for example, a circular end effector 1550 used for stapling and traversing lumens. [Incorporated by reference. The end effector 1550 includes a staple cartridge 1560 that includes a circular cartridge body 1561 and a plurality of staples that are detachably stored in the cartridge body 1561 in a circular arrangement. The staple cartridge 1560 further includes a staple driver 1562 configured to eject staples from the cartridge body 1561. The staple drivers 1562 are also arranged in a circular arrangement and connected to a common drive frame, but any suitable arrangement can be utilized. For example, the staple drivers 1562 may not be connected to each other. The end effector 1550 further includes a circular anvil 1570 configured to compress a portion of the lumen against the cartridge body 1561. The anvil 1570 is attached to a closing actuator 1526 that extends through the shaft 1540. The closing actuator 1526 is configured to move the anvil 1570 between the clamp position and the clamp release position in the direction towards and away from the staple cartridge 1560. Figures 61-64 all show anvil 1570 in the clamped position. The anvil 1570 further includes a circular array of forming pockets 1571 configured to deform the staples as they are ejected from the staple cartridge 1560.

The surgical instrument 1500 further comprises a cutting member 1567 configured to make an incision in the captured tissue between the anvil 1570 and the staple cartridge 1560. During use, the staple driver 1562 drives the staples against the anvil 1570 during the staple forming process (FIG. 61) and the cutting member 1567 cuts the tissue during the tissue cutting process (FIG. 63). As will be described later, embodiments in which the staple forming process and the tissue cutting process are continuous and do not overlap between them, but the staple forming process and the tissue cutting process can occur simultaneously, or at least partially simultaneously. Is also assumed.

In addition to the above, and primarily with reference to FIG. 60, when the anvil 1570 moves to its clamped position, the staple driver 1562 and cutting member 1567 are retracted in the end staple cartridge 1560 in an inactive position. Will be done. Then, as shown in FIG. 61, the staple driver 1562 and the cutting member 1567 are moved distally by the launching member 1536 during the staple forming process to deform the staples. More specifically, the distal end 1538 of the launching member 1536 engages a washer 1539 located between the launching member 1536 and the driver 1562 and the cutting member 1567, with the washer 1539 then the driver 1562. And engages with the cutting member 1567. The firing stroke of the staple driver 1562 ends when the driver 1562 contacts the proximal side surface of the cartridge body 1561. Notably, the cutting member 1567 does not come out of the cartridge body 1561 during the staple forming process. Rather, the cutting member 1567 remains positioned within the cartridge body 1561 during the staple forming process as it is moved towards the anvil 1570.

Once the staple driver 1562 is bottomed out of the cartridge body 1561, the surgeon can understand that the staple forming process is complete. At this point, the surgeon can then retract the launching member 1536 at his option, omitting the tissue cutting step. Alternatively, the surgeon may apply a pushing force to the launching member 1536 to break the washer 1539, as shown in FIG. This pushing force exceeds the force required to fire the staples. As a result, the surgeon will notice a significant increase in the force required to advance the launch member 1536 beyond the end of the staple launch stroke. If the launch member 1536 is driven by a manually operated actuator, the surgeon must voluntarily choose to increase the force exerted on the launch member 1536 in order to initiate the tissue cutting stroke. There will be. The washer 1539 may be constructed to withstand forces up to the threshold force, and if the threshold force is met or exceeded, the distal end 1538 of the launching member 1536 can be pushed through the washer 1539.

In addition to the above, in certain cases, the washer 1539 may be constructed to suddenly break, or break, when the threshold force applied to the washer 1539 is met. In at least one such case, the washer 1539 may include a weakened portion that promotes breakage of the washer 1539 in a defined area, such as an annular groove 1537. In some cases, the distal end 1538 of the launching member 1536 may include a cut portion across the washer 1539. In any case, the washer 1539 can act as a fuse that must be broken before the cutting stroke can begin.

Once the washer 1539 is broken or crossed, or otherwise broken (see FIG. 63), the washer 1539 can be pushed distally by two separate parts, namely the launching member 1536. A portion 1539a of 1 and a second portion 1539b remaining behind will be included. The groove 1537 is located between the first portion 1539a and the second portion 1539b of the washer 1539. The groove 1537 makes the washer 1539 brittle enough to break the washer 1539 when an appropriate level of force is applied to the washer 1539. In at least one case, the washer 1539 is made of, for example, plastic. The first washer portion 1539a is pushed distally by the launching member 1536 to move the cutting member 1567 distally, completing the cutting stroke of the instrument 1500.

In addition to, or in place of, the manually operated actuator, the appliance 1500 may include an electric motor configured to drive the launch member 1536. Such a system can manage at least one sensor configured to detect the load received by the launching member and, in addition, the operation of the electric motor in the light of data received from the load sensor. It is also possible to use a sensor and a controller that communicates with an electric motor. Such a system may recognize that the staple driver 1562 has run out and may suspend the electric motor in response. Such a pause may allow the surgeon to choose whether to open the anvil 1570 after the staple firing process or to instruct the controller to perform the tissue cutting process. Instrument 1500 may include, for example, a first button that can be actuated by the surgeon to open the anvil 1570 and, for example, a second button that can be actuated by the surgeon to perform the tissue cutting process. Good.

In addition to the above, each surgical instrument disclosed herein has one or more manually operated triggers and / or one or more electric motors to operate the instrument. It may include or be modified to include a motor. Surgical instruments 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1200, 1300, 1400, and 1500 transmit force between the surgical instrument closure trigger and the end effector. A manually operated closure system can be included. For example, the instrument 100 includes a manually operated closure system configured to transmit the rotation of the closure trigger 120 to the end effector 150. In an alternative embodiment, any of the appliances disclosed herein may include an electric motor configured to operate the device closure system. Similar to the above, the instrument is configured to operate the electric motor in response to one or more inputs from the surgeon and / or data received from one or more sensors on the instrument. It may further include a controlled control system.

In addition to or instead of the above, the surgical instruments 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1200, 1300, 1400, and 1500 are the firing triggers and ends of the surgical instruments. It may include a manually operated launch system that transmits force to and from the effector. For example, the appliance 100 includes a manually operated firing system configured to transmit the rotation of the firing trigger 130 to the end effector 150. In an alternative embodiment, any of the appliances disclosed herein may include an electric motor configured to operate the device launch system. Similar to the above, the instrument is configured to operate the electric motor in response to one or more inputs from the surgeon and / or data received from one or more sensors on the instrument. It may further include a controlled control system.

Surgical instruments 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1200, 1300, and 1400 are one or more important openings to access the surgical site in the patient. It will be understood by the reader that is often used during surgical procedures performed on patients. These surgical procedures are often referred to as "open" surgical procedures. The teachings provided herein are adaptable to surgical procedures in which the instrument is inserted through one or more trocars or cannulas, for example providing an access port into the patient's body through a smaller incision. Open surgical procedures often provide the surgeon with a better field of view of the surgical site, and laparoscopic surgical procedures often leave smaller scars on the patient's body. Instrument 1500 can be inserted through a natural opening, such as the patient's anus. The teachings provided herein are adaptable to surgical procedures in which the instrument is inserted through one or more natural openings in the patient.

The staples of the surgical instruments 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1200, 1300, 1400, and 1500 are defined in the longitudinal direction, i.e. by the shaft of the surgical instrument. It will be appreciated by the reader that it is deployed along the longitudinal axis, parallel to it, or substantially parallel to it. Other embodiments in which staples are deployed along one or more axes across the longitudinal axis are also recalled. Figures 64 and 65 disclose one such exemplary surgical instrument, the surgical instrument 1600. The surgical instrument 1600 comprises a staple cartridge jaw 1660 and an anvil jaw 1670. The staple cartridge jaws 1660 and / or the anvil jaws 1670 are movable to clamp tissue between them. The staple cartridge jaw 1660 includes a cartridge body 1661 containing a plurality of staple cavities defined therein. The cartridge jaw 1660 further includes a plurality of staples 1669 detachably stored in the staple cavity and a plurality of staple drivers 1662 configured to eject the staples 1669 from the staple cavities. Instrument 1600 further comprises a staple driver 1662 and a launch bar 1636 that can be moved distally to lift the staple 1669 towards the anvil jaw 1670. The anvil jaw 1670 includes a staple forming pocket 1671 configured to deform the staple 1669, as shown in FIGS. 64 and 65. The teachings provided herein are adaptable to surgical instruments such as 1600.

Surgical staple fastening systems can include a shaft and an end effector extending from the shaft. The end effector includes a first jaw portion and a second jaw portion. The first jaw comprises a staple cartridge. The staple cartridge is removable from the first jaw and is removable from the first jaw, but the staple cartridge is not removable from the first jaw, or at least not easily replaceable. Other embodiments are also recalled. The second jaw comprises an anvil configured to deform the staple ejected from the staple cartridge. The second jaw is pivotable with respect to the first jaw about the closure axis, while the first jaw is pivotable or movable with respect to the second jaw. , Other embodiments are also recalled. The surgical staple fastening system further comprises a joint that is configured to allow the end effector to rotate, or jointly, move with respect to the shaft. The end effector is rotatable about a joint motion axis that extends through the joint. Other embodiments that do not include joints are also recalled.

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

The staples are supported by a staple driver inside the cartridge body. The driver can move between the first, i.e., unlaunched position and the second, i.e., the launched position, which ejects staples from the staple cavity. The driver includes an elastic member that is held within the cartridge body by a retainer that extends around the bottom of the cartridge body and is configured to grip the cartridge body and hold the holder against the cartridge body. .. Drivers can be moved between their unlaunched positions and their launched positions by threads. The thread can move between the proximal position adjacent to the proximal end and the distal position adjacent to the distal end. The thread slides under the driver and has multiple ramps configured to lift the driver, on which staples are supported towards the anvil.

In addition to the above, the thread is moved distally by the launching member. The launching member is configured to contact the thread and push the thread towards the distal end. Longitudinal slots defined within the cartridge body are configured to accommodate launching members. The anvil also includes a slot configured to receive the launching member. The launching member further comprises a first cam that engages the first jaw and a second cam that engages the second jaw. As the launching member is advanced distally, the first and second cams can control the distance between the staple cartridge deck and the anvil, i.e. the tissue gap. The launching member also comprises a knife configured to incise the captured tissue between the staple cartridge and the anvil. It is desirable that the knife be positioned at least partially proximal to the slope so that the staples are ejected forward of the knife.

The surgical instrument system described herein has been described in connection with the deployment and deformation of staples, but the embodiments described herein are not limited thereto. Various embodiments are also conceivable in which fasteners other than staples, such as clamps or tacks, are deployed. In addition, various embodiments have been conceived that utilize any suitable means for sealing the tissue. For example, end effectors according to various embodiments may include electrodes configured to heat and seal the tissue. Also, for example, an end effector according to a particular embodiment can apply vibrational energy to seal the tissue.

Example 1-A surgical stapler for treating a patient's tissue comprises a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effector being configurable in open and closed configurations. .. The end effectors are a first jaw and a second jaw, a second jaw and staples that are movable towards the first jaw so that the end effector is in a closed configuration. The cartridge body including the cavity, the staples detachably stored in the staple cavity, and the anvil configured to deform the staples are included. The surgical stapler is a closure system and a launch system configured to move the second jaw towards the first jaw, from the staple cavity towards the anvil during the launch stroke. Launch, including a launch driver configured to eject and a cutting member that cuts tissue during a cutting stroke and retracts the cutting member during a retracting stroke. It further comprises a system and means for preventing the end effector from returning to the open configuration until the retreat stroke is completed.

Example 2-The surgical stapler according to Example 1, wherein the means allows the end effector to be returned to the open configuration during the firing stroke.

Example 3-The surgical stapler according to Example 1 or 2, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is complete and before the cutting stroke is initiated.

Example 4-A tissue pin that is movable between non-deployment positions and is configured to capture tissue within the end effector, and a tissue pin that is non-deployed during the deployment stroke. Further equipped with a tissue pin actuator, which extends between the deployment positions and is configured to pull the tissue pin towards the non-deployment position during the pull-out stroke, means that the tissue pin is pulled out during the cutting stroke. The surgical stapler according to Example 1, 2 or 3, which prevents pulling towards a non-deployment position.

Example 5-Tissue pins that are movable between non-deployment positions and are configured to capture tissue within the end effector, and non-tissue pins during the deployment stroke. It further comprises a tissue pin actuator that extends between deployment positions and is configured to pull the tissue pin towards the non-deployment position during the pull-out stroke, the means by which the tissue pin is pulled out during the firing stroke. The surgical stapler according to Example 1, 2 or 3, which prevents pulling towards a non-deployment position.

Example 6-A surgical stapler for treating patient tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effector being configured in open and closed configurations. A surgical stapler. The end effectors are a first jaw and a second jaw, a second jaw and staples that are movable towards the first jaw so that the end effector is in a closed configuration. The cartridge body including the cavity, the staples detachably stored in the staple cavity, and the anvil configured to deform the staples are included. The surgical stapler is a closure system and a launch system configured to move the second jaw towards the first jaw, from the staple cavity towards the anvil during the launch stroke. Includes a driver configured to eject and a cutting member configured to cut tissue during the cutting stroke, including a cutting edge that is exposed from the cartridge body during the cutting stroke. , A launch system and means for preventing the closure system from being returned to the open configuration while the cutting member is exposed.

Example 7-The surgical stapler according to Example 6, wherein the means allows the end effector to be returned to the open configuration during the firing stroke.

Example 8-The surgical stapler according to Example 6 or 7, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is complete and before the cutting stroke is initiated.

Example 9-The surgical stapler according to Example 6, 7, or 8, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is complete and before the cutting member is exposed.

Example 10-Tissue pins that are movable between non-deployment positions and that are configured to capture tissue within the end effector, and non-tissue pins during the deployment stroke. It further comprises a tissue pin actuator that extends between the deployment positions and is configured to pull the tissue pin towards the non-deployment position during the pull-out stroke, the means of which the cutting member is exposed. The surgical stapler according to Example 6, 7, 8 or 9, which prevents tissue pins from being pulled towards a non-deployment position in between.

Example 11-A tissue pin that is movable between non-deployment positions and is configured to capture tissue within an end effector, and a tissue pin that is not deployed during the deployment stroke. It further comprises a tissue pin actuator that extends between the deployment positions and is configured to pull the tissue pin towards the non-deployment position during the pull-out stroke, the means by which the tissue pin is pulled out during the firing stroke. The surgical stapler according to Example 6, 7, 8 or 9, which prevents pulling towards a non-deployment position.

Example 12-A surgical stapler for treating patient tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effector being configurable in open and closed configurations. A surgical stapler. The end effectors are a first jaw and a second jaw, a second jaw and staples that are movable towards the first jaw so that the end effector is in a closed configuration. The cartridge body including the cavity, the staples detachably stored in the staple cavity, and the anvil configured to deform the staples are included. The surgical stapler is a closure system configured to move the second jaw towards the first jaw, a launch system, a staple driver, and the launch system during the launch stroke. A staple driver configured to push the staple driver toward the anvil and retract the staple driver during the retracting stroke, and a cutting member configured to cut the tissue during the cutting stroke. A firing system, including a cutting member, including a cutting edge exposed from the cartridge body during the cutting stroke, and a means for preventing the staple driver from retracting while the cutting member is exposed. Further prepare.

Example 13-The surgical stapler according to Example 12, wherein the means allow the end effector to be returned to the open configuration during the firing stroke.

Example 14-The surgical stapler according to Example 12 or 13, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is complete and before the cutting stroke is initiated.

Example 15-The surgical stapler according to Example 12, 13, or 14, wherein the means allow the end effector to be returned to the open configuration after the firing stroke is complete and before the cutting member is exposed.

Example 16-Tissue pins that are movable between non-deployment positions and that are configured to capture tissue within the end effector, and non-tissue pins during the deployment stroke. Further equipped with a tissue pin actuator, which extends between the deployment positions and is configured to pull the tissue pin towards the non-deployment position during the pull-out stroke, means that the tissue pin is pulled out during the cutting stroke. The surgical stapler according to Example 12, 13, 14, or 15, which prevents pulling towards a non-deployment position.

Example 17-Tissue pins that are movable between non-deployment positions and that are configured to capture tissue within the end effector, and non-tissue pins during the deployment stroke. It further comprises a tissue pin actuator that extends between the deployment positions and is configured to pull the tissue pin towards the non-deployment position during the pull-out stroke, the means by which the tissue pin is pulled out during the firing stroke. The surgical stapler according to Example 12, 13, 14, or 15, which prevents pulling towards a non-deployment position.

Example 18-A surgical stapler for treating patient tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effector being configured in open and closed configurations. A surgical stapler. The end effector is a first jaw and a second jaw, a second jaw and a staple that is movable towards the first jaw so as to form a closed end effector. A cartridge body that includes a cavity, a staple that is detachably stored in the staple cavity, an anvil that is configured to deform the staple, and a tissue pin that is movable between the undeployed position and the deployed position. Includes tissue pins, which are configured to capture tissue within the end effector. The surgical stapler has a closure system configured to move the second jaw towards the first jaw and moves tissue pins between the undeployed and deployed positions during the deployment stroke. A tissue pin actuator configured to retract the tissue pin towards a non-deployment position during the retreat stroke, and a firing system, a staple driver, the firing system launching the staple driver during the firing stroke. A staple driver configured to push towards the anvil and a cutting member configured to cut tissue during the cutting stroke, including a cutting edge exposed from the cartridge body during the cutting stroke. It further comprises a firing system, including a cutting member, and means for preventing tissue pins from retracting while the cutting member is exposed.

Example 19-The surgical stapler according to Example 18, wherein the means allows the end effector to be returned to the open configuration during the firing stroke.

Example 20-The surgical stapler according to Example 18 or 19, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is complete and before the cutting stroke is initiated.

Example 21-The surgical stapler according to Example 18, 19, or 20, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is complete and before the cutting member is exposed.

Example 22-A surgical stapler for treating a patient's tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effectors having a first jaw and a first. A cartridge containing a second jaw and a staple cavity, which is a second jaw, one of which is movable relative to the other of the first jaw, the first jaw and one of the second jaws. A surgical stapler that includes a body, staples that are detachably stored in a staple cavity, and anvil that is configured to deform the staples. The surgical stapler further comprises a firing system configured to eject staples from the staple cavity towards the anvil during the firing stroke and to cut tissue during the cutting stroke after the firing stroke is complete.

23-Surgical stapler according to Example 22, wherein the launch system includes a launch bar, the launch bar being movable towards an end effector to make a launch stroke and a cutting stroke.

Example 24-The surgical stapler according to Example 22 or 23, further comprising a stop configured to stop the firing bar after a firing stroke.

Example 25-The surgical stapler according to Example 24, wherein the stop is manually actuated to release the launch member so that the launch member can make a cutting stroke.

Example 26-The launch system is a staple driver configured to eject staples from the staple cavity and a cutting member configured to cut tissue, moving with the staple driver during the launch stroke and firing. The surgical stapler according to Example 22, 23, 24, or 25, further comprising a cutting member that does not cut tissue during the stroke.

Example 27-The surgical stapler according to Example 26, wherein the cutting member is connected to the staple driver during the firing stroke and the cutting member is not connected to the staple driver during the cutting stroke.

Example 28-The clamp further comprises a clamp that holds the cutting member releasably to the staple driver during the firing stroke of the firing member, the clamp releasing the cutting member from the staple driver when the force transmitted through the firing member exceeds the threshold force. The surgical stapler according to Example 26 or 27, which is configured to.

Example 29-A clamp that holds the staple driver releasably to the cutting member during the firing stroke of the firing member, and a clamp that holds the clamp releasably in the clamped state during the firing stroke and urges the clamp to release during the cutting stroke. The surgical stapler according to Example 26 or 27, further comprising a clamp limiting device configured to disengage the launch member from the launch bar.

Example 30-The handle comprises a firing trigger operably linked to a firing member, the firing trigger is rotatable over a first range of motion and a second range of motion, and the firing trigger is a firing trigger having a first range of motion. When moving over one range of motion, the launching member is moved over the firing stroke, and the trigger moves the launching member over the cutting stroke when the firing trigger moves over the second range of motion, Examples 22 and 23. , 24, 25, 26, 27, 28, or 29.

Example 31-The surgical stapler according to Example 30, wherein the first range of motion is separated from the second range of motion.

Example 32-The surgical stapler according to Example 30 or 31, wherein the first and second range of motion occur during a single actuation of the firing trigger.

Example 33-The first indicator further comprises an indicator configured to provide a first indicator when the firing stroke is completed and a second indicator when the cutting stroke is completed. The surgical stapler according to Example 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, or 32, which is different from the second index.

Example 34-The first index includes one of a visual index, an auditory index, and a tactile index, and the second index is a visual index, an auditory index, and a tactile index. 33. The surgical stapler according to Example 33, comprising one of the above.

Example 35-The surgical stapler according to Example 30, wherein a first range of motion occurs during one actuation of the firing trigger and a second range of motion occurs during another actuation of the firing trigger.

Example 36-An indicator configured to provide a first indicator when one actuation of a firing trigger is complete and a second indicator when another actuation of the firing trigger is complete. Further prepared, the surgical stapler according to Example 30, wherein the first index is different from the second index.

Example 37-The launch system comprises a launch bar configured to eject staples from a staple cavity during a launch stroke and a knife bar configured to cut tissue during a cutting stroke. , 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, or 36.

Example 38-The firing system further comprises a firing trigger, the firing bar is driven towards the end effector during the firing trigger activation, and the knife bar is driven towards the end effector during the firing trigger activation. , The surgical stapler according to Example 37.

Example 39-The firing trigger shifts between a first position where the firing trigger is operably engaged with the firing bar and a second position where the firing trigger is operably engaged with the knife bar. A surgical stapler according to Example 38, which is possible.

Example 40-Ibid. 38 or 39, further comprising a switching mechanism configured to automatically shift the firing trigger after the firing stroke to disengage from engagement with the firing bar and engage with the knife bar. Surgical stapler.

Example 41-Additional 38, a switching mechanism configured to allow the firing trigger to be manually shifted after the firing stroke to disengage from engagement with the firing bar and engage with the knife bar. 39, or 40, the surgical stapler.

Example 42-The firing system further comprises a firing trigger, the firing bar is driven towards the end effector during the first activation of the firing trigger, and the knife bar is brought to the end effector during the second activation of the firing trigger. The surgical stapler according to Example 37, which is driven towards.

Example 43-The launch system is operably engaged with the launch bar and the activation of the launch trigger moves the launch bar over the launch stroke. The surgical stapler according to Example 37, further comprising a cutting trigger, wherein the operation of the cutting trigger moves the knife bar over the cutting stroke.

Example 44-The launch system operates the surgical stapler after the launch stroke is complete so that the user of the surgical stapler can optionally choose whether or not to make a cutting stroke with the surgical stapler. Examples 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, which are further configured to pause. , 41, 42, or 43.

Example 45-A surgical stapler for treating a patient's tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effectors having a first jaw and a first jaw. A cartridge containing a second jaw and a staple cavity, which is a second jaw, one of which is movable relative to the other of the first jaw, the first jaw and the second jaw. A surgical stapler that includes a body, staples that are detachably stored in a staple cavity, and anvil that is configured to deform the staples. The surgical stapler operably engages with a firing bar configured to eject staples from the staple cavity during the firing stroke and a knife bar configured to cut tissue during the cutting stroke. A fired trigger, the firing trigger actuating to move the firing bar over the firing stroke, the firing trigger and the cutting trigger operably engaged with the knife bar, the cutting trigger actuating the cutting stroke of the knife bar. It further comprises a disconnection trigger that moves over.

Example 46-A surgical stapler for treating a patient's tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effector comprising a first jaw and a first jaw. A cartridge containing a second jaw and a staple cavity, which is a second jaw, one of which is movable relative to the other of the first jaw, the first jaw and the second jaw. A surgical stapler that includes a body, staples that are detachably stored in a staple cavity, and anvil that is configured to deform the staples. The surgical stapler consists of a launch system configured to eject staples from the staple cavity towards the anvil during the launch stroke, a cutting system configured to cut tissue during the cutting stroke, and a launch system. Further provided are means for preventing the cutting system from making a cutting stroke until the firing stroke is completed.

Example 47-A surgical stapler for treating a patient's tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft. The end effectors are a first jaw and a second jaw, one of the first jaw and the second jaw being movable relative to the other of the first jaw. It includes a second jaw, a cartridge body that includes a staple cavity, a staple that is detachably stored in the staple cavity, and an anvil that is configured to deform the staple. The surgical stapler is a surgical instrument and a firing system configured to eject staples from the staple cavity towards the anvil during the firing stroke and to cut tissue during the cutting stroke after the firing stroke is complete. Further provided are means for allowing the user to choose whether or not to make a cutting stroke with a surgical stapler after the firing stroke.

Example 48-The surgical stapler according to Example 47, further comprising a feedback means to indicate when the firing stroke is complete.

Example 49-The surgical stapler according to Example 47 or 48, further comprising feedback means to indicate when the launch system is approaching the end of the launch stroke.

Example 50-The surgical stapler according to Example 47, 48, or 49, further comprising feedback means to indicate when the cutting stroke is complete.

Example 51-The surgical stapler according to Example 47, 48, 49, or 50, further comprising feedback means to indicate when the launch system is approaching the end of the cutting stroke.

Example 52-A visual indicator bar further comprising a first range and a second range, the first range displaying the progress of the firing stroke and the second range displaying the progress of the cutting stroke. , A surgical stapler according to Example 47, 48, 49, 50, or 51.

Example 53-Means include a stop configured to stop the firing system after a firing stroke, the stop being selectively releasable by the user of the surgical stapler, Examples 47, 48, 49, 50, 51, or 52. The surgical stapler.

Example 54-A surgical stapler for treating a patient's tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effector comprising a first jaw and a first jaw. A cartridge containing a second jaw and a staple cavity, which is a second jaw, one of which is movable relative to the other of the first jaw, the first jaw and one of the second jaws. A surgical stapler that includes a body, staples that are detachably stored in a staple cavity, and anvil that is configured to deform the staples. The surgical stapler is configured to eject staples from the staple cavity towards the anvil during the firing stroke and to cut tissue during the cutting stroke after the firing stroke is complete. It further comprises a cutting system and means for suspending the surgical stapler so that the user of the surgical stapler can choose whether or not to make a cutting stroke with the surgical stapler.

Example 55-The surgical stapler according to Example 54, further comprising a feedback means to indicate when the firing stroke is complete.

Example 56-The surgical stapler according to Example 54 or 55, further comprising feedback means to indicate when the launch system is approaching the end of the launch stroke.

Example 57-The surgical stapler according to Example 54, 55, or 56, further comprising feedback means to indicate when the cutting stroke is complete.

Example 58-The surgical stapler according to Example 54, 55, 56, or 57, further comprising feedback means to indicate when the cutting system is approaching the end of the cutting stroke.

Example 59-A visual indicator bar further comprising a first range and a second range, the first range displaying the progress of the firing stroke and the second range displaying the progress of the cutting stroke. , A surgical stapler according to Example 54, 55, 56, 57, or 58.

Example 60-A launch system is a launch trigger and a launch bar operably engaged with the launch trigger, wherein the activation of the launch trigger advances the launch member towards the end effector during the launch stroke. The surgical stapler according to Example 54, 55, 56, 57, 58, or 59, comprising a bar and a tactile feedback generator engaged with a firing bar.

Example 61-The surgical stapler according to Example 60, wherein the tactile feedback generator is configured to generate a series of sounds that gradually increase as the firing stroke progresses.

Example 62-The surgical stapler according to Example 60 or 61, wherein the tactile feedback generator is silent during the first portion of the firing stroke and audible during the second portion of the firing stroke. ..

Example 63-The surgical stapler according to Example 60, 61, or 62, wherein the tactile feedback generator is configured to generate a series of sounds at an increasing rate as the firing stroke progresses.

Example 64-The surgical stapler according to Example 60, 61, 62, or 63, wherein the tactile feedback generator produces tactile feedback when the firing bar reaches the end of its firing stroke.

Example 65-Means include a stop configured to stop the firing system after a firing stroke, the stop being selectively releasable by the user of the surgical stapler, Examples 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, or 64. The surgical stapler.

Example 66-A surgical stapler for treating a patient's tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effectors having a first jaw and a first jaw. A cartridge containing a second jaw and a staple cavity, which is a second jaw, one of which is movable relative to the other of the first jaw, the first jaw and one of the second jaws. A surgical stapler that includes a body, staples that are detachably stored in a staple cavity, and anvil that is configured to deform the staples. The surgical stapler is configured to eject staples from the staple cavity towards the anvil during the firing stroke and to cut tissue during the cutting stroke after the firing stroke is complete. It further comprises a cutting system and a feedback generator configured to indicate a shift between firing strokes and cutting strokes.

Example 67-A surgical stapler for treating patient tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effector being configurable in open and closed configurations. A surgical stapler. The end effectors are a first jaw and a second jaw, a second jaw and staples that are movable towards the first jaw so that the end effector is in a closed configuration. The cartridge body including the cavity, the staples detachably stored in the staple cavity, and the anvil configured to deform the staples are included. The surgical stapler is a closure system configured to move the second jaw towards the first jaw, a launch system, a staple driver, and the launch system during the launch stroke. A stapler that pushes the stapler toward the anvil and retracts the stapler during the retreat stroke, and a cutting member that is configured to cut tissue during the cutting stroke. It further comprises a firing system, including a cutting member, including a cutting edge exposed from the cartridge body during the cutting stroke. The surgical stapler is configured to prevent the staple driver from retracting during the firing stroke and to overcome the lockout so that the staple driver can retract during the firing stroke. It is further equipped with a bypass.

Example 68-A surgical stapler for treating patient tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effector being configured in open and closed configurations. A surgical stapler. The end effectors are a first jaw and a second jaw, a second jaw and staples that are movable towards the first jaw so that the end effector is in a closed configuration. The cartridge body including the cavity, the staples detachably stored in the staple cavity, and the anvil configured to deform the staples are included. The surgical stapler is a closure system configured to move the second jaw towards the first jaw, a launch system, a staple driver, and the launch system during the launch stroke. A stapler that pushes the stapler toward the anvil and retracts the stapler during the retreat stroke, and a cutting member that is configured to cut tissue during the cutting stroke. It further comprises a firing system, including a cutting member, including a cutting edge exposed from the cartridge body during the cutting stroke. This surgical stapler has a lock configured to prevent the staple driver from retracting before the completion of the cutting stroke and overcoming the lock so that the staple driver can retract before the completion of the cutting stroke. It further comprises a configured bypass.

Example 69-A surgical stapler for treating patient tissue, comprising a handle, a shaft extending from the handle, and an end effector extending from the shaft, the end effector being configurable in open and closed configurations. A surgical stapler. The end effectors are a first jaw and a second jaw, a second jaw and staples that are movable towards the first jaw so that the end effector is in a closed configuration. The cartridge body including the cavity, the staples detachably stored in the staple cavity, and the anvil configured to deform the staples are included. The surgical stapler is a closure system configured to move the second jaw towards the first jaw, a launch system, a staple driver, and the launch system during the launch stroke. A stapler that pushes the stapler toward the anvil and retracts the stapler during the retreat stroke, and a cutting member that is configured to cut tissue during the cutting stroke. It further comprises a firing system, including a cutting member, including a cutting edge exposed from the cartridge body during the cutting stroke. The surgical stapler is configured to have a lockout configured to prevent the cutting member from retracting during the cutting stroke and to overcome the lockout so that the cutting member can retract during the cutting stroke. It also has a bypass.

The entire contents of the following disclosure are incorporated herein by reference. That is,
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Although various embodiments of the device have been described herein in connection with the particular disclosed embodiments, many modifications and modifications can be made to those embodiments. Also, although the material is disclosed for a particular component, other materials may be used. Further, according to various embodiments, a single component may be replaced by a plurality of components, or a plurality of components may be replaced by a single component in order to perform a given function. .. The above description and the following claims are intended to include all such amendments and changes.

The devices disclosed herein can be designed to be discarded after a single use, or can be designed to be used multiple times. However, in either case, the device can be readjusted for reuse after at least one use. The readjustment can include any combination of a device disassembly step, a subsequent cleaning or replacement step of a particular part, and a subsequent reassembly step. In particular, the device is disassembled and any number of specific parts or parts of the device can be selectively replaced or removed in any combination. After cleaning and / or replacing certain parts, the device can be reassembled for later use by the surgical team at a readjustment facility or shortly before a surgical procedure. Those skilled in the art will appreciate that readjustment of the device can utilize a variety of techniques for disassembly, cleaning / replacement, and reassembly. The use of such techniques and the resulting readjusted devices are all within the scope of the present invention.

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

Although the present invention has been described as having a representative design, the present invention may be further modified within the spirit and scope of the present disclosure. Accordingly, this application shall include any modification, use, or adaptation of the invention that uses its general principles.

In whole or in part, any patent, publication or other disclosure referred to herein by reference is incorporated into an existing definition, description, or disclosure. It is incorporated herein by reference only to the extent that it is consistent with the other disclosures. As such, and to the extent necessary, the disclosures expressly set forth herein shall supersede any contradictory statements incorporated herein by reference. Any document, or portion thereof, that is incorporated herein by reference but is inconsistent with existing definitions, descriptions, or other disclosed documents described herein is in reference and existing. It shall be incorporated only to the extent that there is no contradiction with the disclosed content.

[Implementation]
(1) A surgical stapler for treating a patient's tissue.
With the handle
The shaft extending from the handle and
An end effector extending from the shaft, which can be configured in an open configuration and a closed configuration.
The first jaw and
A second jaw that is movable towards the first jaw so that the end effector has the closed configuration.
The cartridge body including the staple cavity and
With the staples detachably stored in the staple cavity,
Anvils configured to deform the staples,
Including, with end effectors,
A closure system configured to move the second jaw towards the first jaw.
It ’s a launch system,
A launch driver configured to eject the staple from the staple cavity towards the anvil during the launch stroke.
A cutting member that cuts tissue during a cutting stroke and is configured to retract the cutting member during a retreating stroke.
Including the launch system and
A means for preventing the end effector from returning to the open configuration until the retreat stroke is completed, and
A surgical stapler equipped with.
(2) The surgical stapler according to embodiment 1, wherein the means allows the end effector to be returned to the open configuration during the firing stroke.
(3) The surgical stapler according to embodiment 1, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is completed and before the cutting stroke is initiated.
(4) Tissue pins that are movable between non-deployment positions and are configured to capture tissue within the end effector.
A tissue pin actuator configured to extend the tissue pin between the non-deployment position and the deployment position during the deployment stroke and to pull the tissue pin towards the non-deployment position during the withdrawal stroke. Further provided, the surgical stapler according to embodiment 1, wherein the means prevents the tissue pin from being pulled towards the non-deployment position during the cutting stroke.
(5) Tissue pins that are movable between non-deployment positions and are configured to capture tissue within the end effector.
A tissue pin actuator configured to extend the tissue pin between the non-deployment position and the deployment position during the deployment stroke and to pull the tissue pin towards the non-deployment position during the withdrawal stroke. Further provided, the surgical stapler according to embodiment 1, wherein the means prevents the tissue pin from being pulled towards the undeployed position during the firing stroke.

(6) A surgical stapler for treating a patient's tissue.
With the handle
The shaft extending from the handle and
An end effector extending from the shaft, which can be configured in an open configuration and a closed configuration.
The first jaw and
A second jaw that is movable towards the first jaw so that the end effector has the closed configuration.
The cartridge body including the staple cavity and
With the staples detachably stored in the staple cavity,
Anvils configured to deform the staples,
Including, with end effectors,
A closure system configured to move the second jaw towards the first jaw.
It ’s a launch system,
A driver configured to eject the staple from the staple cavity towards the anvil during the firing stroke.
A cutting member configured to cut tissue during the cutting stroke, including a cutting edge exposed from the cartridge body during the cutting stroke.
Including the launch system and
Means for preventing the closure system from returning to the open configuration while the cutting member is exposed.
A surgical stapler equipped with.
(7) The surgical stapler according to embodiment 6, wherein the means allows the end effector to be returned to the open configuration during the firing stroke.
(8) The surgical stapler according to embodiment 6, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is completed and before the cutting stroke is initiated.
(9) The surgical stapler according to embodiment 6, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is complete and before the cutting member is exposed.
(10) Tissue pins that are movable between non-deployment positions and are configured to capture tissue within the end effector.
A tissue pin actuator configured to extend the tissue pin between the non-deployment position and the deployment position during the deployment stroke and to pull the tissue pin towards the non-deployment position during the withdrawal stroke. The surgical stapler according to embodiment 6, wherein the means further comprises preventing the tissue pin from being pulled out toward the non-deployment position while the cutting member is exposed.

(11) A tissue pin that is movable between a non-deployed position and a deployed position and is configured to capture the tissue within the end effector.
A tissue pin actuator configured to extend the tissue pin between the non-deployment position and the deployment position during the deployment stroke and to pull the tissue pin towards the non-deployment position during the withdrawal stroke. The surgical stapler according to embodiment 6, wherein the means further comprises preventing the tissue pin from being pulled towards the undeployed position during the firing stroke.
(12) A surgical stapler for treating a patient's tissue.
With the handle
The shaft extending from the handle and
An end effector extending from the shaft, which can be configured in an open configuration and a closed configuration.
The first jaw and
A second jaw that is movable towards the first jaw so that the end effector has the closed configuration.
The cartridge body including the staple cavity and
With the staples detachably stored in the staple cavity,
Anvils configured to deform the staples,
Including, with end effectors,
A closure system configured to move the second jaw towards the first jaw.
It ’s a launch system,
A staple driver that is configured such that the firing system pushes the staple driver toward the anvil during the firing stroke and retracts the staple driver during the retreating stroke.
A cutting member configured to cut tissue during the cutting stroke, including a cutting edge exposed from the cartridge body during the cutting stroke.
Including the launch system and
A means for preventing the staple driver from retracting while the cutting member is exposed, and
A surgical stapler equipped with.
(13) The surgical stapler according to embodiment 12, wherein the means allows the end effector to be returned to the open configuration during the firing stroke.
(14) The surgical stapler according to embodiment 12, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is completed and before the cutting stroke is initiated.
(15) The surgical stapler according to embodiment 12, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is complete and before the cutting member is exposed.

(16) Tissue pins that are movable between non-deployment positions and that are configured to capture tissue within the end effector.
A tissue pin actuator configured to extend the tissue pin between the non-deployment position and the deployment position during the deployment stroke and to pull the tissue pin towards the non-deployment position during the withdrawal stroke. The surgical stapler according to embodiment 12, wherein the means further comprises preventing the tissue pin from being pulled towards the non-deployment position during the cutting stroke.
(17) Tissue pins that are movable between non-deployment positions and are configured to capture tissue within the end effector.
A tissue pin actuator configured to extend the tissue pin between the non-deployment position and the deployment position during the deployment stroke and to pull the tissue pin towards the non-deployment position during the withdrawal stroke. Further provided, the surgical stapler according to embodiment 12, wherein the means prevents the tissue pin from being pulled towards the non-deployment position during the firing stroke.
(18) A surgical stapler for treating a patient's tissue.
With the handle
The shaft extending from the handle and
An end effector extending from the shaft, which can be configured in an open configuration and a closed configuration.
The first jaw and
A second jaw that is movable towards the first jaw so that the end effector has the closed configuration.
The cartridge body including the staple cavity and
With the staples detachably stored in the staple cavity,
Anvils configured to deform the staples,
Tissue pins that are movable between undeployed and deployed positions and are configured to capture tissue within said end effector.
Including, with end effectors,
A closure system configured to move the second jaw towards the first jaw.
With a tissue pin actuator configured to move the tissue pin between the non-deployed position and the deployed position during the deployment stroke and retract the tissue pin towards the non-deployment position during the retract stroke. ,
It ’s a launch system,
A staple driver, wherein the firing system is configured to push the staple driver towards the anvil during a firing stroke.
A cutting member configured to cut tissue during the cutting stroke, including a cutting edge exposed from the cartridge body during the cutting stroke.
Including the launch system and
A means for preventing the tissue pin from retracting while the cutting member is exposed, and
A surgical stapler equipped with.
(19) The surgical stapler according to embodiment 18, wherein the means allows the end effector to be returned to the open configuration during the firing stroke.
(20) The surgical stapler according to embodiment 18, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is completed and before the cutting stroke is initiated.

(21) The surgical stapler according to embodiment 18, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is complete and before the cutting member is exposed.

Claims (5)

A surgical stapler for treating patient tissue
With the handle
The shaft extending from the handle and
An end effector extending from the shaft, which can be configured in an open configuration and a closed configuration.
The first jaw and
A second jaw that is movable towards the first jaw so that the end effector has the closed configuration.
The cartridge body including the staple cavity and
With the staples detachably stored in the staple cavity,
Anvils configured to deform the staples,
Including, with end effectors,
A closure system configured to move the second jaw towards the first jaw , the closure system including a closure bar, the closure bar advancing distally. The second jaw is moved toward the first jaw, retracted to the proximal side, and the second jaw is moved away from the first jaw. , Closing system ,
Tissue pins that are movable between undeployed and deployed positions and are configured to capture tissue within said end effector.
A tissue pin actuator configured to extend the tissue pin between the non-deployed position and the deployed position during the deployment stroke and to pull the tissue pin towards the non-deployment position during the withdrawal stroke.
It ’s a launch system,
A launch driver configured to eject the staple from the staple cavity towards the anvil during the launch stroke.
A cutting member that cuts tissue during a cutting stroke and is configured to retract the cutting member during a retreating stroke.
Including the launch system and
It prevents the end effector from returning to the open configuration until the retreat stroke is completed , and the tissue pin is directed to the undeployed position between at least one of the cutting stroke and the firing stroke. As a means to further prevent it from being pulled out ,
Bei to give a,
The closure bar includes a drive pin that extends laterally from the closure bar, the drive pin being distal to engage the tissue pin actuator from a proximal position disengaged from the tissue pin actuator. A surgical actuator configured to move to a position and advance the tissue pin distally by advancing the closure bar distally . The surgical stapler of claim 1, wherein the means allows the end effector to be returned to the open configuration during the firing stroke. The surgical stapler according to claim 1, wherein the means allows the end effector to be returned to the open configuration after the firing stroke is completed and before the cutting stroke is initiated. Before SL means preventing the tissue pins during the cutting stroke is drawn toward the non-deployed position, surgical stapler of claim 1. Before SL means preventing the tissue pins during the firing stroke is drawn toward the non-deployed position, surgical stapler of claim 1.

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