Abstract: A stapling assembly includes a cartridge, an anvil, and an adjunct. The cartridge has rows of staples disposed therein for deployment into tissue. The cartridge includes a knife slot extending therethrough between the rows for receiving a knife to cut tissue. The anvil is positioned opposite the cartridge. The adjunct is releasably retained on the cartridge or the anvil. The adjunct can be delivered to tissue by deployment of the staples from the cartridge. The adjunct can have a first shape, and a first adjunct portion can exhibit first expansion behavior in response to receipt of a volume of fluid, and a second adjunct portion can exhibit second expansion behavior in response to receipt of the volume of fluid such that the adjunct adopts a second shape. The difference between the first and second expansion behavior applies different pressures to different portions of tissue having the adjunct stapled thereto.

Abstract: A surgical stapling instrument comprising an elongate shaft assembly that includes a surgical end effector that is operably coupled thereto by an articulation joint. The surgical instrument may include a first distal articulation driver operably coupled to the surgical end effector and a second distal articulation driver that is coupled to the surgical end effector. At least one driver member may operably engage the first and second distal articulation drivers such that when the first distal articulation driver is moved in a distal direction, the least one driver moves the second distal articulation driver in a proximal direction and when the first distal articulation driver is moved in the proximal direction, the at least one driver member moves the second distal articulation driver in the distal direction.

Abstract: A surgical instrument includes a first jaw defining a channel, a second jaw including an anvil plate, a staple cartridge, and a drive beam. The staple cartridge is received in the channel and includes a sled, a knife blade, a plurality of staple pushers, and a plurality of staples. The sled is movable into engagement with the staple pushers to eject the staples from the staple cartridge. The knife blade is secured to the sled and is movable between raised and lowered positions.

Abstract: Disclosed is a surgical instrument having an interlock mechanism, and the surgical instrument includes a handle portion having a handle housing; an elongated body, defining a longitudinal axis of the instrument; an end effector, arranged on distal portion of the elongated body for operating tissues; a rotatable sleeve, circumferentially fixed with proximal portion of the elongated body and provided with a plurality of teeth; a rotatable knob, operatively to be reciprocated along the longitudinal axis; and an articulation gear assembly including an annular gear and a planet gear assembly.

Abstract: An applicator instrument for dispensing surgical fasteners includes a housing, and an elongated shaft extending from the housing. The elongated shaft has a proximal end secured to the housing, a distal end spaced from the proximal end, and a first axis extending between the proximal and distal ends of the elongated shaft. Surgical fasteners are disposed in the elongated shaft. The surgical fasteners are stacked at an angle relative to the first axis of the elongated shaft. A distal end cap having a surgical fastener dispensing window is secured to the distal end of the elongated shaft. The applicator instrument has a firing system disposed in the housing, and an actuator coupled with the firing system for activating the firing system to dispense the surgical fasteners through the surgical fastener dispensing window.

Abstract: A surgical stapler has a tool assembly including an anvil and a staple cartridge having a series of staples which are supported and configured to be rotatably ejected from the staple cartridge into the anvil to suture tissue. In embodiments, the surgical stapler includes a cartridge that supports a plurality of rotatable pushers. Each pusher supports a curved, substantially U-shaped staple having a single tissue penetrating distal leg portion and a proximal leg portion. The pusher is rotatable to drive the distal leg portion into an anvil to deform the staple into a substantially D-shaped configuration.

Abstract: A method of dispensing surgical fasteners includes providing an applicator instrument having a housing with a cartridge opening, an elongated shaft extending from the housing, a firing system disposed within the housing for dispensing surgical fasteners, and an actuator for activating the firing system. The method includes forming a surgical opening in tissue, inserting a distal end of the elongated shaft into the surgical opening, inserting a cartridge containing a plurality of first surgical fasteners into the cartridge opening, and engaging the actuator for dispensing one of the first surgical fasteners from the distal end of the elongated shaft.

Abstract: A staple cartridge for use with a stapling device that has an actuator that is selectively actuatable in an axial direction and an anvil portion that is selectively movable between open and closed positions is disclosed. Various embodiments of the present invention include a cartridge body that movably supports first and second staple drivers. The staple drivers each support a staple thereon and serve to drive the staples into forming contact with the anvil upon actuation by the actuator. The various embodiments of the present invention enable the final formed heights of the staples to be varied so as to apply various clamping forces and pressures to soft tissue captured within the staples. In at least one embodiment, the staples can include crowns formed thereon which can be utilized to adjust or control the clamping force and/or pressure applied by the staples.

Abstract: An anvil assembly includes a circular anvil head that supports a crush ring, an anvil cap that supports an o-ring, and a circular anvil buttress member. The cap connects to the head and is movable relative to the head between approximated and unapproximated positions. The crush ring is spaced from the cap when the cap is in the approximated position and movable into engagement with the cap to move the cap to the unapproximated position. The buttress member includes a body portion and an extension portion. The body portion is supported on the head and the extension portion is secureable between the o-ring and the head when the cap is in the approximated position. The extension portion is releasable from between the o-ring and the head when the cap is disposed in the unapproximated position so that the body portion separates from the head.

Abstract: A surgical instrument includes a sled and an end effector. The end effector includes a first jaw, a second jaw movable relative to the first jaw, an anvil, and a cartridge channel. The staple cartridge includes a proximal end, a distal end, a cartridge body, and staples supported in the cartridge body, wherein the sled is movable to deploy the staples from the cartridge body against tissue captured between the staple cartridge and the anvil. The cartridge channel is configured to removably retain the staple cartridge, wherein a load is required to remove the staple cartridge from the cartridge channel, and wherein the sled is configured to reduce the cartridge removal load.

Abstract: A surgical instrument comprising an articulatable end effector that is attached to an elongate shaft at an articulation joint. The end effector comprises a first jaw and a second jaw that is movably supported relative to the first jaw between an open position and a closed position. The instrument also includes a rotary closure shaft that operably interfaces with a closure assembly located distal to the articulation joint. The closure assembly interfaces with the second jaw and is configured to move axially in response to rotary closure motions applied thereto by the rotary closure shaft. Axial movement of the closure assembly results in an application of pivotal closure motions to the second jaw to move the second jaw between the open position and the closed position.

Abstract: A surgical stapler includes a first elongate member, a second elongate member, a clamp member, and a firing assembly. The first elongate member includes a distal portion that supports an anvil surface that includes a plurality of staple forming pockets. The second elongate member includes a distal portion that is configured to receive a staple cartridge. The clamp member is operable to releasably clamp the first elongate member against the second elongate member. The firing assembly is translatable from a first longitudinal position to a second longitudinal position to fire the staple cartridge. The firing assembly includes a slider and an actuator. The slider includes a first coupling feature. The actuator is configured to be selectively actuated by a user. The actuator includes a second coupling feature that is configured to generally surround the first coupling feature of the slider when the actuator moves relative to the slider.

Abstract: A staple cartridge for use with a surgical instrument is disclosed. The staple cartridge comprises an elongate slot, a deck surface, and a row of staple cavities. Each staple cavity comprises proximal and distal ends. The distal end is closer to the elongate slot than the proximal end. A firing member is configured to drive the staple drivers from an unfired position to a fired position. The distal end of the staple cavity is aligned with a first end of a staple driver, and the proximal end of the staple cavity is aligned with a second end of the staple driver. The first end of the staple driver extends a first distance above the deck surface and the second end of the staple driver extends a second distance above the deck surface when the staple driver is in the fired position. The first distance is different than the second distance.

Abstract: A staple cartridge comprising a deformable authentication key that is movable between a first state and a second state is disclosed. The authentication key is configured to operably engage a lockout of a surgical stapling device when the staple cartridge is inserted into the surgical stapling device in an initial insertion position. When the cartridge is seated in a final position within the device, the authentication key is deformed from the first state to the second state and moves the lockout from a locked position to an unlocked position.

Abstract: A system for preventing unwanted tissue migration in surgical staplers includes a surgical stapler having an end effector including an upper jaw and a lower jaw. A distal end of the upper jaw is connected to a distal end of the lower jaw, and a proximal end of the upper jaw is connected to a proximal end of the lower jaw. First and second tissue stops are formed on the distal and proximal ends of the lower jaw, respectively. The second tissue stop and the proximal end of the upper jaw define a no cut zone when the surgical stapler is in an open position. The surgical stapler also includes a tissue cutting device disposed within the lower jaw for resecting tissue. The system also includes a warning, blocking, impeding, or barrier forming device for preventing the unwanted migration of tissue into the no tissue zone.

Abstract: A surgical instrument comprising an adjustment system is disclosed.

Abstract: A tool assembly includes first and second jaws, and a clamp assembly having a body portion and first and second beams that are engaged with the first and second jaws. The clamp assembly is movable in relation to the first and second jaws to move the tool assembly from an open position to a clamped position. One of the first or second beams is pivotably coupled to the body portion of the clamp assembly such that the beam can be engaged with the pivotable jaw of the tool assembly when the jaw is in an open position. This allows the clamp assembly to be positioned between the jaws when the tool assembly is in the open position to minimize dead space within the tool assembly.

Abstract: Adjuncts for use with a surgical stapler are provided. In one exemplary embodiment, an adjunct can include a first knitted layer, a second knitted layer, and a plurality of recesses that extend into and defined within the second knitted layer. The plurality of recesses can be arranged in a predefined pattern that coincides with a plurality of attachment features extending outward from a top surface of a cartridge such that each recess of the plurality of recesses is configured to engage with at least a portion of at least one attachment feature to form a friction fit therebetween to thereby retain the adjunct on the cartridge prior to staple deployment. Stapling assemblies for use with a surgical stapler are also provided.

Abstract: A stapling device including a replaceable loading unit is provided. The loading unit includes an elongated body and a stapling assembly having a first jaw and a second jaw. The first jaw of the stapling assembly includes an anvil assembly. The second jaw of the stapling assembly includes a releasably mounted cartridge assembly having a detent connection with the stapling assembly. Also provided is a tool for removing facilitating the separation of a replaceable cartridge assembly from a loading unit.

Abstract: A staple cartridge for use with a surgical instrument is disclosed. The staple cartridge comprises an elongate slot extending from a proximal end toward a distal end, wherein the elongate slot defines a longitudinal axis, a cartridge body, and a deck surface. The staple cartridge further comprises a first longitudinal row of staple cavities defined in the cartridge body, wherein the first longitudinal row of staple cavities extends alongside the elongate slot. First cavity extenders protrude above said deck surface, wherein each first cavity extender surrounds a first section of a staple cavity from the first longitudinal row. The staple cartridge further comprises a second longitudinal row extending alongside the first longitudinal row of staple cavities. Second cavity extenders protrude above the deck surface, wherein each second protrusion surrounds a second section of a staple cavity from the second longitudinal row. The second section is different than the first section.

Abstract: A surgical device for enabling gastrointestinal anastomosis using one or more tissue couplers, the device comprising a first working element and a second working element, the first working element being displace ably arranged with respect to the second working element so that at least a first relative stand and a second relative stand between the first working element and a second working element are provided, wherein in the first relative stand a coupling space is provided between the first working element and the second working element, for receiving a first tissue portion and a second tissue portion for coupling, wherein in the second stand the first working element cooperates with the second working element for depositing one or more couplers in the said coupling space, for achieving said coupling along a coupling region, wherein the first working element and/or the second working element comprise one or more first couplers and one or more second couplers, wherein the one or more first couplers define a t

Abstract: The present disclosure is directed to an endoscopic surgical stapler having an articulation locking mechanism that functions to prevent straightening of a tool assembly of the surgical stapler when the surgical stapler is fired with the tool assembly in an articulated position. In embodiments, a mounting assembly supports a notched member on a proximal end of the tool assembly and the notched member defines a series of notches. An articulation member supported adjacent to the mounting assembly includes a locking member defining protrusions or teeth that are movable from a first unlocked position spaced from the notches of the mounting assembly to a second locked position received within the notches to lock the tool assembly in one of a plurality of articulated positions. In embodiments, the locking member is biased towards the unlocked position by a biasing member and is urged toward and retained in the locked position via engagement with a drive assembly of the surgical stapler.

Abstract: A surgical instrument comprises a body, shaft, and end effector. The shaft couples the end effector and body together. The end effector comprises an anvil and lower jaw configured to receive a surgical staple cartridge. The anvil is configured to pivot toward and away from the staple cartridge and lower jaw. The shaft assembly comprises a knife member configured to longitudinally translate to thereby substantially simultaneously cut clamped tissue and staple the severed tissue. The end effector may comprise lockout features configure to prevent longitudinal translation of the knife member. The end effector or staple cartridge may comprise lockout bypass features configured to prevent lockout of the knife member. These lockout bypass features may operate to permit longitudinal translation of the knife member once or multiple times. The end effector may comprise features configured to ensure proper alignment of the anvil relative to the staple cartridge.

Abstract: A surgical instrument for applying fasteners includes a drive motor, a replaceable loading unit having an end-effector assembly, and an adapter configured to releasably couple a replaceable loading unit to the drive motor. The adapter includes a strain gauge having a drive circuit coupled thereto. The strain gauge and the drive circuit are configured to directly measure a driving force in the adapter.

Abstract: A loading unit of a powered surgical stapling instrument includes anvil and cartridge assemblies. The anvil assembly includes a first tissue contacting surface, and the cartridge assembly includes a second tissue contacting surface, a first plurality of staples, a second plurality of staples, and a plurality of pushers. The second tissue contacting surface defines a knife channel partitioning the second tissue contacting surface into first and second portions. Each of the first and second portions includes an inner tissue contacting surface and an outer tissue contacting surface. The inner tissue contacting surface defines a first row of retention slots. The inner tissue contacting surface and the first tissue contacting surface define a first tissue gap. The outer tissue contacting surface defines a second row of retention slots. The outer tissue contacting surface and the first tissue contacting surface define a second tissue gap larger than the first tissue gap.

Abstract: A surgical stapling assembly is disclosed. The surgical stapling assembly comprises a stapling instrument configured to receive a staple cartridge therein. The stapling instrument comprises a first jaw, a second jaw movable relative to the first jaw, a firing member configured to push a sled to deploy staples, and a lockout configured to prevent the firing member from advancing distally when the staple cartridge is not properly seated within the stapling instrument and when the sled of the staple cartridge is not in an unfired position, wherein a lockout key of the staple cartridge defeats a first stage of the lockout when the staple cartridge is fully seated in the stapling instrument, and wherein the sled defeats a second stage of the lockout when the sled is in the unfired position and the staple cartridge is fully seated in the stapling instrument.

Abstract: A handle assembly includes a trigger assembly, a motor, and a drive assembly. The trigger assembly includes a trigger, a head portion, and a deflection member interconnecting the trigger and the head portion such that a load applied to the trigger causes the deflection member to flex to define a gap between the trigger and the head portion. The motor is configured to be activated based on a size of gap defined by the trigger and the head portion. The drive assembly includes a clamping gear, a firing gear assembly, a drive gear, and a rack. When a button of the trigger assembly engages the clamping gear, actuation of the trigger advances the rack by a first distance, and when the button engages the firing gear assembly, actuation of the trigger advances the rack by a second distance greater than the first distance.

Abstract: A shaft assembly for a surgical instrument that includes a movable drive member. In at least one form, the surgical instrument includes a spine assembly that is couplable to the surgical instrument and has a surgical end effector coupled thereto by an articulation joint. The shaft assembly in one form includes a proximal firing member and an intermediate firing member that is coupled to a distal firing member. The distal firing member is configured for selective travel through the surgical end effector. At least one articulation driver is coupled to the surgical end effector to apply articulation motions thereto. A clutch assembly interfaces with the primary and intermediate firing members and the articulation driver such that when in an articulation orientation, movement of the drive member results in movement of the articulation driver and when in a firing orientation, movement of the drive member results in movement of the intermediate and distal firing members.

Abstract: A handle assembly of a hand-held surgical instrument includes a handle housing, a rack supported in the handle housing and configured to operably couple to a driven member of a surgical end effector, an idler pinion gear operably coupled to the rack, and an output pinion gear drivingly coupled to a motor. The output pinion gear translates the rack via the idler pinion gear.

Abstract: A surgical instrument is disclosed comprising an end effector including a first jaw and a second jaw, wherein the first jaw is rotatable relative to the second jaw, and a closure system configured to close the first jaw during a closure stroke. The surgical instrument further comprises an articulation joint rotatably connecting the end effector to the shaft, an articulation system configured to articulate the end effector relative to the shaft, and a firing system operably engaged with the electric motor, wherein the firing member is configured to move through the end effector during a firing stroke. The surgical instrument further comprises a first rotatable member configured to selectively synchronize the motion of the firing system with the motion of the articulation system and a second rotatable member operably engageable with the articulation system, wherein the closure system is configured to stop the rotation of the second rotatable member.

Abstract: A disposable reloadable laparoscopic suturing instrument and method for suturing is provided. The disposable reloadable laparoscopic suturing instrument connects to and receives control signals via an actuating instrument. The instrument includes a pair of first and second opposable jaw members, a blade unit, and a needle unit. The jaw members close, clamp onto and secure the tissue, and include a pair of needle tracks and a blade track between the needle tracks. The blade unit has a blade that, upon actuation, travels along the blade track cutting the tissue resulting in an incision. Each needle unit has a needle and thread that, upon actuation, travels along a needle track suturing and sealing the tissue on both sides of the incision.

Abstract: A surgical staple driver array configured for operable use with a surgical staple cartridge. A distal staple driver is slidably supportable in the surgical staple cartridge and is configured to operably support a distal surgical staple thereon that is oriented in a distal direction. At least one intermediate staple driver is configured to be slidably supported in the surgical staple cartridge adjacent the distal staple driver. Each intermediate staple driver is configured to operably support a first surgical staple that is oriented in a first direction, a second surgical staple that is oriented in a second direction and a third surgical staple that is oriented in a third direction. A proximal staple driver is slidably supported adjacent a proximal most one of the intermediate staple drivers. The proximal staple driver is configured to operably support a proximal surgical staple thereon.

Abstract: A surgical instrument for surgically joining a tissue includes a handle assembly, an elongate portion extending distally from the handle assembly, a pair of opposed jaw members, and a tissue stop. The tissue stop is mechanically engaged with a first jaw member and is configured to retain the tissue between the jaw members. The tissue stop is movable between a first position, where a stopping portion of the tissue stop is disposed between a tissue-contacting surface of the first jaw member and a tissue-contacting surface of the second jaw member, and a second position, where the stopping portion is between the tissue-contacting surface of the first jaw member and a lower surface of the first jaw member. A portion of the tissue stop is made of stamped metal section and a portion of the tissue stop is made of an overmolded plastic section.

Abstract: A powered surgical device configured to clamp and fasten tissue is disclosed. The powered surgical device comprises a shaft, an articulation joint, a motor-driven flexible drive member movably supported in the shaft, an I-beam coupled to the motor-driven flexible drive member, and a housing. The shaft comprises a proximal end. The motor-driven flexible drive member passes through the articulation joint during a tissue clamping motion. The motor-driven flexible drive member is driven distally away from the proximal end of the shaft during the tissue clamping motion. The housing is coupled to the proximal end of the shaft. The housing comprises a rotary multi-turn unidirectional manually-operated retraction mechanism. A rotation of the rotary multi-turn unidirectional manually-operated retraction mechanism in a first direction is configured to retract the motor-driven flexible drive member proximally toward the proximal end of the shaft.

Abstract: An adapter assembly includes a cam housing defining a proximal cam slot and a distal cam slot, a first elongate shaft, and a second elongate shaft. The first elongate shaft has a proximal end portion received in the proximal cam slot, and a distal end portion configured to be coupled to a surgical loading unit. The second elongate shaft has a proximal end portion received in the distal cam slot, and a distal end portion configured to be coupled to the surgical loading unit. The first and second elongate shafts are configured to move in opposing longitudinal directions in response to a rotation of the cam housing to articulate the surgical loading unit.

Abstract: A surgical device drive system comprising a gear coupled to a drive train is disclosed. The gear is configured to transmit a proximal retraction motion to a drive member. The surgical device drive system further comprises a control system coupled to the gear, and a manual input device comprising an input component and a ratchet mechanism. The input component is selectively coupled to the gear by the ratchet mechanism. The drive train is operable in a distal advancement direction and in a proximal retraction direction. In a first state, the control system is configured to drive the gear and the drive train in the distal advancement direction and the proximal retraction direction. In a second state, the manual input device is configured to drive the gear and the drive train in the proximal retraction direction, but not the distal advancement direction, using the ratchet mechanism.

Abstract: The present invention relates to a fixing piece firing device for a dental membrane, the device being capable of firing the fixing piece to fix the dental membrane that covers a graft site after bone graft during implant surgery, and of facilitating access into an oral cavity due to a tip part with a curved front end, thus enabling a quick and easy procedure without using a typical dental drill.

Abstract: Surgical devices, systems, and related methods provide automated assessment of the status of a surgical instrument. A surgical device is configured to staple tissue via a replaceable stapler cartridge. The surgical device includes a pusher member configured to articulate the stapler cartridge to deploy staples. The surgical device includes an actuation mechanism that articulates the pusher member and a control unit configured to control operation of the actuation mechanism to attempt move the pusher member from a first position to a second position subject to an output limit for the actuation mechanism and determine an attribute of the stapler cartridge based on an amount of movement of the pusher member achieved. The determined attribute can indicate a type of the stapler cartridge selected from different stapler cartridges, whether the stapler cartridge has already been fired, or that no stapler cartridge is mounted to the surgical device.

Abstract: A surgical instrument equipped with a coupler arrangement for coupling end effectors to an elongated shaft assembly of the surgical instrument. The end effectors may include a pair of jaws in the form of a carrier supporting a surgical staple cartridge and an anvil. The anvil is movable relative to the carrier in opening and closing directions. The end effector may include an articulation joint that facilitates pivotal travel of the carrier and anvil as a unit relative to the elongated shaft assembly in the same directions in which the anvil is opened and closed relative to the carrier.

Abstract: A compression gauge cartridge for use mounted in a cartridge bay of a cartridge jaw member of a surgical stapler instrument to compress a tissue consistently to a predetermined thickness and measure a reactionary load therefrom comprises: a cartridge body; a force gauge assembly comprising a force transducer and a compression head having a tissue compression ace, wherein the force gauge assembly is supported by the cartridge body, and wherein the compression head is configured and disposed so that the tissue compression face thereof lies substantially closer to the tissue contacting surface of the anvil jaw member than the tissue supporting surface of the cartridge body; and a spacer member extending from the tissue supporting surface of the cartridge body, wherein the force gauge assembly is positioned distally with respect to the spacer member.

Abstract: An end effector usable with a surgical instrument includes a first jaw pivotably coupled to a second jaw. The first jaw includes staple forming depressions. A staple cartridge is releasably attachable to a channel of the second jaw. A plurality of staples is disposed in the staple cartridge. A shipping wedge is releasably attached to the staple cartridge. The shipping wedge maintains the staples in their respective retention slots and is usable to separate the staple cartridge from the channel of the second jaw.

Abstract: A stapling apparatus includes a staple cartridge, a pusher, and a buttress. The staple cartridge has a tissue contact surface and supports an array of fasteners therein. The pusher is configured to move relative to the staple cartridge to fire the fasteners from the staple cartridge. The buttress is supported on the staple cartridge and secured to the pusher.

Abstract: A surgical instrument including a handle portion, a body portion, a movable handle, a tool assembly, a drive beam and a closure apparatus is disclosed. At least one of the closure apparatus and a contact surface of the tool assembly include a plastic surface. The body portion extends distally from the handle portion. The movable handle is located on the handle portion and is in mechanical cooperation with a drive member. The tool assembly includes an anvil, a cartridge assembly and a contact surface. The drive beam includes a proximal engagement portion and is configured to engage a portion of the drive member. The closure apparatus is configured to engage the contact surface of the tool assembly. At least a partial actuation of the movable handle moves the closure apparatus distally into engagement with the contact surface to approximate the anvil and the cartridge assembly.

Abstract: A surgical stapling device for sequentially applying a plurality of fasteners to body tissue and simultaneously incising tissue is provided. The surgical stapling device is adapted to receive disposable loading units having staples in linear rows whose length can be between about 30 mm and 60 mm. The disposable loading unit includes a proximal body portion, a mounting assembly and a tool assembly. The mounting assembly is secured to the proximal end of the tool assembly and pivotally mounted about a pivot axis to the distal end of the proximal body portion. A support member or blow-out plate assembly is positioned on opposite sides of the pivot axis and extends between the proximal body portion and the mounting assembly.

Abstract: A retainer system for use with staple cartridges configured for use with a surgical stapling device is disclosed. The retainer comprises a retainer body that is configured to be attached to the staple cartridge by retention features. The system includes a tool that moves the retention features between a first state wherein the retention features prevent the retainer from being attached to the staple cartridge to a second state where the retainer may be coupled to the staple cartridge by the retention features.

Abstract: A surgical stapling apparatus includes an actuating device including an elongated shaft. A tool assembly is disposed on a distal end of the shaft. The tool assembly includes a first jaw member supporting a cartridge assembly having a plurality of surgical fasteners, and a second jaw member supporting an anvil. The first jaw member is movable in relation to the second jaw member between a spaced position and an approximated position. One of the first or second jaw members includes a cantilever at a proximal end thereof. A firing cam bar assembly is slidably disposed within the tool assembly and includes a cam surface configured to engage the cantilever to move the first and second jaw member towards the approximated position and a distal end configured to deploy the plurality of surgical fasteners from the cartridge assembly.

Abstract: A surgical stapling assembly is disclosed comprising a firing member comprising a vertically extending body portion comprising two lateral sides, a first jaw engagement member configured to slidably engage a first jaw as the firing member moves through a staple-firing stroke, and a second jaw engagement member extending laterally from each lateral side of the body portion, wherein the second jaw engagement member is configured to slidably engage a second jaw as the firing member moves through the staple-firing stroke. The second jaw engagement member comprises a vertical thickness and a lateral width defined as the distance between the body portion and an outer edge of the second jaw engagement member, wherein the vertical thickness and the lateral width comprise a ratio between about 1:2 and about 1:1.

Abstract: Closure systems and members for actuating jaws of a surgical end effector. The closure systems include a closure member that is configured to interact with corresponding portions of the jaws to establish improved closure and clamping loads.

Abstract: A stapling system that comprises a retainer for use with staple cartridges that are configured for use with multiple surgical stapling devices that comprise different lockout arrangements is disclosed. The retainer is configured to be releasably attached to a staple cartridge to form a cartridge assembly. The retainer comprises an authentication key that is configured to defeat a lockout arrangement in any one of the surgical stapling devices in which the cartridge assembly is seated.

Abstract: Devices and methods are provided for stabilizing fasteners post-deployment. Devices and methods are also provided for facilitating ejection of surgical fasteners from a cartridge. Devices and methods are also provided for guiding surgical fasteners. Devices and methods are also provided for facilitating closing and clamping of an end effector of a surgical device. Devices and methods are also provided for securing fasteners and adjunct materials to tissue. Devices and methods are also provided for removably coupling a cartridge to an end effector of a surgical device. Devices and methods are also provided for locking a surgical device based on loading of a fastener cartridge in the surgical device. Devices and methods are provided for adjusting a tissue gap of an end effector of a surgical device. Devices and methods are also provided for manually retracting a drive shaft, drive beam, and associated components.