Abstract: Surgical buttress attachment assemblies for surgical stapling apparatus include a staple cartridge and a surgical buttress releasably secured to the staple cartridge. The staple cartridge includes buttress attachment features, such as posts, covers, and/or slots, and the surgical buttress are configured to engage the buttress attachment features of the staple cartridge.

Abstract: A surgical kit includes a stapling device and a securing ring. The stapling device includes a reload including a trocar member and an anvil assembly including an anvil and an anvil shaft detachably couplable to the trocar member of the reload for unitary movement. The securing ring is selectively securable about the anvil shaft. The securing ring has an annular profile defining an aperture. The securing ring includes first and second portions and an intermediate portion. The first and second portions adjustably overlap each other. The first portion includes a first tab. The second portion includes a hook. The intermediate portion includes a second tab and defines slots to receive the hook of the second portion. When the first and second tabs are displaced relative to each other, the aperture is transitionable from a first state having a first diameter to a second state having a second diameter.

Abstract: Access assemblies includes an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, a seal assembly disposed adjacent to the guard assembly, and a centering mechanism for maintaining the seal assembly and guard assembly centered within a cavity of the instrument valve. In embodiments, the seal assembly includes a plurality of seal sections that are movable from an unfolded configuration to folded configuration in which the seal assembly forms a hexagonal member defining an opening to facilitate sealed passage of a surgical instrument. The seal sections may include a tapered inner edge for engaging a surgical instrument inserted through the instrument valve housing.

Abstract: An electrosurgical instrument has a hollow shaft portion defining a plurality of fluid ports configured for suction and/or irrigation. The electrosurgical instrument also includes a plurality of different electrode tips configured to detachably couple to the shaft portion. Each of the electrode tips have an active electrode and a return electrode to provide bipolar electrosurgical energy therebetween.

Abstract: A surgical access device including a cannula body and a fixation mechanism is disclosed. The cannula body includes a housing, and an elongated portion extending distally from the housing and defining a longitudinal axis. The fixation mechanism includes a sleeve and a spring. The sleeve radially surrounds a portion of the elongated portion of the cannula body. The sleeve is rotatable about the longitudinal axis relative to the elongated portion of the cannula body, and the sleeve is longitudinally translatable relative to the elongated portion of the cannula body. A first portion of the spring is engaged with the sleeve, and a second portion of the spring engaged with a distal portion of the elongated portion of the cannula body. Rotation of the sleeve about the longitudinal axis relative to the elongated portion of the cannula body causes a portion of the spring to move away from the longitudinal axis.

Abstract: An electrode assembly for an electrosurgical instrument includes a housing configured to operably receive a distal end of an electrosurgical instrument shaft, the housing encapsulating an insulative core sandwiched between a pair of return electrodes. The insulative core includes a slot defined about a periphery thereof configured to partially receive an active electrode. The active electrode and the pair of return electrodes are adapted to connect to opposite polarities of an electrosurgical generator. A tensioning mechanism is configured to tension the active electrode about the insulative core during assembly.

Abstract: A buttress assembly for use with a surgical stapling device includes a buttress material and a loading assembly. The buttress material includes proximal and distal portions. The proximal portion defines proximal bores and a proximal slot. The distal portion defines distal bores and a distal slot. The loading assembly includes proximal and distal wings and proximal and distal cups. Each of the proximal wings includes a proximal peg configured to be received in a corresponding one of the proximal bores of the buttress material. Each of the distal wings includes a distal peg configured to be received in a corresponding one of the distal bores of the buttress material. When the proximal pegs are received in the proximal bores, the proximal cup is in registration with the proximal slot, and when the distal pegs are received in the distal bores, the distal cup is in registration with the distal slot.

Abstract: A fixation device for folding a seal member includes a frame having a horizontal portion and an upright portion, a press assembly secured to the upright portion of the frame, and a nest assembly secured to the horizontal portion of the frame. The press assembly includes a handle assembly and an anvil assembly operably connected to the handle assembly. The nest assembly includes a clamping assembly, a folding assembly supported on the clamping assembly, a support assembly supported on the folding assembly, and a nest member. The support assembly includes a support plate and a seal clamp for securing a seal member.

Abstract: A tool assembly for use with an electrosurgical device for cutting tissue includes a base portion, a return lead, an electrical insulator, a center pin, and an active lead. The center pin extends from the base portion and through a lumen of the electrical insulator. The active lead is securely fixed to the base portion and extends between the base portion and a distal portion of the center pin such that a portion of the active lead extends around the distal portion of the center pin and first and second segments of the active lead are spaced apart from the return lead. Upon activation, electrosurgical energy is transmitted from the active lead through tissue to the return lead to cut tissue in contact with the active lead.

Abstract: A surgical stapling instrument includes a releasable stapling end effector. The stapling end effector includes a body portion, a jaw assembly pivotally secured to the body portion, and an articulation mechanism extending between the body portion and the jaw assembly. The jaw assembly is articulable between a non-articulated position and at least one articulated position. The articulation mechanism includes a barrel member and first and second linkage assemblies. The barrel member defines a channel and each of the first and second linkage assemblies include a protrusion received within the channel. Rotation of the barrel member in a first direction causes the first linkage assembly to move in a proximal direction and the second linkage assembly to move in a distal direction to cause the jaw assembly to move from the non-articulated position to the at least one articulated position.

Abstract: A surgical kit includes a surgical stapling device and a loading assembly. The surgical stapling device includes a tool assembly and a buttress material. The tool assembly includes first and second jaw members. The first jaw member supports a staple cartridge that includes a retention assembly. The retention assembly includes a cam block including a pair of protrusions and a spring biasing the cam block towards the second jaw member. The buttress material includes proximal and distal portions. The proximal portion defines bores laterally spaced apart and configured to receive the pair of protrusions of the cam block. The distal portion defines a cavity to be placed over a distal end portion of the staple cartridge. The loading assembly includes a housing defining a chamber configured to receive a portion of the buttress material. The housing includes a proximal portion defining a slot configured to receive the buttress material therethrough and the pair of protrusions of the cam block.

Abstract: A surgical access assembly includes a cannula and a retention anchor including an annular body and a washer secured to the annular body. The annular body includes an inner side surface defining an opening therethrough, and the washer includes an inner terminal edge defining an opening therethrough that is aligned with the opening of the annular body. The elongated shaft of the cannula extends through the openings. The washer is transitionable between a first configuration in which the inner terminal edge of the washer is coincident with or disposed radially outwardly of the inner side surface of the annular body so that the retention anchor is slidable along the elongated shaft, and a second configuration in which the inner terminal edge of the washer extends radially inwardly of the inner side surface of the annular body and engages the elongated shaft to fix the retention anchor to the elongated shaft.

Abstract: A surgical stapling apparatus includes a loading unit having first and second jaw members, a drive beam, and a firing lockout assembly. The drive beam is axially movable within the loading unit during a firing sequence. The firing sequence includes an advancement stroke which moves the first and second jaw members to an approximated position and a retraction stroke which moves the first and second jaw members to an unapproximated position. The firing lockout assembly includes an iterating plate, a capture gear, and a lockout pin. The iterating plate is disposed adjacent to the drive beam and is incrementally movable proximally within the loading unit during the firing sequence. The capture gear is rotatable between first and second positions during the firing sequence and is configured to move the iterating plate. The lockout pin is configured to lock the drive beam after a pre-determined number of firing sequences.

Abstract: A surgical stapling apparatus includes a loading unit and a surgical buttress assembly. The loading unit includes an anvil assembly and a staple cartridge assembly. The staple cartridge assembly includes a staple cartridge having a tissue facing surface including staple pockets and a central longitudinal slot defined therethrough and a hook assembly extending outwardly from the tissue facing surface. The surgical buttress assembly includes an anvil buttress and a cartridge buttress. Each of the anvil and cartridge buttresses includes a body, a proximal tab, and a distal tab. The anvil and cartridge buttresses are interconnected at a junction of the proximal tabs and the surgical buttress assembly is folded at the junction such that the proximal tabs substantially overlie one another. The proximal tabs are engaged with the hook assembly to releasably secure the proximal tabs of the anvil and cartridge buttresses to the staple cartridge assembly.

Abstract: A tissue dissector includes a handle assembly including an actuator, a head portion including a blade member defining an aperture configured to receive tissue therethrough, and a lighting assembly configured to provide lighting to the aperture of the blade member. The blade member is operatively coupled with the actuator for rotation about the aperture.

Abstract: A method of manufacturing a seal assembly for a surgical access assembly includes forming a seal assembly having a monolithic construction. The seal assembly includes a support member, seal sections connected to the support member, bridges disposed between adjacent seal sections and interconnecting the adjacent seal sections, and a plurality of standoffs extending from each seal section. The method also includes placing the seal assembly into a treatment bath, cutting the bridges, and folding the seal assembly.

Abstract: A surgical stapling instrument including a stapling end effector configured for unilateral sealing of tissue. The stapling end effector includes an anvil assembly, a cartridge assembly coupled to the anvil assembly such that stapling end effector is movable between open and closed positions; and a clamping member slidably disposed about the anvil assembly and the cartridge assembly between an initial position in which the stapling end effector is in the open position and subsequent advanced positions in which the stapling end effector is in the closed position. The clamping member includes a substantially “C”-shaped cross-section with a leading edge. The leading edge includes a blade portion positioned outwards of the anvil and cartridge assemblies.

Abstract: A surgical stapling device includes a tool assembly and a buttress assembly. The tool assembly includes first and second jaw members that are transitionable between closed and open configurations. At least one of the first or second jaw members includes a retention assembly including a support defining a recess. The buttress assembly includes a buttress material and a spine. The buttress material includes first and second portions. The spine includes an elongate portion extending along a length of the first and second portions of the buttress material and an engaging portion attached to the elongate portion in an orthogonal relation. The engaging portion is detachably received in the recess of the support of the retention assembly of the at least one of the first or second jaw members.

Abstract: An anvil buttress loading system includes an anvil assembly, an anvil buttress retention clip coupled to the anvil assembly, an anvil buttress loading tool, and an anvil buttress. The anvil buttress is retainable on each of the anvil buttress loading tool and the anvil assembly, and is transferrable from the anvil buttress loading tool to the anvil assembly.

Abstract: An endoscopic stapling device for tissue resection has an asymmetrical tool assembly that delivers a greater number of staples, or rows of staples, to healthy tissue that remains in a patient, and fewer number of staples, or rows of staples, to diseased or damaged tissue to be resected and removed from the patient. The tool assembly includes an asymmetric cartridge assembly and an asymmetric anvil assembly for applying the staples to the resected and healthy tissues. The endoscopic stapling device also includes an asymmetric drive assembly for actuating the tool assembly.