Disclosed is an end effector of a surgical linear stapler, which includes a staple cartridge, an anvil, a pusher unit, a driving wedge, a stabilizer unit and a blade unit, wherein the stabilizer unit is arranged on the staple cartridge while neighboring on the pusher unit and at least partially discharged from the staple cartridge by the driving wedge so as to hold tissue placed in between the staple cartridge and the anvil.

A treatment device includes: an operating section; an elongated insertion section connected to the operating section; a pair of clamp members provided at the distal end of the insertion section so as to be openable and closable relative to each other; a movable member that is moved so as to push staples relative to tissue sandwiched between the clamp members; and a coil member that is arranged so as to pass through the insertion section in the longitudinal direction and that transmits a pressing force from the operating section to the movable member.

A loading unit includes a shell assembly, a lock collar, and a release collar. The shell assembly has a coupling ring that defines a lock slot and a proximal opening configured to receive a distal end portion of a surgical instrument. The lock collar is disposed about the coupling ring and has a radially extending lock that is configured to be received within the lock slot. The lock collar is transitionable between a locked configuration in which the lock is positioned within the lock slot and an unlocked configuration in which the lock is lifted from within the lock slot. The release collar is disposed about the coupling ring proximal of the lock collar and is transitionable between an unactuated position and an actuated position. The release collar transitioning the lock collar to the unlocked configuration as the release collar is translated from the unactutated position towards the actuated position.

A cartridge assembly for a surgical stapling device includes a staple cartridge that includes a staple array that has a configuration to minimize blood leakage through a staple line formed by the staple cartridge.

Staple cartridge assemblies for use with surgical stapling instruments and methods for manufacturing the same are provided. Scaffolds for use with a surgical staple cartridge and methods for manufacturing the same are also provided.

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.

A surgical stapling apparatus includes a shaft assembly, an end effector secured to the shaft assembly, a firing assembly, and an articulation assembly. The firing assembly includes a drive beam and a flexible knife bar assembly that are selectively advanceable through the end effector for firing the end effector. The articulation assembly has an articulation link assembly and a pivotable bar guide assembly. The articulation link assembly is coupled to the end effector and actuatable to cause the end effector to articulate relative to the shaft assembly. The pivotable bar guide assembly supports the flexible knife bar assembly and includes a proximal guide assembly and a distal guide assembly that are pivotably coupled together. The proximal guide assembly is pivotably coupled to the shaft assembly. The distal guide assembly is pivotably coupled to the end effector.

A loading unit for a surgical stapling apparatus includes an anvil assembly, a staple cartridge assembly, and a surgical buttress assembly associated with the anvil or the staple cartridge assembly. Each of the anvil and staple cartridge assemblies has a tissue facing surface defining a central longitudinal slot therethrough. The surgical buttress assembly includes a buttress material positioned on the tissue facing surface of the anvil or staple cartridge assembly and a buttress frame supporting the buttress material. The buttress frame is movable from an undeployed position in which the buttress frame retains the buttress material within the boundaries of the tissue facing surface of the anvil or staple cartridge assembly to a deployed position in which the buttress frame extends the buttress material laterally outwardly from the anvil or staple cartridge assembly.

An end effector for stapling and cutting an anatomical structure includes an anvil, a cartridge, and a blade. The anvil has an anvil face and a plurality of staple pockets positioned on the anvil face. The cartridge has a cartridge face defining a cartridge blade channel, the cartridge being configured to retain a plurality of staples. Each of the plurality of staples comprises a first staple leg, a second staple leg, and a crown connecting the first and second staple legs and having a midpoint. Each of the plurality of staples comprises an open staple configuration and a closed staple configuration where a first portion of the first staple leg and a second portion of the second staple leg are bent relative to the crown such that the first portion of the first staple leg and the second portion of the second staple leg cross the midpoint of the crown.

The present disclosure includes apparatuses for a surgical handle assembly. An example apparatus includes a toothed rack, a movable handle member, a driving pawl configured to engage the toothed rack and advance the toothed rack in a linear distal direction in response to a movable handle member advancing in a proximal direction and a latch configured to engage the toothed rack and advance the toothed rack in a linear proximal direction in response to the movable handle member advancing in a distal direction.