SURGICAL STAPLING APPARATUS

摘要

A surgical stapling apparatus (stapler) is provided. The stapler includes a housing, elongated member, and a reload. A cartridge is configured to selectively couple to a first jaw member of the reload and includes one or more resilient members thereon. An anvil operably supported on a second jaw member of the reload is configured to compress one or more fasteners ejected from the cartridge. The anvil includes one or more locking members thereon. A knife is configured to translate through the cartridge and anvil when the first and second jaw members are in a closed configuration. Engagement between the knife and the resilient member(s) causes the resilient member(s) to move from an initial configuration that allows the knife to travel distally past the locking member(s) to a final configuration that allows the locking member(s) to engage the knife.

主权项

1. A surgical stapling apparatus, comprising:
a first jaw member; a cartridge configured to selectively couple to the first jaw member, the cartridge having a cartridge housing defining a recess for housing a resilient member, the cartridge housing having a plurality of fasteners disposed in slots, the resilient member having a first position, a tip of the resilient member extending above a surface of the cartridge housing when the resilient member is in the first position, the resilient member having a second position in which the tip does not extend above the cartridge housing; a second jaw member having an anvil with staple forming depressions, the anvil having a locking member with a first position and a second position, an end of the locking member being aligned with the resilient member when the cartridge is coupled to the first jaw member; and a drive member movable from a retracted position to an advanced position for driving the fasteners toward the anvil, the locking member blocking movement of the drive member in the first position; the resilient member moving the locking member to the second position when the cartridge is attached to the first jaw member, the locking member allowing movement of the drive member when the locking member is in the second position.