MULTI-FIRE PUSH ROD STAPLING DEVICE

摘要

A surgical stapling device includes a housing and a plurality of cartridges that are coupled together to form a barrel that is rotatably supported within the housing. Each of the cartridges defines a plurality of staple pockets, each supporting a staple. An anvil is coupled to the housing and is movable in relation to the barrel between an open position and a clamped position. A guide shaft extends through the housing and through the barrel. The guide shaft supports a sled and a clamping member. The sled is configured to translate through the barrel to eject the staples from an active cartridge of the plurality of cartridges in response to actuation of a push rod. After firing staples from the active cartridge, the sled and the guide shaft are configured to index or rotate the barrel within the housing to move a second cartridge of the plurality of cartridges to the active position upon retraction and subsequent movement of the sled through a second firing stroke.

主权项

1. A surgical stapling device comprising;
a housing; a plurality of cartridges coupled together to form a barrel, the barrel being rotatably supported within the housing, each of the cartridges defining a plurality of staple pockets and supporting a plurality of staples; an anvil coupled to the housing and movable in relation to the barrel between an open position and a clamped position, each of the cartridges being sequentially movable into an active position in alignment with the anvil; a guide shaft rotatably supported within the housing, the guide shaft being rotatably coupled to the barrel such that rotational movement of the guide shaft causes corresponding rotational movement of the barrel; a sled movably positioned within the housing to translate through the barrel to eject the staples from a first cartridge of the plurality of cartridges in the active position; wherein the sled and the guide shaft are configured such that movement of the sled through at least one of a firing stroke and a retraction stroke causes the barrel to rotate to move a second cartridge of the plurality of cartridges to the active position.