MOTOR DRIVEN ROTARY INPUT CIRCULAR STAPLER WITH MODULAR END EFFECTOR

摘要

A surgical stapling device comprises a handle assembly, a shaft assembly, and a stapling head assembly. The shaft assembly comprises a rotary drive shaft that translates between two longitudinal positions to alternate between a tissue clamping mode and a tissue cutting/stapling mode. The stapling head assembly includes a first set of rotary drive elements that convert rotary motion of the drive shaft into a tissue clamping action when the drive shaft is in a distal position. The stapling head assembly also includes a second set of rotary drive elements that convert rotary motion of the drive shaft into a tissue cutting/stapling action when the drive shaft is in a proximal position. The drive shaft may be driven manually or by a motor. The stapling head assembly may be provided in a cartridge form that is removable from the shaft assembly.

主权项

1. An apparatus for stapling tissue, the apparatus comprising:
(a) a body assembly; (b) a rotary drive shaft, wherein the rotary drive shaft is translatable between a first longitudinal position and a second longitudinal position relative to the body assembly; and (c) a stapling assembly, wherein the stapling assembly comprises:
(i) an anvil,(ii) a staple deck,(iii) a staple driver operable to drive staples through the staple deck and toward the anvil,(iv) a first drive member operable to move the anvil toward the staple deck in response to rotation of the drive shaft in the first longitudinal position, and(v) a second drive member operable to move the staple driver toward the anvil in response to rotation of the drive shaft in the second longitudinal position.