Circular stapler with selectable motorized and manual control

摘要

An apparatus is operable to clamp, cut, and staple tissue. The apparatus includes a stapling head assembly, a shaft assembly coupled to the stapling head assembly, and an actuator handle assembly coupled to the shaft assembly. The stapling head assembly is operable to clamp tissue, cut tissue, and staple tissue in response to rotation imparted by a single rotary drive shaft extending through the shaft assembly. The actuator handle assembly includes a motor positioned within a motor housing, a rotation knob, and a selection assembly. The rotation knob is coupled to a proximal end of the motor housing. The rotation knob is configured to translate between a proximal position and a distal position. The selection assembly is operable to select between motorized operation of the apparatus or manual operation of the apparatus, based on the longitudinal position of the rotation knob.

主权项

1. An apparatus for stapling tissue, the apparatus comprising:
(a) a stapling head assembly, wherein the stapling head assembly is configured to clamp tissue, wherein the stapling head assembly is further configured to sever and staple the clamped tissue; (b) a shaft assembly coupled to the stapling head assembly; and (c) a handle assembly coupled to the shaft assembly, wherein the handle assembly comprises:
(i) a motor positioned within a motor housing,(ii) a motor housing positioner coupled to a proximal end of the motor housing, wherein the motor housing positioner is configured to translate between a proximal position and a distal position, wherein the motor is configured to translate with the motor housing positioner, and(iii) a selection assembly, wherein the selection assembly is operable to select between a motorized clamping motion of the stapling head assembly or a manual clamping motion of the stapling head assembly based on the position of the motor housing positioner.