Richard L. Leimbach,Richard F. Schwemberger,John P. Measamer,Johnny H. Alexander, III,Christopher C. Miller,Brian F. DiNardo,Jason M. Rector
申请号：
US15632894
公开号：
US20170354409A1
申请日:
2017.06.26
申请国别(地区):
US
年份:
2017
代理人:
摘要：
A surgical circular stapler has a handle assembly, a shaft, a stapling assembly, a motor, a drive assembly, and a firing assembly. The shaft extends distally from the handle assembly. The stapling assembly is secured to a distal end of the shaft. Longitudinal translation of the firing assembly causes the stapling assembly to drive a plurality of staples in a circular array to secure two lumens of tissue together. The stapling assembly may further drive a blade to sever any excess tissue interior of the circular array of staples. The motor is operable to rotate the drive assembly to thereby translate the firing assembly. A resilient member biases the firing assembly proximally. Through cooperation between the firing assembly and the resilient member, the firing assembly is driven distally and proximally to complete a firing stroke in response to rotation of the drive assembly through a single revolution.
