TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO.; LTD.
发明人:
DING, SHUICHENG,CHEN, WANGDONG,SHI, YANBO
申请号：
CA2942427
公开号：
CA2942427C
申请日:
2015.04.03
申请国别(地区):
CA
年份:
2018
代理人:
摘要：
A medical anastomosis device (100), comprising a firing assembly(50), a staple anvil (30), a staple anvil assembly (34), and a staplecartridge assembly (32)； the firing assembly (50) comprises a staplecartridge push rod (54) provided with a stop pin (542) thereon； the stapleanvil (30) is provided with a safety block (38) therein capable ofcoordinating with the stop pin (542)； the safety block (38) is providedwith a clamping groove (384) thereon； when the anastomosis device (100)is in an initial status, the safety block (38) and the stop pin (542) do notcontact each other； when the anastomosis device (100) is in a firing status,the movement of the safety block (38) is restricted, and the clampinggroove (384) is located on a movement route from the distal end of themedical anastomosis device (100) to the proximal end； and when theanastomosis device (100) returns to the initial status after being fired, thestop pin (542) is clamped in the clamping groove (384), and the safetyblock (38) limits the stop pin (542) in the direction from the proximal endof the medical anastomosis device (100) to the distal end. The three statusjointly compose the complete firing process of the staple cartridgeassembly (32), preventing a second firing of the staple cartridge push rod(54) to ensure operation safety.37
