SUZHOU TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO.; LTD.
发明人:
KEZHAN SUN,WANGDONG CHEN
申请号：
BR112015015572
公开号：
BR112015015572A2
申请日:
2013.12.27
申请国别(地区):
BR
年份:
2017
代理人:
摘要：
Summary circular stapler and staple head assembly thereof A circular stapler and a staple head assembly thereof are disclosed. the clip head assembly comprises a clip barrel assembly and an anvil assembly. The anvil assembly includes an anvil ring and an anvil rod that are fixedly connected to one another, wherein the anvil rod is capable of sliding along the longitudinal direction in an anti-expansion tube. the staple barrel assembly includes a staple barrel, a staple impeller disposed within the staple barrel, and a staple cartridge attached to a distal end of the staple barrel； wherein the distal end of the staple barrel assembly is a staple cartridge surface； and the staple barrel comprises a tubular housing, an anti-expansion tube disposed in the housing and a reinforcement connected between the housing and the anti-expansion tube, wherein the housing is provided with a first cavity to accommodate tissues to be excised, and a proximal end of the body is configured for connection to a circular stapler body, and a distal end of the body is configured for mounting the staple cartridge； wherein at least one aperture communicating with the first cavity is disposed in the side wall of the clip barrel housing, and a distance from a distal end of the anti-expansion tube to the clip cartridge surface is greater than from a distal end of the opening for the staple cartridge surface； and at least a portion of the first cavity is exposed from the opening. thus, the circular stapler and staple head assembly not only provide a larger display window during surgery, but also facilitate the operation of pulling tissues and accommodating more tissues to be excised.resumo grampeador circular e conjunto de cabeça de grampo do mesmo um grampeador circular e um conjunto de cabeça de grampo do mesmo são divulgados. o conjunto de cabeça de grampo compreende um conjunto de barril de grampo e um conjunto de bigorna. o conjunto de bigorna inclui um anel de bigorna e uma haste de bigorna
