BECKMAN, ANDREW T.,MINNELLI, PATRICK J.,NGUYEN, ANTHONY T.,BAXTER, III CHESTER O.,D'ARCANGELO, MICHELE,DARCANGELO, MICHELE
申请号：
PL08730139
公开号：
PL2131763T3
申请日:
2008.02.19
申请国别(地区):
PL
年份:
2018
代理人:
摘要：
A laparoscopic surgical access device comprises a first frame and a second frame having relative axial positions. A flexible and resilient iris valve is connected to the first and second frames and has a closed position and an opened position based on the relative angular position of the first and second frames. A lock is connected to the first and second frames, the lock being selectively operative to prevent relative rotational movement in a first rotational direction. One embodiment uses a ratchet and pawl mechanism operable with a control ring. Another embodiment uses a ratchet and pawl mechanism operable with a button. Yet another embodiment uses a wedge track and ball mechanism.
