发明名称 |
IRIS VALVE WITH NOVEL LOCKING MECHANISM |
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.
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申请公布号 |
US2008208222(A1) |
申请公布日期 |
2008.08.28 |
申请号 |
US20070677809 |
申请日期 |
2007.02.22 |
申请人 |
BECKMAN ANDREW T;MINNELLI PATRICK J;NGUYEN ANTHONY T;BAXTER CHESTER O;D ARCANGELO MICHELE |
发明人 |
BECKMAN ANDREW T.;MINNELLI PATRICK J.;NGUYEN ANTHONY T.;BAXTER CHESTER O.;D'ARCANGELO MICHELE |
分类号 |
A61B17/04 |
主分类号 |
A61B17/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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