IRIS valve with control ring

Details IRIS valve with control ring IRIS valve with control ring

2007-02-22

2011-12-13

Robert, Eduardo C (Department: 3733)

Surgery

Specula

Retractor

Reexamination Certificate

active

08075482

ABSTRACT:
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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