Rotatable medical valve closure

Details Rotatable medical valve closure Rotatable medical valve closure

1996-02-06

1999-11-23

McDermott, Corrine

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604248, 604169, A61M 5178

Patent

active

059892234

ABSTRACT:
A medical closure device for providing a passage into or out of the body. A resilient member at least partially defines the passage, and a two-part body is disposed to permit relative rotation its parts about the passage axis. The first body portion compresses and supports the resilient member. Cam surfaces on the second body control a compression member which is disposed in a radially extending aperture of the first body portion and biased radially outwardly by the resilient member to maintain contact with the cam surface. Relative rotation of the body portions about the axis moves the cam surface relative to the compression member, causing radial displacement of the compression member from a first position (in which the passage is relatively uncompressed and open) to a second position (in which the passage is restricted).

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