Displacement-activated medical check valve

Details Displacement-activated medical check valve Displacement-activated medical check valve

1996-05-30

1997-12-16

McDermott, Corrine M.

Surgery

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

Treating material introduced into or removed from body...

604232, 604 89, 604212, A61M 500

Patent

active

056979150

ABSTRACT:
A displacement-activated medical check valve is provided for selectively opening and closing medicinal fluid communication. The check valve includes a flexible elastomeric member that has a proximal end and a distal end and has a sealed perforation defined at least partially through the flexible elastomeric member. A housing receives the flexible elastomeric member so that it can be displaced along the length thereof. A contact member is provided for engaging the distal end of the elastomeric member when at least a portion of the elastomeric member is displaced against the contact member. The elastomeric member and the sealed perforation are sized and configured such that the perforation is shortened and thereby compressed open when the elastomeric member is compressed against the contact member. When a compressive force is removed the elastomeric member rebounds to close the perforation.

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