Universal seal for use with endoscopic cannula

Details Universal seal for use with endoscopic cannula Universal seal for use with endoscopic cannula

1998-02-23

1999-11-23

Buiz, Michael

Surgery

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

Treating material introduced into or removed from body...

604256, A61M 5178

Patent

active

059892242

ABSTRACT:
A universal seal is shown with orbital movement of a center opening for use in endoscopic surgery. A two part seal housing encloses the universal seal in an annulus surrounding an insertion port. The outer periphery of the universal seal is clamped between the two parts at the outer edge of the annulus. An inner ring of the universal seal is free to move from side-to-side inside the annulus while maintaining rubbing contact with the upper and lower surfaces of the annuluses for vertical support. The seal housing and universal seal are mounted on a proximal end of a cannula which allows access therethrough for the endoscopic surgery. The center opening of the universal seal is in general alignment with the insertion port of the seal housing, but the center opening and inner ring may move from side to side when medical instruments are inserted through the insertion port, the center opening, and the cannula and moved from side to side.

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patent: 5628732 (1997-05-01), Antoon, Jr. et al.
patent: 5827228 (1998-10-01), Rowe

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