Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-02-04
1994-05-17
Weiss, John G.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604256, 2511491, 137849, A61M 5178
Patent
active
053123620
ABSTRACT:
A self-sealing cannula assembly for maintaining pressure in a body cavity during insufflatory surgery. A cap made of elastomeric material is fitted to an enlarged portion of a cannula and has means for simultaneous sealing and fastening the cap to the cannula. The endwall of the cap may be apertured to permit entry and exit of a trocar or other surgical instrument without interruption of the seal. Another embodiment provides an elastomeric adaptor cap arranged to be fitted to the exterior circumference of the above-mentioned cap for temporary insertion and withdrawal of instruments of relatively small diameter without removal of the original cap.
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Kyburz Gene T.
Pfolsgraf Lanis P.
Owens Precision Systems, Inc.
Weiss John G.
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