Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-01-04
1994-09-27
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604256, A61M 2902
Patent
active
053503643
ABSTRACT:
Trocar assembly devices are disclosed that include an improved seal assembly that accommodates instruments having a wide range of diameters. The seal assembly includes a universal seal member that is generally of hourglass shape defining converging and diverging side walls that form a constricted center bore portion therebetween. Various alternative means are provided to either increase or decrease the inner diameter of the center bore portion of the seal member.
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Collins John M.
Farra Robert
Pichon Dean
Stephens Randy R.
Ethicon Inc.
Gutowski Anthony
Yasko John D.
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