Importance

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Abstract

A seal assembly used in combination with a trocar assembly to maintain sealing engagement with the exterior surface of medical instrument, which may have different size diameters, introduced into the trocar assembly so as to maintain adequate insufflation pressure within a body cavity accessed by the trocar assembly. The seal assembly includes a seal member and is structured to permit free movement of the seal member at least radially within a chamber of a seal housing which may be attached to or part of the trocar housing. The seal member and the sealing chamber are cooperatively dimensioned to maintain at least the periphery of an outer surface of the seal member in surrounding relation to an inlet port of the chamber and thereby maintain seal engagement between corresponding interior surfaces of the chamber and the corresponding outer surfaces of the seal member.

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First Claim