Importance

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Abstract

A seal assembly used in combination with a trocar assembly and disposed and structured to establish sealing engagement with the exterior surface of medical instrument 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 unconnected to and freely moveable, at least laterally, within a seal chamber of the trocar assembly. The seal member and the seal chamber are cooperatively dimensioned to maintain one or more outer peripheral surfaces of the seal member in surrounding, sealing relation to one or both of the inlet and outlet ports of the seal chamber thereby eliminating or reducing the escape of insuflation gas through the trocar assembly when an instrument is present therein.

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First Claim