Valve assembly for introducing instruments into body cavities

Details Valve assembly for introducing instruments into body cavities Valve assembly for introducing instruments into body cavities

A - Human Necessities

61

M

A61M 39/06 (2006.01) A61B 17/34 (2006.01)

Patent

CA 2093754

The present invention is directed to a valve assembly for maintaining a substantial fluid tight seal between an internal portion of a patient's body and an outside atmosphere during introduction of a surgical instrument into the patient's body. At least one sealing gasket assembly is included with at least a pair of overlapping elements defining a passageway therethrough. The elements form a substantial gas tight seal prior to inserting an instrument therethrough. The elements are constructed of a flexible material to allow passage of the instrument through the passage way. At least one deformable sealing element is fabricated at least in part from a flexibly resilient material and defines a substantially central aperture for accommodating the instrument such that the flexibly resilient material defining the aperture engages the surface of the instrument to provide a substantially fluid tight seal for preventing passage of fluids past the deformable sealing element.

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