Valve assembly for introducing instruments into body cavities.

摘要

A valve assembly 10 adapted for introduction of surgical instruments 44 into a patient's body includes a valve body 12 formed of a flexibly resilient material which defines an aperture 14 for reception of the instrument. The aperture is configured and dimensioned such that insertion of the instrument into the aperture will cause the resilient material of the valve body to resiliently engage the outer surface of the instrument in a substantially gas tight manner. The valve assembly includes biasing means 42 for closing the valve body to form a gas tight seal prior to inserting the instrument therethrough. <IMAGE>