Patent ID: 7025747
Filing Date: 2006-04-11
Classification: A61B

Abstract:
1. A value assembly for use with a trocar to form a substantially fluid tight seal about instruments therein, which comprises: a housing defining a longitudinal axis and having a longitudinal passageway extending therethrough; a valve member mounted within the housing, the valve member having an opening therein adapted to sealingly engage an instrument introduced through the housing; and at least two stand-off elements mounted within the housing distal of the valve member, the stand-off elements adapted for pivotal movement between an initial position intersecting the longitudinal passageway of the housing and a pivoted position to permit passage of the instrument, the stand-off elements operatively connected to each other whereby pivotal movement of a first stand-off element causes corresponding and concurrent pivotal movement of a second stand-off element, the stand-off elements being normally biased to the initial position to engage the instrument to urge the instrument toward a generally aligned position with respect to an axis of the valve member.