Patent ID: 8007473
Filing Date: 2011-08-30
Classification: A61B

Abstract:
1. A surgical portal apparatus for permitting access to a tissue site, which comprises: a portal member dimensioned for positioning within body tissue and defining a longitudinal axis, the portal member having a longitudinal passageway therethrough providing access to a tissue site, the portal member having a valve mount defining a major opening in communication with the longitudinal passageway; a primary valve mounted to the portal member, the primary valve adapted to move between a first position to substantially seal the major opening of the valve mount, and a second position displaced from the major opening to permit passage of a relatively broad surgical instrument through the major opening, the primary valve defining a minor opening dimensioned to receive a relatively narrow instrument; a secondary valve mounted to the portal member, the secondary valve adapted to move relative to the primary valve between an initial position substantially sealing the minor opening of the primary valve, and an actuated position displaced from the minor opening to permit passage of the narrow instrument and a lock member adapted to prevent the primary valve from opening upon introduction of the narrow instrument, the lock member including a disengagement surface biased radially inward for engaging the broad instrument such that the lock member is displaced against its bias to permit the primary valve to open to permit passage of the broad instrument.