Patent ID: 7771395

Claim:
A surgical device having an axis extending between a proximal end and a distal end, and having a working channel adapted to receive a surgical instrument, comprising: a valve housing disposed along the working channel; a valve assembly disposed in the valve housing and adapted to form an instrument seal with the surgical instrument when the surgical instrument is disposed in the working channel; a first tube having an elongate configuration, a proximal end, and a distal end, the first tube defining at least a portion of the working channel in the valve assembly; a flexible connector disposed between the valve housing and the tube, and facilitating pendulous movement of the tube; a septum valve carried by the first tube and having properties for forming the instrument seal; a second elongate tube coaxial with the first tube; a duckbill valve disposed at a distal end of the second tube; a connection feature coupling the first tube and the second tube; and a flexible connector coupling an end cap of the valve housing to the first and second tubes, and facilitating pendulous movement of the first and second tubes, wherein the septum valve is disposed at a first distance from the flexible connector, the first distance defining a first lever arm that facilitates movement of the first tube and the septum valve in response to movement of the surgical instrument within the working channel.