Patent ID: 7766824

Claim:
A surgical access apparatus, which comprises: an access member having a passageway therethrough and defining a central housing axis, and having a proximal end and a distal end; a first seal member mounted across the passageway, the first seal member including an inner seal portion and an outer seal portion, and defining proximal and distal end faces, the inner seal portion having inner surfaces defining an aperture dimensioned for reception of at least one of the hand or arm of a user in substantial sealed relation therewith and being arranged about a first seal axis when in an initial position of the first seal member in the absence of the at least one of the hand or arm, the outer seal portion including at least one expansible rib extending in a proximal direction from the proximal end face of the first seal member and a corresponding at least one recess defined within the distal end face of the first seal member aligned with the at least one expansible rib, the at least one expansible rib and the at least one corresponding recess arranged to extend radially toward and away from the central housing axis along a general line of intersection with the central housing axis, the at least one expansible rib and the at least one corresponding recess arranged to define an undulation within the outer seal portion adapted to facilitate movement of the aperture to a displaced position radially displaced from the first seal axis during manipulation of the object within the first seal member; and a second seal member mounted adjacent the first seal member, the second seal member having an inner portion defining an aperture dimensioned for substantial sealed reception of the at least one of the hand or arm and being arranged about a second seal axis radially displaced from the first seal axis when in an initial position of the second seal member in the absence of the at least one of the hand or arm.