Patent ID: 7909760

Claim:
A surgical access device, comprising: a wound retractor for retracting an opening in a biological body wall, the wound retractor having, an outer ring having an annular axis and adapted for juxtaposition with an outer surface of the biological body wall, an inner ring adapted for juxtaposition with an inner surface of the biological body wall, and a sleeve coupling the outer ring to the inner ring, the sleeve being adapted to traverse the opening in the body wall, wherein the outer ring has a neutral state, in which the outer ring is substantially noncompliant, and a transitional state, in which the outer ring is rolled over itself around the annular axis, thereby rolling the sleeve around the outer ring to retract and seal the opening in the body wall; and a gel cap adapted for direct attachment to the outer ring of the wound retractor in the neutral state, the gel cap having, a cap ring adapted to be coupled to the outer ring of the wound retractor, a lip disposed at a distal end of the cap ring, the lip curving radially inward from a wall of the cap ring and extending around a portion of a circumference thereof, a lever spaced from the lip of the cap ring and pivotably coupled to the cap ring, the lever pivoting on a plane that is perpendicular to a longitudinal axis of the cap ring, the lever comprising a flat, distal lip positioned at a distal end of the lever and lying in a plane that is positioned perpendicular to the longitudinal axis of the cap ring, and a gel pad coupled to the cap ring, the gel pad being made of a gel material, the gel pad including an access portion for providing a passage from external the body to a body cavity, the passage forming an instrument seal in the presence of an instrument inserted therethrough and a zero seal in the absence of an instrument inserted therethrough, wherein in an open state, the lever is pivoted outwardly, away from a body of the cap ring, and in a closed state, with the outer ring of the wound retractor positioned within the cap ring, the lever is pivoted toward the cap ring such that the distal lip of the lever protrudes radially inwardly from the body of the cap ring, and the lip of the cap ring and the distal lip of the lever abut the distal surface of the outer ring of the wound retractor, thereby securing the gel cap to the wound retractor.