Patent ID: 8226552

Claim:
A surgical retractor for retracting an opening in a biological body wall, comprising, a substantially noncompliant 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 substantially noncompliant outer ring being adapted to roll over itself around the annular axis to roll the sleeve around the outer ring to retract and seal the opening in the body wall, wherein the substantially noncompliant outer ring comprises: a first, outer portion having at least one lumen; and wherein the at least one lumen of the first, outer portion of the outer ring of the surgical retractor has two lumens, and further comprises: a substantially noncompliant hoop positioned in each of the two lumens of the first, outer portion of the outer ring of the surgical retractor, each of the substantially noncompliant hoops having a split.