Patent ID: 8491515

Claim:
A sealing sleeve sized and shaped for placement on a human extremity that is coupled to a prosthetic device to seal a transition zone between the human extremity and the prosthetic device, the sleeve comprising: a flexible tubular structure including a distal opening and a proximal opening, a pre-flexed section between the openings, a distal contact zone and a proximal contact zone adjacent to, and on opposing sides of, the pre-flexed section, and a distal end zone between the distal contact zone and the distal opening; wherein the distal contact zone and distal end zone conically taper toward the distal opening and extend over and form a first seal with an outer surface of the prosthetic device; wherein the proximal contact zone forms a second seal against the human extremity; wherein the distal end zone has a more significant taper than the distal contact zone; and wherein the flexible tubular structure includes an elastomer layer on an inner surface; wherein the pre-flexed section has a bulge on an extension side, and wherein said bulge lies on a kneecap of said human extremity and said bulge prevents pressure from being exerted on said kneecap when said extremity is flexed.