Patent ID: 7963952

Claim:
A catheter sheath for retrieving an object in a body, comprising: an expandable distal end, the expandable distal end being a tube including a first layer and a second layer, wherein the first layer is bonded to the second layer, the second layer is positioned outside of the first layer, the first layer comprises a slit that extends from the distal edge of the first layer, a portion of the slit is not parallel to the longitudinal axis of the tube, and the outer surface of the first layer does not contact the inner surface of the first layer, wherein the second layer extends beyond the distal edge of the first layer to create an overhang; a proximal end including a port for the passage of objects into the catheter sheath; and a tubular percutaneous delivery component located between the proximal and distal ends that creates an uninterrupted conduit between the expandable distal end and the proximal end.