Patent ID: 8097042

Claim:
A double-wall prosthetic limb socket assembly comprising: a first substantially rigid inner-wall socket adapted to receive a patient's residual limb; and a second substantially rigid outer-wall socket slidingly and removably seating the first inner-wall socket therein with a resilient liner fitted over the first substantially rigid inner wall socket and interposing the first substantially rigid inner-wall socket and the second substantially rigid outer-wall socket, the second outer-wall socket including, a distal, circular base-plate; and a molded circumferential wall bonded to and extending proximally from the distal, circular base-plate; the circular base-plate including a vacuum port extending radially from a circumferential outer side of the base-plate in fluid communication with a vacuum channel extending through the circular base-plate and out through an outlet hole in a proximal side of the circular base-plate; whereby, when the vacuum port is coupled to a vacuum pump, the vacuum will help to draw the first inner-wall socket into the second outer-wall socket; wherein the first substantially rigid inner-wall socket and the second substantially rigid outer-wall socket comprise at least one of (a) substantially hard thermoset plastic and (b) layers of fabric-type material impregnated with cured resin; wherein the resilient liner comprises a substantially closed distal end and an open proximal end; and wherein the resilient liner is adapted to be rolled proximally over the first substantially rigid inner wall socket.