Patent ID: 8113235

Claim:
An apparatus for facilitating prosthesis donning and doffing comprising: a body including a body cavity, at least one internal vent, and at least one external vent; a core, said core including a core tip, a core cavity, and a diaphragm interface, said core located at least partially within said body cavity; a core spring located at least partially internal to said core cavity, a first end of said core spring in contact with a surface of said core cavity, a second end of said core spring in contact with a surface of said body cavity; an operator, said operator including an operator aperture; an operator retainer, said operator retainer including a base and a head, an external surface of said head coupled to an interior surface of said operator aperture, said base including a recess and an operator retainer protrusion, said operator retainer protrusion located external to the periphery of said recess, an uppermost point of said recess in contact with said core tip when said operator is axially centered relative to said apparatus, an inwardly facing surface of said operator retainer protrusion in contact with said core tip when said operator is indexed to an off-center position, said operator maintained in an axially centered position due to said contact of said recess with said core tip, said operator maintained in an off-center position due to said contact of said inwardly facing surface of said operator retainer protrusion with said core tip; and a diaphragm, said diaphragm including a diaphragm aperture, said core passing through said diaphragm aperture, said diaphragm in contact with said diaphragm interface when said operator is axially centered relative to said apparatus, said diaphragm separated from said diaphragm interface when said operator is indexed to an off-center position.