Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Leg – Socket holder
Patent
1999-03-25
2000-08-22
Willse, David H.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Leg
Socket holder
623 38, A61F 280
Patent
active
061065595
ABSTRACT:
The stump of an amputee's limb receives a sleeve which is inserted into a formed plastic socket, and a locking stud with axially spaced peripheral grooves projects from the sleeve. A coupler is mounted within the bottom of the socket and has a top conical surface with inclined tapering guide grooves which extend to a tubular center bushing slidable within a tubular fitting. A set of circumferentially spaced locking balls are confined within holes in the bushing and move between locking positions projecting into one of the grooves of the locking stud and retracted release positions in response to axial movement of the bushing within the fitting. An actuator stem projects laterally from the coupler and has cam surfaces effective to rotate a pair of actuating pins to shift the bushing and release the locking balls in response to axial or rotary movement of the actuator stem. The actuator stem may also be rotated to a position where the actuator stem is locked against axial movement and accidental release of the locking stud. The actuator stem also has a gripping knob which provides an indication of the stem's rotational position.
REFERENCES:
patent: 5226918 (1993-07-01), Silagy et al.
patent: 5376129 (1994-12-01), Faulkner et al.
patent: 5662715 (1997-09-01), Slemker
patent: 5702489 (1997-12-01), Slemker
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