Prosthetic foot with enhanced heel control

Details Prosthetic foot with enhanced heel control Prosthetic foot with enhanced heel control

1995-04-11

1996-04-23

Willse, David H.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Leg

Foot

623 54, A61F 266

Patent

active

055099378

ABSTRACT:
A prosthetic foot keel comprising: (a) a generally S-shaped unitary spatula, defining a main forefoot leg, a rear leg, and an intermediate leg integrally joining the forefoot and rear legs; and (b) a generally C-shape heel, defining a top heel plate, a bottom heel plate, and an intermediate heel plate transversely integrally interconnecting the top and bottom heel plates; wherein said top heel plate is fixedly anchored against the underface of the spatula rear leg. A generally open pocket is defined by the heel and by the spatula intermediate and rear legs. The pocket opens both rearwardly of the foot keel and laterally outwardly thereof on the side opposite the intermediate heel part. The shape of the open pocket is resiliently deformable responsively to the cyclical loads sustained by the spatula forefoot leg and bottom heel plate during the wearer's gait.

REFERENCES:
patent: 2440075 (1948-04-01), Campbell
patent: 4865612 (1989-09-01), Arbogast et al.
patent: 5116385 (1992-05-01), Allard et al.
patent: 5219365 (1993-06-01), Sabolich
patent: 5258039 (1993-11-01), Goh et al.

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