Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Leg – Foot
Patent
1987-12-21
1990-01-09
Apley, Richard J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Leg
Foot
A61F 266
Patent
active
048925543
ABSTRACT:
A prosthetic foot includes an ankle member, a heel member and an elongate metatarsal-toe member coupled to each other for relative pivotal movement resisted by resilient pads engaged between the respective members. The undersides of the heel and toe members are concavely arched, the length of the arch duplicating that of a natural foot of the same size, with the center of the arch vertically aligned with the center of gravity of the amputee when in a standing, foot-flat position. The toe member is partially bifurcated at its forward end to provide independently flexible toe sections at the inner and outer sides of the foot, achieving a stable, three-point support matching that of a natural foot.
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patent: 1767868 (1930-06-01), Barghausen
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patent: 2475372 (1949-07-01), Catranis
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patent: 4605417 (1986-08-01), Fleischauer
patent: 4652266 (1987-03-01), Truesdell
Apley Richard J.
Permut Steven L.
Prizant James
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