Artificial foot for a leg prosthesis

Details Artificial foot for a leg prosthesis Artificial foot for a leg prosthesis

1989-08-15

1991-04-16

Green, Randall L.

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

Leg

Foot

A61F 266

Patent

active

050079387

ABSTRACT:
Within its plantar area, the artificial foot for a leg prosthesis is provided with a plate-shaped reinforcing member (10) embedded in the molded foot part. The member 10 includes two superimposed upper and lower leaf springs (15a, 15b) possessing different lengths, between which a carbon fiber-reinforced plastic leaf spring (18) is disposed extending. The latter extends into the ball of the foot area and is offset at the front end. Sliding inserts (17a, 17b) of polyethylene and each face of the plastic leaf spring and between the upper and lower leaf springs produce a constant metatarsal elasticity even during continuous stress.

REFERENCES:
patent: 2475372 (1949-07-01), Catranis
patent: 3890650 (1975-06-01), Prahl
patent: 4328594 (1982-05-01), Campbell et al.
patent: 4721510 (1988-01-01), Cooper et al.
patent: 4892553 (1990-01-01), Prahl

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