Artificial foot with members to help wearer maintain steady bala

Details Artificial foot with members to help wearer maintain steady bala Artificial foot with members to help wearer maintain steady bala

1994-02-17

1996-04-16

Willse, David H.

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

Leg

Foot

623 53, A61F 266

Patent

active

055078389

ABSTRACT:
An artificial foot includes a foot-shaped casing that has an open top, a closed bottom, a toe portion, a heel portion and a positioning projection that is formed in the casing and that extends upwardly from the closed bottom. A flexible muscle member is disposed in the casing and has an upwardly protruding curved intermediate section mounted to the positioning projection, and first front and rear sections that respectively extend from the intermediate section frontwardly and rearwardly into the toe and heel portion. A rigid stop member has a weight bearing section that covers the open top of the casing, a curved bottom part riding on the intermediate section of muscle member, and a second front section that extends downwardly and frontwardly into the toe portion so as dispose the same above the first front section of the muscle member. A second rear section of the stop member extends into the heel portion so as to dispose the same above the second rear section of the muscle member.

REFERENCES:
patent: 61780 (1867-02-01), Watson
patent: 969196 (1910-09-01), Rowley
patent: 4306320 (1981-12-01), Delp
patent: 4499613 (1985-02-01), Yarrow
patent: 4652266 (1987-03-01), Truesdell
patent: 4721510 (1988-01-01), Cooper et al.
patent: 5062859 (1991-11-01), Naeder
patent: 5156632 (1992-10-01), Wellerhaus
patent: 5376139 (1994-12-01), Pitkin
Hosmer Dorrance Corporation Quantun Foot Brochure.

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