Coil spring prosthetic foot

Details Coil spring prosthetic foot Coil spring prosthetic foot

1992-11-17

1995-08-22

Willse, David H.

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

Leg

Ankle

623 55, 623 24, A61F 266, A61F 270

Patent

active

054435285

ABSTRACT:
A prosthetic foot formed by one continuous coil spring which has a foot center coil section, a heel extension section, and a forefoot extension section. Lateral and medial and torsional movement are accommodated. Energy is absorbed and stored by the prosthetic foot during heel strike in the gait cycle, energy is transferred to the forefoot extension section during foot roll-forward to toe-off in the gait cycle, and energy is released to provide a propelling force on the prosthetic foot at toe-off in the gait cycle. An apparatus allowing the wearer of the prosthetic foot to feel by physical sensation forces being applied to the prosthetic foot is included in one embodiment.

REFERENCES:
patent: 428839 (1890-05-01), Gault
patent: 563247 (1896-07-01), Andrews
patent: 597465 (1898-01-01), Hagen
patent: 942521 (1909-12-01), Rowley
patent: 1071230 (1913-08-01), Hanger
patent: 1289580 (1918-12-01), Vincenti
patent: 1319471 (1919-10-01), Giebeler-Warke
patent: 1424264 (1922-08-01), Shrodes
patent: 1459564 (1923-06-01), Tracy
patent: 1502593 (1924-07-01), Shrodes
patent: 1617925 (1927-02-01), Shrodes
patent: 2036830 (1936-04-01), Rowley
patent: 2440075 (1948-04-01), Campbell
patent: 2443356 (1948-07-01), Mathis
patent: 2453969 (1948-11-01), Carter
patent: 2470480 (1949-05-01), Fogg
patent: 2475372 (1949-07-01), Cantranis
patent: 2475373 (1949-07-01), Catranis
patent: 2605475 (1952-08-01), Burger
patent: 2619652 (1952-12-01), Vesper
patent: 2749557 (1956-06-01), Riddle
patent: 3551914 (1971-01-01), Woodall
patent: 3754286 (1973-08-01), Ryan
patent: 3920610 (1975-11-01), Wagner
patent: 4306320 (1981-12-01), Delp
patent: 4328594 (1982-05-01), Campbell
patent: 4364128 (1982-12-01), Mummert
patent: 4446580 (1984-05-01), Furuya
patent: 4506395 (1985-05-01), Haiipt
patent: 4547913 (1985-10-01), Phillips
patent: 4636220 (1987-01-01), Ziegelmeyer
patent: 4645509 (1987-02-01), Poggi
patent: 4650492 (1987-03-01), Barkhorder et al.
patent: 4718913 (1988-01-01), Voisin
patent: 4721510 (1988-01-01), Cooper
patent: 4770662 (1988-09-01), Gianpapa
patent: 4808187 (1989-02-01), Patterson et al.
patent: 4822363 (1989-04-01), Phillips
patent: 4865612 (1989-09-01), Arbogast
patent: 4892553 (1990-01-01), Prahl
patent: 4892554 (1990-01-01), Robinson
patent: 4959073 (1990-09-01), Merlette
patent: 5037444 (1991-08-01), Phillips
patent: 5062859 (1991-11-01), Naeder
patent: 5066305 (1991-11-01), Firth
patent: 5112356 (1992-05-01), Harris
patent: 5116383 (1992-05-01), Shorter
patent: 5116384 (1992-05-01), Wilson
patent: 5139525 (1992-08-01), Krisltinsson
patent: 5246463 (1993-09-01), Gianpapa
"The Seattle Lightfoot" marketing brochure.
"The New Modular-III Flex-Foot and Flex-Walk II" marketing brochure.
"Carbon Copy System III" marketing brochure.

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