Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Leg – Adjustable shank or thigh
Patent
1993-05-25
1995-06-20
Willse, David H.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Leg
Adjustable shank or thigh
623 49, 623 53, 623 27, 623 54, 403 84, A61F 262, A61F 266
Patent
active
054257808
ABSTRACT:
A prosthetic device for simulating the movements of a natural human ankle and foot throughout all the phases of the gait cycle and which is adapted for the removable attachment to the stump of a lower extremity amputee includes an ankle block member having an aperture in which a universal joint is disposed for allowing the ankle block member to simulate the movements to the anatomical limits of the natural human ankle. Attached to the universal joint and extending upwardly therefrom is an elongated tibial component having an upper tibial end to which is attached a tibial shock member for shock absorption of the prosthetic device during phases of the gait cycle when the prosthetic device strikes any walking surface. The prosthetic device further includes a lower and an upper mounting block which are both attached to a receiver mounted to the flat undersurface of the stump, adjustment of the lower mounting block permitting the pitch of the prosthetic device to match the pitch of the amputee's natural leg so that the prosthetic device can be aligned in gait with the amputee's natural leg for normal walking upon any terrain or surface.
REFERENCES:
patent: 1063175 (1913-05-01), Anderson
patent: 1285871 (1918-11-01), Winn
patent: 1316347 (1919-09-01), Bidou
patent: 1552569 (1925-09-01), Schurman
patent: 2699554 (1955-01-01), Comelli
patent: 3196463 (1965-07-01), Farneth
patent: 3649968 (1972-03-01), Prahl
patent: 3790965 (1974-02-01), Gelbenegger
patent: 5226918 (1993-07-01), Silagy et al.
patent: 5326352 (1994-07-01), Ferrier
Flatt Wayne P.
Lorence Walter J.
Atwell George C.
Willse David H.
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