Artificial jointless foot

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Leg – Foot

Patent

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Details

623 53, A61F 266

Patent

active

050644386

ABSTRACT:
An artificial jointless foot comprises an incompressible core, preferably made of wood, the underside of which slopes upwards from the front to the rear and forms an upper connecting surface in the ankle region and which extends into the instep region of the foot with an extension decreasing in height towards the front, a heel wedge connected to the underside of the core and made of a soft plastic foam, with a skin-forming layer composed of a plastic foam and completely surrounding the arrangement comprising the core and heel wedge, with the exception of an upper connecting surface. The foot has good movement properties, while at the same time being of simple design and having desirable flexibility in the instep region. The core, beginning from its front edge on the connecting surface, extending into the instep region by an amount corresponding to less than half its length on the connecting surface. A flexible inner foot made of plastic foam extends into the toe region and is likewise enclosed by the skin-forming layer. The inner foot adjoins the front surface of the core and the front side of the heel wedge. The skin-forming layer is a soft, easily deformable plastic foam layer, the restoring forces of which are less than the restoring forces of the inner foot.

REFERENCES:
patent: 3940804 (1976-03-01), Benton
patent: 4007497 (1977-02-01), Haupt
patent: 4089072 (1978-05-01), Glabiszewshi
patent: 4360931 (1982-11-01), Hampton
patent: 4506395 (1985-03-01), Haupt
patent: 4555817 (1985-12-01), McKenrick
patent: 4652266 (1987-03-01), Truesdell
Campbell Childs, Inc., Phoenix, Oreg., U.S.A.; p. 1-9.
The Seattle Foot; Alignment and Installation Manual; Mrs. M+Ind., Seattle, Wash., pp. 1-8.
Van Nostrand's Scientific Encyclopedia, 1983, p. 1692.
Stedman's Medical Dictionary, 1966.
Herkimer, Herbert, "Engineers' Illustrated Thesaurus", 1952.

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