Prosthetic ankle

Details Prosthetic ankle Prosthetic ankle

1987-07-27

1988-12-20

Apley, Richard J.

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

Leg

Ankle

623 21, 403291, 403354, 464 78, 464185, A61F 266, A61F 264

Patent

active

047923407

ABSTRACT:
A prosthetic ankle having an elongated tubular shank, which provides bending. The shank is part of a monolithic ankle with the lower portion being a flexure joint. The flexure joint has a flexing post defined by an entrapment kerf. The entrapment kerf allows relatively free movement of flexure within defined limits in axial rotation, dorsi and plantar flexion, inversion and eversion. The kerf surfaces provide resistance to axial rotation during dorsiflexion.

REFERENCES:
patent: 2937053 (1960-05-01), Rigney
patent: 3700291 (1972-10-01), Hadland
patent: 3940804 (1976-03-01), Benton et al.
patent: 4547913 (1985-10-01), Phillips
patent: 4645509 (1987-02-01), Poggi et al.

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