Locking prosthetic knee

Details Locking prosthetic knee Locking prosthetic knee

1976-02-17

1977-05-17

Frinks, Ronald L.

3 28, 3 29, A61F 104, A61F 108

Patent

active

040232158

ABSTRACT:
A prosthetic knee construction includes a single axis mechanism secured in a knee of rigid foam, wood, or similar material, and a leg shank pivotally secured to the lateral shaft of the mechanism. The shank is of hollow foam, wood, or similar construction, and includes a spaced pair of metal supports extending from the axis downwardly through the foam to a spool disposed in the middle of the shank. An elastic extension assist may be secured between the spool and the knee mechanism to resiliently urge the assembly toward full extension. The mechanism may be provided with a friction assembly impinging on the knee axis, and may be provided with a manually operated lock, as required according to the abilities and desires of the wearer.

REFERENCES:
patent: 37087 (1862-12-01), Cotty
patent: 1343297 (1920-06-01), Worman
patent: 2542567 (1951-02-01), Peters
patent: 2794987 (1957-06-01), Oliver
patent: 3440668 (1969-04-01), Dachs et al.

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