C-shaped spring member for prosthetic limbs

Details C-shaped spring member for prosthetic limbs C-shaped spring member for prosthetic limbs

1996-03-13

1998-05-05

Willse, David H.

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

Leg

Socket holder

623 38, 623 46, 623 52, A61F 262, A61F 266

Patent

active

057467730

ABSTRACT:
A stance phase flexion device for a prosthesis comprises a composite C-shaped spring member formed from a plurality of thermoset synthetic resin-impregnated high strength carbon filament sheets molded together in a compression mold. The spring member includes a standard hole pattern located in an upper leg of the spring and a standard hole pattern on the lower leg of the spring, for connecting the spring between adjacent prosthetic components for simulating normal flexion between the adjacent components. The C-shaped member is normally rigid in a rest position maintaining its C-shaped configuration. The C-shaped member has spaced apart upper and lower legs that elastically flex with energy absorbing compliance under a load tending to move the upper and lower legs together. The C-shaped member essentially resists elastic flexion in lateral directions and resists torsion loads.

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O & P Business News, Mar. 1, 1996, M+ Introducing the Seattle C Stance.COPYRGT., pp. Cover and 21.

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