Surgery: splint – brace – or bandage – Orthopedic bandage – Splint or brace
Patent
1992-07-20
1993-07-27
Bahr, Robert
Surgery: splint, brace, or bandage
Orthopedic bandage
Splint or brace
602 26, 623 37, A61F 500
Patent
active
052306968
ABSTRACT:
A polycentric variable axis hinge for use in an orthopedic knee brace to provide a mechanical joint between the femoral and tibial cuffs of the brace. The hinge includes a femoral stem which is attached to the femoral cuff and which extends downwardly from the femoral cuff, and it also includes a tibial stem attached to the tibial cuff and extending upwardly from the tibial cuff. The ends of the two stems overlap one another to provide a joint. The distal end of the femoral stem has first and second variable radii slots formed in it, the slots being positioned one above the other and extending in the anterior-posterior direction, and the lower slot being longer than the upper slot. A first bearing pin is mounted on the distal end of the tibial stem, and it is received in the upper slot. Two additional bearing pins are mounted on the distal end of the tibial stem and are received in the lower slot. The action is such that angular movement of the stems relative to one another causes them to slide, glide and rotate relative to one another to replicate the actual movement of the knee joint of the user as the leg is bent and straightened.
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Nauert Richard
Rothenberg Russell A.
Silver Daniel M.
Bahr Robert
Beecher Keith D.
Meindl Beverly A.
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