A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
3/138
A61F 2/64 (2006.01) A61F 2/50 (2006.01) A61F 2/68 (2006.01)
Patent
CA 1261555
ABSTRACT OF THE DISCLOSURE A braked knee joint having a thigh part and a lower leg part which are provided with braking surfaces adapted to one another and which, because of the capacity for axial movement of the thigh part relative to the lower leg part, are pressed against one another during loading. The braking surfaces essentially have a contour which is circular in vertical section and which has a constant radius relative to the rota- tional axis. The joint includes a suitable stop to produce a jerk-free termination of the extension movement of the knee joint out of the flexed position. The stop is formed by providing the braking surface of the thigh part with a front end piece which is at a distance which increases from the rotational axis and is greater than the constant radius, and by providing a corresponding front end piece of the braking surface of the lower leg part so that, with increasing extension of the knee joint in the unloaded condition, a constantly increasing area of the braking surfaces comes into frictional contact and thus forms the stop.
510062
Kirby Eades Gale Baker
Otto Bock Orthopadische Industrie Besitz - Und Verwaltungs
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