| 摘要 |
FIELD: medical engineering. SUBSTANCE: device has two rotating parts having restricted ability to rotate due to arc-shaped guide members being available. Combined sliding and rotation takes place. Cam body connected to one of the rotating parts for instance crural one has two cams engageable with the arc-shaped guides. The latter are located in half-cups connected to the second rotating part being for instance femur. EFFECT: simplified exchange of worn working pieces; movement processes are varied when substituting working pieces. 6 cl, 5 dwg
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