ARTICULATION PROSTHESIS Russian patent published in 2003 - IPC

FIELD: medical engineering. SUBSTANCE: device has fixed sleeve, central axle, movable sleeve, roller coupling having race, hub and rollers rotating in opposite directions, pushers and lever. Two additional pushers are available. Both main and additional pushers have holes for making engagement with roller axles rotating in the same direction and avoiding engagement with roller axles rotating in the opposite direction. Pushers are connected to each other in pairs and to the corresponding axles of rollers rotating in opposite directions. Roller length is equal to hub width. The pushers are mounted on the hub rigidly attached to the fixed sleeve having lever mounted thereon. EFFECT: excluded asymmetric loading state.