KNEE JOINT ENDOPROSTHESIS Russian patent published in 1999 - IPC

FIELD: medicine; orthopedics; traumatology. SUBSTANCE: knee joint provides for displacement of femoral and tibial components relative to each other with preset trajectory of instantaneous rotary centers of man's healthy knee joint. Endoprosthesis construction includes boss positioned in femoral part of endoprosthesis. Two axles pass through boss. Ends of axles move along four shaped grooves arranged in pairs in walls of body of endoprosthesis femoral part. Boss is coupled loosely to tibial part through bearing. EFFECT: provision for the most favorable modes of operation of knee muscles. 2 dwg