An above-knee prosthesis that allows the user to control the resistance of knee flexion or extension, and to voluntary lock and release the knee joint, at any and all bending angles, comprising a thigh frame assembly that receives a thigh stump; a leg frame assembly with foot attached; a hinge interconnecting...http://www.google.fr/patents/US6902585?utm_source=gb-gplus-shareBrevet US6902585 - Above-knee prosthesis with variable resistance knee joint
Above-knee prosthesis with variable resistance knee joint
