10 medical apparatus and prostheses, namely, breast prostheses, prostheses parts, prostheses shafts, orthoses, namely, custom-made and ready made knee orthoses, including individual parts therefor, namely, partially flexible thigh braces and lower leg braces, torsion-resistant frames, polycentric toothed guadrant joints, semi-elastic condylus truss pads, elastic washers for closing straps, closing straps and closing belts