The present invention relates to a novel limb-supporting frame which is movable and easy to be dismantled. Especially to a combination of a shank-supporting frame, an ankle-supporting frame, and a leg-supporting frame. The said frames are fixed by means of the threads of the frames, collars, and packing...http://www.google.sh/patents/US4463752?utm_source=gb-gplus-sharePatent US4463752 - Limb-supporting frame which is movable and easy to be dismantled
