This invention relates to a knee support device which enables a knee brace to track closely the movement of the tibia. In use, a complete knee brace comprises two of the knee support devices of this invention, one on each side of the leg. The knee support device comprises an upper and a lower elongated...http://www.google.sh/patents/US5038763?utm_source=gb-gplus-sharePatent US5038763 - Knee brace
