| 摘要 |
An orthopedic hinge joint mechanism for proteciton of unstable or injured knees. Four coacting members are rotably fastened each to the next in a series. The first and third members lie in one plane and the second and fourth lie in an adjacent parallel plane. The members in the same plane abut in gears. As a result of this construction the hinge moves symmetrically about its center and effectivley simulates the complex action of the human knee joint.
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