Knee and elbow brace
Bi-axial orthotic device
Double-locking ratchet for orthopedic brace
Knee brace Patent #: 4524764
ApplicationNo. 06/616059 filed on 06/01/1984
US Classes:602/16, With hinge or pivot16/354, Including toothed gear16/375, Adjustable or resilient403/62, Parallel rotary403/84, At selected angle74/109, Rack and pinion74/526Stops
ExaminersPrimary: Crowder, Clifford D.
Attorney, Agent or Firm
International ClassA61F 5/01 (20060101)
AbstractAn orthopedic hinge is polycentric and employs a rack cooperating with pinions formed at the ends of the hinge arms. A special arrangement for limiting rack displacement is effective to selectively clamp the hinge arms at a given arm angle or to permit movement within a limited range of allowable angles.