Adjustable polycentric orthopedic appliance hinge
Patent 4599998 Issued on July 15, 1986. Estimated Expiration Date: 
June 1, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 1, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 304696 505382 552143 1330298 Knee and elbow brace Knee brace Knee orthosis Bi-axial orthotic device Double-locking ratchet for orthopedic brace Knee brace Patent #: 4524764 InventorApplicationNo. 06/616059 filed on 06/01/1984US 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 pinion74/526StopsExaminersPrimary: Crowder, Clifford D.Attorney, Agent or FirmInternational 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. | |
