Four-point anterior cruciate ligament brace
Patent 4697583 Issued on October 6, 1987. Estimated Expiration Date: 
January 29, 2005. 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.
January 29, 2005. 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 Re30501 2144641 2179903 2467907 3817244 3901223 Hinge for knee brace Knee and elbow joint protector Knee stabilizer Knee brace InventorsAssigneeApplicationNo. 06/696185 filed on 01/29/1985US Classes:602/26, Knee602/16With hinge or pivotExaminersPrimary: Burr, Edgar S.Assistant: Cohen, Moshe I. Attorney, Agent or FirmInternational ClassA61F 5/01 (20060101)AbstractA knee brace for externally replacing the function of a torn anterior cruciate ligament. The brace has femur and tibia levers hinged proximal the knee joint. The femur lever has an upper high cuff which bears against the front of the thigh and a lower strap which applies anterior force to the back of the thigh proximal the knee, while the tibia lever has a lower calf cuff which bears against the back of the calf and an upper strap which applies posterior force to the front of the tibia proximal the knee. Thus, the two straps apply a differential force couple forwardly to the femur and rearwardly to the tibia proximal the knee joint which serves the anterior cruciate ligament function. A resilient tubular undersleeve anchors the brace against downward migration on the leg. | |
