Knee laxity evaluator and motion module/digitizer arrangement
Patent 4571834 Issued on February 25, 1986. Estimated Expiration Date: 
May 16, 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.
May 16, 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 ReferencesDynamic joint motion analysis technique Instrument for measuring the range of motion associated with a human body joint Angular position sensors Patent #: 4486955 InventorsAssigneeApplicationNo. 06/735080 filed on 05/16/1985US Classes:33/1PT, Angular position transducer33/512, Human600/595Body movement (e.g., head or hand tremor, motility of limb, etc.)ExaminersPrimary: Little, WillisAttorney, Agent or FirmInternational ClassesA61B 5/11 (20060101)G01B 7/30 (20060101) G01B 7/004 (20060101) AbstractThe invention relates to a knee laxity evaluator which consists of an instrumented seat, a restraint means for restraining the thigh of a patient to the instrumented seat, a motion module for measuring motion of the unrestrained part of the leg relative to the thigh of the patient, and processor means for analyzing outputs of the instrumented seat and the motion module to provide indications of applied force and relative motion. The invention also relates to a specific motion module/digitizer combination which can be used as a part of the knee laxity evaluator, or which can be used independently or in alternate systems. The invention also relates to a novel dynanometer for use in the knee laxity evaluator which includes a triple beam arrangement. | |
