Surgery – Truss – Perineal
Patent
1991-01-22
1993-05-18
Apley, Richard J.
Surgery
Truss
Perineal
128 25R, A61H 102
Patent
active
052111610
ABSTRACT:
A three axis passive motion exerciser which moves the patient's foot in dorsal/plantar, valgus/varus and abduction/adduction movements. A microprocessor provides signals to control motors which drive cradles and a plate in the desired motions. Potentiometers provide positional feedback information about the actual location of the cradles and the plate, with series resistors providing feedback of the actual motor drive current values. The microprocessor monitors the positions of two motions versus a master motion to keep the movements in synchronization. The movements are synchronized so that the end of the travel limit is reached for each axis simultaneously. The microprocessor further monitors the drive currents to prevent overcurrent conditions and the speeds to limit travel rates. A display and keyboard are provided to allow the operator to monitor and change operating parameters, such as travel limits, force limits and session times.
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Apley Richard J.
Compagnie Generale de Materiel Orthopedique
Leubecker John P.
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