A - Human Necessities – 61 – H
Patent
A - Human Necessities
61
H
128/7
A61H 1/02 (2006.01) A61H 1/00 (2006.01)
Patent
CA 2023505
Abstract A device for providing continuous passive motion therapy to a patient's wrist comprises a base removably attached to the forearm of the patient rearwards of the wrist for allowing the various pivoting motions thereof. The base includes a horizontal turntable which can be secured thereon in a selected position. A wheel driven by a motor is rotatably mounted on the turntable for rotation in a vertical plane. A motion transmission which is provided between the wheel and a handle includes a tubular shaft pivotally mounted at its ends to a trunnion extending from the base and to the handle. A telescopic rod is pivotally mounted at its first end eccentrically to an eccentric disk which in turn is eccentrically mounted on the wheel and parallel thereto. The telescopic rod is slidably engaged at its second end in the tubular shaft. The eccentric disk may be rotated relative to the wheel to vary the absolute eccentricity of the first end of the telescopic rod with respect to the rotation axis of the wheel and secured thereon in a desired position. The amplitude of the pivot of the elongated member can thus be selectively varied. The handle includes a universal joint mounted to the tubular shaft and a C-shaped shaft rotatably mounted to the universal joint and to a grip. Therefore, upon actuation of the motor, the wheel rotates along with the eccentric disk thereby causing the elongated member to pivot about the trunnion and to impart to the patient's hand a preselected pivoting motion about the wrist. The present invention can also be adapted for any other joint, such as an ankle.
Galbreath Andrew
Saringer John
Hill & Schumacher
Orthologic Corp.
Toronto Medical Corp.
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