Orthologic Corp.

Jeffrey J Culhane

John H Saringer

Alexander G Solomon

A continuous passive motion (CPM) device for the synovial joints and surrounding soft tissue of the human body, more specifically to the upper extremities. The device includes an upper arm support suitably fixed to a drive actuator and a adjustable forearm support attached to the rotational center of the drive actuator so that pivotal movement of the output causes the forearm support to pivot about an axis parallel to a longitudinal axis of the forearm support. Various cuffs are provided so a patient can secure their upper arm above the elbow and the upper forearm below the elbow to the device with the actuator located either forward of or behind the elbow. The rotational motion of pronation and supination is created by aligning the rotational center of the actuator output with the anatomical rotational center of the forearm. The rotational centers are concentric to minimize stresses on the affected limb. The relative rotational motion between the upper support and forearm support creates the passive anatomical motion of pronation and supination.

Continuous passive motion device for upper extremity forearm therapy

An active and continuous passive motion (CPM) devices for exercising and/or providing therapy to the upper and lower extremities comprising a frame, a disc pivotally mounted to the frame and hand or feet support members attached to the disc. A motor is provided and is coupled to the disc for rotating the disc in the active mode. A control circuit is provided for adjusting the speed of the disc in the passive mode and for adjusting the resistance to movement of the disc in the active mode.

Active/passive device for rehabilitation of upper and lower extremities

The present invention provides continuous passive motion (CPM) devices for joints. An ankle CPM device includes a lower leg support attached at its lower end to a semi-circular track. An actuator slides along the track and can be locked in any desired position on the track. A shaft is pivotally connected at one end thereof to the actuator and a shoe is attached at the other end thereof. When the actuator is positioned at the bottom of the track the ankle joint of the patient undergoes inversion/eversion motion. When the motor housing is rotated 90.degree. and positioned near the top of the track plantar/dorsi flexion movement is obtained. A combination of both types of joint movement are obtained for the actuator in intermediate positions. A wrist CPM device includes a brace for the forearm attached to a semi-circular track on which an actuator is mounted. A hand grip is mounted on a semi-circular bracket and a shaft extends between the actuator and a coupling slidably mounted on the semi-circular bracket. With the actuator positioned below the forearm, when the actuator pivots the shaft the wrist joint undergoes ulnar/radial deviation movement and when the motor is rotated 90.degree. and positioned at the side of the arm extension/flexion movement of the wrist joint is obtained. Positioning the actuator in intermediate positions produces wrist movement which is a combination of extension/flexion and ulnar/radial deviation of the wrist joint.

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Pickering, Canada

Jeffrey J Culhane