Biodex

Walter Gezari

Robert Stephen Stidd

Daniel Y Gezari

James M Reiss

A muscle exercise and/or rehabilitation apparatus includes a fixture against which a force can be applied; a sensor which senses the force applied to the fixture and produces a load signal corresponding thereto; a speed detector which produces a velocity signal corresponding to the speed of the fixture; a servo motor which produces a rotational output of an output shaft thereof; a closed loop servo circuit which controls the motor in response to the load signal and the velocity signal to control rotation of the output shaft of the servo motor; and a conversion device connected between the fixture and the output shaft of the servo motor for translating the rotational output of the output shaft to linear motion of the fixture, the conversion device including a frame formed by a base, two spaced vertical support bars extending upwardly from the base, and an upper cap securing upper ends of the vertical support bars together, two vertical guide rods supported by the frame, a slide movable along the guide rods in such linear motion, an operational pulley rotatably connected with the output shaft of the servo motor, and a rope secured to the slide and wrapped about the pulley for controlling movement of the slide in the linear motion in response to the output shaft of the servo motor.

Muscle exercise and/or rehabilitation apparatus using linear motion

A back attachment for a muscle exercise and/or rehabilitation apparatus of the type having a motor driven output shaft with a central axis, includes seat for supporting a person thereon; a back exercising frame connected to the output shaft for pivoting the back of the person about the central axis when the person is seated in the seat; a support stand for fixedly supporting the seat at a downward angle of approximately 15 degrees toward a front portion of the seat, regardless of the angle of pivot of the back exercising frame; securing straps for securing the person to the seat and back exercising frame; an adjustable foot rest connected to the seat for supporting the feet of the person, during pivoting the back exercising frame, the adjustable foot rest being adjustable along the length thereof toward and away from the seat; a lumbar support connected with the back exercising frame for supporting the lumbar region of the person about an axis offset from the central axis, during pivoting movement of the back exercising frame, in any selected one of a plurality of different positions; a scapula support for supporting the scapular region of the person; a scapular connection for adjustably connecting the scapula support to the back exercising frame; a cervical support for supporting the cervical spine of the person; and a cervical spine connection for connecting the cervical support to the back exercising frame with three degrees of freedom of adjustment.

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Rocky Point, NY, United States of America

Walter Gezari