Portable controllable fluid rehabilitation devices

Details Portable controllable fluid rehabilitation devices Portable controllable fluid rehabilitation devices

1996-03-11

1998-01-27

Clark, Jeanne M.

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing fluid resistance

482 5, 482 44, 482 79, 482903, A63B 21008

Patent

active

057117462

ABSTRACT:
A portable controllable fluid device (20a) for rehabilitation of injured limbs, appendages and joints (33a). The rehabilitation device (20a) includes a first bracket (22a) for fixedly securing to a first body part, such as a lower leg (25), a second bracket (24a) for fixedly securing to a second body part, such as a foot (26), and a controllable fluid brake (27a) such as a magnetorheological fluid brake including a magnetorheological fluid contained therein having a carrier fluid and disbursed magnetic particles, attached between the first bracket (22a) and second bracket (24a). The controllable fluid brake (27a), preferably acts in a rotary fashion and provides resistive forces about an axis adjacent said body joint (33a) to exercise the muscles upon movement of said first bracket (22a) relative to said second bracket (24a) resulting from movement of the user's first body part relative to the second body part. The device (20a) is portable and can be used to rehabilitate, for example, a wrist, elbow, knee or ankle joint in the user's home. The device (20a) allows variable adjustment of the level of resistance felt by the rehabilitating user by adjusting a controller (28a). In another embodiment, feedback information is used to control the level of resistance according to a predetermined force/torque profile(s). A potentiometer (53d) provides the feedback information regarding position to the controller (28a).

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