Surgery: splint – brace – or bandage – Orthopedic bandage – Splint or brace
Patent
1991-04-30
1992-05-12
Apley, Richard J.
Surgery: splint, brace, or bandage
Orthopedic bandage
Splint or brace
128905, 128733, 128779, 482 4, 482 51, 602 16, 623 53, A61F 500
Patent
active
051122960
ABSTRACT:
A biofeedback activated orthosis for foot-drop rehabilitation is provided including a lifting mechanism, a control circuit, a muscle activity sensing mechanism, and an electrogoniometer. The lifting mechanism lifts a foot through the swing phase of a gait cycle by way of a drive motor mechanism which pulls a cable passing between a foot brace and a shin brace. The drive motor mechanism allows the cable to unwind upon heel-strike by way of a slip coupling. The drive motor mechanism is controlled by a control circuit which assimilates and processes an incoming electromyographic (EMG) signal from the muscle activity sensing mechanism detected by EMG electrodes placed on the skin above the dorsiflexor muscles of the user. The control circuit also processes a leg position information signal obtained by a radial resistor attached to a knee brace strapped to the knee for sensing the angular position of the lower leg. Activation of the drive motor mechanism will not occur until both processed signals exceed their respective threshold levels set in advance by the user.
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Banner Verdell M.
Beard John
Khan Mushahid
Leonard Norman J.
Apley Richard J.
Kiesel William David
The Board of Supervisors of Louisiana State University
Tucker Robert C.
Weinhoffer Susan L.
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