The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 1988
Filed:
Feb. 18, 1986
Jerrold S Petrofsky, Beavercreek, OH (US);
Wright State University, Dayton, OH (US);
Abstract
A system for assisting contraction of a partially paralyzed muscle. The system uses a pair of electrode terminals which sense voluntary EMG signals at the site of the muscle and periodically transmit appropriately corresponding higher level stimulation signals. Stimulation signals are generated by a pulsed stimulator operating under control of an amplifier arrangement connected to receive the EMG signals from the electrode terminals. A transistor switch interrupts the amplifier output in synchronism with the generation of stimulation signals. A pair of back-to-back diodes are positioned between the electrode terminals for limiting the signals which are applied to the amplifier.