Apparatus for assisting muscular contraction
US4785813A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1986 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Feb 18, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/36003
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.