Muscle stimulating apparatus

Details Muscle stimulating apparatus Muscle stimulating apparatus

1978-03-30

1979-12-11

Kamm, William E.

Surgery

Truss

Pad

128908, 128423R, A61N 136

Patent

active

041778197

ABSTRACT:
The disclosure teaches an electronic apparatus for stimulating the muscles of a patient by disposing electrodes on the outer surface of the patient in the vicinity of the muscles. The stimulating wave consists of a composite signal comprising bursts of a sine wave, having a frequency greater than 500 Hz, and preferably in the range of 2000-3000 Hz, modulated by a signal at a frequency less than 500 Hz, and preferably in the range of 40-60 Hz. The bursts are applied for 2-20 second periods separated by 2-50 second rest intervals. The apparatus includes safety circuits which sense the current to the electrodes and turn off the stimulating waves on detection of a no load or overload condition. The apparatus also includes a power amplifier with a gain control and a switch associated with the gain control such that, if, at the beginning of any treatment, the gain control is not set to zero, stimulating waves will not be applied.

REFERENCES:
patent: 2823678 (1958-02-01), Luftman et al.
patent: 3050695 (1962-08-01), Duvall
patent: 3077884 (1963-02-01), Batrow et al.
patent: 3478744 (1969-11-01), Leiter
patent: 3489152 (1978-01-01), Barbara
patent: 3645267 (1972-02-01), Hagfors
patent: 3718132 (1973-02-01), Holt et al.
patent: 4068669 (1978-01-01), Niemi
patent: 4102348 (1978-07-01), Hihara et al.

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