Electrotherapeutic device with modulated dual signals

Details Electrotherapeutic device with modulated dual signals Electrotherapeutic device with modulated dual signals

1976-12-20

1978-01-31

Kamm, William E.

Surgery

Truss

Pad

128422, A61N 136

Patent

active

040710335

ABSTRACT:
Stimuli are initiated by a master oscillator, whose output is split and applied to two frequency dividers which divide the frequency by different numbers. The two frequencies thus derived are applied to waveshapers to provide a desired waveform such as a half sinewave, and also each signal is further divided by a common number. The two signals are then amplified, and applied to the body through a probe whose contacts are arranged so that the two stimuli currents are orthogonal to each other. The two high frequency signals hetrodyne within the human muscle to produce a single low frequency stimuli, useful for the production of muscle contraction, hyperemia, electroanalgesia and muscle relaxation.

REFERENCES:
patent: 2622601 (1952-12-01), Nemec
patent: 3096768 (1963-07-01), Griffith, Jr.
patent: 3774620 (1973-11-01), Hansjurgens
patent: 3794022 (1974-02-01), Nawracaj et al.
patent: 3835833 (1974-09-01), Limoge
patent: 3918461 (1975-11-01), Cooper
patent: 3958577 (1976-05-01), Rodler

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