Edward C Nawracaj DeceasedCedar Lake, IN
Edward Nawracaj Phones & Addresses
Cedar Lake, IN
1443 149Th St, Hammond, IN 46327
Parsippany, NJ
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Us Patents
Electrotherapeutic Device With Modulated Dual Signals
US Patent:
4071033, Jan 31, 1978
Filed:
Dec 20, 1976
Appl. No.:
5/752597
Inventors:
Edward P. Nawracaj - Burr Ridge IL
Henry A. Greit - Chicago IL
Henry A. Greit - Chicago IL
International Classification:
A61N 136
US Classification:
128420A
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.
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