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MYOELECTRIC_STIMULATOR

2014-11-14 23:40  
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MYOELECTRIC_STIMULATOR
Six-transistor amplifier having high-impedance differential input for commercial eeg or emg electrodes and gain of 10,000 from 5 to 10,000 cps drives modulator Q4-Q5 from decoupling transformer. Modulator makes stimulator (astable mvbr Q6-Q7) apply pulsating voltages to muscles of hand, to make hand open in response to signals picked up by electrodes ovel shoulder muscles, thereby bridging severed arm nerves.-L Vodovnik and W. D. McLeod, Electronic Detours of Broken Nerve paths,Electronics,38:19,p110-116.