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Electronic tissue stimulator with output signal controls

  • US 4,237,899 A
  • Filed: 09/26/1978
  • Issued: 12/09/1980
  • Est. Priority Date: 09/26/1978
  • Status: Expired due to Term
First Claim
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1. A transcutaneous electrical nerve stimulator for pain control comprising:

  • oscillator means for generating a stimulation control pulse signal having predetermined rate, pulse width, and pulse amplitude factors;

    output means for producing nerve stimulating pulse signals having parameters as respective functions of said factors;

    said output means comprising means for independently establishing and independently controlling the pulse rise time and pulse decay time of select pulses of said stimulating signal selectively to establish a stimulating signal waveshape to which given nerves are selectively responsive, thereby producing effective pain control with respect to said given nerves.

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