Electronic pain control with scanned output parameters
First Claim
Patent Images
1. A transcutaneous electrical nerve stimulator for pain control comprising:
- means for generating a pulse signal;
respective means for continuous, automatic variation, through respective predetermined ranges, of the pulse signal parameters of output pulse width, and output pulse amplitude; and
means, responsive to said respective means, for intermittently producing, for a given set of nerves, an output stimulation signal employing a signal amplitude--pulse width combination, and duration of that combination, which is adequate to produce requisite pain control effect.
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Abstract
A first oscillator dictates the pulse duration and frequency of stimulating signals; the oscillator output wave form is coupled to an output amplifier stage, and thence to the patient. A scanning oscillator provides a substantially linear ramp voltage, which in turn controls pulse duration, pulse frequency, and pulse intensity modulators. In turn, these modulators appropriately establish conditions within the first oscillator and the output stage whereby the output parameters are scanned through respective predetermined ranges, thereby periodically achieving optimum stimulating conditions.
54 Citations
9 Claims
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1. A transcutaneous electrical nerve stimulator for pain control comprising:
- means for generating a pulse signal;
respective means for continuous, automatic variation, through respective predetermined ranges, of the pulse signal parameters of output pulse width, and output pulse amplitude; and
means, responsive to said respective means, for intermittently producing, for a given set of nerves, an output stimulation signal employing a signal amplitude--pulse width combination, and duration of that combination, which is adequate to produce requisite pain control effect. - View Dependent Claims (2, 3)
- means for generating a pulse signal;
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4. A transcutaneous electrical nerve stimulator for pain control comprising:
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a. first oscillator means for producing a signal having variable pulse rate, pulse amplitude, and pulse duration output parameter ranges within respective, effective nerve stimulating ranges; b. second oscillator means having a second output rate at least an order of magnitude slower than the rate of said first oscillator; c. control means, responsive to said second oscillator means, for selectively, independently varying the respective output parameters of said first oscillator means at said second rate; and d. output means, responsive to said control means for intermittently generating, for a given set of nerves, nerve stimulating signals employing a signal amplitude--pulse width combination, and duration of that combination, which is adequate to produce requisite pain control effect. - View Dependent Claims (5, 6, 7, 8, 9)
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Specification