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Nerve stimulator and method

  • US 20050267545A1
  • Filed: 05/25/2004
  • Published: 12/01/2005
  • Est. Priority Date: 05/25/2004
  • Status: Active Grant
First Claim
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1. A device for improved nerve stimulation via a percutaneous insulated needle for the performance of therapeutic interventions targeting nerves within living tissue, comprising a needle electrode, which is percutaneous and is insulated from the tissue except at the tip of the electrode;

  • a return electrode;

    a pulse generator;

    a background waveform generator;

    a pulse conditioning circuit in series with the electrical path between the two electrodes through the tissue;

    sensors to detect electrical characteristics of the waveforms generated by the two generators; and

    a controller for acquiring user parameter choices, for acquiring real-time measurements of the pulse and waveform, for calculating other waveform characteristics from the measurements, for calculating tissue characteristics from the waveform characteristics, and for adjusting parametric characteristics of generators and the conditioning circuit, to produce a desired waveform across the electrodes and to generate various measured and calculated values for the benefit of the practitioner who is advancing the needle electrode into the tissue;

    wherein the controller is programmed to adjust the parametric characteristics of the generators and the conditioning circuit in order to produce a desirable waveform across the electrodes by sampling the electrical characteristics of the waveforms using the sensors.

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