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Apparatus and method for blocking activation of tissue or conduction of action potentials while other tissue is being therapeutically activated

  • US 20050149148A1
  • Filed: 02/10/2005
  • Published: 07/07/2005
  • Est. Priority Date: 05/17/2001
  • Status: Active Grant
First Claim
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1. Apparatus for producing a desired effect by activating tissue at a first predetermined site within a body and for reducing a corresponding undesired side effect by blocking activation of tissue or conduction of action potentials at a second predetermined site within the body, the apparatus comprising:

  • first generator means for producing low frequency stimulation;

    second generator means for producing high frequency and/or direct current pulse stimulation; and

    a first electrode operatively coupled to the first generator means, the first electrode being adapted to activate tissue at the first predetermined site by applying low frequency stimulation; and

    a second electrode coupled to the second generator means, the second electrode being adapted to block activation of electrically excitable tissue at the second site by applying high frequency stimulation or one or more direct current pulses, or both high frequency stimulation and one or more direct current pulses, at or near the second site such that the high frequency stimulation and/or the direct current pulses prevent the low frequency stimulation applied at the first site from activating the electrically excitable tissue, or causing conduction of action potentials, at the second site.

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