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Method and apparatus for electrical stimulation

  • US 6,944,503 B2
  • Filed: 07/12/2002
  • Issued: 09/13/2005
  • Est. Priority Date: 07/12/2001
  • Status: Expired due to Term
First Claim
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1. Apparatus for applying pulsed electrical stimulation to a human or animal subject, the apparatus comprising a control circuit having a number of output terminals each of which is connectable, in use, to at least one of an array (greater than two) of electrodes placed on and/or in the subject;

  • the control circuit including means for providing stimulation pulses to two or more of the electrodes simultaneously whereby the pulses are subdivided into a plurality of contiguous time periods, and for each time period, each output terminal may be connected as either anode, cathode or neither to provide discrimination between stimulated and non-stimulated regions of tissue and/or nerve types of the subject by controlling the time-summated current flow applied via each electrode during each pulse.

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