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Implantable generator having current steering means

  • US 20040034394A1
  • Filed: 08/15/2003
  • Published: 02/19/2004
  • Est. Priority Date: 01/07/1999
  • Status: Active Grant
First Claim
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1. An implantable pulse generator for use with an array of electrodes implantable within a patient so as to lie adjacent selected nerve tissue, the implantable pulse generator being characterized by having current-steering capability, the implantable pulse generator comprising:

  • a pulse generator responsive to programming signals for generating stimulation currents;

    means responsive to the programming signals for selectively applying the stimulation currents to at least two electrodes within the array of electrodes, said at least two electrodes comprising a first group of electrodes; and

    current steering means responsive to directional signals for steering the stimulation currents from the first group of electrodes to a second group of electrodes;

    wherein stimulation currents flowing between electrodes within the first group of electrodes and steered to electrodes within the second group of electrodes as controlled by the directional signals.

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