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Method of neurostimulation of distinct neural structures using single paddle lead to treat multiple pain locations and multi-column, multi-row paddle lead for such neurostimulation

  • US 7,979,131 B2
  • Filed: 01/26/2007
  • Issued: 07/12/2011
  • Est. Priority Date: 01/26/2006
  • Status: Active Grant
First Claim
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1. A method of treating chronic pain in a patient with spinal cord stimulation, wherein (i) the chronic pain includes a first pain component within a first bodily sub-region of the trunk of the patient, (ii) the chronic pain includes a second pain component within a second bodily sub-region of the lower extremities of the patient separated from the first bodily sub-region by intervening bodily sub-regions, (iii) a stimulation lead is implanted within the epidural space of the patient, the method comprising:

  • selecting from the stimulation lead a first set of stimulation parameters including one or more first active electrode to treat chronic pain in the first bodily sub-region;

    selecting from the stimulation lead a second set of stimulation parameters including one or more second active electrode to treat chronic pain in the second bodily sub-region;

    wherein the stimulation lead comprises a paddle structure with at least 10 electrodes disposed in at least five mutually adjacent columns and at least two adjacent rows on the paddle structure;

    controlling a pulse generator to apply electrical pulses to the patient through the stimulation lead according to the first and second set of stimulation parameters, wherein;

    (i) a first electrical field, created by stimulation pulses having the first set of stimulation parameters applied through the first active electrode, has a restricted spatial resolution to stimulate a first set of one or more dorsal column fibers;

    (ii) a second electrical field, created by stimulation pulses having the second set of stimulation parameters applied through the second active electrode, has a restricted spatial resolution to stimulate a second set of one or more dorsal column fibers;

    wherein, in response to the applied electrical pulses, the patient experiences paresthesia in the first and second bodily sub-regions and the patient experiences minimal sensory effects from the applied electrical pulses in the intervening bodily sub-regions.

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