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Determining nerve location relative to electrodes

  • US 10,448,889 B2
  • Filed: 04/26/2012
  • Issued: 10/22/2019
  • Est. Priority Date: 04/29/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • applying electrical stimulation to a nerve of a patient via each of a plurality of implantable electrodes arranged in at least one row and at different axial positions along an axial length of a lead, the lead and the plurality of implantable electrodes having an orientation transverse to the nerve and crossing proximate to the nerve to position one or more of the plurality of implantable electrodes in proximity to the nerve, wherein each of the plurality of implantable electrodes is coupled to an implantable electrical stimulator configured to generate the electrical stimulation to deliver stimulation therapy via at least some of the plurality of implantable electrodes;

    determining, respective intensity threshold levels for each of the plurality of implantable electrodes, the respective intensity threshold levels for each of the plurality of implantable electrodes including a first intensity threshold level corresponding to at least one of a perception stimulation threshold or a paresthesia stimulation threshold and a second intensity threshold level corresponding to an upper stimulation threshold of the nerve for electrical stimulation delivered by that respective electrode of the plurality of implantable electrodes, the determining comprising adjusting intensities of the electrical stimulation applied via each of the plurality of implantable electrodes to the first intensity threshold level corresponding to the at least one of the perception stimulation threshold or the paresthesia stimulation threshold and the second intensity threshold level corresponding to the upper stimulation threshold of the nerve; and

    mapping a location of the nerve relative to each of the plurality of implantable electrodes based at least in part on the respective intensity threshold levels determined for each of the plurality of implantable electrodes.

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