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Electrode array having concentric split ring electrodes and methods of making the same

  • US 9,248,277 B2
  • Filed: 10/27/2014
  • Issued: 02/02/2016
  • Est. Priority Date: 11/30/2009
  • Status: Active Grant
First Claim
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1. A device for electrical stimulation, comprising:

  • a lead body having a longitudinal surface, a circumference, and a distal end;

    at least one ring array disposed on the distal end of the lead body, each of the at least one ring array comprising at least three split ring electrodes; and

    an insulative material disposed between the at least three split ring electrodes;

    wherein each of the at least three split ring electrodes comprises a stimulating portion and a base portion coupled to the stimulating portion and having an end spaced-apart from the stimulating portion, the stimulating portion extending around a portion of the circumference of the lead body and the base portion extending uniformly in a circumferential direction, relative to the circumference of the lead body, away from the stimulating portion to the end of the base portion spaced-apart from the stimulating portion, wherein at least a portion of the base portion of each of the at least three split ring electrodes is disposed radially inward, and separated by a layer of the insulative material, from at least a portion of the stimulating portion of an adjacent one of the at least three split electrodes;

    wherein the device is configured and arranged for electrical stimulation.

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