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Systems and methods for making and using improved contact arrays for electrical stimulation systems

  • US 9,561,362 B2
  • Filed: 11/06/2015
  • Issued: 02/07/2017
  • Est. Priority Date: 11/10/2014
  • Status: Active Grant
First Claim
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1. An electrical stimulation lead comprising:

  • a lead body with a proximal portion, at least one distal portion, an outer surface, a circumference, and a longitudinal length;

    a plurality of contacts disposed along the lead body, the plurality of contacts comprisinga plurality of electrodes disposed along the distal portion of the lead body, anda plurality of terminals disposed along the proximal portion of the lead body;

    at least one segmented-contact set formed from at least some of the plurality of contacts, the at least one segmented-contact set comprising a plurality of segmented contacts that are each at least partially disposed along a particular longitudinal position of the lead and that each extend around less than the entire circumference of the lead body and that are not in electrical contact with one another, each of the plurality of segmented-contact sets comprising a first segmented contact and a second segmented contact, the first segmented contact and the second segmented contact each comprisinga stimulation portion having a stimulation surface exposed along the outer surface of the lead body, andat least one retention member coupled to the stimulation portion and disposed beneath the outer surface of the lead body,wherein the stimulation portion and the at least one retention member collectively form a loop of material that extends around a center transverse axis of the lead body;

    a first insulating member disposed between the stimulation portion of the first segmented contact and the at least one retention member of the second segmented contact;

    a second insulating member disposed between the stimulation portion of the second segmented contact and the at least one retention member of the first segmented contact; and

    a plurality of lead conductors electrically coupling the plurality of electrodes to the plurality of terminals.

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