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Leads with tip electrode for electrical stimulation systems and methods of making and using

  • US 8,792,993 B2
  • Filed: 05/31/2013
  • Issued: 07/29/2014
  • Est. Priority Date: 06/01/2012
  • Status: Active Grant
First Claim
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1. An implantable electrical stimulation lead, comprising:

  • a lead body comprising a distal portion, a distal tip, and a proximal portion; and

    a plurality of electrodes disposed along the distal portion of the lead body, the plurality of electrodes comprising a tip electrode disposed on the distal tip of the lead body, the tip electrode having a conductive base and a separate conductive plug attached to the base, wherein a portion of the base and the plug are exposed on an exterior of the lead and the base defines an interior lumen closed at one end by the plug, wherein a portion of the lead body extends into the interior lumen of the base;

    a plurality of terminals disposed along the proximal portion of the lead; and

    a plurality of conductors, each conductor electrically coupling at least one of the electrodes to at least one of the terminals.

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