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Anchoring units for implantable electrical stimulation systems and methods of making and using

  • US 9,610,435 B2
  • Filed: 05/22/2015
  • Issued: 04/04/2017
  • Est. Priority Date: 04/07/2009
  • Status: Active Grant
First Claim
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1. An implantable lead, comprising:

  • a lead body having a proximal end portion, a distal end portion, and an outer surface;

    a plurality of electrodes disposed along the distal end portion of the lead body;

    a plurality of terminals disposed along the proximal end portion of the lead body;

    a plurality of conductors electrically coupling the electrodes to the terminals; and

    at least one anchoring unit disposed along the lead body, each of the at least one anchoring unit comprisinga body configured and arranged for positioning along a portion of the outer surface of the lead body, the body having a first end and a second end and a longitudinal axis extending therebetween, the first end being configured and arranged for placement on the lead body so that the first end is positioned more distally on the lead than the second end;

    a plurality of anchoring members extending from the body of the anchoring unit and away from the lead body, each anchoring member having a proximal end and a distal end, the proximal end of each anchoring member coupled to the body and the distal end of each anchoring member configured and arranged for extending into tissue of a patient to anchor the anchoring unit to the tissue of the patient upon implantation of the implantable lead into the patient; and

    a conical sheath completely covering each of the plurality of anchoring member;

    wherein each of the plurality of anchoring members and the sheath is configured and arranged to fold flat when the lead is inserted into a cannula.

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