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Lead body and method of lead body construction

  • US 7,555,349 B2
  • Filed: 01/11/2006
  • Issued: 06/30/2009
  • Est. Priority Date: 09/26/2000
  • Status: Expired due to Fees
First Claim
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1. A method for manufacturing a neurostimulation lead, comprising:

  • providing a mandrel having inner insulating material disposed intermediate a first end and a second end of the mandrel, wherein the mandrel extends beyond the inner insulating material at the first end and the second end of the mandrel;

    securing respective first ends of a plurality of conductors to the first end of the mandrel;

    positioning the plurality of conductors spirally around the inner insulating material and securing respective second ends of the plurality of conductors to the second end of the mandrel;

    providing at least one insulating spacer;

    spirally winding the at least one insulating spacer between an adjacent pair of conductors of the plurality of conductors;

    disposing an outer insulating material around the wound plurality of conductors coextensive with the inner insulating material;

    fusing the inner insulating material, the at least one insulating space, and the outer insulating material to each other to form a lead assembly;

    forming a lead body from the lead assembly; and

    forming a stimulation lead, from the lead body, adapted for stimulation of neural tissue, the stimulation lead comprising at least one electrode.

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