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MRI-safe implantable lead

  • US 7,844,344 B2
  • Filed: 11/18/2004
  • Issued: 11/30/2010
  • Est. Priority Date: 03/30/2004
  • Status: Active Grant
First Claim
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1. A medical lead configured to be implanted into a patient'"'"'s body and having at least one distal stimulation electrode, the lead comprising:

  • at least one insulated conductive filer electrically coupled to the distal stimulation electrode;

    a jacket that is an outermost layer of the medical lead for housing said conductive filer and providing a path distributed along at least a portion of a length of the lead through said jacket for guiding induced radio frequency (RF) energy from said filer to the patient'"'"'s body, the jacket consisting of an elastomeric polymer doped with a dielectric material different than the elastomeric polymer; and

    a conductive material completely filling a space between said insulated filer and said jacket.

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