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Insulative structure for MRI compatible leads

  • US 8,630,718 B2
  • Filed: 09/22/2011
  • Issued: 01/14/2014
  • Est. Priority Date: 11/18/2010
  • Status: Expired due to Fees
First Claim
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1. A medical device lead comprising:

  • a proximal end configured to couple the lead to a medical device;

    an insulative lead body extending distally from the proximal end;

    a first conductor coil coupled to the proximal end and extending through the lead body, the first conductor coil coupled to a first electrode at a distal end of the first conductor coil, the first conductor coil having a first inner lumen; and

    a first magnetically impregnated polymer layer adjacent the first conductor coil and extending within the first inner lumen of the first conductor coil, the first magnetically impregnated polymer layer configured to increase the self inductance of the first conductor coil to reduce RF energy absorption.

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