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RF rejecting lead

  • US 7,610,101 B2
  • Filed: 11/30/2006
  • Issued: 10/27/2009
  • Est. Priority Date: 11/30/2006
  • Status: Expired due to Fees
First Claim
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1. A lead assembly for an implantable medical device, the lead assembly comprising:

  • a lead body having a first portion and a second portion, the first portion adapted for coupling to a pulse generator and the second portion adapted for implantation in or near a heart;

    first and second co-radial conductive coils positioned within the lead body and electrically isolated from each other, wherein the first and second conductive coils include a first and second number of coil turns and the first number is substantially equivalent to the second number;

    a ring electrode located at the second portion; and

    a tip electrode located distal to the ring electrode and coupled to the second conductive coil;

    wherein the first conductive coil extends past the ring electrode to between the ring electrode and the tip electrode and transitions to a non-coiled region, which extends back to and couples to the ring electrode.

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