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His bundle mapping, pacing, and injection lead

  • US 7,245,973 B2
  • Filed: 12/23/2003
  • Issued: 07/17/2007
  • Est. Priority Date: 12/23/2003
  • Status: Active Grant
First Claim
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1. An implantable endocardial lead adapted for use with an implantable cardiac rhythm management device including a drug reservoir, the lead comprising:

  • an implantable elongate lead body having a proximal end and a distal end, the proximal end configured to be connected to the implantable cardiac rhythm management device;

    an implantable electrode at or near the distal end for sensing cardiac electrical activities and delivering pacing pulses;

    a lumen within and extending through the lead body, the lumen having a proximal opening at about the proximal end and a distal opening at about the distal end, the lumen adapted to accommodate at least a portion of a flexible elongate object and to allow an end portion of the flexible elongate object to enter the proximal opening and extend from the distal opening;

    an implantable drug delivery device including a drug collar positioned away from the lumen at or near the distal end, the implantable drug delivery device adapted to deliver a pharmaceutical substance;

    a passageway extending through the implantable elongate lead body and configured to provide fluid communication between the drug collar and the drug reservoir; and

    a fixation helix at the distal end.

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