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Cardiac vein lead with flexible anode and method for forming same

  • US 7,031,777 B2
  • Filed: 09/27/2002
  • Issued: 04/18/2006
  • Est. Priority Date: 09/27/2002
  • Status: Active Grant
First Claim
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1. A cardiac pacing lead, comprising:

  • an elongated lead body extending from a proximal end to a distal end, the lead body having an outer insulative sheath;

    a first electrode positioned at the distal end of the lead body;

    a second electrode spaced proximally from the first electrode and positioned within the outer insulative sheath, wherein the second electrode includes a plurality of filars having corresponding distal ends, each of the distal ends being fixed to a corresponding adjacent filar of the plurality of filars,a conductive sleeve electrically coupled to the second electrode; and

    a conductor extending from the proximal end of the lead and electrically coupled to the conductive sleeve, wherein the sleeve has a first length, the first electrode has a second length, and the first length is not greater than the second length, and wherein the conductive sleeve includes spaced grooved portions.

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