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Medical electrical lead employing improved penetrating electrode

  • US 5,002,067 A
  • Filed: 08/23/1989
  • Issued: 03/26/1991
  • Est. Priority Date: 08/23/1989
  • Status: Expired due to Term
First Claim
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1. A medical electrical lead comprising:

  • an elongated insulative lead body having a proximal end and a distal end;

    an elongated conductor having a proximal end and a distal end and mounted within said insulative lead body; and

    an electrode assembly having a proximal end and a distal end and having a drug release means located within said electrode assembly for release of a therapeutic drug, said electrode assembly further comprising fixation means extending from said electrode assembly for holding said electrode assembly adjacent body tissue, an outer surface of said fixation means provided with an elongated groove, a proximal end of said groove exposed to said drug release means a distal end of said groove extending from the distal end of said electrode assembly whereby when said fixation means is inserted into said body tissue, said elongated groove in conjunction with said body tissue define a passage along which said drug released by said drug release means may pass, and thereby pass into said body tissue, said electrode assembly further comprising a conductive electrode surface electrically coupled to the distal end of said elongated conductor.

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