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Method and apparatus including a sliding insulation lead for cardiac assistance

  • US 4,735,205 A
  • Filed: 02/24/1986
  • Issued: 04/05/1988
  • Est. Priority Date: 02/24/1986
  • Status: Expired due to Fees
First Claim
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1. A lead for establishing electrical contact between body tissue and a medical device comprising:

  • a first length of conductor having a proximal end and a distal end;

    insulating means for electrically insulating said first length of conductor;

    connector means fixedly attached to said proximal end of said first length of conductor for electrically coupling said lead to a medical device;

    an electrode comprising a second length of conductor having a proximal and distal end;

    means for fixedly attaching the proximal end of said second length of conductor to the distal end of said first length of conductor;

    means fixedly attached to the distal end of said second length of conductor for inserting at least a portion of said second length of conductor into muscle tissue; and

    insulating sleeve means having a proximal end, a distal end and a predetermined length, said sleeve means surrounding said lead and slidable between at least said proximal and distal ends of said second length of electrical conductor whereby said insulating sleeve means may be advanced distally to overlie and electrically insulate any remaining portion of said second length of electrical conductor not positioned within muscle tissue.

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