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Integral spiral band electrode for transvenous defibrillation leads

  • US 5,728,149 A
  • Filed: 12/20/1995
  • Issued: 03/17/1998
  • Est. Priority Date: 12/20/1995
  • Status: Expired due to Term
First Claim
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1. A defibrillation lead for location in a human heart of the type comprising:

  • an elongated lead body extending between a connector at a proximal end thereof and to a distal end thereof;

    an elongated defibrillation conductor within said lead body extending from said connector to a conductor distal end at a pre-determined location along the length of said lead body;

    a defibrillation electrode extending in spiral turns of at least one spiral band around the exterior of said lead body for a pre-determined defibrillation electrode length, said defibrillation electrode fabricated of a single tubular member of body compatible, electrically conductive material having first and second ends and first and second tubular end bands adjacent said first and second ends and a lumen with an inside diameter selected to fit over said lead body, said single tubular member further including at least one spiral slit formed therein extending from first and second slit end points, spaced from said first and second ends, respectively, thereby forming said at least one spiral band integrally attached to first and second end bands, respectively; and

    means for attaching at least one of said first and second end bands of said defibrillation electrode to said defibrillation lead conductor.

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