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Transvenously implantable lead

  • US 4,106,512 A
  • Filed: 12/16/1976
  • Issued: 08/15/1978
  • Est. Priority Date: 12/16/1976
  • Status: Expired due to Term
First Claim
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1. A body-implantable lead of materials substantially inert to body fluids and tissue comprising:

  • a length of electrical conductor having proximal and distal ends;

    an electrode connected to the distal end of said conductor, said electrode having tissue engaging means for securely engaging said electrode in contact with body tissue;

    sheath means having proximal and distal ends for loosely receiving and insulating said conductor from body tissue, said conductor being adapted to be axially advanced from its proximal end in and relative to said sheath means; and

    electrode head means attached to the distal end of said sheath means for receiving and isolating said electrode from body fluids and tissue, said electrode head means further comprising means for loosely engaging at least a portion of said electrode and for allowing the axial advancement of said electrode a predetermined distance from said sheath means upon advancement of said conductor in and relative to said sheath means.

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