One piece defibrillation lead circuit

• US 5,928,277 A
• Filed: 02/19/1998
• Issued: 07/27/1999
• Est. Priority Date: 02/19/1998
• Status: Expired due to Term

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Laske, Timothy G., Meregotte, Pedro A., Mayer, David W., Boser, Gregory A., Shoberg, Bret R.
• Primary Examiner(s): Kamm, William E.
• Assistant Examiner(s): EVANISKO, GEORGE ROBERT
• Application Number:
  US09/026,064
• Time in Patent Office: 523 Days
• Field of Search: 607/119, 607/122, 607/116, 600/373, 600/374
• US Class Current: 607/122
• CPC Class Codes: A61N 1/0563 specially adapted for defibrillation or cardioversion

Abstract

An implantable electrical lead having a lead body with a longitudinal lumen therein and a stranded electrical conductor located in the lumen and which exits the lumen at a distal portion of the lead body, the distal end of the conductor being curved to form a loop and reentering the lumen, terminating within the lumen alongside a more proximal portion of the conductor. The portion of the conductor exterior to the lumen is wound around the lead body to form a coiled electrode. In some embodiments the distal end of the conductor is coupled to a more proximal portion of the conductor to form a loop and the loop is wound around the lead body to form a bifilar coil. In other embodiments the conductor is wound around the lead body to form a mono-filar coil. The distal end of the conductor is mechanically and electrically coupled to a more proximal portion of the conductor, within the lumen.

Claims

1. An implantable electrical lead, comprising:

an elongated insulative lead body having a longitudinal lumen therein extending from a proximal end of the lead body to a distal portion of the lead body;

an electrical connector mounted to the proximal end of the lead body;

an elongated stranded electrical conductor located in the lumen, the conductor having a proximal end coupled to the electrical connector and a distal end which exits the lumen at the distal portion of the lead body and is wound around the lead body in a coil and thereafter reenters the lumen and is mechanically and electrically coupled to a more proximal portion of the conductor within the lumen.

4. A lead according to claim 1 or claim 2 or claim 3 wherein the stranded conductor is a cabled conductor.

2. An implantable electrical lead, comprising:

an elongated insulative lead body having a longitudinal lumen therein extending from a proximal end of the lead body to a distal portion of the lead body;

an electrical connector mounted to the proximal end of the lead body;

an elongated stranded electrical conductor located in the lumen, the conductor having a proximal end coupled to the electrical connector and a distal end which exits the lumen at the distal portion of the lead body and reenters the lumen and is coupled to a more proximal portion of the conductor in the lumen, forming a loop, and wherein the loop is wound around the lead body in a bifilar coil.

3. An implantable electrical lead, comprising:

an elongated insulative lead body having a longitudinal lumen therein extending from a proximal end of the lead body to a distal portion of the lead body;

an electrical connector mounted to the proximal end of the lead body;

an elongated stranded electrical conductor located in the lumen, the conductor having a proximal end coupled to the electrical connector and a distal end which exits the lumen at the distal portion of the lead body is wound around the lead body in a coil and thereafter reenters the lumen and extends within the lumen to a point where the conductor is coupled to a more proximal portion of the conductor within the lumen.