Surgical lead body

• US 20030229387A1
• Filed: 06/09/2003
• Published: 12/11/2003
• Est. Priority Date: 02/08/2000
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Cross, Thomas E. Jr., Redko, Vladimir, Alo, Kenneth M.
• Granted Patent: US 7,319,904 B2
• Time in Patent Office: Days
• US Class Current: 607/122
• CPC Class Codes: A61B 2562/227 Sensors with electrical connectors
• CPC Class Codes: A61B 5/24 Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
• CPC Class Codes: A61B 5/4041 Evaluating nerves condition
• CPC Class Codes: A61N 1/05 for implantation or insertion into the body, e.g. heart electrode A61N1/06 takes precedence
• CPC Class Codes: A61N 1/0551 Spinal or peripheral nerve electrodes
• CPC Class Codes: H01R 13/025 formed by the conductors of a cable end
• CPC Class Codes: H01R 2201/12 for medicine and surgery

Abstract

There is disclosed a surgical lead comprising two percutaneous lead bodies bonded together. The inventive lead body results in the equivalent of a surgical lead body with columns of electrodes either adjacent to or offset from each other. A bridge of urethane material is used to bond together the percutaneous lead bodies and still provide suitable flexibility of the lead. The surface of the electrodes may be coated, in part, with a suitable non-conductive coating to effectively direct the electrical stimulation signals toward the targeted stimulation area. Significantly, the resulting lead is sized to fit within a needle having a similar cross-section, thereby permitting the percutaneous implantation of the inventive lead

Claims

1. An implantable medical lead comprising:

a first lead body having at least one electrode;

a second lead body attached to the first lead body at more than one location, the second lead body having at least one electrode; and

a non-conductive coating applied to a portion of either of the first or second lead body for directing a stimulation signal away from that portion, whereby the medical lead may be percutaneously implanted.

2. The implantable medical lead of claim 1 wherein the at least one electrode on the first lead body is substantially adjacent to the at least one electrode on the second lead body.

3. The implantable medical lead of claim 1 wherein the at least one electrode of the first lead body is positioned offset to the at least one electrode of the second lead body.

4. The implantable medical lead of claim 3 wherein the attachment of the first and second lead bodies is effected by bonding at multiple locations.

5. The implantable medical lead of claim 1 wherein the non-conductive coating is polyurethane.

6. An implantable medical lead comprising:

a first lead body having at least one electrode;

a second lead body bonded at multiple locations to the first lead body, the second lead body having at least one electrode; and

a non-conductive coating applied to a portion of either of the first or second lead body.

7. The implantable medical lead of claim 6 wherein the at least one electrode on the first lead body is substantially adjacent to the at least one electrode on the second lead body.

8. The implantable medical lead of claim 6 wherein the at least one electrode of the first lead body is positioned offset to the at least one electrode of the second lead body.

9. The implantable medical lead of claim 6 wherein the non-conductive coating is polyurethane.

10. An implantable medical lead comprising:

a first lead body having at least one electrode;

a second lead body bonded at multiple locations to the first lead body, the second lead body having at least one electrode; and

a non-conductive coating applied to a portion of the at least one electrode of either of the first or second lead body.

11. The implantable medical lead of claim 10 wherein the at least one electrode on the first lead body is substantially adjacent to the at least one electrode on the second lead body.

12. The implantable medical lead of claim 10 wherein the at least one electrode of the first lead body is positioned offset to the at least one electrode of the second lead body.

13. The implantable medical lead of claim 10 wherein the non-conductive coating is polyurethane.