Implantable medical lead having passive lock mechanical body terminations

• US 8,321,033 B2
• Filed: 07/13/2009
• Issued: 11/27/2012
• Est. Priority Date: 07/13/2009
• Status: Active Grant

• Current Assignee: Pacesetter Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Pacesetter Incorporated (Abbott Laboratories Incorporated)
• Inventors: Conger, Steven R.
• Primary Examiner(s): Layno, Carl H.
• Assistant Examiner(s): MORALES, JON ERIC C
• Application Number:
  US12/501,950
• Publication Number:
  US 20110009934A1
• Time in Patent Office: 1,233 Days
• Field of Search: 607116-122, 600373-381
• US Class Current: 607/116
• 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 1/0558 Anchoring or fixation means therefor
• CPC Class Codes: A61N 1/057 Anchoring means; Means for fixing the head inside the heart
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing
• CPC Class Codes: Y10T 29/49208 by assembling plural parts

Abstract

Disclosed herein is an implantable medical lead configured to receive a stylet. The lead may include a tubular body and a structure. The tubular body may include a distal end and a proximal end. The body may be configured to receive the stylet. The structure longitudinally may extend through the body between the distal end and the proximal end. The structure may be anchored within the body such that a tensile force arising within the body by the stylet being extended through the body causes the tensile force to be substantially carried by the structure.

Claims

1. An implantable medical lead comprising:

a longitudinally extending body;

a stylet stop in the body;

an electrode mounted on the lead body; and

an electrical conductor extending through a wall of the body, the electrical conductor directly and mechanically connected to the stylet stop and in electrical communication with the electrode;

wherein the stylet stop includes an outer shell and the conductor is directly and mechanically connected to the outer shell via a heat shrink layer; and

wherein an insulation layer of the body extends between an outer surface of the shell and an inner surface of the heat shrink layer.

2. The lead of claim 1, wherein the conductor includes an electrically conductive core and an electrical insulation jacket.

3. The lead of claim 1, wherein the electrode is a most distal electrode and the stylet stop is distal of the electrode.

4. The lead of claim 1, wherein the stylet stop further includes an insert portion received in the shell and configured to be engaged by a distal end of a stylet.

5. The lead of claim 1, wherein an outer surface of the shell is threaded.

6. The lead of claim 1, further comprising a grooved member including a groove defined in an outer surface of the member, wherein the conductor is received in the groove and the member is near a proximal end of the body.

7. The lead of claim 6, further comprising a lead connector end on a proximal end of the lead, wherein the member extends from a distal end of the lead connector end.

8. The lead of claim 6, wherein the groove is helically routed along the outer surface.

9. The lead of claim 6, wherein the grooved member is at least one of cylindrically shaped and distally tapering.

10. The lead of claim 1, wherein the conductor is at least one of a solid wire conductor and a cable conductor.

11. The lead of claim 1, wherein the conductor is at least one of helically routed and straight routed.