Cardiac electrode anchoring system

• US 8,868,214 B2
• Filed: 07/14/2006
• Issued: 10/21/2014
• Est. Priority Date: 04/10/2003
• Status: Expired due to Fees

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Osypka, Peter
• Primary Examiner(s): Bertram, Eric D.
• Application Number:
  US11/457,676
• Publication Number:
  US 20060247752A1
• Time in Patent Office: 3,021 Days
• Field of Search: 607/126
• US Class Current: 607/126
• CPC Class Codes: A61N 1/059 Anchoring means
• CPC Class Codes: A61N 2001/0578 having means for removal or extraction

Abstract

A cardiac electrode arrangement has one or several heart electrodes arranged on the exterior surface of a heart or attached to the heart from the outside and/or arranged with a pole in the cardiac tissue. The electrodes, which can be fixed in the operating position by an anchor, run to an implanted heart pacemaker. For positioning and affixing the anchor, a tool is used that is designed as a rod or stylet and acts on an attachment site of the anchor, whereby the anchor can be pushed into or through the myocardium. The anchor is, at the same time, attached to a tension element or thread, over which the electrode, which has an inner guide channel that accommodates the tension element or thread, can be moved in a fitted and controlled manner. In the operating position, the electrode can be connected to the tension element or thread located in the guide channel.

Claims

1. A method for inserting an electrode within a myocardium of a heart, the method comprising:

inserting an anchor coupled to a tension element through the myocardium to an operating position adjacent an outer surface of the heart;

threading an electrode having an inner guide channel for accommodating the tension element and a pole for stimulating the heart over an end of the tension element;

advancing the electrode over the tension element towards the inserted anchor until the pole contacts the heart; and

affixing the tension element to the electrode at a connection point to prevent movement of the electrode in a direction away from the anchor.

2. The method of claim 1 comprising pre-forming a canal through the myocardium to the operating position adjacent the outer surface of the myocardium.

3. The method of claim 1 wherein inserting the anchor through the myocardium further comprises detachably coupling a tool to a deformation on the anchor.

4. The method of claim 1 further comprising manipulating the anchor to an orientation generally parallel to the outer surface of the myocardium in the operating position.

6. The method of claim 1 wherein affixing the tension element to the first electrode further includes knotting the tension element to a loop structure on the electrode.

7. The method of claim 1 wherein affixing the tension element to the electrode further comprises adhering the tension element to the electrode with a medical adhesive.

8. The method of claim 1 wherein affixing the tension element to the electrode further comprises tautly securing the tension element between the anchor and the connection point.

9. The method of claim 1 further comprising positioning a cathode of the electrode within the myocardium and an anode of the electrode at a distance from the cathode.

10. The method of claim 9 further comprising positioning the anode outside of the myocardium.

11. The method of claim 1 further comprising repeating the method to insert a second electrode within the myocardium, the second electrode branching out from a common supply lead with the first electrode.

12. The method of claim 11 further comprising fixing the tension elements extending through each of the first and second electrodes to each other.

13. The method of claim 1 wherein inserting the anchor to the operating position further comprises situating the anchor on the outer surface of the myocardium.

5. The method of claim wherein 1 affixing the tension element to the first electrode further comprises positioning a front end of the electrode against a stop on the tension element.

14. A method for inserting an electrode within a myocardium of a heart, the method comprising:

inserting an anchor coupled to a tension element through the myocardium to an operating position adjacent an outer surface of the heart;

manipulating the anchor into an abutment configuration relative to the outer surface of the heart;

after inserting the anchor, advancing an electrode having a pole for stimulating the myocardium over the tension element towards the anchor; and

coupling the tension element to the electrode.

15. The method of claim 14 wherein manipulating the anchor into the abutment configuration comprises maneuvering the anchor from a collapsed configuration to an expanded configuration.

16. The method of claim 14 wherein manipulating the anchor into the abutment configuration comprises swinging the anchor into an angled orientation relative to the tension element.

17. The method of claim 14 wherein manipulating the anchor into the abutment configuration comprises orienting the anchor diagonally relative to an insertion direction.

18. The method of claim 14 wherein manipulating the anchor into the abutment configuration comprises orienting the anchor generally parallel to the outer surface of the myocardium in the operating position.

19. The method of claim 14 wherein manipulating the anchor into the abutment configuration comprises pulling on the tension element.

20. A method for inserting an electrode within a myocardium of a heart, the method comprising:

inserting an anchor coupled to a tension element through the myocardium to an operating position adjacent an outer surface of the heart;

manipulating the anchor to an abutment configuration relative to the outer surface of the heart;

after inserting the anchor, advancing an electrode having a pole for stimulating the myocardium over the tension element towards the anchor; and

affixing the tension element to the electrode at a connection point to prevent movement of the electrode in a direction away from the anchor.