Trans-septal/trans-myocardial ventricular pacing lead

• US 7,321,798 B2
• Filed: 03/31/2005
• Issued: 01/22/2008
• Est. Priority Date: 03/31/2005
• Status: Expired due to Fees

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Struble, Chester L., Muhlenberg, Lambert
• Primary Examiner(s): Mullen; Kristen D.
• Assistant Examiner(s): Wu; Eugene T
• Application Number:
  US11/096,510
• Publication Number:
  US 20060224224A1
• Time in Patent Office: 1,027 Days
• Field of Search: 607/116, 607/119, 607/122, 607/123, 607/126, 607128-133, 607/137, 606/151, 606/157, 600/374, 600/375
• US Class Current: 607/126
• CPC Class Codes: A61N 1/057 Anchoring means; Means for fixing the head inside the heart
• CPC Class Codes: A61N 1/0573 chacterised by means penetrating the heart tissue, e.g. helix needle or hook
• CPC Class Codes: A61N 1/0587 Epicardial electrode systems; Endocardial electrodes piercing the pericardium

Abstract

An medical electrical lead in embodiments of the teachings may include one or more of the following features: (a) a lead body having a proximal end and a distal end, (b) a conductor traversing from the proximal end to the distal end, (c) an electrode disposed at the distal end of the lead body and electrically coupled to the conductor adapted to electrically stimulate a heart, (d) occlusion fabric disposed at the distal end of the lead body and supported by the electrode in a shape adapted to cover holes in the heart, and (f) a second electrode adapted to provide bipolar electrical stimulation of the heart.

Claims

1. A medical electrical lead, comprising:

a lead body having a proximal end and a distal end;

a conductor traversing from the proximal end to the distal end;

an electrode disposed at the distal end of the lead body and electrically coupled to the conductor adapted to electrically stimulate a heart, the electrode extending radially outward from the lead body and being flexible;

occlusion fabric supported by the electrode, the occlusion fabric being flexible, the flexibility permitting the occlusion fabric and the electrode to conform to a surface of the heart to cap punctures in the heart, wherein the electrode provides a cambered fabric support structure for the occlusion fabric, and the occlusion fabric is operably coupled to the cambered fabric support structure and comprises a collapsible canopy; and

a tine that is covered by the cambered fabric support structure during implantation of the medical lead.

2. The lead of claim 1, wherein the tine is exposed after insertion of the distal end into the left ventricle, the tine oriented to allow withdrawal of the distal end from the left ventricle and prevent further movement of the distal end into the left ventricle.

3. The lead of claim 1, wherein the occlusion fabric is operably coupled to the cambered fabric support structure and is in the shape of leaflets.

4. The lead of claim 1, wherein the distal end can be inserted into the left ventricle with a catheter or a trans-septal bore needle.

5. A medical electrical lead, comprising:

a lead body having a proximal end and a distal end;

a conductor traversing from the proximal end to the distal end;

an electrode disposed at the distal end of the lead body and electrically coupled to the conductor adapted to electrically stimulate a heart; and

occlusion fabric disposed at the distal end of the lead body and supported by the electrode in a shape adapted to cover puncture in the heart, wherein the electrode provides a cambered fabric support structure for the occlusion fabric and has a center portion with legs extending outward in a cambered fashion.

6. The lead of claim 5, wherein the occlusion fabric is adapted to cover a portion of the transventricular septum or the myocardial wall.

7. The lead of claim 6, wherein the occlusion fabric is adapted to cover a portion of the ventricular septum or the ventricular myocardial wall.

8. The lead of claim 6, wherein the electrode is adapted to be in electrical contact with the left ventricular side of the transventricular system.

9. The lead of claim 5, further comprising a second electrode adapted to provide bipolar electrical stimulation of the heart.

10. The lead of claim 5, wherein the occlusion fabric is an electrically insulative material.

11. The lead of claim 5, wherein the occlusion fabric operably couples the cambered fabric support structure and comprises a collapsible canopy.

12. The lead of claim 5, wherein the occlusion fabric is operably coupled to the cambered fabric support structure and is in the shape of leaflets.

13. A medical electrical lead, comprising:

a lead body having a proximal end and a distal end;

a conductor traversing from the proximal end to the distal end;

an electrode disposed at the distal end of the lead body and electrically coupled to the conductor adapted to electrically stimulate a heart, the electrode extending radially outward from the lead body and being flexible;

occlusion fabric supported by the electrode, the occlusion fabric being flexible, the flexibility permitting the occlusion fabric and the electrode to conform to a surface of the heart to cap punctures in the heart, wherein the distal end has a saw-tooth shaped surface.

14. The lead of claim 13, further comprising a fixation ring that can be pushed over the saw tooth surface wherein the fixation ring cannot be retracted and the distal end of the lead cannot be pushed further into the left ventricle.

15. The lead of claim 14, wherein the fixation ring has a diameter larger than the diameter of the aperture in the heart.