Method and device for percutaneous surgical ventricular repair

• US 7,485,088 B2
• Filed: 09/05/2002
• Issued: 02/03/2009
• Est. Priority Date: 09/05/2001
• Status: Expired due to Fees

• Current Assignee: Heart Failure Technologies LLC
• Original Assignee: Chase Medical LP
• Inventors: Murphy, Gregory, Davis, Albert, Suresh, Mitta
• Primary Examiner(s): TYSON, MELANIE RUANO
• Application Number:
  US10/235,295
• Publication Number:
  US 20040249408A1
• Time in Patent Office: 2,343 Days
• Field of Search: 606191-198, 128/898, 600/16, 600/587, 600/37, 623/3.1, 623/23.72, 601/153
• US Class Current: 600/37
• CPC Class Codes: A61F 2/2487 Devices within the heart chamber, e.g. splints

Abstract

In one embodiment, there is disclosed a method for repairing a heart of a human, comprising introducing a collapsed shaping device through the skin into the vascular system of the human, delivering the shaping device into a left ventricle through the arteries, once inside the left ventricle, expanding the shaping device to an expanded shape, imbricating a wall of the ventricle over the shaping device, collapsing the shaping device, and removing the shaping device from the left ventricle such that the ventricle is restored to an appropriate size.

Claims

1. A method for repairing a heart of a human, the method comprising:

introducing a shaping device percutaneously into a vasculature of the human, wherein the shaping device is in an at least partially collapsed state and is coupled to a patch,

delivering the shaping device and patch into a left ventricle through the vasculature,

positioning the shaping device such that the patch substantially aligns with at least a portion of non-viable tissue in the heart,

expanding the shaping device to an expanded shape,

attaching the patch to at least a part of the heart such that the ventricle is restored to an appropriate size,

at least partially collapsing the shaping device, and

removing the shaping device from the left ventricle.

2. The method of claim 1 further comprising substantially reforming the wall of the ventricle over the shaper.

3. The method of claim 2 further comprising excluding at least the portion of the non-viable tissue from the ventricle.

4. The method of claim 2 further comprising:

opening the chest cavity, and

securing the wall of the ventricle through the opening.

5. The method of claim 4 further comprising stapling the ventricle with a stapling instrument to secure the wall of the ventricle.

6. The method of claim 1 wherein the shaping device comprises a wire mesh structure, and further comprising expanding at least a portion of the wire mesh structure.

7. The method of claim 1 wherein the shaping device comprises a balloon, and further comprising expanding at least a portion of the balloon.

8. The method of claim 1 further comprising:

assessing a size and shape for the patch, and

cutting the patch to be of the assessed size and shape.

9. The method of claim 1, wherein the portion of non-viable tissue in the heart comprises akinetic tissue.

10. A method for reinforcing a human heart, comprising:

introducing a securing mechanism percutaneously into a vasculature of a human body, wherein the securing mechanism is in an at least partially collapsed state;

positioning the securing mechanism in the left ventricle such that a reinforcing element substantially aligns with at least a portion of non-viable tissue of the heart;

coupling the reinforcing element to a part of the heart, wherein the reinforcing element is configured to inhibit expansion of the left ventricle beyond a predetermined volume;

excluding at least a portion of the non-viable tissue from the ventricle; and

removing the securing mechanism from the left ventricle.

11. The method of claim 10, further comprising expanding the securing mechanism.

12. The method of claim 10, further comprising collapsing the securing mechanism.

13. The method of claim 10, further comprising:

assessing a size and shape for the reinforcing element; and

modifying the reinforcing element to be the assessed size and shape.

14. The method of claim 10, wherein the securing mechanism comprises a shaping device.

15. The method of claim 14, wherein the securing mechanism comprises a wire mesh structure, and further comprising expanding at least a portion of the wire mesh structure.

16. The method of claim 14, wherein the securing mechanism comprises a balloon, and further comprising expanding at least a portion of the balloon.

17. A method of reinforcing a portion of an endocardial surface of a human heart, comprising:

inserting a catheter with a distal and proximal end percutaneosly into a vasculature of a human body;

guiding the catheter into a left ventricle;

deploying a reinforcing element in order to reinforce the portion of an endocardial wall, wherein the reinforcing element is configured to substantially constrain the left ventricle to a predetermined maximum volume;

matching a first surface of the reinforcing element to a non-viable portion of the endocardium;

reforming the left ventricle to an appropriate shape and volume using a second surface of the reinforcing element; and

removing the catheter from the left ventricle.

18. The method of claim 17, wherein the reinforcing element comprises a patch.

19. The method of claim 17, further comprising positioning the reinforcing element in the left ventricle using a securing mechanism.

20. The method of claim 17, further comprising:

assessing a size and shape for the reinforcing element, and

modifying the reinforcing element to be the assessed size and shape.

21. The method of claim 19, further comprising:

positioning the securing mechanism such that at least a portion of the reinforcing element substantially aligns with a non-viable portion in the heart,

expanding the securing mechanism to an expanded shape, and

coupling the reinforcing element to a part of the heart.

22. The method of claim 17, wherein the reinforcing element comprises nitinol.

23. The method of claim 17, further comprising coupling the reinforcing element to the septal wall separating the left ventricle and a right ventricle.