Method for anchoring a mitral valve

• US 20080004697A1
• Filed: 06/28/2006
• Published: 01/03/2008
• Est. Priority Date: 06/28/2006
• Status: Active Grant

• Current Assignee: Kardium Inc.
• Original Assignee: Kardium Inc.
• Inventors: Gelbarx, Daniel, Lichtenstein, Samuel Victor
• Granted Patent: US 8,449,605 B2
• Time in Patent Office: Days
• US Class Current: 623/2.11
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2433 using balloon catheter
• CPC Class Codes: A61F 2/2442 Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
• CPC Class Codes: A61F 2/2451 Inserts in the coronary sinus for correcting the valve shape
• CPC Class Codes: A61F 2/2466 Delivery devices therefor
• CPC Class Codes: A61F 2210/009 magnetic
• CPC Class Codes: A61F 2250/006 modular

Abstract

An artificial mitral valve is anchored in the left atrium by placing the valve between the annulus of the natural mitral valve and an artificial annulus. The artificial annulus is formed by inserting a tool into the coronary sinus, and adjusting the tool to force the wall of the left atrium to form an annulus above the artificial valve, this locking it in place and forming a hemostatic seal.

Claims

1. A method for anchoring an artificial mitral valve in the left atrium of the heart, said method comprising the steps of:

deploying an artificial mitral valve in the left atrium;

positioning said valve above the annulus of the natural mitral valve; and

anchoring said artificial valve by shaping atrial wall to form an artificial annulus above said artificial valve.

3. A method as in claims 1 or 2 wherein said method is carried out percutaneously.

4. A method as in claims 1 or 2 wherein said artificial annulus is formed at least in part by a tool inserted in the coronary sinus.

5. A method as in claims 1 or 2 wherein said artificial valve is deployed by expanding a balloon.

6. A method as in claims 1 or 2 wherein said artificial annulus is formed at least in part by a tool permanently installed in the coronary sinus

2. A method for anchoring an artificial mitral valve in the left atrium of the heart, said method comprising the steps of:

deploying an artificial mitral valve in the left atrium;

positioning said valve above the annulus of the natural mitral valve; and

anchoring said artificial valve by shaping atrial wall to form an artificial annulus around said artificial valve.

7. A device for anchoring an artificial mitral valve inside the left atrium by forming an artificial annulus, said device comprising an elongate member having a flexible state and a more rigid state, said device being inserted into the coronary sinus in the flexible state.

8. A device as in claim 7 wherein said device is adjustable and removable during the installation of the device in the heart as well as at a later date.

9. A device as in claim 7 wherein said device is made of rigid links connected by a cable, and the tension of said cable is adjustable.

10. A device as in claim 7 wherein the device is delivered percutaneously by a detachable adjustment tool.

11. A device as in claim 7 wherein said device is delivered via a catheter using an adjustment tool, and said device is equipped with at least one elastic barb, said barb being exposed by detaching said device from said adjustment tool.

12. A device as in claim 7 said device being delivered via a catheter by the use of an adjustment tool, said device being attached to said tool at least partially by magnetic force.

13. A device as in claim 7, said device also including magnetic means to aid in positioning said artificial valve.