# US 9,433,503 B2 · Percutaneous transcatheter repair of heart valves

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- Number: US 9,433,503 B2
- Document ID: US9433503B2
- Status: Granted
- Kind: B2
- Application number: 13/935,193
- Filed: 2013-07-03
- Published: 2013-10-31
- Granted: 2016-09-06
- Earliest claimed: 2010-08-04
- Assignees: Valcare, Inc.
- Applicants: ValCare, Inc.
- Inventors: Ross Tsukashima; Samuel M. Shaolian; Maurice Buchbinder; Brian C. Gray; Victor S. Packham; Hung H. Cao
- Web page: https://patentgrep.com/patent/US9433503B2

## CPC

- A61F 2/2466: {Delivery devices therefor}
- A61F 2/2448: {D-shaped rings}
- A61F 2/2442: {Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve}
- A61F 2/2445: {Annuloplasty rings in direct contact with the valve annulus}
- A61F 2210/0014: using shape memory or superelastic materials, e.g. nitinol
- A61F 2220/0016: with sharp anchoring protrusions, e.g. barbs, pins, spikes
- A61F 2220/0033: made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
- A61F 2220/0075: sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
- A61F 2250/0004: adjustable
- A61F 2250/001: for adjusting a diameter
- A61F 2250/0067: Means for introducing or releasing pharmaceutical products into the body
- A61F 2250/0096: Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow member including a plurality of segments. Adjacent segments cooperate with one another to change the outer hollow member from an elongate insertion geometry to an annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the outer hollow member. The internal anchor member includes a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. The internal anchor member is configured to move the plurality of anchors with respect to a plurality of windows in the outer hollow member to selectively deploy the plurality of anchors through the respective windows.

## Claims

### Claim 1

A method for percutaneous transcatheter repair of a mitral valve in a heart, the method comprising: percutaneously introducing a distal end of a first catheter into a left atrium of the heart;
inserting a segmented annuloplasty ring, attached to a second catheter, through the first catheter into the left atrium, the ring including a superelastic shape memory material that transforms the ring from an elongate insertion geometry to an annular operable geometry as the ring exits the distal end of the first catheter;
automatically rotating the ring to change a plane of the ring from a first direction that is parallel to the second catheter to a second direction that is parallel to a plane of a mitral valve annulus;
pulling a first suture, connected to the ring through the second catheter, to couple the ends of the ring together;
pulling a second suture, connected to the ring through the second catheter, to deploy a plurality of tissue anchors from the ring; and
inserting an expansion device through the first catheter into the left atrium and activating the expansion device to press the ring against an annulus of the mitral valve so as to drive the anchors into surrounding tissue.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
detaching the ring from the second catheter and the first and second sutures; and
removing the first and second catheters from the heart.

### Claim 3 (depends on 1)

The method of claim 1, wherein percutaneously introducing the distal end of the first catheter into the left atrium of the heart comprises a trans-septal approach through the inferior vena cava, right atrium, and interatrial septum into the left atrium.

### Claim 4 (depends on 1)

The method of claim 1, wherein percutaneously introducing the distal end of the first catheter into the left atrium of the heart comprises a retrograde approach through the aorta, aortic valve, left ventricle, and mitral valve into the left atrium.

### Claim 5 (depends on 1)

The method of claim 1, wherein percutaneously introducing the distal end of the first catheter into the left atrium of the heart comprises a trans-apical approach through the apex of the heart, left ventricle, and mitral valve into the left atrium.