# US 9,517,131 B2 · Cardiac valve repair device

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- Number: US 9,517,131 B2
- Document ID: US9517131B2
- Status: Granted
- Kind: B2
- Application number: 14/724,424
- Filed: 2015-05-28
- Published: 2016-06-16
- Granted: 2016-12-13
- Earliest claimed: 2014-12-12
- Applicants: Than Nguyen
- Inventors: Than Nguyen
- Web page: https://patentgrep.com/patent/US9517131B2

## CPC

- A61F 2/246: {Devices for obstructing a leak through a native valve in a closed condition}
- A61F 2/2454: {Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses}
- A61F 2/2412: {with soft flexible valve members, e.g. tissue valves shaped like natural valves}
- A61F 2230/0008: elliptical or oval
- A61F 2230/0054: V-shaped
- A61F 2230/0056: W-shaped, e.g. M-shaped, sigma-shaped
- 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

A cardiac valve repair device has a membrane assembly and a frame. The frame has a central structure that defines a central separation, a pair of sleeves positioned below the central structure, and a pair of atrial alignment expansion beams. Each atrial alignment expansion beam has a curved section and inner section at each opposite end that defines a scissor-crossing where they overlap each other to form a separate lower expansion clip beam at each of the opposite ends thereof. The cardiac valve repair device also includes a pair of upper expansion clip beams. A V-shaped ventricular expansion curved beam extends below the two sleeves, with the membrane assembly secured to the V-shaped ventricular expansion curved beam. A pair of ventricular alignment stabilizing beams extends downwardly from the two sleeves.

## Claims

### Claim 1

A cardiac valve repair device, comprising a membrane assembly and a frame, the frame comprising:
a central structure that defines a central separation;
a pair of sleeves positioned below the central structure;
a pair of atrial alignment expansion beams, each atrial alignment expansion beam having a curved outer flange section that together defines a generally oval shape, each opposite end of the flange section having a curved section that transitions into an inner section that extends radially towards the middle of the combined flange sections, the combined curved section and inner section of the two atrial alignment expansion beams at each opposite end defining a scissor-crossing where they overlap each other to form a separate lower expansion clip beam at each of the opposite ends thereof;
a pair of upper expansion clip beams, each having an M-shaped wing section that includes at least one wing tip, each wing section having two legs that converge downwards towards one of the sleeves, with one leg transitioning to a part of a central structure
a V-shaped ventricular expansion curved beam extending below the two sleeves, with the membrane assembly secured to the V-shaped ventricular expansion curved beam; and
a pair of ventricular alignment stabilizing beams extending downwardly from the two sleeves.

### Claim 2 (depends on 1)

The device of claim 1, wherein each ventricular alignment stabilizing beam has opposing vertical sections that transition into widened sections before terminating at a lower V-shaped section.

### Claim 3 (depends on 1)

The device of claim 1, wherein the central structure comprises a pair of central structural beams having a separation between 5 mm and 15 mm.

### Claim 4 (depends on 1)

The device of claim 1, wherein a clipping space is defined between each pair of upper expansion clip beams and lower expansion clip beams on opposite ends of the central structure.

### Claim 5 (depends on 1)

The device of claim 1, wherein the frame is made from a single wire.

### Claim 6 (depends on 1)

The device of claim 1, wherein the V-shaped ventricular expansion curved beam is formed of a plurality of wires.