# US 2018/0021131 A1 · Heart Valve Assembly

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- Number: US 2018/0021131 A1
- Document ID: US20180021131A1
- Status: Published application
- Kind: A1
- Application number: 15/722,212
- Filed: 2017-10-02
- Published: 2018-01-25
- Earliest claimed: 2015-04-27
- Assignees: Venus Medtech (Hangzhou), Inc.
- Applicants: Venus Medtech (Hangzhou) Inc.
- Inventors: Min Frank Zeng; Pham Lo
- Web page: https://patentgrep.com/patent/US20180021131A1

## CPC

- A61F 2/2418: {Scaffolds therefor, e.g. support stents}
- A61F 2/2409: {Support rings therefor, e.g. for connecting valves to tissue (annuloplasty rings A61F2/2442)}
- A61F 2/2436: {Deployment by retracting a sheath}
- A61F 2220/0008: Fixation appliances for connecting prostheses to the body
- 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 2230/0013: Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
- A61F 2230/005: Rosette-shaped, e.g. star-shaped
- A61F 2230/0052: T-shaped
- A61F 2230/0054: V-shaped
- A61F 2230/0065: toroidal, e.g. ring-shaped, doughnut-shaped
- A61F 2230/0078: hyperboloidal
- A61F 2250/0039: differing in diameter
- A61F 2250/0063: Nested prosthetic parts
- A61F 2250/0069: Sealing means
- 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 heart valve assembly has a heart valve assembly that has a wire frame comprising an anchor section, a generally cylindrical valve support section, and a neck section that transitions between the anchor section and the valve support section. The wire frame includes a plurality of supports extending radially outwardly in an annular manner about an upper end of the valve support section, and the anchor section has an annular flange that extends radially therefrom, so that an annular space is defined between the annular flange and the annular supports for receiving or capturing the native annulus when the heart valve is deployed. The heart valve assembly also includes a leaflet assembly having a plurality of leaflets that are stitched to the valve support section and which are positioned on an inflow side of the neck section.

## Claims

### Claim 1

A heart valve assembly, comprising:
a wire frame comprising an anchor section, a generally cylindrical valve support section, and a neck section that transitions between the anchor section and the valve support section, the wire frame further including a plurality of supports extending radially outwardly in an annular manner about an upper end of the valve support section, and the anchor section having an annular flange that extends radially therefrom, wherein an annular space is defined between the annular flange and the annular supports; and
a leaflet assembly having a plurality of leaflets that are stitched to the valve support section and which are positioned on an inflow side of the neck section.

### Claim 2 (depends on 1)

The assembly of claim 1, wherein the valve support section has an inflow end that is configured with an annular zig-zag arrangement that defines peaks and valleys.

### Claim 3 (depends on 1)

The assembly of claim 1, wherein the neck section is configured as an annular U-shaped section.

### Claim 4 (depends on 1)

The assembly of claim 1, wherein the annular flange has a bowl-shaped configuration.

### Claim 5 (depends on 1)

The assembly of claim 1, wherein all portions of the anchor section have a wider diameter than any portion of the plurality of supports, the neck section and the valve support section.

### Claim 6 (depends on 1)

The assembly of claim 1, wherein the anchor section, neck section and the valve support section are all provided in a single piece.

### Claim 7 (depends on 1)

The assembly of claim 1, wherein the plurality of leaflets comprises three or four leaflets.

### Claim 8 (depends on 1)

The assembly of claim 1, further including a plurality of skirts connected to the anchor section and the neck section.

### Claim at position 9

9-16. (canceled)

### Claim 17

A method of securing a heart valve assembly at the native annulus of a human heart, comprising the steps of:
providing a heart valve assembly comprising:
a wire frame comprising an anchor section, a generally cylindrical valve support section, and a neck section that transitions between the anchor section and the valve support section, the wire frame further including a plurality of supports extending radially outwardly in an annular manner about an upper end of the valve support section, and the anchor section having an annular flange that extends radially therefrom, wherein an annular space is defined between the annular flange and the annular supports; and
a leaflet assembly having a plurality of leaflets that are stitched to the valve support section and which are positioned on an inflow side of the neck section;
delivering the heart valve assembly to the location of a native annulus; and
deploying the heart valve assembly at the location of the native annulus with the native annulus retained inside the annular space.

### Claim 18

(canceled)