Cardiac valve repair device

• US 9,517,131 B2
• Filed: 05/28/2015
• Issued: 12/13/2016
• Est. Priority Date: 12/12/2014
• Status: Active Grant

• Current Assignee: Suzhou Innomed Medical Device Co., Ltd.
• Original Assignee: Than Nguyen
• Inventors: Nguyen, Than
• Primary Examiner(s): Stewart, Jason-Dennis
• Application Number:
  US14/724,424
• Publication Number:
  US 20160166382A1
• Time in Patent Office: 565 Days
• US Class Current: 1/1
• 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 2/2454 Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses
• CPC Class Codes: A61F 2/246 Devices for obstructing a leak through a native valve in a closed condition
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0056 W-shaped, e.g. M-shaped, sigma-shaped

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

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.

2. 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.

3. 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.

4. 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.

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

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