SYSTEMS, DEVICES AND METHODS FOR SURGICAL AND PRECUTANEOUS REPLACEMENT OF A VALVE

• US 20140025163A1
• Filed: 01/25/2012
• Published: 01/23/2014
• Est. Priority Date: 01/25/2011
• Status: Abandoned Application

• Current Assignee: Emory University
• Original Assignee: Emory University
• Inventors: Padala, Saimuralidhar, Thourani, Vinod H.
• Application Number:
  US13/978,912
• Publication Number:
  US 20140025163A1
• Time in Patent Office: Days
• US Class Current: 623/2.18
• 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 2/2442 Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/2454 Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses
• CPC Class Codes: A61F 2/2457 Chordae tendineae prostheses
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2250/006 modular

Abstract

The systems, devices and methods relate surgical and percutaneous replacement of a valve. The devices may include a frame and artificial leaflets. The devices may include one frame or two frames. The devices may also include a stent device in which the implant valve device may be implanted. The devices may also include a valve retainer device.

Claims

1. A valve implant device for surgical replacement of a valve of a patient, the valve having a valve annulus, comprising:

a frame structured to have a shape of the valve to be replaced and being structured for placement within the valve annulus,

at least one valve leaflet, the leaflet including artificial chordae tendineae that is structured to control the motion of the valve beyond the valve annulus.

2. The device according to claim 1, wherein the device includes more than one leaflet.

3. The device according to claim 2, wherein the leaflets are the same size.

4. The device according to claim 2, wherein the leaflets are of different sizes.

5. The device according to claim 1, wherein:

the frame includes a support base and two or more struts that extend from the structure perpendicularly from a fulcrum,

the struts are structured to have adjustable flexibility, and

the struts are structured to be adjusted either before or after surgical implantation to alter the motion of the valve leaflets.

6. The device according to claim 5, wherein the valve leaflet includes a material mounted on the frame, and the material is an artificial polymeric material or treated tissue.

7. The device according to claim 1, wherein the frame includes a support structure, the device further comprising:

two or more struts that extend perpendicularly from the frame; and

a connector disposed on each strut;

wherein each strut includes at least one tension member that extends from the support frame to the connector.

8. The device according to claim 7, wherein the frame includes a tension device that is structured to adjust a length and a tension of the member.

9. The device according to claim 8, wherein the length and the tension is adjusted according to at least one of desired extension of leaflet motion and recoil force to retract the valve leaflet.

10. The device according claim 7, wherein:

the device includes a first frame and a second frame, the frame being structured for placement within the valve annulus being the first frame, the second frame including the at least one valve leaflet;

the second frame includes a support base and at least two struts that extend perpendicularly from the support base at a fulcrum, wherein the struts are structured to be flexible bend with the fulcrum.

11. The device according to claim 9, wherein the second frame includes at least two connectors, each connector structured to connect with the connector of the first frame.

12. A stent device structured for use with a valve implant device for replacement of a heart valve of a patient, the valve having native valve leaflets and orifice, the stent comprising:

two segments, the two segments structured to receive a valve implant device.

13. The stent according to claim 12, wherein the stent is structured to radially push the native valve leaflets outwards and rest on an annulus of the valve and during ventricular pressurization provide a radially inward force to hold the valve implant device in place.

14. The stent according to claim 12, wherein each segment has a same shape and size.

15. The stent according to claim 12, wherein each segment has a different shape and size.

16. The stent according to claim 12, further comprising:

at least two connectors, each connector connecting the two segments,

wherein the segments are structured to rotate about the connector.

17. The stent device according to claim 16, wherein each segment is structured for a plurality of configurations.

18. An implant system for surgical replacement of a valve of a patient, the valve having a valve annulus, a orifice and native leaflets, comprising:

an implant valve device structured to have a shape of the valve to be replaced and being structured for placement within the valve annulus, the device including at least one frame and at least one valve leaflet, the leaflet including artificial chordae tendineae that is structured to control the motion of the valve beyond the valve annulus; and

a stent device, the stent device being structured to have a shape of the valve so that when a radial force is applied on the native valve leaflets when the stent is implanted in the orifice, a passage is formed in the valve, the passage being structured to receive the implant valve device when implanted into the orifice.

19. The implant system according to claim 18, wherein the stent device includes two movable segments.

20. The implant system according to claim 19, further comprising:

a valve retainer device structured to secure the implant valve device, the valve retainer device being structured to fixedly connect to the stent device.