Minimally Invasive Aortic Valve Replacement

• US 20060271172A1
• Filed: 05/16/2006
• Published: 11/30/2006
• Est. Priority Date: 05/16/2005
• Status: Abandoned Application

• Current Assignee: Hassan Tehrani
• Original Assignee: Hassan Tehrani
• Inventors: Tehrani, Hassan
• Application Number:
  US11/383,578
• Publication Number:
  US 20060271172A1
• Time in Patent Office: Days
• US Class Current: 623/2.110
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2002/30589 Sealing means
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas
• CPC Class Codes: A61F 2250/007 O-rings

Abstract

A replacement cardiac valve for placement adjacent the native annulus comprises a valve body having a multi-leaflet valve, a supporting stent surrounding and operatively coupled to the valve body, a superior O-ring and an inferior O-ring spaced from one another to span the native annulus, the O-rings surrounding the valve body and operatively coupled the valve body or the supporting stent, the valve body, the supporting stent, and the O-rings adapted for transcatheter placement using a deployment catheter.

Claims

1. A replacement cardiac valve for minimally-invasive placement comprising:

a valve body having a valve leaflet apparatus and a supporting stent;

an O-ring assembly surrounding the valve body and including a superior O-ring and an inferior O-ring;

the valve body and the O-ring assembly adapted for transcatheter placement using a deployment catheter.

2. The cardiac valve of claim 1, wherein the superior and inferior O-rings are spaced to span the native valve annulus.

3. The cardiac valve of claim 1, wherein the superior and the inferior O-rings are constructed of felt.

4. The cardiac valve of claim 1, wherein the valve body is a bi-leaflet valve.

5. The cardiac valve of claim 1, wherein the valve body is a tri-leaflet valve.

6. The cardiac valve of claim 4, wherein the bi-leaflet valve is constructed of at least one of expanded polytetrafluoroethylene (ePTFE), bovine pericardium, or native porcine valve leaflets.

7. The cardiac valve of claim 5, wherein the tri-leaflet valve is constructed of at least one of expanded polytetrafluoroethylene (ePTFE), bovine pericardium, or native porcine valve leaflets.

8. The cardiac valve of claim 1, wherein the O-rings at constructed of expanded polytetrafluoroethylene, foam, or rubber.

9. A replacement cardiac valve for minimally-invasive placement adjacent the native annulus, the cardiac valve comprising:

a valve body having a multi-leaflet valve and a supporting stent;

a superior O-ring and an inferior O-ring, both O-rings operatively coupled to the valve body and spaced to span the native annulus;

the valve body and the superior and inferior O-rings adapted for transcatheter placement using a deployment catheter.

10. The cardiac valve of claim 9, wherein the superior and the inferior O-rings are constructed of felt.

11. The cardiac valve of claim 9, wherein the multi-leaflet valve is a bi-leaflet valve.

12. The device of claim 9, wherein the multi-leaflet valve is a tri-leaflet valve.

13. The device of claim 9, wherein the multi-leaflet valve is constructed of at least one of expanded polytetrafluoroethylene (ePTFE), bovine pericardium, or native porcine valve leaflets.

14. A replacement cardiac valve for placement adjacent the native annulus, the cardiac valve comprising:

a valve body having a multi-leaflet valve;

a supporting stent surrounding the valve body, the valve body and the supporting stent operatively coupled to one another;

a superior O-ring and an inferior O-ring, both O-rings surrounding the valve body and operatively coupled the valve body or the supporting stent, the O-rings spaced apart a distance sufficient to span the native annulus;

the valve body, the supporting stent, and the O-rings adapted for transcatheter placement using a deployment catheter.

15. The cardiac valve of claim 14, wherein the superior and the inferior O-rings are constructed of felt.

16. The cardiac valve of claim 14, wherein the multi-leaflet valve constructed of at least one of expanded polytetrafluoroethylene (ePTFE), bovine pericardium, or native porcine valve leaflets.

17. A method of minimally-invasive valve replacement at a location adjacent a native annulus, the method comprising the steps of:

performing a balloon valvuloplasty on a native valve;

providing a replacement valve having a pair of O-rings surrounding a valve body;

guiding the replacement valve to a position adjacent the valve annulus of the native valve;

expanding the valve body at a positioned adjacent the valve annulus of the native valve; and

forming a paravalvular seal.