Truncated cone heart valve stent

• US 9,078,749 B2
• Filed: 08/21/2014
• Issued: 07/14/2015
• Est. Priority Date: 09/13/2007
• Status: Active Grant

• Current Assignee: Georg Lutter, Lucian Lozonschi
• Original Assignee: Georg Lutter, Lucian Lozonschi
• Inventors: Lutter, Georg, Lozonschi, Lucian
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): SCHALL, MATTHEW WAYNE
• Application Number:
  US14/465,437
• Publication Number:
  US 20140364944A1
• Time in Patent Office: 327 Days
• Field of Search: 623/2.1
• US Class Current: 1/1
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/0496 for tensioning sutures
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/2457 Chordae tendineae prostheses
• CPC Class Codes: A61F 2/2487 Devices within the heart chamber, e.g. splints
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2230/0078 hyperboloidal
• CPC Class Codes: A61F 2250/001 for adjusting a diameter

Abstract

A heart valve stent having a section with a heart valve implant and several proximally disposed tissue anchors, also comprising a plurality of anchoring threats, each with a proximate end fastened to the stent or valve and a distal end attached to tissue within a heart chamber to provide tension between the heart chamber tissue and the stent.

Claims

1. A prosthetic heart valve configured to be delivered to a native annulus of an atrioventricular value of a heart via an opening through a wall of a ventricle of the heart, comprising:

a self-expanding wire frame body having a proximal end and a distal end and shaped as a truncated cone;

a valve disposed in the body;

a plurality of self-expanding atrial anchoring elements distributed circumferentially about, and extending radially outwardly from, the proximal end of the body;

an anchoring suture having a first end and a second end, the first end being attached to the distal end of the body, the suture having a length sufficient to extend from the distal end of the body through the opening in the wall of the ventricle of the heart and out of the wall of the ventricle when the body is disposed in the native annulus of the atrioventricular valve of the heart.

2. The prosthetic heart valve of claim 1, wherein the body has a cross-sectional shape that is one of an oval or a u-shape.

3. The prosthetic heart valve of claim 2, wherein the body has a cross-sectional shape that is an oval with a flattened posterior side.

4. The prosthetic heart valve of claim 1, further comprising at least one regulatory element configured to adjust the length of the anchoring suture.

5. The prosthetic heart valve of claim 1, further comprising a sealing membrane covering the body.

6. The prosthetic heart valve of claim 1, further comprising a sealing membrane covering the atrial anchoring elements.

7. The prosthetic heart valve of claim 1, wherein the body is sized to fit within the native annulus of the atrioventricular valve of the heart, the atrial anchoring elements are sized to be larger than the native annulus, and the prosthetic heart valve is configured to be retained within the native annulus by application of tension to the anchoring suture, the tension resisted by engagement of the atrial anchoring elements with the native annulus.

8. The prosthetic heart valve of claim 1, wherein each of the atrial anchoring elements is triangular in plan view.

9. The prosthetic heart valve of claim 1, wherein each of the atrial anchoring elements is arch-shaped in plan view.

10. The prosthetic heart valve of claim 1, wherein the opening is through the apex of the ventricle.

11. The prosthetic heart valve of claim 1, wherein the anchoring suture is a first anchoring suture and further comprising at least a second anchoring suture.