Heart Valve Stent

• US 20110004296A1
• Filed: 09/10/2008
• Published: 01/06/2011
• Est. Priority Date: 09/13/2007
• Status: Abandoned Application

• Current Assignee: Georg Lutter, Lucian Lozonschi
• Original Assignee: Georg Lutter, Lucian Lozonschi
• Inventors: Lozonschi, Lucian, Lutter, Georg
• Application Number:
  US12/677,958
• Publication Number:
  US 20110004296A1
• Time in Patent Office: Days
• US Class Current: 623/1.26
• 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 (10) having a section equipped to receive a heart valve implant (30) and several proximally disposed anchoring elements (20), characterized by several anchoring threads (40), which with the one end thereof is fastened to the stent (10), and also with a brace (80) fastening the anchoring threads (40) with the other end thereof to the distal chamber wall to provide tension between the heart chamber wall and the proximally anchored anchoring elements (20).

Claims

1. A heart valve stent comprising:

a body section equipped to receive a heart valve implant;

a plurality of proximally disposed anchoring elements;

a plurality of anchoring threads, each having a first end portion attached to the stent, and a second end portion; and

a thrust bearing for securing the second end portions of the plurality of anchoring threads to a distal heart chamber wall to provide tension between the distal heart chamber wall and the proximally disposed anchoring elements, wherein the heart valve stent is formed as a truncated cone.

2. The heart valve stent according to claim 1, wherein the plurality of anchoring threads are affixed to an end portion of the body section that opposes the plurality of anchoring elements.

3. The heart valve stent according to claim 1, further comprising at least one suture-length regulatory element for adjusting a length of at least one of the plurality of anchoring threads.

4. The heart valve stent according to claim 1, wherein the thrust bearing constitutes a suture-length regulatory element.

5. The heart valve stent according to claim 1, further comprising a heart valve implant received in the body section.

6. The heart valve stent according to claim 11, wherein, in a plane of the mitral valve, an annulus of the heart valve stent is substantially oval or u-shaped.

8. The heart valve stent according to claim 5, further comprising a sealing membrane adapted to be arranged between the heart valve implant and the stent.

9. The heart valve stent according to claim 5, further comprising a sealing membrane arranged between the plurality of anchoring elements and the heart valve implant.

10. The heart valve stent according to claim 1, wherein at least one of the plurality of anchoring elements is made from a shape memory alloy.

11. The heart valve stent according to claim 5, wherein the heart valve implant constitutes a mitral valve.

7. (canceled)