Truncated cone heart valve stent

• US 9,095,433 B2
• Filed: 10/18/2011
• Issued: 08/04/2015
• 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:
  US13/275,683
• Publication Number:
  US 20120035713A1
• Time in Patent Office: 1,386 Days
• Field of Search: 623/2.17, 623/1.26
• 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 heart valve stent, comprising:

a self-expanding catheter-inserted stent body section with valve leaflets disposed therein and self-expanding atrial retaining braces for atrial anchoring located at a proximal end of said stent body section said atrial retaining braces comprising a retaining skirt of a plurality of radial tooth-like projections circumferentially disposed around the proximal end of the stent body section, said tooth-like projections having a serrated, arched or triangular shape and extending radially outward from the proximal end of said stent body section at an angle bent away from the stent body section, said projections covered with a sealing membrane; and

at least one ventricular anchoring suture attached to a distal end of said stent body section.

2. The heart valve stent of claim 1, further comprising wherein the ventricular anchoring suture is adjustable.

3. The heart valve stent of claim 1, further comprising wherein the heart valve implant is integrated within the lumen of the stent body section near or at the proximal end of the stent body section.

4. The heart valve stent of claim 3, wherein the heart valve implant further comprises one of the group of a circular, oval-shaped and u-shaped annulus.

5. The heart valve stent of claim 3, further comprising wherein the heart valve implant is a mitral valve.

6. The heart valve stent of claim 3, further comprising wherein the heart valve implant is a tricuspid valve.

7. The heart valve stent of claim 3, further comprising a sealing membrane between the heart valve implant and the stent.

8. The heart valve stent of claim 1, wherein the stent body is further comprised of a cross-hatching of metal wire, including but not limited to the group of diamond-shaped hatching, loop-shaped hatching, or a similar pattern.

9. The heart valve stent of claim 8, further comprising wherein the wire is made from a shape memory alloy.

10. The heart valve stent of claim 8, wherein the stent body is foldable and self-expanding.

11. A heart valve stent, shaped as a truncated cone, comprising:

a foldable, self-expanding stent body section with a heart valve implant, wherein the stent body section is comprised of a cross-hatching of metal wire made from a shape memory alloy, including but not limited to the group of diamond-shaped hatching, loop-shaped hatching, or a similar pattern;

self-expanding atrial retaining braces for atrial anchoring located at a proximal end of said stent body section, said atrial retaining braces comprising a retaining skirt of a plurality of radial tooth-like projections circumferentially disposed around the proximal end of the stent body section, said tooth-like projections having a serrated, arched or triangular shape and extending radially outward from the proximal end of said stent body section at an angle bent away from the stent body section, said projections covered with a sealing membrane;

said heart valve implant integrated within the lumen of the stent body section at or near the proximal end of the stent body section;

said heart valve stent further comprising a circular, oval-shaped or u-shaped annulus and either a mitral valve or a tricuspid valve; and

, at least one ventricular anchoring suture; and

wherein the ventricular anchoring suture is adjustable.