Apparatus for treatment of cardiac valves and method of its manufacture

• US 20060206202A1
• Filed: 11/18/2005
• Published: 09/14/2006
• Est. Priority Date: 11/19/2004
• Status: Active Grant

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Bonhoeffer, Philippe, Taitague, Debra Ann
• Granted Patent: US 8,562,672 B2
• Time in Patent Office: Days
• US Class Current: 623/2.110
• CPC Class Codes: A61F 2/2415 Manufacturing methods
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2433 using balloon catheter
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2475 Venous valves
• 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 2230/0054 V-shaped
• CPC Class Codes: A61F 2250/0097 Visible markings, e.g. indicia

Abstract

A prosthetic valve including a replacement valve having a tubular valve body wall, an expandable stent having a framework with first and second ends, and suturing holding the framework to the valve body at the first and second ends. The suturing at the first end is colored differently from the suturing at the second end.

Claims

1. A prosthetic valve, comprising;

a replacement valve having a substantially tubular valve body wall;

an expandable stent having a framework including a plurality of “

V”

structures, each having a base; and

sutures located at each base holding the valve body wall to the stent.

2. A prosthetic valve according to claim 1, wherein the replacement valve is a valved vein segment and the valve body wall is the wall of the vein segment.

3. A prosthetic valve according to claim 1, further comprising a first visual indicator at a first end of the framework.

4. A prosthetic valve according to claim 1, wherein each “

V”

structure further comprises first and second arms that extend from the base, and wherein sutures are located along the length of at least one of the first and second arms of at least one of the “

V”

structures.

5. A prosthetic valve according to claim 4, wherein the plurality of “

V”

structures extend around a circumference of the framework, and wherein sutures secure the stent to the valve body wall at the bases and along the arms of all of the “

V”

structures around the circumference along a first end of the framework.

6. A prosthetic valve according to claim 5, wherein the sutures along the first end of the framework are visual indicators for differentiating the first end of the framework from a second end of the framework.

7. A prosthetic valve according to claim 5, wherein the sutures along the first end of the framework are a color that is visually detectable.

8. A prosthetic valve according to claim 5, wherein the sutures along the first end of the framework have a different color than sutures provided along a second end of the framework.

9. A prosthetic valve, comprising;

a replacement valve having a substantially tubular valve body wall;

an expandable stent having a framework; and

a plurality of sutures holding the framework to the stent, distributed such that no point on the valve body wall is more than 7 mm from one of the sutures.

10. A prosthetic valve according to claim 9, wherein the replacement valve is a valved vein segment and the valve body wall is the wall of the vein segment.

11. A prosthetic valve according to claim 10 wherein the valved vein segment is a valved segment of bovine jugular vein.

12. A prosthetic valve according to claim 9, wherein visually detectable sutures are provided along a first end of the framework.

13. A prosthetic valve, comprising;

a replacement valve having a substantially tubular valve body wall;

an expandable stent having a framework with first and second ends; and

a plurality of sutures holding the framework to the valve body wall at the first and second ends, wherein the sutures at the first end are visually distinct from the sutures at the second end.

14. The prosthetic valve of claim 13, wherein the sutures at the first end of the framework have a different color than the sutures at the second end of the framework.

15. A prosthetic valve, comprising;

a replacement valve having a substantially tubular valve body wall;

an expandable stent having a framework with first and second ends; and

a colored indicator located at one of the first and second ends.

16. A prosthetic valve according to claim 15 having colored indicators located at both the first and second ends, the marker at the first end colored differently from the marker at the second end.

17. A prosthetic valve and delivery system, the valve mountable to the delivery system in either first or second orientations, wherein the prosthetic valve comprises:

a replacement valve having a generally tubular valve body wall;

an expandable stent having a framework with first and second ends; and

a plurality of sutures holding the framework to the valve body wall at the first and second ends, wherein the sutures at the first end are visually distinct from the sutures at the second end;

wherein the delivery system is provided with at least one visual indicator that corresponds with the sutures at the first end of the framework; and

wherein the at least one visual indicator is located such that when the valve is mounted in the first orientation relative to the delivery system, the at least one visual indicator is adjacent to the first end of the framework.

19. A prosthetic valve and delivery system, the valve mountable to the delivery system in either correct or incorrect manners, wherein the prosthetic valve comprises:

a replacement valve having a tubular valve body wall;

an expandable stent having a framework with first and second ends; and

a colored marker located at one of the first and second ends;

wherein the delivery system is provided with a colored component of generally the same color as the marker; and

wherein the colored component is located such that when the valve is correctly mounted to the delivery system, the colored component is adjacent to the colored marker.

18. The prosthetic valve and delivery system of claim 19, wherein the first orientation of the valve relative to the delivery system corresponds to a correct valve orientation, and wherein the second orientation of the valve relative to the delivery system corresponds to an incorrect valve orientation.