Anatomically curved graft for implantation at the aortic arch

• US 20030109919A1
• Filed: 12/07/2001
• Published: 06/12/2003
• Est. Priority Date: 12/07/2001
• Status: Active Grant

• Current Assignee: Maquet Cardiovascular LLC (Getinge AB)
• Original Assignee: Boston Scientific Corporation
• Inventors: Fieggen, Bruce, Gantt, Samuel
• Granted Patent: US 6,770,090 B2
• Time in Patent Office: Days
• US Class Current: 623/1.35
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2002/061 provided with means for allowing access to secondary lumens
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2240/001 Designing or manufacturing processes

Abstract

An implantable textile prosthesis which is anatomically curved to substantially match the natural curvature of the aortic arch in a human being or patient is provided. The first woven section is arched define an apical region and to conform generally to an aortic arch of a human patient. A plurality of elongate woven tubular extents extend vertically from a top wall portion at the apical region of the tubular main wall. These tubular extents are sutured to the first woven section to provide fluid communication between the tubular main wall and the tubular extents.

Claims

1. An implantable textile prosthesis for comprising:

a first woven section comprising an elongate tubular main wall having a first and a second open end defining a fluid passageway therethrough and further defining a lateral wall portion, a top wall portion and a bottom wall portion extending longitudinally therebetween, the first woven section being arched to conform generally to an aortic arch of a human patient and defining an apical region of the tubular main wall between the first and second open ends; and

a plurality of elongate woven tubular extents extending vertically from the top wall portion at the apical region of the tubular main wall and being sutured to the first woven section to provide fluid communication between the tubular main wall and the tubular extents.

2. The prosthesis of claim 1, wherein the first woven section has a radius of curvature from about 20 mm to about 80 mm.

3. The prosthesis of claim 2, wherein the first woven section has an angle of curvature from about 15 to 90 degrees.

4. The prosthesis of claim 1, wherein the first open end is disposed at an angle from about 135 degrees to about 225 degrees relative to the first open end.

5. The prosthesis of claim 1, wherein the lateral wall portions of the first open end, the apical region and the second open end are substantially planar.

6. The prosthesis of claim 1, wherein the first and second open ends are skewed from about 2 degrees to about 30 degrees at a vertex of a geodesic line from the lateral portions of the first open end to the apical region with a geodesic line from the lateral portions of the second open end and the apical region.

7. The prosthesis of claim 1, wherein the plurality of elongate tubular extents are spaced along an axis with respect to the tubular main wall.

8. The prosthesis of claim 1, wherein the plurality of elongate tubular extents are circumferentially offset with respect to said tubular main wall.

9. The prosthesis of claim 1, wherein the plurality of elongate tubular extents have substantially the same diameters.

10. The prosthesis of claim 1, wherein the plurality of elongate tubular extents have different diameters with respect to each other.

11. The prosthesis of claim 1, wherein the plurality of elongate tubular extents have substantially the same lengths.

12. The prosthesis of claim 1, wherein the plurality of elongate tubular extents have different lengths with respect to each other.

13. The prosthesis of claim 1, wherein the plurality of elongate tubular extents include at least three elongate tubular extents.

14. The prosthesis of claim 1, further including an elongate tubular port extending laterally from the tubular main wall at the lateral wall portion of the apical portion.

15. The prosthesis of claim 1, wherein the tubular main wall and the tubular branch extents wall are constructed of material selected from the group consisting of polyester, polypropylene, polyethylene, polyurethane, polytetrafluoroethylene and mixtures thereof.

16. An anatomically curved implantable textile prosthesis for comprising:

a first woven section comprising an elongate tubular main wall having a first and a second open end defining a fluid passageway therethrough and further defining a lateral wall portion, a top wall portion and a bottom wall portion extending longitudinally therebetween, the first woven section having a radius of curvature from about 20 mm to about 80 mm to conform generally to an aortic arch of a patient and defining an apical region of the main tubular wall between the first and second open ends, wherein the first open end is angularly disposed from about 135 degrees to about 225 degrees from the second open end; and

a plurality of elongate woven tubular extent extending vertically from the top wall portion at the apical portion of the tubular main wall and being sutured to the first woven section to provide fluid communication between the tubular main wall and the tubular extents.

17. The prosthesis of claim 16, wherein the first woven section has an angle of curvature from about 15 degrees to about 90 degrees.

18. The prosthesis of claim 16, wherein the plurality of elongate tubular extents include at least three elongate tubular extents.

19. The prosthesis of claim 16, further including an elongate tubular port extending laterally from the tubular main wall at the lateral wall portion of the apical portion.

20. The prosthesis of claim 16, wherein the tubular main wall and the tubular branch extents wall are constructed of material selected from the group consisting of polyester, polypropylene, polyethylene, polyurethane, polytetrafluoroethylene and mixtures thereof.

21. An arched implantable textile prosthesis for comprising:

a first woven section comprising an elongate tubular main wall having a first and a second open end defining a fluid passageway therethrough and further defining a lateral wall portion, a top wall portion and a bottom wall portion extending longitudinally therebetween, the first woven section being arched with a radius of curvature from about 150 mm to about 300 mm defining an apical region of the main tubular wall between the first and second open ends; and

a plurality of elongate woven tubular extent extending vertically from the top wall portion at the apical portion of the tubular main wall and being sutured to the first woven section to provide fluid communication between the tubular main wall and the tubular extents;

wherein the first woven section can be further arched to a radius of curvature of from about 20 mm to about 80 mm to conform generally to an aortic arch of a patient without kinking of the tubular main wall.

22. A method of producing an anatomically curved implantable textile prosthesis for comprising:

weaving a first woven section comprising an elongate tubular main wall having a first and a second open end defining a fluid passageway therethrough;

providing a curved mandrel having a radius of curvature generally conforming to the curve of an aortic arch of a human patient;

placing the first woven section over the mandrel;

heat setting the first woven section to set the shape of the first woven section; and

removing the first woven section from the mandrel to provide an anatomically curved tubular main wall.

23. The method of claim 22 wherein the mandrel has a radius of curvature from about 20 mm to about 80 mm.

24. The method of claim 23, wherein the mandrel has an angle of curvature from about 15 degrees to about 90 degrees.

25. The method of claim 22, wherein the mandrel has opposed ends with one end being angularly disposed from about 135 degrees to about 225 degrees relative to the other end.

26. The method of claim 22, wherein the mandrel is substantially planar.

27. The mandrel of claim 22, wherein a geodesic line from the lateral portions of the first open end to the apical region forms a vertex from about 2 degrees to about 30 degrees with a geodesic line from the lateral portions of the second open end and the apical region.

28. The method of claim 22, further including:

weaving a plurality of elongate woven tubular extents having opposed open ends to define fluid passageways therethrough;

providing a plurality of holes in the elongate tubular main wall; and

securably attaching the plurality of tubular extents to the main tubular wall to provide fluid communication between the tubular main wall and the tubular extents.

29. The method of claim 28, wherein the tubular main wall and the tubular branch extents wall are constructed of material selected from the group consisting of polyester, polypropylene, polyethylene, polyurethane, polytetrafluoroethylene and mixtures thereof.

30. A method of treating a patient in need of an aortic arch prosthesis comprising:

providing an anatomically curved or significantly arched tubular prosthesis having a main tubular portions having opposed open ends and lateral tubular branches;

preparing portions of an aorta of the patent for surgery and reception of the prosthesis;

connecting one end of the main tubular portion to the descending aorta;

connecting the aortic arteries to the lateral tubular branches; and

connecting the other end of the main tubular portion to the ascending aorta to provide fluid communication among the ascending aorta, the aortic branches and the descending aorta.