Intraluminal graft assembly and vessel repair system

• US 20030191517A1
• Filed: 04/03/2002
• Published: 10/09/2003
• Est. Priority Date: 04/03/2002
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Incorporated (Cook Group Incorporated)
• Inventors: Osborne, Thomas A., Timmermans, Hans A.
• Granted Patent: US 6,939,369 B2
• Time in Patent Office: Days
• US Class Current: 623/1.13
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching

Abstract

An intraluminal graft assembly is provided. In one embodiment, the assembly comprises a support frame having first, radially smaller and second, radially larger configurations. A graft is attached to the support frame at one end by connectors and is not connected to the other end. The graft extends along only a fractional length of the support frame when in the first configuration, and substantially along the entire length of the support frame when in the second configuration. A vessel repair system is also provided. In the system, a driving member is positioned to force the support frame from the first configuration to the second configuration.

Claims

1. An intraluminal graft assembly, comprising:

a support frame comprising a tubular structure having a first end, a second end, a first configuration with a first length and a first diameter, and a second configuration with a second length that is shorter than the first length and a second diameter that is larger than the first diameter;

at least one connector on the first end of the support frame; and

a graft disposed on the support frame and attached to the first end by the at least one connector, the graft extending only along a fractional length of the first length of the support frame and not connected to the second end of the support frame.

2. The graft assembly of claim 1, wherein the graft extends substantially along the second length of the support frame.

3. The graft assembly of claim 1, wherein the connector extends in a direction away from the second end of the support frame.

4. The graft assembly of claim 1, wherein the graft has a thickness and defines an opening through the thickness, and wherein the connector passes through the opening.

5. The graft assembly of claim 4, wherein the support frame is formed of at least two frame threads having terminal ends;

and

wherein the connector comprises a barb formed of the terminal ends of two frame threads twisted together.

6. The graft assembly of claim 5, wherein the connector includes a tapered point.

7. The graft assembly of claim 6, wherein the connector extends in a direction away from the second end of the support frame.

8. The graft assembly of claim 1, wherein the connector comprises a suture passed through the graft and around a portion of the support frame.

9. The graft assembly of claim 1, wherein the fractional length is approximately ¼

, ½

, or ¾

of the first length.

10. The graft assembly of claim 1, wherein the graft comprises SIS.

11. An intraluminal graft assembly, comprising:

a support frame comprising a tubular structure having a first end, a second end, a first configuration with a first length and a first diameter, and a second configuration with a second length that is shorter than the first length and a second diameter that is larger than the first diameter;

a graft disposed on the support frame; and

means for attaching the graft to the first end of the support frame;

wherein the graft is not connected to the second end of the support frame and extends only along a fractional length of the first length of the support frame.

12. An intraluminal graft assembly, comprising:

a support frame comprising a tubular structure having a first end, a second end, a first configuration with a first length and a first diameter, and a second configuration with a second length that is shorter than the first length and a second diameter that is larger than the first diameter;

a plurality of connectors integrally formed with the support frame at the first end; and

a graft attached to the first end by the plurality of connectors, the graft extending only along a fractional length of the first length of the support frame and not connected to the second end of the support frame.

13. A system for repairing a vessel of a patient, said system comprising:

a deployment device comprising

a first sleeve having a proximal end, a distal end, and an inner surface defining a first lumen;

a second sleeve extending coaxially with the first sleeve and having a proximal end, a distal end, an outer surface and defining a second lumen, the second sleeve disposed in the first lumen to form an annular space between the inner surface of the first sleeve and the outer surface of the second sleeve; and

a driving member disposed in the second lumen;

a support frame comprising a tubular structure having a length, a first end, a second end, and at least one connector on the first end, the support frame substantially disposed in the second lumen such that the first end of the connector extends beyond the distal ends of the first and second sleeves; and

a graft attached to the connector and disposed substantially in the annular space.

14. The system of claim 13, wherein the support frame is in a radially compressed configuration and wherein the graft extends only along a fractional length of the length of the support frame.

15. The system of claim 13, wherein the connector extends in a direction away from the second end of the support frame.

16. The system of claim 13, wherein the graft has a thickness and defines an opening through the thickness, and wherein the connector passes through the opening.

17. The system of claim 16, wherein the support frame is formed of at least two frame threads having terminal ends;

and

wherein the connector comprises a barb formed of the terminal ends of two frame threads twisted together.

18. The system of claim 17, wherein the connector includes a tapered point.

19. The system of claim 17, wherein the connector extends in a direction away from the second end of the support frame.

20. The system of claim 13, wherein the connector comprises a suture passed through the graft and around a portion of the support frame.

21. The system of claim 13, wherein the graft is folded within the annular space.

22. A method of deploying a graft in a vessel, said method comprising:

providing a system comprising

a first sleeve having a proximal end, a distal end, and an inner surface defining a first lumen;

a second sleeve extending coaxially with the first sleeve and having a proximal end, a distal end, an outer surface, and defining a second lumen, the second sleeve disposed in the first lumen to form an annular space between the inner surface of the first sleeve and the outer surface of the second sleeve; and

a driving member disposed in the second lumen and having a driving end and an operating end near the proximal end of the first sleeve;

a support frame comprising a tubular structure having a length, a first end, a second end, and at least one connector on the first end, the support frame substantially disposed in the second lumen such that the connector extends beyond the distal ends of the first and second sleeves; and

a graft attached to the first end of the support frame by the connector and not connected to the second end of the support frame, the graft being disposed substantially in the annular space;

and

manipulating the operating end of the driving member such that the driving end forces the support frame out of the second lumen and the graft out of the annular space.

23. The method of claim 22, wherein the support frame has a first configuration with a first diameter and a second configuration with a second larger diameter;

wherein the support frame changes to the second configuration as it exits the second lumen;

wherein the graft extends only along a fractional length of the length of the support frame when in the first configuration; and

further comprising allowing the graft to extend substantially along the entire length of the support frame as the support frame changes from the first configuration to the second configuration.

24. The method of claim 22, further comprising inserting the proximal ends of the first and second sleeves into said vessel and navigating the proximal ends of the first and second sleeves to a point in said vessel that is in need of artificial support.