Endoluminal prosthetic device

• US 20050159803A1
• Filed: 01/18/2005
• Published: 07/21/2005
• Est. Priority Date: 01/20/2004
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Incorporated (Cook Group Incorporated)
• Inventors: DeBruyne, Michael P., Osborne, Thomas A., Lad, Ashvin
• Granted Patent: US 8,348,988 B2
• Time in Patent Office: Days
• US Class Current: 623/1.130
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2002/067 modular
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• 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 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0067 conical

Abstract

An endoluminal prosthetic device for placement in a body lumen is formed by stitching stents to a graft. A first or anchoring stent is used for securing a graft made of biocompatible material that forms at least one lumen. There is also a second stent. The first and second stents each include a plurality of struts and apices between the struts. At least two of the apices in each of the first and second stents are secured to the graft by stitches. A running suture links at least one stitch of the first stent and one stitch of the second stent. The running suture linking the first stent and the second stent adds strength to the stitches and better secures the first stent to the device. The endoluminal prosthetic device may be used in an aortic vessel to treat stenoses or aneurysms.

Claims

1. An endoluminal prosthetic device, comprising:

a graft comprising a bio-compatible material forming at least one lumen;

a first stent comprising a plurality of struts and apices between the struts, at least two of the apices in the first stent secured to the graft by stitches; and

a second stent comprising a plurality of struts and apices between the struts, at least two of the apices in the second stent secured to the graft by stitches,

wherein at least one stitch of the first stent and at least one stitch of the second stent are joined in a running suture.

2. The endoluminal prosthetic device of claim 1, wherein the first stent is an anchoring stent and the second stent is an internal stent.

3. The endoluminal prosthetic device of claim 1,

wherein the graft is made of material selected from the group consisting of polyester, polyurethane, polyethylene, polypropylene and polytetrafluoroethylene.

4. The endoluminal prosthetic device of claim 1,

wherein the sutures further comprise monofilament or braided multifilament material selected from the group consisting of polyester, nylon, polyaramid, polypropylene, and polyethylene.

5. The endoluminal prosthetic device of claim 1,

wherein the stents comprise material selected from the group consisting of stainless steel, titanium, and shape memory material.

6. The endoluminal prosthetic device of claim 1, further comprising a cuff on the graft.

7. The endoluminal prosthetic device of claim 1, wherein the graft incorporates biomaterial selected from the group consisting of collagen, extracellular matrix material, and small intestine submucosa (SIS).

8. The endoluminal prosthetic device of claim 1,

wherein at least one of the first stent and the second stent are secured by an additional stitch on at least two of the struts.

9. The endoluminal prosthetic device of claim 1,

wherein the first stent is an anchoring stent and wherein at least one of the struts further comprises a barb for retaining the endoluminal prosthetic device in place.

10. The endoluminal prosthetic device of claim 1, further comprising additional stitches linked to the running suture.

11. The endoluminal prosthetic device of claim 1, further comprising at least one additional stitch linked to the running suture, wherein at least two stitches share an opening in the graft.

12. The endoluminal prosthetic device of claim 11,

wherein the at least two stitches are within five graft threads of each other.

13. The endoluminal prosthetic device of claim 11,

wherein the at least two stitches are within one suture diameter of each other.

14. A method of forming an endoluminal prosthetic device, the method comprising:

providing a graft;

joining a first stent to the graft, the first stent comprising a plurality of struts and apices between the struts, by at least one stitch on each apex;

joining a second stent to the graft, the second stent comprising a plurality of struts and apices between the struts, by at least one stitch on each apex and

linking at least one stitch of the first stent and one stitch of the second stent with a running suture.

15. The method of claim 14,

wherein the first stent is an anchoring stent and further comprising forming a barb on at least one strut of the anchoring stent.

16. The method of claim 14, further comprising folding the graft to form a cuff before the step of joining the first stent.

17. The method of claim 14, further comprising forming at least one penetration in the graft before the steps of joining.

18. The method of claim 14, further comprising linking at least one additional stitch to the running suture.

19. The method of claim 14, further comprising linking at least one additional stitch to the running suture,

wherein at least two stitches share an opening in the graft.

20. The method of claim 14, further comprising linking at least one additional stitch to the running suture,

wherein at least two stitches are within one suture diameter of each other.