Endovascular grafting device

• US 20030199973A1
• Filed: 02/26/2003
• Published: 10/23/2003
• Est. Priority Date: 02/26/2002
• Status: Active Grant

• Current Assignee: Lifeport Sciences LLC (Acacia Research Corporation)
• Original Assignee: Acacia Research Group LLC (Acacia Research Corporation)
• Inventors: Newhauser, Richard Jr., Iancea, Octavian, Chuter, Timothy A.M., Escano, Arnold M., Eckert, Robin W., Pollock, David T., Fitz, Matthew J., Perez, Juan I.
• Granted Patent: US 8,211,166 B2
• Time in Patent Office: Days
• US Class Current: 623/1.35
• 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 2002/8486 provided on at least one of the ends
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• 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 2230/0067 conical

Abstract

The present invention embodies an endovascular grafting device having a main body component and limb components. The device is contemplated to be assembled in-situ for the purpose of treating vascular defects or conditions.

Claims

1. A modular grafting device, comprising:

a plurality of graft portions; and

a plurality of stent structures attached to one or more of the graft portions.

2. A modular grafting device, comprising:

a bifurcated main body including a first leg and a second leg, the first leg being longer than the second leg, the second leg being attached along a portion of its length to the first leg;

at least one leg extender including an extender stent with hooks; and

a plurality of stents attached to the main body, each individual stent being configured in a longitudinally, non-overlapping manner along the main body;

wherein each of the plurality of stents have a different radial dimension or are each individually defined by struts having unique lengths or curvatures.

3. The device of claim 2, wherein at least one of the plurality of stents include a closed-cell configuration.

4. The device of claim 2, wherein at least one of the plurality of stents includes a half-cell configuration.

5. The device of claim 2, wherein at least one of the plurality of stents include helical apices.

6. The device of claim 2, wherein the main body includes a bifurcation point and further comprising a radiopaque marker at the bifurcation point.

7. The device of claim 2, wherein the hooks of the extender stent are adapted to extend through a wall defining the main body.

8. The device of claim 2, wherein the extender is tapered.

9. The device of claim 2, wherein the hooks of the extender stent extend through a wall defining the extender.

10. The device of claim 2, wherein selected struts of the plurality of stents are configured on an outside surface of the main body.

11. The device of claim 2, wherein the first leg is contemplated to extend to a branch vessel when placed within vasculature.

12. The device of claim 2, wherein one of the plurality of stents is configured about both the first and second legs.

13. The device of claim 2, wherein the first and second legs are attached along an entire length of the second leg.

14. The device of claim 2, wherein certain of the plurality of stents include a plurality of apices and closed-looped portions formed at one or more of the apices.

15. The device of claim 2, wherein certain of the plurality of stents include apices and further comprise hooks extending from the apices.

16. The device of claim 2, wherein certain of the plurality of stents include hooks formed along a midsection thereof.

17. The device of claim 2, wherein the plurality of stents are self-expanding.

18. The device of claim 2, wherein the leg extender is adapted to be placed within the second leg.

19. The device of claim 2, further comprising a superior stent connected to but longitudinally separated from the main body.

20. The device of claim 2, the main body further comprising main body radiopaque markers forming a dashed line and extending along only one of the first and the second legs and the extender includes extender radiopaque markers forming a dashed line extending along a length of the extender.