Modular graft component junctions

• US 8,337,547 B2
• Filed: 05/17/2007
• Issued: 12/25/2012
• Est. Priority Date: 04/29/2000
• Status: Expired due to Fees

• Current Assignee: Lifeport Sciences LLC (Acacia Research Corporation)
• Original Assignee: EndoVascular Technologies Incorporated (Boston Scientific Corporation)
• Inventors: Iancea, Octavian, Chuter, Timothy A. M., Escano, Arnold M., Hayashi, Reid, Eckert, Robin W., Fitz, Matthew J., Farahani, Shahrokh R., Perez, Juan I., Newhauser, Richard, Pollock, David T., Tesar, Aleta
• Primary Examiner(s): Bui, Vy Q
• Application Number:
  US11/750,198
• Publication Number:
  US 20070276462A1
• Time in Patent Office: 2,049 Days
• Field of Search: 623 11- 136, 606/108, 606/195, 606/194, 606/198
• US Class Current: 623/1.36
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/856 Single tubular stent with a side portal passage
• 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 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• 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 2002/91541 Adjacent bands are arranged out of phase
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2210/0076 multilayered, e.g. laminated structures
• 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 2220/0041 using additional screws, bolts, dowels or rivets, e.g. connecting screws
• 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 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2230/0067 conical

Abstract

The present invention embodies an endovascular graft having an attachment frame connection mechanism that allows placement of the main body component in vasculature in combination with limb components. Various limb component-to-main body component attachment mechanisms are provided which ensure a reliable bond while facilitating a smaller delivery profile.

Claims

1. A modular graft device for treating vasculature, comprising:

a first graft component configured with at least one receiving element radially extending inward;

a second graft component with a proximal end to be inserted into an orifice of the first graft component comprising a stent having at least one component radially extending outward that engages the at least one receiving element of the first graft component; and

a mechanical joint between the first and second graft components, the mechanical joint having structure such that the bond between the first and second graft components is strengthened as the longitudinal load on the mechanical joint increases.

2. The modular graft device of claim 1, wherein the first and second graft components are mechanically interconnected by the at least one radially extending component being embedded in the first graft component when inserted into the orifice.

3. The modular graft device of claim 1, the mechanical joint further comprising an inner cuff attached to the first graft component.

4. The modular graft device of claim 1, the mechanical joint further comprising an inward taper attached to the first graft component.

5. The modular graft device of claim 1, the mechanical joint further comprising an inner flap attached to the first graft component.

6. The modular graft device of claim 1, wherein one of the first or second graft components is flared.

7. The modular graft device of claim 1, the mechanical joint further comprising an outward protrusion attached to the second graft component.

8. The modular graft device of claim 1, the mechanical joint further comprising an outward taper attached to the second graft component.

9. The modular graft device of claim 1, the mechanical joint further comprising an outer flap attached to the second graft component.

10. The modular graft device of claim 1, the first component further comprising a tapered sleeve that facilitates funneling of blood to the second graft component.

11. The modular graft device of claim 1, wherein the first graft component is bifurcated.

12. The modular graft device of claim 1, further comprising at least one self-expanding stent which is operatively associated with the mechanical joint.

13. A modular graft device for treating vasculature, comprising:

a first graft component configured with a radially adjustable structure and at least one receiving element radially extending inward; and

a second graft component with a proximal end to be inserted into an orifice of the first graft component comprising a stent having at least one component radially extending outward that engages the at least one receiving element of the first graft component, which when placed in contact with the first graft component, causes the radially adjustable structure to accomplish an attachment between the first graft component and the second graft component.

14. The modular graft device of claim 13, the radially adjustable structure further comprising a thread.

15. The modular graft device of claim 14, wherein the thread is configured into a form of a lasso.

16. The modular graft device of claim 15, the lasso further comprising a plurality of slip knots.

17. The modular graft device of claim 15, the lasso further comprising a first slip knot and a second slip knot positioned proximal the first slip knot.

18. The modular graft device of claim 17, the second graft component further comprising a self-expanding frame which causes a slip knot to tighten when the frame expands.

19. The modular graft device of claim 18, further comprising at least one expandable frame attached to the first graft component.

20. The modular graft device of claim 18, further comprising at least one expandable frame attached to the second graft component.

21. The modular graft device of claim 13, wherein the first graft component is bifurcated.

22. The modular graft device of claim 13, wherein the second graft component has a generally tubular configuration.