VASCULAR IMPLANTS AND METHODS

• US 20120191178A1
• Filed: 09/26/2011
• Published: 07/26/2012
• Est. Priority Date: 03/26/2009
• Status: Active Grant

• Current Assignee: Taheri Laduca LLC
• Original Assignee: Taheri Laduca LLC
• Inventors: LADUCA, Robert C.
• Granted Patent: US 9,820,875 B2
• Time in Patent Office: Days
• US Class Current: 623/1.16
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• 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 2/915 with bands having a meander structure, adjacent bands being connected to each other
• 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 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/8483 Barbs
• CPC Class Codes: A61F 2210/0004 bioabsorbable
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• 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 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2240/001 Designing or manufacturing processes
• CPC Class Codes: A61F 2250/0006 for adjusting angular orientation
• CPC Class Codes: A61F 2250/0007 for adjusting length
• CPC Class Codes: A61F 2250/0015 differing in density or specific weight
• CPC Class Codes: A61F 2250/0018 : differing in elasticity, stiffness or compressibility
• CPC Class Codes: A61F 2250/0032 : differing in radiographic density
• CPC Class Codes: A61F 2250/0039 : differing in diameter
• CPC Class Codes: A61F 2250/0067 : Means for introducing or releasing pharmaceutical products into the body

Abstract

The present invention is directed to vascular implants and methods for fabricating the same. The implantable devices include but are not limited to stents, grafts and stent grafts. In many embodiments, the devices include one or more side branch lumens interconnected with the main lumen.

Claims

1. A stent device for implantation within a tubular organ, the stent device comprising:

a plurality of stent rings comprising a resilient material, each ring separately formed in an convoluting shape having a plurality of apices;

a plurality of polymeric rings, each ring formed in an undulating shape having a plurality of apices;

a tubular body having a main lumen and formed by the plurality of stent rings and polymeric rings, where each stent ring is spaced from an adjacent stent ring and where each polymeric ring is interlaced with each adjacent stent ring such that application of a tensile force on the tubular body causes the tubular body to reduce in a diameter as the length of the tubular body extends.

2. The stent device of claim 1, where at least one of the plurality of stent rings is formed from a super-elastic alloy.

3. The stent device of claim 1, further comprising at least one side branch extending from the tubular body and having a side branch lumen wherein the at least one side branch lumen is adjustable relative to the main lumen.

4. The stent device of claim 3, where the side branch comprises a plurality of side-branch stent rings and side branch polymeric rings, where each polymeric ring is interlaced with each adjacent stent ring.

5. The stent device of claim 4, further comprising a second side branch lumen, where the first and second side branch lumens are spaced axially relative to each other.

6. The stent device of claim 4, wherein each of the first and second side branch lumens has an orientation with respect to the main lumen defined by a first angle and an axial orientation with respect to the other side branch lumen defined by a second angle, and a rotational orientation with respect to the other side branch lumen defined by a third angle.

7. The stent device of claim 6, wherein one or more of the orientations may be adjusted upon delivery and placement of the branch lumens within the vessel or tubular structure.

8. The stent device of claim 1, further comprising a graft material coaxial with the tubular body.

9. The stent device of claim 8, wherein at least one polymeric ring is affixed to the graft material such that the apices of the polymeric ring remain aligned with the apices of at least one stent ring.

10. The stent device of claim 9, where the at least one polymeric ring is affixed to the graft material by a suture material.

11. The stent device of claim 8, wherein at least one stent ring is affixed to the graft material such that the apices of the stent ring remain aligned with the apices of at least one polymeric ring.

12. The stent device of claim 8, where the graft material is located on an interior of the tubular body.

13. The stent device of claim 8, where the graft material is located on an exterior of the tubular body.

14. The stent device of claim 1, wherein said stent rings are formed from a self-expanding elastic material.

15. The stent device of claim 1, wherein said stent ring comprises stainless steel.

16. The stent device of claim 1, wherein at least one end of the tubular body comprises a flared end.

17. The stent device of claim 1, wherein the stent ring comprises a wire.

18. The stent device of claim 1, wherein the apices are V-shaped, U-shaped, or sinusoidal shaped.