Secured strand end devices

• US 9,585,776 B2
• Filed: 08/05/2016
• Issued: 03/07/2017
• Est. Priority Date: 10/22/2006
• Status: Active Grant

• Current Assignee: Idev Technologies, Inc. (Abbott Laboratories Incorporated)
• Original Assignee: Idev Technologies, Inc. (Abbott Laboratories Incorporated)
• Inventors: Sheldon, Jeffery, Booth, Richard, Bueche, Kenneth M.
• Primary Examiner(s): Bryant, David
• Assistant Examiner(s): YOO, JUN S
• Application Number:
  US15/229,844
• Publication Number:
  US 20160338860A1
• Time in Patent Office: 214 Days
• US Class Current: 1/1
• CPC Class Codes: A46D 1/0207 Bristles characterised by the choice of material, e.g. metal
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/844 folded prior to deployment
• CPC Class Codes: A61F 2/86 Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/885 comprising a coil including a plurality of spiral or helical sections with alternate directions around a central axis
• 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 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/061 provided with means for allowing access to secondary lumens
• CPC Class Codes: A61F 2002/91591 Locking connectors, e.g. using male-female connections
• CPC Class Codes: A61F 2002/9534 for repositioning of stents
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: B23K 2101/32 Wires
• CPC Class Codes: B23K 2103/14 Titanium or alloys thereof
• CPC Class Codes: B23K 26/20 Bonding soldering by means of radiant energy B23K1/005; joining of preformed plastics parts by heating using laser beam B29C65/16
• CPC Class Codes: B23K 26/244 Overlap seam welding
• CPC Class Codes: D03D 3/02 : Tubular fabrics
• CPC Class Codes: D04C 1/06 : Braid or lace serving particular purposes
• CPC Class Codes: D06C 7/00 : Heating or cooling textile fabrics
• CPC Class Codes: D10B 2509/00 : Medical; Hygiene
• CPC Class Codes: D10B 2509/06 : Vascular grafts; stents
• CPC Class Codes: Y10T 29/49849 : by wrapping around

Abstract

A woven, self-expanding stent device has one or more strands and is configured for insertion into an anatomical structure. The device includes a coupling structure secured to two different strand end portions that are substantially aligned with each other. The two different strand end portions include nickel and titanium. The coupling structure is not a strand of the device.

Claims

1. A self-expanding stent comprising:

a multiple number of strands each including a strand portion on both sides of a first strand bend, each of the strand portions having an end, the strand portions being woven, some of the strand portions including a second strand bend and being back braided by at least two strand crossings, pairs of the strand portion ends secured together, each of the pairs of said strand portion ends including two strand portion ends of two different strands or the same strand; and

a multiple number of coupling structures, the number of coupling structures equal to the number of strands, the coupling structures being different than the strands, each of the coupling structures secured to one of the pairs of strand portion ends,

wherein at least one crossing strand crosses over each of the coupling structures at a position radially outward from the coupling structure.

2. The stent of claim 1, wherein each of the coupling structures includes a passageway containing the pair of strand portion ends.

3. The stent of claim 1, wherein each of the coupling structures is welded to each of the strand portion ends of the pair of strand portion ends.

4. The stent of claim 1, wherein the strand portion ends in each pair of strand portion ends are spaced from each other.

5. The stent of claim 1, wherein the strands comprise Nitinol.

6. The stent of claim 1, wherein the coupling structures comprise Nitinol.

7. The stent of claim 1, wherein each of the coupling structures includes a passageway having a diameter sized to receive one said strand.

8. The stent of claim 1, wherein the two strand portion ends in each of the pairs of strand portion ends are aligned end-to-end.

9. The stent of claim 1, wherein the two strand portion ends in each of the pairs of strand portion ends are overlapping.

10. The stent of claim 1,

wherein each of the coupling structures includes a passageway having a diameter sized to receive one said strand and containing the pair of strand portion ends;

wherein each of the coupling structures is welded to each of the strand portion ends of the pair of strand portion ends;

wherein the strand portion ends in each pair of strand portion ends are spaced from each other;

wherein the strands comprise Nitinol and the coupling structures comprise Nitinol; and

wherein the two strand portion ends in each of the pairs of strand portion ends are aligned end-to-end.

11. A self-expanding stent comprising:

a multiple number of strands each including a strand portion on both sides of a first strand bend, each of the strand portions having an end, the strand portions being woven, some of the strand portions including a second strand bend, pairs of said strand portion ends including two strand portion ends of two different strands or the same strand; and

a multiple number of joint assemblies, the number of joint assemblies equal to the number of strands, each said joint assembly comprising one of said pairs of said strand portion ends,

wherein at least one crossing strand crosses over each of the joint assemblies at a position radially outward from the joint assembly.

12. The stent of claim 11, wherein the two strand portion ends in each of the pairs of strand portion ends are aligned end-to-end.

13. The stent of claim 11, wherein the two strand portion ends in each of the pairs of strand portion ends are overlapping.

14. The stent of claim 11, wherein each joint assembly comprises a coupling structure, each of the coupling structures secured to one of the pairs of strand portion ends.

15. The stent of claim 14, wherein the coupling structures are different than the strands.

16. The stent of claim 14, wherein the number of coupling structures is equal to the number of strands.

17. The stent of claim 14, wherein each of the coupling structures is welded to each of the strand portion ends of the pair of strand portion ends.

18. The stent of claim 14, wherein each of the coupling structures includes a passageway having a diameter sized to receive one said strand.

19. The stent of claim 11, wherein the strand portion ends in each pair of strand portion ends are spaced from each other.

20. The stent of claim 11,

wherein the two strand portion ends in each of the pairs of strand portion ends are aligned end-to-end;

wherein each joint assembly comprises a coupling structure, each of the coupling structures secured to one of the pairs of strand portion ends;

wherein the coupling structures are different than the strands;

wherein the number of coupling structures is equal to the number of strands;

wherein each of the coupling structures is welded to each of the strand portion ends of the pair of strand portion ends;

wherein each of the coupling structures includes a passageway having a diameter sized to receive one said strand and containing the pair of strand portion ends; and

wherein the strand portion ends in each pair of strand portion ends are spaced from each other.