IP Library › Granted Patent US 12,329,667
Granted Patent B2
US 12,329,667 · App. 18/529,931 · Granted Jun 17, 2025

Stent having adjacent elements connected by flexible webs

Inventors: Dustin C. Burkart (Bellemont, AZ); Edward H. Cully (Clarksville, VA); Jeffrey B. Duncan (Flagstaff, AZ); Cody L. Hartman (Flagstaff, AZ); James D. Silverman (Flagstaff, AZ)
Assignee: W. L. Gore & Associates, Inc.
A61F2/91A61F2/07A61F2/86A61F2/915A61F2002/075A61F2002/826A61F2002/828A61F2/89A61F2/90A61F2002/91558
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Quick Facts
Patent No.
US 12,329,667
App. No.
18/529,931
Granted
Jun 17, 2025
Kind
B2
Abstract

A stent incorporating flexible, preferably polymeric, connecting elements into the stent wherein these elements connect adjacent, spaced-apart stent elements. Preferably the spaced-apart adjacent stent elements are the result of forming the stent from a helically wound serpentine wire having space provided between adjacent windings. Other stent forms such as multiple, individual spaced-apart ring-shaped or interconnected stent elements may also be used. The connecting elements are typically web-shaped and result from creating slits or apertures in a covering of graft material applied to the stent and then, for example, applying heat to cause the slits or apertures to enlarge. The remaining graft material forms the interconnecting webs between the adjacent stent elements.

Claims (26)

1. An endoprosthesis having a length, a radius, and a circumference, the endoprosthesis comprising:

a stent having a plurality of stent elements forming a serpentine pattern with multiple apices; and

at least two polymeric webs that attach a first apex of a first stent element of the plurality of stent elements to at least two positions of a second stent element of the plurality of stent elements.

2. The stent according to claim 1 , wherein the plurality of stent elements are in the form of helically wound wire.

3. The stent according to claim 2 , wherein said wire comprises nitinol.

4. The stent according to claim 1 , wherein said polymeric webs comprise ePTFE.

5. The stent according to claim 4 , wherein said polymeric webs further comprise fluorinated ethylene propylene.

6. The stent according to claim 1 , wherein said stent elements comprise stainless steel.

7. The stent according to claim 1 , wherein said stent is an open frame stent.

8. The stent according to claim 1 , wherein said polymeric webs are melt-bonded to said stent elements.

9. The stent according to claim 1 , wherein said stent has a length and said polymeric webs are continuous along said length.

10. The stent according to claim 1 , wherein the at least two polymeric webs define a first opening positioned between the first stent element and the second stent element, the first opening having a first shape; and a second opening positioned between the first stent element and the second stent element, the second opening having a second shape different than the first shape.

11. An endoprosthesis having a length, a radius, and a circumference, the endoprosthesis comprising:

a stent having a plurality of windings with multiple apices; and

a polymeric web attaching an apex of a first winding of the plurality of windings with a second winding of the plurality of windings, wherein a center of a length of the polymeric web forms an angle of between 15 and 75 degrees with respect to a line parallel with a longitudinal centerline of the stent.

12. The endoprosthesis of claim 11 , wherein the polymeric web is formed of a film.

13. The endoprosthesis of claim 11 , wherein the polymeric web has a first width at a middle portion of said polymeric web and a second width at an end portion of said polymeric web adjacent to either of the first winding or the second winding, the first width being less than the second width.

14. The endoprosthesis of claim 11 , wherein the polymeric web merges tangentially into at least one of the first winding or the second winding.

15. The endoprosthesis of claim 11 , further comprising a second polymeric web attaching the apex of the first winding to a second position on the second winding.

16. The endoprosthesis of claim 15 , wherein the second position on the second winding is a straight portion between two apices of the second winding.

17. An endoprosthesis having a length, a radius, and a circumference, the endoprosthesis comprising:

a stent having a plurality of stent elements forming a plurality of apices, each apex connected to an adjacent apex with a straight portion of the stent element; and

a film web extending from an apex of a first stent element of the plurality of stent elements to a second stent element of the plurality of stent elements, the film web including an extension which extends along a straight portion of the first stent element so that the first stent element is covered by the film web.

18. The endoprosthesis of claim 17 , wherein the film web further includes a second extension which extends away from the straight portion of the first stent element toward the second stent element of the plurality of stent elements.

19. The endoprosthesis of claim 17 , wherein the film web covers an entire length of the first stent element between adjacent apices.

20. The endoprosthesis of claim 17 , wherein the film web defines openings in the endoprosthesis.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2024
From: GORE ENTERPRISE HOLDINGS, INC.
To: W. L. GORE & ASSOCIATES, INC.
Reel/Frame 069717/0024 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 13, 2024
From: BURKART, DUSTIN C.; CULLY, EDWARD H.; DUNCAN, JEFFREY B.; HARTMAN, CODY L.; SILVERMAN, JAMES D.
To: GORE ENTERPRISE HOLDINGS, INC.
Reel/Frame 069582/0302 →
Continuity (6)
Continuation 17397362 · Aug 9, 2021
Continuation 15915453 · Mar 8, 2018
Continuation 13349346 · Jan 12, 2012
Continuation 12350921 · Jan 8, 2009
Provisional Application 61020544 · Jan 11, 2008
Related Publication 20240173154A1 · May 30, 2024
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