Support structures for prostheses with branching portions

Patent metadata

Field	Value
Publication number	US-9931231-B2
Application number	US-201514977014-A
Country	US
Kind code	B2
Filing date	Dec 21, 2015
Priority date	Dec 29, 2014
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

The present embodiments provide an endoluminal prosthesis, comprising a prosthetic trunk and a prosthetic branch, each comprising proximal and distal ends and a lumen extending therebetween. The proximal end of the prosthetic branch is secured around an aperture formed in a side surface of the prosthetic trunk. A support structure is coupled to the prosthetic branch. In certain embodiments, a proximal end of the support structure comprises a first width, and a distal end of the support structure comprises a second width, wherein the first width is less than the second width.

First claim

We claim:

1. An endoluminal prosthesis, comprising:
a prosthetic trunk comprising proximal and distal ends and a lumen extending therebetween;
a prosthetic branch comprising proximal and distal ends and a lumen extending therebetween, wherein the proximal end of the prosthetic branch is secured around an aperture formed in a side surface of the prosthetic trunk; and
a support structure coupled to the prosthetic branch,
wherein a proximal end of the support structure comprises a first width, and a distal end of the support structure comprises a second width, wherein the first width is less than the second width,
wherein the support structure comprises undulations that are transverse to a longitudinal axis of the prosthetic branch and the amplitude of the undulations increases in a direction from the proximal end towards the distal end of the prosthetic branch.

2. The endoluminal prosthesis of claim 1 , wherein the support structure extends less than 360 degrees circumferentially in a deployed state.

3. The endoluminal prosthesis of claim 2 , wherein the support structure comprises a deployed state having a concave shape relative to the prosthetic trunk.

4. The endoluminal prosthesis of claim 1 , wherein the support structure comprises boundaries forming a pattern that corresponds to a shape of the aperture in the prosthetic trunk.

5. The endoluminal prosthesis of claim 1 , wherein the aperture formed in the prosthetic trunk comprises an outer perimeter, wherein in an expanded state the support structure is positioned above the aperture in a manner radially outside of the aperture and within axial boundaries formed by the outer perimeter of the aperture.

6. The endoluminal prosthesis of claim 1 , wherein less than 10 percent of material of the support structure is disposed outside of a circumferential boundary formed by the outer perimeter of the aperture of the prosthetic trunk.

7. The endoluminal prosthesis of claim 1 , further comprising a coil coupled to the prosthetic branch and disposed distally of the support structure.

8. The endoluminal prosthesis of claim 1 , further comprising a Z-stent coupled to the prosthetic branch and disposed distally of the support structure.

9. The endoluminal prosthesis of claim 1 , wherein the support structure lacks an attachment to the prosthetic trunk.

10. An endoluminal prosthesis, comprising:
a prosthetic trunk comprising proximal and distal ends and a lumen extending therebetween;
a prosthetic branch comprising proximal and distal ends and a lumen extending therebetween, wherein the proximal end of the prosthetic branch is secured around an aperture formed in a side surface of the prosthetic trunk; and
a support structure coupled to the prosthetic branch,
wherein the support structure extends less than 360 degrees circumferentially in a deployed state,
wherein the support structure comprises undulations that are transverse to a longitudinal axis of the prosthetic branch and the amplitude of the undulations increases in a direction from the proximal end towards the distal end of the prosthetic branch.

11. The endoluminal prosthesis of claim 10 , wherein a proximal end of the support structure comprises a first width, and a distal end of the support structure comprises a second width, wherein the first width is less than the second width.

12. The endoluminal prosthesis of claim 10 , wherein the support structure comprises a deployed state having a concave shape relative to the prosthetic trunk.

13. The endoluminal prosthesis of claim 10 , wherein the support structure comprises boundaries forming a pattern that corresponds to a shape of the aperture in the prosthetic trunk.

14. The endoluminal prosthesis of claim 10 , wherein the aperture formed in the prosthetic trunk comprises an outer perimeter, wherein in an expanded state the support structure is positioned above the aperture in a manner radially outside of the aperture and within axial boundaries formed by the outer perimeter of the aperture.

15. The endoluminal prosthesis of claim 10 , further comprising a coil coupled to the prosthetic branch and disposed distally of the support structure.

16. The endoluminal prosthesis of claim 10 , further comprising a z-stent coupled to the prosthetic branch and disposed distally of the support structure.

17. The endoluminal prosthesis of claim 10 , wherein the support structure lacks an attachment to the prosthetic trunk.

Assignees

• Cook Medical Technologies Llc

Inventors

• Ondersma Joel
• Macatangay Edwin E

Classifications

• A61F2250/0039

  differing in diameter · CPC title

• A61F2002/061

  provided with means for allowing access to secondary lumens · CPC title

• A61F2/86

  Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure · CPC title

• A61F2/07 Primary

  Stent-grafts · CPC title

• A61F2/856 Primary

  Single tubular stent with a side portal passage · CPC title