Support structures for prostheses with branching portions

Patent metadata

Field	Value
Publication number	US-2016184115-A1
Application number	US-201514977014-A
Country	US
Kind code	A1
Filing date	Dec 21, 2015
Priority date	Dec 29, 2014
Publication date	Jun 30, 2016
Grant date	—

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.

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.

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.

18 . A method for supporting a prosthetic branch of an endoluminal prosthesis, comprising:
providing a prosthetic trunk and a prosthetic branch, each comprising proximal and distal ends and a lumen extending therebetween; securing the proximal end of the prosthetic branch around an aperture formed in a side surface of the prosthetic trunk; and coupling a support structure 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.

19 . The method of claim 18 , wherein the support structure extends less than 360 degrees circumferentially in a deployed state.

20 . The method of claim 18 , wherein the support structure comprises a deployed state having a concave shape relative to the prosthetic trunk.

Assignees

• Cook Medical Technologies Llc

Inventors

• Ondersma Joel
• Macatangay Edwin E

Classifications

• A61F2/856 Primary

  Single tubular stent with a side portal passage · 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

• A61F2250/0039

  differing in diameter · CPC title

• A61F2/07 Primary

  Stent-grafts · CPC title

• A61F2002/061

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