Endoluminal prosthesis with steerable branch

Patent metadata

Field	Value
Publication number	US-10779930-B2
Application number	US-201715603575-A
Country	US
Kind code	B2
Filing date	May 24, 2017
Priority date	Sep 27, 2011
Publication date	Sep 22, 2020
Grant date	Sep 22, 2020

Abstract

An endoluminal prosthesis may include a tubular main graft body including a sidewall and proximal and distal ends. A first stent may be positioned near the proximal end of the main graft body. A second stent may be positioned adjacent to and distal of the first stent. An opening in the sidewall may be positioned longitudinally between a peak of the first stent and a valley of the second stent. A tubular branch may be disposed in the opening. The branch may include first and second end openings. The branch may be flexibly orientable between a retrograde configuration in which the first end opening is oriented toward the distal end and the second end opening is oriented toward the proximal end and an antegrade configuration in which the first end opening is oriented toward the proximal end and the second end opening is oriented toward the distal end.

First claim

We claim:

1. An endoluminal prosthesis comprising:
a main graft body of graft material, the main graft body comprising:
a sidewall,
a proximal end,
a distal end, and
a lumen between the proximal end and the distal end;

a first stent positioned near the proximal end of the main graft body, a second stent positioned adjacent to and distal of the first stent, and a third stent distal of the second stent, each of the first stent and the second stent comprising a peak and a valley and defining an area of graft material between the peak of the first stent and the valley of the second stent;
a slit in the sidewall positioned longitudinally between the peak of the first stent and the valley of the second stent and extending at least partially circumferentially around the main graft body, wherein the slit has a height that is parallel to a longitudinal axis of the main graft body and a width that is perpendicular to the longitudinal axis of the main graft body, wherein the width is greater than the height; and
a tubular branch attached to the main graft body, the tubular branch comprising a first end opening and a second end opening, the tubular branch extending from the slit and attached to the main graft body at the slit at a point of attachment about a circumference of the tubular branch, the tubular branch being flexibly orientable between a retrograde configuration and an antegrade configuration, wherein, in the retrograde configuration, the first end opening is oriented toward the distal end of the main graft body and the second end opening is oriented toward the proximal end of the main graft body, and, in the antegrade configuration, the first end opening is oriented toward the proximal end of the main graft body and the second end opening is oriented toward the distal end of the main graft body,
wherein where the point of attachment is between the first end opening and the second end opening of the tubular branch, and
wherein the tubular branch has an elliptical shape at the point of attachment.

2. The prosthesis of claim 1 , wherein the width of the slit comprises a length of between about ⅖ of a circumference of the tubular branch and about ½ of the circumference of the tubular branch.

3. The prosthesis of claim 1 , further comprising a fourth stent positioned near the proximal end of the main graft body, the peak of the first stent comprises a series of peaks, the valley of the first stent comprises a series of valleys, the fourth stent comprises a greater number of peaks and valleys than the first stent, the fourth stent is positioned proximal of the first stent, and the first stent and the fourth stent are in a nested relationship with one another.

4. The prosthesis of claim 1 , wherein the tubular branch further comprises a biocompatible graft material and a support structure attached to the biocompatible graft material of the tubular branch, and the support structure of the tubular branch comprises at least one of a Z-stent, a helical stent, or an annular ring.

5. The prosthesis of claim 1 , wherein the tubular branch is spaced from the proximal end of the prosthesis by a distance of between about 5 mm and about 30 mm.

6. The prosthesis of claim 1 , where a first portion of the branch extends from the point of attachment and into the lumen of the main graft body and where a second portion of the tubular branch extends from the point of attachment externally to the main graft body.

7. The prosthesis of claim 1 , wherein the tubular branch is positioned longitudinally at least partially between the peak of the first stent and the valley of the second stent and circumferentially between adjacent struts of the first stent.

8. An endoluminal prosthesis comprising:
a main graft body of graft material, the main graft body comprising:
a sidewall,
a proximal end,
a distal end, and
a lumen between the proximal end and the distal end;

a first stent positioned near the proximal end of the main graft body, a second stent positioned adjacent to and distal of the first stent, and a third stent distal of the second stent, each of the first stent and the second stent comprising a peak and a valley and defining an area of graft material between the peak of the first stent and the valley of the second stent;
a slit in the sidewall positioned longitudinally between the peak of the first stent and the valley of the second stent and extending at least partially circumferentially around the main graft body, wherein the slit has a height that is parallel to a longitudinal axis of the main graft body and a width that is perpendicular to the longitudinal axis of the main graft body, wherein the width is greater than the height; and
a tubular branch attached to the main graft body, the tubular branch comprising a first end opening and a second end opening, the tubular branch extending from the slit and attached to the main graft body at the slit at a point of attachment about a circumference of the tubular branch, the tubular branch being flexibly orientable between a retrograde configuration and an antegrade configuration, wherein, in the retrograde configuration, the first end opening is oriented toward the distal end of the main graft body and the second end opening is oriented toward the proximal end of the main graft body, and, in the antegrade configuration, the first end opening is oriented toward the proximal end of the main graft body and the second end opening is oriented toward the distal end of the main graft body,
wherein the proximal end of the main graft body comprises a slanted end, and a top longitudinal length of the main graft body is longer than a bottom longitudinal length of the main graft body to form the slanted end.

9. An endoluminal prosthesis comprising:
a main graft body of graft material, the main graft body comprising:
a sidewall,
a proximal end,
a distal end, and
a lumen between the proximal end and the distal end;

a first stent positioned near the proximal end of the main graft body, a second stent positioned adjacent to and distal of the first stent, and a third stent distal of the second stent, each of the first stent and the second stent comprising a peak and a valley and defining an area of graft material between the peak of the first stent and the valley of the second stent;
a slit in the sidewall positioned longitudinally between the peak of the first stent and the valley of the second stent and extending at least partially circumferentially around the main graft body, wherein the slit has a height that is parallel to a longitudinal axis of the main graft body and a width that is perpendicular to the longitudinal axis of the main graft body, wherein the width is greater than the height; and
a tubular branch attached to the main graft body, the tubular branch comprising a first end opening and a second end opening, the tubular branch extending from the slit and attached to the main graft body at the slit at a point of attachment about a circumference of the tubular branch, the tubular branch being flexibly orientable between a retrograde configuration and an antegrade configuration, wherein, in the retrograde configuration, the first end opening is oriented toward the distal end of the main graft body and the second end opening is oriented toward the proximal end of the main graft body, and, in the antegrade configuration, the first end opening is oriented toward the proximal end of the main graft body and the second end opening is oriented toward the distal end of the main graft body,
wherein the area disposed between the first stent and the second stent is free of any stenting within the area and the graft material disposed in the area is under greater tension than the graft material outside of

Assignees

• Cook Medical Technologies Llc
• Cleveland Clinic Found

Inventors

• Roeder Blayne A
• Greenberg Roy K
• Kratzberg Jarin
• Huser Matthew S

Classifications

• A61F2230/0006

  circular · CPC title

• A61F2002/061

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

• A61F2220/0066

  stapled · CPC title

• A61F2250/0029

  differing in bending or flexure capacity · CPC title

• A61F2250/0065

  telescopic · CPC title