Systems and methods with stent and filling structure

1. A system, comprising:

a filling structure deployable at least partially in a common iliac artery and an external iliac artery;

wherein the filling structure has a first lumen and a second lumen, the second lumen extending from the first lumen in the filling structure and configured to be positioned toward an internal iliac artery; and

a scaffold positionable within the first lumen of the filling structure, the scaffold having a fenestration in a side of the scaffold that is configured to be positioned toward an internal iliac artery.

2. The system of claim 1 , further comprising:

a second scaffold configured to be positioned within the second lumen.

3. The system of claim 2 ,

wherein the second scaffold is configured to be inserted into the fenestration in the side of the scaffold.

4. The system of claim 1 ,

wherein a first portion of the filling structure is configured to be located in at least a portion of the common iliac artery upon deployment of the filling structure;

wherein a second portion of the filling structure is configured to be located in at least a portion of the external iliac artery upon deployment of the filling structure; and

wherein a third portion of the filling structure is configured to be located in at least a portion of the internal iliac artery upon deployment of the filling structure.

5. The system of claim 1 ,

wherein the first lumen of the filling structure extends from a first end of the filling structure that is positionable to face an aorta to a second end of the filling structure that is positionable in the external iliac artery.

6. The system of claim 5 ,

wherein the second lumen of the filling structure extends from a side of the first lumen of the filling structure to a third end of the filling structure that is configured to be positioned in the internal iliac artery.

7. The system of claim 1 ,

wherein the fillable structure is configured to be inflated with a filling medium.

8. The system of claim 3 ,

wherein the fenestration in the side of the scaffold is larger than an expanded diameter of the second scaffold.

9. The system of claim 8 ,

wherein the filling structure is expandable to provide a seal around the second scaffold when the second scaffold is located within the fenestration in the side of the scaffold and the filling structure is inflated with a filling medium.

10. The system of claim 1 ,

wherein the scaffold is attached to an inner surface of the first lumen.

11. The system of claim 1 ,

wherein a length of a second scaffold that is configured to be inserted into the fenestration in the side of the scaffold has a length that is greater than a length of the second lumen.

12. The system of claim 1 , further comprising:

a radiopaque marker located next to the fenestration of the scaffold.

13. The system of claim 1 , further comprising:

a wire configured to extend through the fenestration in the side of the scaffold to the internal iliac artery.

14. The system of claim 1 , further comprising:

a balloon that is configured to be inflated within the second lumen of the filling structure and that is removable from the second lumen.

15. A method, comprising:

deploying a filling structure at least partially in a common iliac artery and an external iliac artery;

wherein the filling structure has a first lumen and a second lumen therein, the second lumen extending from the first lumen in the filling structure;

positioning the second lumen toward an internal iliac artery; and

positioning a scaffold within the first lumen of the filling structure such that a fenestration in a side of the scaffold is positioned toward an internal iliac artery

wherein the fenestration is configured to receive a second scaffold.

16. The method of claim 15 , further comprising:

inserting a second scaffold into the fenestration in the side of the scaffold such that at least a portion of the second scaffold extends into the internal iliac artery.

17. The method of claim 15 ,

wherein, upon deployment of the filling structure, a first portion of the filling structure is located in at least a portion of the common iliac artery, a second portion of the filling structure is located in at least a portion of the external iliac artery, and a third portion of the filling structure is located in at least a portion of the internal iliac artery.

18. The method of claim 15 , further comprising:

positioning a wire through the fenestration in the side of the scaffold and into the internal iliac artery.

19. The method of claim 18 ,

wherein the positioning of the wire is performed by a catheter passing over an aortic bifurcation.

20. A system, comprising:

a filling structure that is bifurcated;

wherein the filling structure has a first lumen that extends from a first end to a second end of the filling structure; and

wherein the filling structure has a second lumen that extends from a side of the first lumen to a third end of the filling structure wherein a first scaffold positioned in the first lumen of the filling structure and having a fenestration in a side of the first scaffold that is positioned toward the second lumen of the filling structure.

21. The system of claim 20 , further comprising:

a first scaffold positioned in the first lumen of the filling structure and having a fenestration in a side of the first scaffold that is positioned toward the second lumen of the filling structure; and

a second scaffold positioned in the second lumen of the filling structure and extending through the fenestration in the side of the first scaffold.

22. The system of claim 20 ,

wherein a first portion of the filling structure is configured to be located in at least a portion of a common iliac artery upon deployment of the filling structure;

wherein a second portion of the filling structure is configured to be located in at least a portion of an external iliac artery upon deployment of the filling structure; and

wherein a third portion of the filling structure is configured to be located in at least a portion of an internal iliac artery upon deployment of the filling structure.

23. The system of claim 1 , wherein the filling structure comprises a single continuous volume from a first end to a second end of the filling structure.

24. The system of claim 1 , wherein the filling structure comprises a volume, and the first and second lumen extend through said volume.