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US 8,709,068 B2Granted
Multi-component bifurcated stent-graft systems
AssigneeEndospan Ltd.
InventorsAlon Shalev, Rafi Benary
Life of this patent
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Abstract
A multiple-component expandable endoluminal system for treating a lesion at a bifurcation including a self expandable tubular root member having a side-looking engagement aperture, a self expandable tubular trunk member comprising a substantially blood impervious polymeric liner secured therealong; both having a radially compressed state adapted for percutaneous intraluminal delivery and a radially expanded state adapted for endoluminal support.
Claims18
A stent graft system comprising:
- a first component, which comprises a tubular structure, which comprises a first support element and a first covering element attached to said first support element, two sides of said first component being positionable, respectively, in first and second branching arteries that branch from a main artery of a subject, wherein said first covering element is shaped so as to define an opening arranged to face said main artery;
- and
- a second component, which comprises a second support element and a second covering element attached to said second support element,
- wherein said second component comprises a proximal segment and a distal segment, said proximal segment anchorably disposed within said first component, such that said distal segment of said second component extends out of said first component through said opening,
- wherein a diameter of a distal section of said distal segment not disposed within said first component is greater than a diameter of said opening, and
- wherein said diameter of said distal section increases as said distal section exits from said opening.
3 more elements
A method comprising:
- implanting, respectively in first and second iliac arteries that branch from an abdominal aorta of a subject, two sides of a first component of a stent graft system, which first component includes a tubular structure that includes a first support element and a first covering element attached to said first support element, such that an opening defined by said first covering is aligned to face said abdominal aorta;
- and
- thereafter, implanting a second component of said system, which second component includes a second support element and a second covering attached to said second support element, by:
- transluminally advancing a catheter tube through one open end of exactly one of said two sides of said first component and out through the opening into the abdominal aorta, while said second component is radially compressed within said catheter tube, and
- withdrawing said catheter tube so that (a) at least a distal segment of said second component is freed from said catheter tube, extends out of said first component through said opening, and radially expands within said abdominal aorta, and (b) thereafter, at least a proximal segment of said second component is freed from said catheter tube and radially expands within said first component, thereby anchoring said at least a proximal segment of said second component to said first component, such that a distal section of said distal segment that is not disposed within said first component and radially expands within said abdominal aorta has a diameter that (a) is greater than a diameter of said opening, and (b) increases as said distal segment exits from said opening.
2 more elements
Dependencies are inferred from the claim text.