Stent graft with branch leg
First Claim
1. A system for bypassing multiple aneurysms comprising a first prosthesis, at least two second prostheses communicating with the first prosthesis, and at least two third prostheses communicating with respective second prostheses;
- each of the second prostheses being configured to bypass a first aneurysm and to extend into an artery downstream of the first aneurysm, and a first one of the third prostheses being matingly engaged with a first one of the second prostheses and being configured to provide a fluid flow path in a second artery disposed downstream from the first artery and to bypass a second aneurysm, the first one of the third prostheses being configured to provide a fluid flow path through a first common iliac artery and the first one of the third prostheses further including a branch leg configured to create a first fluid flow path from the first one of the third prostheses into a first external iliac artery.
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Accused Products
Abstract
The present invention is directed to a system, apparatus, and method for treating, repairing, and/or replacing an aneurysm, preferably an aortic aneurysm, and most preferably, an abdominal aortic aneurysm. The systems, devices, and methods of the present invention include a first prosthesis or stent gasket, and at least one second prosthesis for bypassing the aneurysm. In preferred embodiments, the second prosthesis includes a branch leg that may be disposed and anchored in an either a cross artery or a downstream artery to facilitate fluid flow. In other preferred embodiments, at least one third prosthesis is provided for establishing a fluid flow channel through a second diseased artery to bypass an aneurysm disposed therein. In accordance with the invention, the first artery may be the abdominal aorta and the second artery may be an iliac artery.
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Citations
26 Claims
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1. A system for bypassing multiple aneurysms comprising a first prosthesis, at least two second prostheses communicating with the first prosthesis, and at least two third prostheses communicating with respective second prostheses;
- each of the second prostheses being configured to bypass a first aneurysm and to extend into an artery downstream of the first aneurysm, and a first one of the third prostheses being matingly engaged with a first one of the second prostheses and being configured to provide a fluid flow path in a second artery disposed downstream from the first artery and to bypass a second aneurysm, the first one of the third prostheses being configured to provide a fluid flow path through a first common iliac artery and the first one of the third prostheses further including a branch leg configured to create a first fluid flow path from the first one of the third prostheses into a first external iliac artery.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25)
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12. A prosthesis for splitting a fluid flow path comprising:
a stent defining a matrix having an upstream portion, a downstream portion and an intermediate portion disposed between the upstream and downstream portion, the intermediate portion including an aperture and a plurality of branched stent struts extending from the intermediate portion in a direction away from a plane including a longitudinal axis of said stent, and a graft material communicating with the matrix.
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23. A method for bypassing an aneurysm downstream of a junction between a first artery and a second artery comprising positioning a first prosthesis in a first section of the first artery;
- engaging at least one second prosthesis with the first prosthesis, said second prosthesis forming a fluid flow path that bypasses the aneurysm; and
positioning a branch leg of the second prosthesis in the second artery, the branch leg forming a fluid flow path from the second prosthesis to the second artery.
- engaging at least one second prosthesis with the first prosthesis, said second prosthesis forming a fluid flow path that bypasses the aneurysm; and
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26. A method for bypassing aneurysms disposed in an arterial system comprising:
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positioning a first prosthesis in a first section of a first artery;
engaging at least one second prosthesis with the first prosthesis, said second prosthesis forming a fluid flow path that bypasses an aneurysm in the first artery;
engaging a third prosthesis with a downstream end of the at least one second prosthesis;
positioning a branch leg of the third prosthesis in first branch of the second artery, the branch leg forming a fluid flow path from the third prosthesis to the first branch of the second artery that bypasses an aneurysm in the second artery; and
positioning the third prosthesis in a second branch of the second artery, the third prosthesis forming a fluid flow path that bypasses the aneurysm in the second artery.
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Specification