Stent graft with fenestration lock and methods of use
Inventors
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-12127931-B2
Publication Date
2024-10-29
Expiration Date
Abstract
A stent graft includes a luminal graft component defining at least one fenestration. At least one ligature traverses the fenestration and at least partially defines an opening within the fenestration that secures a branch prosthesis. The stent graft is implanted in a patient to thereby treat an arterial aneurysm, such as an aortic aneurysm in a region of the aorta that includes at least one arterial branch, including juxtarenal and short-neck aortic aneurysms.
Core Innovation
The invention provides a method for treating an arterial aneurysm by delivering a stent graft through an artery to an aneurysm that spans a region of the artery including at least one arterial branch. The stent graft includes a luminal graft component having a proximal open end, a distal open end, and a main lumen. The luminal graft component defines at least one fenestration, and the fenestration can be traversed by at least one ligature.
At least one ligature traverses the at least one fenestration, and the at least one ligature, alone or in combination with the luminal graft component, constitutes a fenestration lock at the at least one fenestration. A branch prosthesis can be secured by the fenestration lock, linking the fenestration to an associated arterial branch during treatment. The method further includes at least one fenestration ring encompassing the at least one fenestration and fixed to the luminal graft component.
The at least one fenestration ring defines a variable fenestration ring diameter and can expand upon insertion of a branch prosthesis through the at least one fenestration ring during implantation of the branch prosthesis. The method includes substantially aligning the fenestration with the arterial branch at the aneurysm site and delivering the branch prosthesis through the proximal open end or the distal open end of the luminal graft component and through the fenestration lock to the associated arterial branch to treat the arterial aneurysm.
Claims Coverage
The document provides one independent claim. The independent claim is directed to a method for treating an arterial aneurysm using a fenestrated stent graft with a fenestration lock that secures a branch prosthesis, with alignment of the fenestration to an arterial branch and delivery of the branch prosthesis through the fenestration lock; the claim also requires a fenestration ring with a variable fenestration ring diameter that expands upon insertion of the branch prosthesis.
Fenestration lock using ligature traversing a fenestration
A method in which the stent graft has at least one luminal fenestration, and at least one ligature traverses the at least one fenestration such that the at least one ligature, alone or in combination with the luminal graft component, constitutes a fenestration lock at the at least one fenestration whereby a branch prosthesis can be secured by the fenestration lock.
Variable fenestration ring diameter for insertion of branch prosthesis
The stent graft further includes at least one fenestration ring encompassing the at least one fenestration and fixed to the luminal graft component, the at least one fenestration ring defining a variable fenestration ring diameter, wherein the fenestration ring diameter can expand upon insertion of a branch prosthesis through the at least one fenestration ring during implantation of the branch prosthesis.
Substantially aligning fenestration with arterial branch
The method includes substantially aligning the fenestration with the arterial branch at the aneurysm site of the patient, wherein the aneurysm spans a region of the artery that includes at least one arterial branch.
Delivering branch prosthesis through fenestration lock to treat aneurysm
The method delivers a branch prosthesis through the proximal open end or the distal open end of the luminal graft component and through the fenestration lock to the associated arterial branch, thereby treating the arterial aneurysm.
Overall, the independent claim centers on securing a branch prosthesis at a fenestration by a fenestration lock formed by at least one ligature traversing the fenestration, supported by a fenestration ring with a variable fenestration ring diameter that expands upon branch prosthesis insertion, together with substantially aligning the fenestration to the arterial branch and delivering the branch prosthesis through the fenestration lock to treat the aneurysm.
Stated Advantages
Improve sealing and reduce endoleaks.
Documented Applications
Fenestrated stent graft repair of arterial aneurysm, including juxtarenal/short-neck abdominal aortic aneurysms, with branch prosthesis secured via fenestration lock.
Treatment of aneurysms spanning regions that include arterial branches such as celiac artery, superior mesenteric artery, and left and right renal arteries.
Interested in licensing this patent?