Aneurysm devices with additional anchoring mechanisms and associated systems and methods
First Claim
1. An aneurysm device endovascularly deliverable to a site proximate a parent artery with bifurcating branches, the aneurysm device comprising:
- a closure structure comprising a central occlusion element comprising a distal-facing aspect configured to at least partially block an opening to the aneurysm, a lodging element, and a proximal-facing aspect configured to arch over lumina of the bifurcating branches; and
a supplemental stabilizer connected to the closure structure, the supplemental stabilizer configured to reside in the parent artery;
wherein the lodging element comprises struts which fold to form loop elements configured for extending into one of the bifurcating branches from the central occlusion element;
wherein each strut of the lodging element includes a hinge point offset from a centerline of the closure structure, the hinge point formed by a notch outwardly extended from a curve in the strut where the lodging element folds to form the loop elements;
wherein the notch has an apex that points generally toward an axis defined by the centerline of the closure structure.
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Accused Products
Abstract
The present technology relates to aneurysm devices with additional anchoring mechanisms, and associated systems and methods. In some embodiments, the aneurysm devices are endovascularly deliverable to a site proximate an aneurysm near a parent artery with bifurcating branches. The aneurysm devices can include a closure structure (102) comprising a distal-facing aspect configured to at least partially occlude the aneurysm and a proximal-facing aspect configured to arch over lumina of the bifurcating branches. The devices further include a supplemental stabilizer (103) connected to the closure structure. The supplemental stabilizer is configured to reside in the parent artery. The closure structure includes a hinge point (175) where the closure structure folds to form a loop element configured for anchoring within at least one of the bifurcating branches.
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Citations
20 Claims
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1. An aneurysm device endovascularly deliverable to a site proximate a parent artery with bifurcating branches, the aneurysm device comprising:
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a closure structure comprising a central occlusion element comprising a distal-facing aspect configured to at least partially block an opening to the aneurysm, a lodging element, and a proximal-facing aspect configured to arch over lumina of the bifurcating branches; and a supplemental stabilizer connected to the closure structure, the supplemental stabilizer configured to reside in the parent artery; wherein the lodging element comprises struts which fold to form loop elements configured for extending into one of the bifurcating branches from the central occlusion element; wherein each strut of the lodging element includes a hinge point offset from a centerline of the closure structure, the hinge point formed by a notch outwardly extended from a curve in the strut where the lodging element folds to form the loop elements; wherein the notch has an apex that points generally toward an axis defined by the centerline of the closure structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for treating an aneurysm at a site proximate a parent artery with bifurcating branches, the system comprising:
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a distal framework portion comprising a distal-facing aspect configured to enclose the aneurysm and lodging elements configured to extend in to the bifurcating branches in opposing directions from the distal-facing aspect, the lodging elements having a plurality of struts; and a proximal support framework connected to the distal framework portion, the support framework configured to reside in the parent artery and biased to press outward against a luminal wall thereof; wherein each strut of the lodging elements includes a hinge point offset from a centerline of the distal framework portion where the lodging elements fold to form loop elements configured for anchoring within at least one of the bifurcating branches; wherein the hinge point is formed by a notch outwardly extended from a curve in the strut; and wherein the notch has an apex that points generally toward an axis defined by the centerline of the distal framework portion. - View Dependent Claims (10, 11, 12, 13)
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14. A method of treating an aneurysm located at a site proximate to a parent artery that bifurcates into downstream branches, the method comprising:
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expanding an axially-compressed framework comprising a distal portion and a proximal portion at a site proximate to the aneurysm, wherein the distal portion comprises a plurality of struts having bend points offset from a centerline of the distal portion; and arching the distal portion of the framework unobtrusively over lumina of the downstream branches, wherein the struts comprise loops bent at the bend points, the loops configured to lodge in the downstream branches; wherein the bend points are formed by notches outwardly extending from curves in the struts of the distal portion; wherein the notches have apices that point generally toward an axis defined by the centerline of the distal portion. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification