Patent ID: 9101457
Filing Date: 2015-08-11
Classification: A61F

Abstract:
1. Apparatus comprising an endovascular stent-graft system, which comprises: a fenestrated stent-graft, which includes first and second end portions and a central portion disposed longitudinally therebetween, and which comprises a fenestrated support structure and a fenestrated covering element, which is securely attached to and covers at least a portion of the fenestrated support structure, wherein the fenestrated support structure and the fenestrated covering element are shaped so as to together define first and second lateral apertures in the central portion, which apertures face in generally radially opposing directions, when the fenestrated stent-graft is in a radially-expanded state thereof; and a crossing stent-graft, which includes first and second end portions and a central portion disposed longitudinally therebetween, and which comprises a crossing support structure and one or more crossing covering elements, which are securely attached to and at least partially cover the first and the second end portions, such that the central portion is at least partially uncovered when the crossing stent-graft is in a radially-expanded state thereof, wherein the fenestrated and the crossing stent-grafts are sized and shaped such that, when the crossing stent-graft is disposed through the first and the second apertures such that the central portion of the crossing stent-graft is within the central portion of the fenestrated stent-graft, the first and the second end portions of the crossing stent-graft (a) pass through the first and the second apertures, respectively, and (b) when the fenestrated and the crossing stent-grafts are in their radially-expanded states, form blood-impervious seals with the first and the second apertures, respectively, such that interior spaces defined by all of the following are in fluid communication with one another: the first and the second end portions and the central portion of the fenestrated stent-graft, and the first and the second end portions and the central portion of the crossing stent-graft, and wherein the crossing stent-graft, when in its radially-expanded state, has an hour-glass shape, and the central portion of the crossing stent-graft is shaped so as to define a stricture in the hour-glass shape.