Frame structures, stent grafts incorporating the same, and methods for extended aortic repair

A stent graft that is movable between a collapsed configuration and an expanded configuration, the stent graft comprising:

• an elongated body having a proximal end portion, a distal end portion, an intermediate portion extending between the proximal and distal end portions, and a lumen extending between the proximal and distal end portions, the proximal end portion including a frame structure and the intermediate and distal end portions including an expandable support member, each of the frame structure and the expandable support member having at least one surface thereof covered by a biocompatible graft material;
• wherein the proximal end portion includes an aperture that is in fluid communication with the lumen and defined by a portion of the frame structure, the frame structure including a deployable backstop configured to extend into a lumen of an aortic arch branch vessel when the stent graft is implanted in a subject;
• wherein the aperture is sized and dimensioned so that the lumen of the main body is in fluid communication with the lumen of each of the aortic arch branch vessels when the stent graft is implanted in a subject;
• wherein the aperture is sized and dimensioned so that the lumen of the main body is in fluid communication with the lumen of each of the aortic arch branch vessels when the stent graft is implanted in a subject.