Abstract: An endovascular graft, which is configured to conform to the morphology of a vessel to be treated, includes a tubular ePTFE structure; an inflatable ePTFE structure disposed over at least a portion of the ePTFE tubular structure; and an injection port in fluid communication with the inflatable ePTFE structure for inflation of the inflatable ePTFE structure with an inflation medium. The inflatable ePTFE structure may be longitudinally disposed over the tubular ePTFE structure. The ePTFE structure may be a bifurcated structure having first and second bifurcated tubular structures, where the inflatable ePTFE structure is disposed over at least a portion of the first and second bifurcated tubular structures.

Abstract: The endovascular graft includes a tubular structure having a first end and a second end. The tubular structure has a wall which defines a lumen between the first and second ends. A fenestration is located between the first and second ends to extend through the wall of the tubular structure. A sealing ring is circumferentially disposed within or on, including without limitation secured to, the tubular structure. The sealing ring is adjacent to the fenestration. The sealing ring may be inflatable.

Abstract: The vascular graft is located within a lumen of a vessel. The vascular graft includes a tubular structure and an attachment ring connected thereto. A stent attachment structure is connected to the attachment ring. The stent attachment structure is connected to an inner surface of the vessel to secure the location of the vascular graft within the lumen. The vascular graft is made according to a method in which the end of the tubular structure is folded over the attachment ring. Alternatively, the vascular graft has circumferential slits near the end thereof. Strap structures extend through the slits and are folded for connection to the stent attachment structure. The vascular graft is made according to a method in which the strap structures are inserted through the slits and folded for connection to the stent attachment structure.

Abstract: Some embodiments relate in part to endovascular devices such as prostheses and methods of testing same prior to deployment. Some embodiments may be directed more specifically to inflatable grafts or stent grafts and methods of in vitro leak testing of such grafts prior to in vivo deployment.