Vascular prosthesis for leak prevention during endovascular aneurysm repair
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An embodiment includes a process for treating an abdominal aortic aneurysm (AAA) endoleak with a shape memory polymer (SMP) foam device. First, a bifurcated stent graft is placed within the aneurysm while a micro guidewire is positioned within the aneurysm for future catheter access. Second, after placing the iliac graft extension, a catheter is introduced over wire to deliver embolic foams. Third, embolic foams expand and conform to the aneurysm wall. Fourth, embolic foams create a stable thrombus to prevent endoleak formation by isolating peripheral vessels from the aneurysm volume.
Maitland, Duncan J.; Landsman, Todd L.; Horn, John; Nash, London; Yeh, Chung (11/2). Vascular prosthesis for leak prevention during endovascular aneurysm repair. United States. Patent and Trademark Office; Texas A&M University. Libraries. Available electronically from