The Amplatzer™ self-centering septal occluder revolutionized minimally invasive closure of atrial septal defects (ASDs) in children in the late 1990’s, and has served the role well from that time on [1]. Since the 1990s, Nitinol shape memory alloys (SMAs) have enabled high performance and less invasive treatment of aortic aneurysms, biliary ducts and cerebrovascular aneurysms. All such devices have relied on the remarkable combination of shape memory, superelasticity, corrosion and fatigue durability found in well-processed Nitinol wires and tubes.