A stent-graft is a medical device used to treat a variety of vascular conditions, such as abdominal aortic aneurysms (AAA) or thoracic aortic aneurysms. It consists of a metal stent covered with a fabric material, which is inserted into the affected blood vessel to provide support and seal off the damaged area. Stent-grafts are less invasive than traditional open surgery and are often preferred for their shorter recovery time and reduced risk of complications. Research in this area focuses on improving the design and functionality of stent-grafts, as well as studying their long-term effectiveness and safety in treating vascular diseases.