Aortic aneurysm (aneurysm of the great vessels) refers to degenerative changes in the arterial wall due to various reasons, causing the whole layer of the artery to become thinned and become aneurysm-like dilated lesions. The incidence rate is about 5 to 10 cases per million population per year, and the age of onset is over 40 years old in most cases. Large vessel aneurysm is also known as the human body “time bomb”, a great threat to human life and health, the condition is exceptionally dangerous, large vessel aneurysm is often due to rupture of the aneurysm hemorrhage, resulting in the patient can not be rescued, sudden death. The survival rate of aortic coarctation aneurysm is only 40% in 24 hours, 25% in 1 week, and 10% in 3 months. Once diagnosed, early treatment should be pursued. Endoluminal isolation of aneurysm, i.e., under X-ray fluoroscopy, an artificial blood vessel with a titanium memory alloy stent pre-positioned in the catheter and matched with the diseased segment of aorta is introduced via the femoral artery and released into the diseased aorta to isolate the intima-media rupture of the coarctation of the aorta and aneurysm-like dilatation, so as to achieve the goal of treating and preventing the rupture of the aneurysm. Compared with the traditional open heart surgery, the most prominent feature of endoluminal aortic isolation is minimally invasive, which can be completed by making a small incision of 3cm in the root of the thigh, with fast postoperative recovery, low complication rate and low mortality rate, and it enables many patients who are unable to tolerate the traditional surgery due to their advanced age and multiple coexisting diseases to gain the opportunity to be treated.