A few days ago, Heilongjiang Provincial Hospital for a “lower extremity atherosclerosis occlusive disease” seventy-year-old man using a special microcatheter to open the occluded arteries, so that it avoided the pain of amputation. 75-year-old Wang, three years ago, walking left leg pain, has been according to the lumbar disc herniation treatment, the recent 4, 5 months right leg pain gradually aggravated, and the foot also feel cool and numb, hard to walk, came to the Heilongjiang Provincial Hospital Nangang Hospital vascular surgery department, the director of the Department of Liu Li received by the specialized test examination found that the patient’s feet cyanosis of the skin, pale, skin temperature drop, the disappearance of arterial pulsation, one by one diagnosed as “Lower limb atherosclerosis occlusive disease”, the examination results show that the superficial femoral artery of both lower limbs about 40 cm serious occlusion, to the right side of the heavier. Because of his advanced age and multiple diseases (coronary heart disease, hypertension, cerebral infarction), it was decided to use minimally invasive interventional revascularization. After thorough and careful preoperative preparation, a special microcatheter was used to open the occluded artery, and then a balloon matching the vessel was used to dilate the occluded artery, so that the occluded artery was completely opened. After more than three hours, the operation was successful. After the operation, Mr. Wang’s ischemic right leg returned to normal, the pain in his cold right foot disappeared, the skin temperature was restored, and his walking claudication disappeared. According to director Liu, lower extremity arterial occlusive disease if not timely treatment, the result is amputation, and lower extremity arteriosclerosis occlusive disease early symptoms are easily confused with lumbar disc prolapse disease, osteoporosis, calcium deficiency, rheumatism, and other diseases, it is very easy to cause misdiagnosis and misdiagnosis. She reminded that: patients with intermittent claudication (walking leg and foot pain) symptoms must consult the vascular surgery in a timely manner, a clear diagnosis, early detection and early treatment, to avoid amputation, reduce disability, in order to improve the quality of life.