Obliterative lower extremity arteriosclerosis and diabetic lower extremity arterial occlusive disease are one of the most common peripheral vascular diseases. For arterial lesions below the knee joint, the existing treatment methods are all "powerless": the clinical effect of systemic drug therapy on patients with severe limb ischemia is not good, and about one-third of the patients who receive conservative treatment cannot be treated within 6 months. No supra-ankle amputation was performed; conventional balloon angioplasty had limited efficacy.