A Prospective, Multicenter, Observational Study on the Treatment of Chronic Common Femoral Artery Bifurcation Occlusion

Inclusion Criteria: 1. Patients with chronic atherosclerotic occlusion who are over 18 years old; 2. Patients with Rutherford clinical grading range in the range of 2-5; 3. The stenosis rate of the common femoral artery (including the bifurcation of the femoral artery) is \> 60% or occlusive, and it is proposed to undergo intraluminal treatment such as balloon dilation, stent implantation, plaque rotation and excision, or endometrial decortication treatment; 4. At least one healthy sub-knee outflow tract (or opened through reconstruction) communicates with the blood vessels of the foot; 5. Intravascular treatment: the guide wire successfully passed through the target lesion; 6. For patients with combined aorta iliac artery lesions, after completing the reconstruction of the main iliac artery, they can be enrolled according to the above requirements; except for the ipsilateral iliac artery, other non-target lesions of the remaining non-target blood vessels can be treated by the doctor at his own discretion; 7. For patients with both lower limbs that meet the admission conditions, both limbs can be enrolled separately in chronological order; 8. Written informed consent prior to the study procedure. Exclusion Criteria: 1. Patients who are unwilling or refuse to sign informed consent; 2. Known or suspected allergy or contraindications to aspirin, clopidogrel bisulfate, heparin or contrast agents; 3. Patients who have participated in clinical trials of other drugs or medical devices that interfere with this clinical trial in the past 3 onths; 4. pregnant and lactating women; 5. Life expectancy is less than 24 months; 6. Patients whose common femoral artery has received endometrial detachment, plaque rotation, stent implantation and restenosis in stents; 7. Patients with acute ischemia of grade III lower extremities who have lost the opportunity for vascular reconstruction; 8. Any major medical condition that the researchers believe may affect the subject's optimal participation in the study.