A Clinical Trial to Evaluate the Efficacy and Safety of a Spot Stent System Used in Femoropopliteal Arteries.

Exclusion Criteria

• •The plasma creatinine level is higher than 150 umol/L.
• •Thrombolysis or thrombectomy is required.
• •The patient had underwent lower-limb arterial surgery or thrombolysis on the target limb within 6 weeks.
• •Previously implanted stent in the target lesion.
• •The guide wire can not cross the target lesion.
• •Angiographic evidence of calcification severe enough that it renders the target lesion non-dilatable.
• •Patient has a known allergy to anticoagulant drugs, anti-platelet drugs or contrast medium that cannot be adequately pre-medicated.
• •Women who are pregnant or breast-feeding.
• •The subjects have participated in other drug property studies or device studies that have not yet completed the main end point.
• •Patient has life expectancy of less than 12 months.
• •Patient who planned to do above the ankle amputation before the operation.
• •Patient who had severe hemorrhage or coagulation disorder which judged by the investigator.
• •The investigator think the patient is not suitable for participation in the clinical trial.