Evaluation of the Clinical Outcomes of the Embolic Protection System in Preventing Distal Embolism During Femoropopliteal Debulking Procedures

Inclusion Criteria

• •1. Age \> 18 years
• •2. Rutherford classification 2-5
• •3. Patients with chronic femoropopliteal obstruction or thromboembolism who require debulking prior to other endovascular treatments.
• •4. Patients who understand the purpose of this study, participate in the study voluntarily, sign the informed consent and are willing to receive follow-up visits
• •5. The guidewire needs to pass through the lesion
• •6. Life expectancy \>24 months
• •7. Moderate to severe calcified lesions confirmed by imaging
• •8. For patients who receive intervention in both lower extremities, they may be enrolled in order of time of endovascular therapy
• •9. For combined aortoiliac artery lesions, recanalization of blood flow through endoluminal reconstruction of the vessel without more than 50% residual stenosis.