The patient was lying flat, and a short 6F sheath was placed after a successful paralleling puncture of the left femoral artery. Hand-pushed contrast angiography revealed a 6.4 cm long multiple stenosis in the middle segment of the superficial femoral artery, with a stenosis of about 50%-75%, and a complete occlusion of the distal femoral artery and about 6 cm of the proximal N artery; it was decided to perform stenting of the left lower extremity artery: 30 mg of heparin was infused intravenously in a small pot, a guidewire and a multifunctional catheter were used with the occluded segment, and one MARIS 6mm-80mm and one MARIS 7mm-80mm stent were implanted in the occluded and stenotic segments, respectively. One MARIS 6mm-80mm stent and one 7mm-80mm stent were implanted in the occluded and stented segments, and the stents were expanded with SAILOR PLUS 5mm-80mm 8atm-1second respectively. The operation went smoothly, and the patient had no complaints of discomfort during the operation. Postoperative management: After the ACT or APTT was nearly normal, the short sheath was removed.