Stenting of the arteries in the lower extremities is a common treatment for severe stenosis or even occlusive lesions in the arteries of the lower extremities, and the decision to implant a stent is based on the stenosis of the vessel. Currently, there are three main types of arterial stents in common use: 1. Bare metal stents: these stents are widely used and are mainly divided into sculpted and braided types. The cost of bare metal stents is generally around 15,000-20,000 RMB. 2. stents with coating: the cost of these stents is relatively more expensive, generally around 20,000-25,000 RMB. 3. newer stents with heparin coating: the cost is more expensive, generally 30,000-35,000 RMB. The specific stent selection needs to be combined with the vascular lesion and the patient’s economic situation during the procedure to select the appropriate stent for arterial stent implantation.