The price of domestic heart stents varies depending on the brand and regional tariff, and generally the cost of domestic heart stents in Shandong is about 7000-8000 RMB. The domestic heart stent brands include a series of stents such as LOPE, New Pulse, etc. At present, the domestic stents are in line with the international level in terms of technology and improvement of symptoms of coronary heart disease through stent implantation and prevention of restenosis in the stent, so patients can use domestic stents with confidence. The criteria for stent implantation are that the patient has clear coronary artery disease, coronary artery stenosis greater than 75% as shown by coronary angiography, and the patient has angina symptoms or clear ischemic changes in the electrocardiogram.