Clinical Research Directory

Inclusion Criteria: 1. Patients aged 18 and above; 2. Patients with primary coronary artery calcification (coronary artery stenosis ≥50%) who are scheduled for stent implantation and deemed suitable for pretreatment with intracoronary shockwave therapy system and balloon dilation by the investigator before stent implantation; 3. Patients who can understand the purpose of the trial, voluntarily participate, and sign the informed consent form. Exclusion Criteria: 1. Patients with other diseases (severe congestive heart failure and severe valvular disease, malignant tumors, organ transplant recipients or candidates) or a history of abuse (alcohol, cocaine, heroin, etc.); 2. Patients who are pregnant or breastfeeding; 3. Patients who are allergic to contrast media and cannot tolerate medications such as aspirin, clopidogrel, ticagrelor, and heparin; 4. Researchers determined patients who could not tolerate the use of disposable intracoronary shockwave catheter through the lesion by angiography; 5. Patients who were deemed unsuitable for participation in the study by researchers due to other reasons.