Evaluate Safety and Efficacy of Alveo HP Balloon Dilatation Catheter for Balloon Dilatation of Coronary Artery Stenosis

Inclusion Criteria: 1. Age ≥ 18 years old, gender is not limited; 2. Patients with symptomatic ischemic heart disease who are suitable for percutaneous coronary intervention (PCI); 3. Patients with target lesion diameter stenosis ≥ 70% (visually) or chronic total occlusion (CTO) who needed balloon dilatation catheter pre-dilatation; 4. Patients or their guardians who can understand the purpose of the trial, voluntarily participate and sign the written informed consent, and can accept follow-up; Exclusion Criteria: 1. Patients with clinical symptoms consistent with ST-segment elevation myocardial infarction or/and ECG changes within 12 hours prior to the procedure; 2. Patients who are known to be intolerant to antiplatelet drugs or allergic to contrast media; 3. Patients with in-stent restenosis; 4. Patients with unprotected left main coronary artery disease; 5. Patients who plan to treat 3 or more lesions at the same time; 6. Patients with severe calcified lesions; 7. Patients in whom the guidewire cannot pass through the lesion; 8. Women who are pregnant or lactating; 9. Patients who are participating in the clinical trial of other drugs or medical devices; 10. Other patients considered by the investigator to be unsuitable for this trial.