Treatment of Primary Coronary Artery Vascular Lesions With Biolimus Coated Coronary Balloon Dilation Catheter

Inclusion Criteria: * Age ≥ 18 years; * Primary coronary artery stenosis with a vessel diameter of 2.0 mm to 2.75 mm; * Patients with residual stenosis of ≤ 30 percent after pretreatment and ≤ type B dissection; Patients who voluntarily participate in and sign the informed consent form, and who are willing to undergo follow-up as required by the protocol. Exclusion Criteria: * Pregnant or lactating females; * Patients with cardiogenic shock; * Patients with severe congestive heart failure or severe heart failure with NYHA class IV; * Patients with severe valvular heart disease; * Patients with a life expectancy of less than 24 months or factors that make clinical follow-up difficult; * Patients who are considered unsuitable for inclusion by the investigator for other reasons. * Those who are known to be allergic to melcrolimus and contrast media.