The method of one carrier drug drug-eluting balloon catheter

The present invention relates to a method for medicated drug-eluting balloon catheter, comprising: ① From first balloon swelling treatment, the swelling time was 0.5h-3h; ② vacuum spraying technique by therapeutic drugs, additives and spraying a mixture of solvents in the balloon surface after swelling, 10 to 30 minutes to dry naturally. Of the solvent mixture, therapeutic drugs, parts by weight of the additive ratio of 10-90: 0.5-30: 5-60. Step ① balloon for swelling solution used is methyl formate, ethyl acetate, ethyl formate, methyl acetate, propyl formate, methyl propionate, ethyl propionate, phenyl acetate, octyl acrylate and any one of methyl benzoate, or a mixture of two or more of them. The present invention is a drug-eluting balloon catheter coated pharmaceutical drug loading method enables uniform, solid, stable and fast drug release.