Preparation method of medical balloon, medical balloon and balloon catheter

The invention provides a preparation method of a medical balloon, the medical balloon and a balloon catheter. The preparation method comprises the following steps: providing a balloon body and a flexible mold loaded with a first raw material; the balloon body is filled; the flexible mold is bent and attached to at least part of the outer surface of the filled balloon body, and the first raw material is attached to part of the outer surface of the balloon body; curing the first raw material to form a microneedle, and adhering the microneedle to a part of the outer surface of the balloon body; the flexible mold and the microneedle are separated; a drug coating is disposed at least on the outer surface of the microneedle. By means of the preparation method, the medical balloon can be simply and rapidly prepared, the prepared medical balloon can be used for percutaneous intracavitary angioplasty, the utilization efficiency of drugs is improved, and then the treatment effect is improved. 本发明提供了一种医用球囊的制备方法、医用球囊及球囊导