In this article,the pretreatment of stent,the selection of drug-loaded materials,various stent coating procedures and mechanisms of controlled drug release from DES are summ.

• 包括支架的预处理、载药材料的选择、载药层的制备工艺以及载药层药物的释放机制进行了回顾与综合评述,并指出了药物洗脱支架载药层材料及其制备技术的发展方向。