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支架内再狭窄多年来一直是制约冠心病介入治疗远期疗效的瓶颈,药物洗脱支架的出现为解决这一问题提供了有效手段,而药物洗脱支架制备的关键在于载药层的制备.针对载药层制备技术,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栽药层材料及其制备技术的发展方向.

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