In order to decrease the vas restenosis and to improve the biological compatibility, drug-elute-stents have been applied at clinic. In this research, our intention was to alter the surface characterization of 316L stainless steel (316LSS).

• 本论文的研究目的是在316L不锈钢(316LSS)表面制备具有良好机械性能和生物相容性的聚氨酯(PU)涂层，降低凝血率，为药物洗脱支架的制备进行基础研究。