Drug coating stent and drug elating stent have the ability to reduce the in-stent restenosis, and the biodegradable stent attract more and more attentions.

• 药物涂层支架、药物洗脱支架的研究降低了支架置入后血管内再狭窄率，具备优良特性的生物可降解支架也日益受到重视。