Researches on drug-eluting stents are now focusing on three main aspects: the stent materials, the coating matrix material and the selection, adhesion and controlled release of the biological agents.

• 目前国内外支架开发过程中亟待解决的问题主要集中在三个方面:支架材料、架表面涂层基质材科和药物的筛选、附和缓释。