摘要
镁合金因其具有良好的力学性能、可控降解性能、其本身及降解产物副作用小等特点使其成为血管内支架的最佳选用材料。镁及其合金作为血管内支架在体内降解速率太快,不能提供足够的支撑时间,造成结构性回缩,因此对它降解速度的研究就显得十分重要。本文综述了提高镁及其合金耐蚀性的方法、其体外降解速率测定及其作为血管内支架在生物体内腐蚀降解的研究。
Magnesium and its alloy are used for the most potential endovaseular stent material due to their excellent mechanical capabilities, adjustable corrosive properties, the little side effects of the materials and their degradation products. The in vivo degradation rate of the current magnesium and its alloy as endovascular stent is very quickly so that the artery is not supported long enough to prevent negative remodeling. This review detailed the approach to enhance the corrosion resistance, in vitro corrosion rate measurement of magnesium and its alloy, as well as the in vivo corrosion research when as the endovascular stents.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2011年第6期1246-1250,共5页
Journal of Biomedical Engineering
关键词
镁及其合金
血管内支架
降解控制
Magnesium and its alloy
Endovascular stent
Corrosion control
