Performances of Biodegradable Mg-Nd-Zn-Zr Magnesium Alloy for Cardiovascular Stent

被引：0
|
作者：
Zhang Xiaobo [1 ]
Mao Lin [2 ]
Yuan Guangyin [2 ]
Wang Zhangzhong [1 ,2 ]
机构：
[1] Nanjing Inst Technol, Nanjing 211167, Jiangsu, Peoples R China
[2] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy Net Forming, Shanghai 200240, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2013年 / 42卷 / 06期
关键词：
biodegradable magnesium alloy; cardiovascular stent; cell toxicity; corrosion property; radial expansion force; BIOCORROSION; AZ31;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Mg-3.13Nd-0.16Zn-0.41Zr (wt%, JDBM) alloy was chosen and the cell toxicity and corrosion property of the as-extruded JDBM were studied. Magnesium tube was prepared by hot extrusion processing and the microstructure of the tube was observed. The cardiovascular stent was prepared by laser cutting and electrochemical polishing processes. The surface roughness and radial expansion force were tested. The results show that JDBM magnesium alloy exhibits no cell toxicity of Endothelial cell, good corrosion resistance and corrosion mode. The radial expansion force of the prepared cardiovascular stents is over 4 times than that of the maximal vascular compression pressure of normal adult, which meets the requirement of the mechanical properties for cardiovascular stents.
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页码：1300 / 1305
页数：6
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