无镍不锈钢冠脉支架力学行为的有限元模拟

材料研究学报

2012, Vol. 26

Issue (2): 125-131

研究论文

本期目录 | 过刊浏览

无镍不锈钢冠脉支架力学行为的有限元模拟

毛志刚^1,2, 谭丽丽², 郑丰², 黄洁雯¹, 樊新民¹, 杨柯²

1.南京理工大学南京 210094
2.中国科学院金属研究所沈阳 110016

Finite Element Analysis on Mechanical Behaviors of Nickel-Free Stainless Steel Coronary Stent

MAO Zhigang，TAN Lili，ZHENG Feng，HUANG Jiewen，FAN Xinmin，YANG Ke

1.Nanjing University of Science and Technology, Nanjing, 210094
2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016

引用本文:

毛志刚谭丽丽郑丰黄洁雯樊新民杨柯. 无镍不锈钢冠脉支架力学行为的有限元模拟[J]. 材料研究学报, 2012, 26(2): 125-131.
, , , , , . Finite Element Analysis on Mechanical Behaviors of Nickel-Free Stainless Steel Coronary Stent[J]. Chin J Mater Res, 2012, 26(2): 125-131.

全文: PDF(896 KB)

摘要: 以无镍不锈钢为支架材料, 以冠脉支架结构为研究对象, 对其压缩和扩张过程中的力学行为和柔顺性能进行了模拟计算, 研究了支架压握并扩张后的轴向回弹率、径向回弹率以及不同端部网丝宽度支架的变形行为, 计算出支架的弯矩--挠度曲线及支架的柔软度。结果表明, 所研究的无镍不锈钢支架具有较小的轴向与径向回弹率,
在变形过程中表现出良好的弹性弯曲变形性能。

关键词 ：材料科学基础学科, 无镍不锈钢, 冠脉支架, 力学行为, 有限元模拟

Abstract：The mechanical behaviors during crimping and expansion as well as the flexibility of coronary stent made of nickel-free stainless steel were simulated in this paper. The longitudinal recoil, radial recoil and the deformation behavior in crimping and expansion for different stent mesh width were investigated. The moment-deflection curve and flexibility of the stent were calculated. The results show that the nickel-free stainless steel stent has smaller longitudinal and radial recoil, and excellent flexibility in elastic bending deformation process.

Key words： foundational discipline in materials science nickel-free stainless steel coronary stent mechanical behaviors finite element method

收稿日期: 2011-04-25

ZTFLH:

TG142

基金资助:

国家重点基础研究发展计划(973)2012CB619101资助项目。

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https://www.cjmr.org/CN/ 或 https://www.cjmr.org/CN/Y2012/V26/I2/125

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(王伟强, 王丽, 杨大智, 齐民, 血管支架有限元优化设计, 生物医学工程杂志, 25(2), 372(2008))

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