西南交通大学学报 2007, 42(2) 229-233 DOI:     ISSN: 0258-2724 CN: 51-1277/U

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本文关键词相关文章
激光切割
筋宽
工艺参数
工艺试验
优化
血管支架
本文作者相关文章
张勇
强华
郝静
黄楠
杜全兴
PubMed
Article by ZHANG Yong
Article by QIANG Hua
Article by HAO Jing
Article by HUANG Nan
Article by DU Quanxing

血管支架筋宽误差分析及激光加工工艺优化

张勇1,2, 强华1, 郝静1, 黄楠1, 杜全兴2

1. 西南交通大学材料工程学院, 四川, 成都, 610031;
2. 西南交通大学机械工程学院, 四川, 成都, 610031

摘要

为解决血管支架激光切割中普遍存在筋宽不均匀的问题,通过激光切割工艺试验及对管材的运动分析,得出影响筋宽的主要因素包括系统误差造成的管材切割点切向速度变化和激光离焦量.根据研究结果,优化了激光切割参数.限制管材回转偏心在0.030mm以下,并设置激光离焦量为-0.05mm(设备显示值),筋宽变化幅度控制在0.010mm以内,满足设计要求.

关键词 激光切割   筋宽   工艺参数   工艺试验   优化   血管支架  

Width Error Analysis of Stent Strut and Optimization of Laser Cutting Procedure

ZHANG Yong1,2, QIANG Hua1, HAO Jing1, HUANG Nan1, DU Quanxing 2

1. School of Materials Science and Eng., Southwest Jiaotong University, Chengdu 610031, China;
2. School of Mechanical Eng., Southwest Jiaotong University, Chengdu 610031, China

Abstract:

To solve the problem of uneven strut widths of stents cut by laser, laser cutting procedure test was conducted, and the motion of the tube was analyzed.The results show that the deviation of the strut width is mainly caused by the variation in laser defocus and that in the tangent velocity at the cutting point.The procedure parameters were optimized according to the above analysis.The strut widths of the stent cut with the optimized procedure vary within 0.010 mm, conforming to the design specifications, when the eccentricity of tube at cutting point is within 0.030 mm and the defocus is-0.05 mm.

Keywords: laser cutting   strut width   procedure parameter   procedure test   optimization   stent  
收稿日期 2006-07-07 修回日期  网络版发布日期  
DOI:
基金项目:

国家重点基础研究规划项目(973)(2005CB623904);国家自然科学基金资助项目(30318006)

通讯作者: 黄楠(1954- ),教授,博士生导师,E-mail:nhuang@263.net
作者简介: 张勇(1976- ),男,博士研究生,研究方向为心血管机入器械设计与制备,电话:028-87634147

参考文献:
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[2] 王涛.古桂茹.李玉祥,等.激光在机械制造技术中的应用[J].激光杂志,2006,27(3):75-76.WANG Tao,GU Guiru,LI Yuxiang,et al.Application of laser in the technology of mechanical nanufacture[J].Laser Journal,2006,27(3):75-76.
[3] ETAVE F,FINET G,MAURICE B,et al.Mechanical properties of cornary stent deternined by using finite element analysis[J].Journal of Biomechanics,2001,34:1 065-1 070.
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[5] ROGERS C,TSENG D Y,SQUIRE J C,et al.Balloon-artery interactions during stent placement:a finite element analysis approach to pressure,compliance,and stent design as contributors to vascular injury[J].Circ.Res.,1999,84(4):378-385.
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