| 支架用NiTi合金的表面改性方法研究进展 |
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| 引用本文： | 张涵,张柯,刘平,田浩.支架用NiTi合金的表面改性方法研究进展[J].上海理工大学学报,2018,39(6):48-54. |
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| 作者姓名： | 张涵 张柯 刘平 田浩 |
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| 作者单位： | 上海理工大学 材料科学与工程学院, 上海 200093,上海理工大学 材料科学与工程学院, 上海 200093,上海理工大学 材料科学与工程学院, 上海 200093,微创神通医疗科技(上海)有限公司, 上海 201318 |
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| 基金项目： | 国家自然科学基金资助项目（51471110） |
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| 摘 要： | 近等原子比的NiTi合金因其具有优异的超弹性、形状记忆效应以及良好的生物相容性，在医用植入领域得到了广泛的应用。然而，Ni离子的析出可能诱发过敏和炎症，因此需要对其进行表面改性。从表面氧化、电解抛光、表面涂层、接枝活性分子等方面综述了NiTi合金表面改性方法的研究进展，分析了各处理工艺的技术优势和局限性，指出了NiTi合金表面改性未来的发展趋势。
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| 关 键 词： | NiTi合金 表面改性 生物相容性 耐蚀性 |
| 收稿时间： | 2018/4/26 0:00:00 |
Research Progress of Surface Modification Method for Stent-used NiTi Alloy |
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| ZHANG Han,ZHANG Ke,LIU Ping and TIAN Hao.Research Progress of Surface Modification Method for Stent-used NiTi Alloy[J].Journal of University of Shanghai For Science and Technology,2018,39(6):48-54. |
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| Authors: | ZHANG Han ZHANG Ke LIU Ping and TIAN Hao |
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| Institution: | School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China,School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China,School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China and MicroPort NeuroTech(Shanghai) Co., Ltd., Shanghai 201318, China |
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| Abstract: | NiTi alloys with near equal atomic ratio have been widely used in field of medical implantation owning to their excellent super-elasticity, shape memory effect and good biocompatibility. However, the release of Ni ions may induce allergy and inflammation. Therefore, surface modification of NiTi alloy is needed. The research progress of surface modification method for NiTi alloy is introduced on the concept of surface oxidation, electro-polishing, surface coating and grafting active molecules. Both advantages and limitations of various methods are analyzed. The future development trend of surface modification for NiTi alloy is also pointed out. |
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| Keywords: | NiTi alloy surface modification biocompatibility corrosion resistance |
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