Function and Performance of Nitinol Vascular Implants
Function and Performance of Nitinol Vascular Implants
复制标题
镍钛合金血管植入物的功能和性能
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
D. Stoeckel
中科院分区：
文献类型：
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作者：
A. Melzer;D. Stoeckel
镍是钛和镍的金属间化合物，已被广泛用作血管植入物的材料。其不同寻常的应力滞后和超弹性使这些设备与人体结构在生物力学上兼容。镍钛合金还具有优异的耐腐蚀性、生物相容性和MR兼容性。本文重点介绍了用于治疗周围血管疾病的自膨式支架的材料特性，如偏置和温度相关的硬度、抗扭结、支架耐久性和疲劳，并描述了不同镍钛支架的设计方面。还解释了其他镍钛植入物的功能和性能，如腔静脉过滤器、心脏间隔重新配对装置和自膨胀心脏瓣膜假体。另有一节描述了磁共振成像中血管内nit-inol植入物的性能。
Nitinol, an intermetallic compound of Titanium and Nickel has found widespread use as material for vascular implants. Its unusual stress hysteresis and superelasticity makes these devices biomechanically compatible with the body's structures. Nitinol also exhibits excellent corrosion resistance, biocompatibility and MR compatibility. The paper focuses on the material specific properties of self expanding stents to treat peripheral vascular disease, like biased and temperature dependent stiffness, kink resistance, stent durability and fatigue, and describes the design aspects of different Nitinol stents. The function and performance of other Nitinol implants is also explained, like vena cava filters, cardiac septal re- pair devices, and self-expanding heart valve prosthesis. A separate section describes the performance of endovascular Nit- inol implants in Magnetic Resonance Imaging, MRI.