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Low texture, quasi-isotropic metallic stent

机译:低质感,各向同性的金属支架

摘要

Metallic stents which have a randomly oriented microstructure, and possess quasi-isotropic mechanical and physical properties are disclosed. The novel stents can be “tailor-made” to mimic the geometry of the blood vessel(s) at the deployment site and can be designed to treat coronary artery disease at the point where blood vessels branch. The metallic materials of choice are ductile, corrosion resistant and exhibit little crystallographic texture. The novel stents can be produced from a metallic precursor which is quasi-isotropic and exhibits little texture by processing means, such as machining, which do not reintroduce texture. Alternatively, quasi-isotropic and low texture stents are achieved by suitable post-processing of conventionally fabricated stent materials.
机译:公开了具有随机取向的微结构并且具有准各向同性的机械和物理性能的金属支架。新型支架可以“量身定制”以模仿部署部位血管的几何形状,并且可以设计成在血管分支处治疗冠状动脉疾病。选择的金属材料具有延展性,耐腐蚀性,并且几乎没有晶体学纹理。所述新型支架可以由准各向同性的金属前体制成,并且通过诸如机械加工之类的加工方法显示出很少的纹理,而不会重现纹理。或者,通过对常规制造的支架材料进行适当的后处理,可以实现准各向同性和低质构支架。

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