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Thermomechanical analysis of shape memory polyurethane braided stent using finite element method

机译:形状记忆聚氨酯编织支架的热力学有限元分析

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@@Polymeric stent is considered as an alternative of metallic stent which have some problems such as restenosis and short stenting period. Several elements need to be considered for designing an effective stent. Though, the biocompatibility of the stent may be the first issue for the stent procedure due to the restenosis, the mechanical behavior of a stent and stent-vessel interactions are also very important factors to ensure its opening within the arterial conduits. Since the technical success of a stent for many types of obstructive lesion depends directly on its mechanical behavior, a mechanical model is required to design the stent structure through predictive modeling. This study aimed to investigate the thermomechanical behaviors of polymeric braided stents that have thermal-induced shape memory properties and to analyze the effect of parameters for the optimal design.
机译:聚合物支架被认为是金属支架的替代品,其具有一些问题,例如再狭窄和支架期短。设计有效的支架需要考虑几个因素。尽管由于再狭窄,支架的生物相容性可能是支架手术的首要问题,但支架的机械性能以及支架与血管之间的相互作用也是确保其在动脉导管内开放的非常重要的因素。由于针对多种类型的梗阻性病变的支架的技术成功直接取决于其机械行为,因此需要通过力学模型来通过预测建模来设计支架结构。这项研究旨在调查具有热诱导形状记忆特性的聚合物编织支架的热机械行为,并分析参数对最佳设计的影响。

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