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首页> 外文期刊>Journal of Biomechanics >Realistic finite element-based stent design: The impact of balloon folding.
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Realistic finite element-based stent design: The impact of balloon folding.

机译：逼真的基于有限元的支架设计：球囊折叠的影响。

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摘要

At present, the deployment of an intravascular stent has become a common and widely used minimally invasive treatment for coronary heart disease. To improve these coronary revascularization procedures (e.g. reduce in-stent restenosis rates) the optimal strategy lies in the further development of stent design, material and coatings. In the context of optimizing the stent design, computational models can provide an excellent research tool. In this study, the hypothesis that the free expansion of a stent is determined by the unfolding and expansion of the balloon is examined. Different expansion modeling strategies are studied and compared for a new generation balloon-expandable coronary stent. The trifolded balloon methodology presented in this paper shows very good qualitative and quantitative agreement with both manufacturer's data and experiments. Therefore, the proposed numerical expansion strategy appears to be a very promising optimization methodology in stent design.
机译：目前，血管内支架的部署已经成为冠心病的普遍且广泛使用的微创治疗。为了改善这些冠状动脉血运重建程序（例如降低支架内再狭窄率），最佳策略在于进一步开发支架设计，材料和涂层。在优化支架设计的背景下，计算模型可以提供出色的研究工具。在这项研究中，检查了支架的自由膨胀由球囊的展开和膨胀决定的假设。研究和比较了新一代球囊扩张式冠状动脉支架的不同扩张模型策略。本文介绍的三重球囊方法论与制造商的数据和实验均显示出很好的定性和定量一致性。因此，提出的数值扩展策略似乎是支架设计中非常有前途的优化方法。

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