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使用工业方法设计的离心血的优化,通过实验和数值研究来实现

Kohyar Yazdanpanah-Ardakani¹, Hanieh Niroomand-Oscuii², Reza Sahebi-Kuzeh Kanan¹

¹Department of Biomedical Engineering, Sahand University of Technology, Tabriz, Iran.

Scientific reports

|March 29, 2024

概括

这项研究设计了一个离心作为心室辅助装置,优化了叶片设计,以改善心力衰竭患者的液压和生理性能.

科学领域:

生物医学工程生物医学工程
流体动力学流体动力学
医疗器械医疗器械

背景情况:

改进的冠状动脉疾病治疗增加了生存率,导致心力衰竭病例的增加.
室腔辅助器件 (VAD) 对于管理晚期心力衰竭至关重要.
需要优化VAD设计以改善患者的治疗结果.

研究的目的:

设计和评估一种新型离心,用于作为心室辅助装置.
为了研究几何参数和叶片形状对性能的影响.
为了将设计的的效率与基准装置进行比较.

主要方法:

利用点对点设计方法进行刀片配置,探索对数和二次关系.
使用ANSYS CFX 17.0.0.模拟了58个不同的刀片配置.
用美国食品和药物管理局 (FDA) 的基准验证了数值模拟,并使用液压测试装置进行了实验性比较.

主要成果:

确定了一个最佳的刀片设计,输入角度为45°,输出角度为55°,利用对数关系.
与FDA的基准相比,所选择的螺旋配置在各种流速中显示出总流量显著增加 (至少20%),与FDA的基准相比.
实验结果证实了设计的VAD的优越液压性能.

结论:

设计的离心,特别是具有特定叶片角度和对数轮的螺旋轮,为心室辅助应用提供了更高的性能.
这种优化的VAD设计有可能改善心力衰竭患者的生活质量.
该研究验证了下一代VAD的稳健设计和测试方法.

关键词:

刀片的形状是叶片的形状.离心的中心离心.一点一点的方法.腹腔室辅助装置 (VAD) 是一种心室辅助装置.

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