用有限元法治疗动脉狭窄症的编织复合体支架的机械特性
Gaiping Zhao1, Zhengnan Zhang1, Eryun Chen2
1School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China.
Computer methods in biomechanics and biomedical engineering
|February 27, 2025
概括
这项研究探讨了用于动脉狭窄的复合体支架,发现增加-----合金含量可以增强辐射支,同时减少曲刚度,优化支架设计.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 心血管器械 心血管器械
背景情况:
- 自扩展的编织支架对于治疗动脉狭窄症至关重要.
- 优化支架的机械性能,如辐射强度和灵活性,对于有效的治疗至关重要.
研究的目的:
- 研究由- (NiTi) 和合金 (JDBM) 制成的复合体支架的机械性能.
- 分析不同NiTi和JDBM比例对辐射压缩强度和曲灵活性的影响.
主要方法:
- 构建了具有不同NiTi和JDBM合金比率的编织复合体支架的有限元 (FE) 模型.
- 使用FE建模分析了辐射压缩强度和纵向曲灵活性.
主要成果:
- 使用4%NiTi和20%JDBM (4NiTi) 的支架表现出最高的辐射支 (16.39N).
- 增加JDBM含量导致曲强度降低7.72%.
结论:
- 在编织式支架中更换更多的NiTi与JDBM可以提高辐射强度.
- 这种组合修改降低了曲刚度,为带支架设计提供了更好的洞察力.
相关概念视频
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