Design strategy of poly (L-lactic acid) mixed braided stent: The influence of braiding ratio of thick and thin monofilaments,Journal of Applied Polymer Science

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Design strategy of poly (L-lactic acid) mixed braided stent: The influence of braiding ratio of thick and thin monofilaments
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2024-01-02 , DOI: 10.1002/app.55100
Chen Zhang ₁ , Xue Hu ₁ , Bin Wang ₁ , Wentao Liu ₁ , Jinbo Liu ₁ , Gensheng Wu ₂ , Jie Cheng ₁ , Zhonghua Ni ₁ , Gutian Zhao ₁

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For the design of polymer stents, supportability and flexibility are two important indexes, but they are often difficult to balance. The mixed braiding of monofilaments with different diameters provides a potential solution to balance these two indices. In this study, the influence of mixed braiding on the mechanical properties of the stent was further explored by adjusting the knitting ratio of thick and thin monofilaments. By replacing the monofilaments in the stent with monofilaments with smaller diameters in turn, the changing trend of supportability and flexibility is obtained. The results show that, when the number of thick monofilaments is greater than or equal to that of thin monofilaments, the supportability of the stent can not only be maintained but also the flexibility can be greatly improved. Therefore, mixed braiding has the function of adjusting supportability and flexibility.

中文翻译：

聚(L-乳酸)混合编织支架的设计策略：粗细单丝编织比例的影响

对于聚合物支架的设计来说，支撑性和灵活性是两个重要指标，但往往很难平衡。不同直径的单丝混合编织为平衡这两个指标提供了潜在的解决方案。本研究通过调整粗细单丝的编织比例，进一步探讨混合编织对支架力学性能的影响。通过依次将支架内的单丝更换为直径较小的单丝，得到支撑性和柔韧性的变化趋势。结果表明，当粗单丝的数量大于或等于细单丝的数量时，不仅可以保持支架的支撑性，而且可以大大提高支架的柔韧性。因此，混合编织具有调节支撑性和灵活性的功能。

更新日期：2024-01-02

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