文献类型：期刊文献

英文题名：Modified Theoretical Model Predicts Radial Support Capacity of Polymer Braided Stents

作者：Hu, Xue[1];Liu, Qingwei[1];Chen, Li[2];Cheng, Jie[1];Liu, Muqing[1];Wu, Gensheng[3];Sun, Renhua[4];Zhao, Gutian[1,5];Yang, Juekuan[1,5];Ni, Zhonghua[1,5]

第一作者：Hu, Xue

通讯作者：Zhao, GT[1];Yang, JK[1];Ni, ZH[1]

机构：[1]Southeast Univ, Sch Mech Engn, Jiangsu Key Lab Design & Manufacture Micronano Bio, Nanjing 211189, Jiangsu, Peoples R China;[2]Henan Univ Econ & Law, Modern Educ Technol Ctr, Zhengzhou 450046, Peoples R China;[3]Nanjing Forestry Univ, Sch Mech & Elect Engn, Nanjing 210037, Peoples R China;[4]Nanjing Univ, Yancheng Hosp 1, Affiliated Hosp, Dept Cardiol,Med Sch, Yancheng 224006, Peoples R China;[5]Southeast Univ, Sch Mech Engn, 79 Suyuan Ave, Nanjing 211189, Peoples R China

第一机构：Southeast Univ, Sch Mech Engn, Jiangsu Key Lab Design & Manufacture Micronano Bio, Nanjing 211189, Jiangsu, Peoples R China

通讯机构：[1]corresponding author), Southeast Univ, Sch Mech Engn, 79 Suyuan Ave, Nanjing 211189, Peoples R China.

年份：2024

卷号：246

外文期刊名：COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE

收录：;EI(收录号：20240715557865);Scopus(收录号：2-s2.0-85184842209);WOS:【SCI-EXPANDED(收录号:WOS:001184650400001)】；

基金：This work is supported by the National Key Research and Develop- ment Program of China (No. 2018YFA0704102) and the Open Research Fund of Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University (No. KF202304) .

语种：英文

外文关键词：Polymer braided stent; Radial supporting capacity; Modified theoretical model; Friction; Torsion

摘要：Background and Objective: Self-expanding polymer braided stents are expected to replace metallic stents in the treatment of Peripheral Arterial Disease, which seriously endangers human health. To restore the patency of blocked peripheral arteries with different properties and functions, the radial supporting capacity of the stent should be considered corresponding to the vessel. A theoretical model can be established as an effective method to study the radial supporting capacity of the stent which can shorten the stent design cycle and realize the customization of the stent according to lesion site. However, the classical model developed by Jedwab and Clerc of radial force is only limited to metallic braided stents, and the predictions for polymer braided stents are deviated. Methods: In this paper, based on the limitation of the J&C model for polymer braided stents, a modified radial force model for polymer braided stents was proposed, which considered the friction between monofilaments and the torsion of the monofilaments. And the modified model was verified by radial force tests of polymer braided stents with different structures and monofilaments. Results: Compared with the J&C model, the proposed modified model has better predictability for the radial force of polymer braided stents that prepared with different braided structure and polymer monofilaments. The root mean squared error of modified model is 0.041 +/- 0.026, while that of the J&C model is 0.246 +/- 0.111. Conclusions: For polymer braided stents, the friction between the polymer monofilaments and the torsion of the monofilaments during the radial compression cannot be ignored. The radial force prediction accuracy of the modified model considering these factors was significantly improved. This work provides a research basis on the theoretical model of polymer braided stents, and improves the feasibility of rapid personalized customization of polymer braided stents.