摘要
The compression performance of a degradable ureteral stent is analyzed and the parameters are optimized by a finite element modeling method.The degradable ureteral stent explored in this paper is developed from poly(glycolic acid)(PGA)and poly(lactic-co-glycolic acid)(PLGA)degradable materials.Based on the actual measurement of fabric structure parameters,the three-dimensional model of the stent is established with the help of the modeling software.The finite element analysis software is used to simulate the compression process of the degradable ureteral stent.The parameters of materials,interactions and boundary conditions are set according to the compression environment of the stent for modeling and simulation.On this basis,the friction coefficient of yarns,the yarn radius,and the braided angle of the stent are further compared.The comparison test is carried out by a single variable.The experimental results show that the change of yarn friction coefficient has little influence on the compressive stress,while the yarn radius and the braided angle of the stent have a great influence on the compressive stress.
作者
刘璐
刘肖燕
郝矿荣
LIU Lu;LIU Xiaoyan;HAO Kuangrong(College of Information Science and Technology,Donghua University,Shanghai 201620,China;Engineering Research Center of Digitized Textile&Apparel Technology,Ministry of Education,Donghua University,Shanghai 201620,China)
基金
National Natural Science Foundation of China(No.61903078)
Fundamental Research Funds for the Central Universities of Ministry of Education of China(Nos.2232021A-10 and 2232020D-48)
Natural Science Foundation of Shanghai,China(No.20ZR1400400)
Ministry of Education and Research Collaborative Educational Projects,China(No.202102314006)。
