A novel wavy non-uniform ligament chiral stent with J-shaped stress-strain behavior to mimic the native trachea

作     者：Jiapeng Liu Xinhua Yao Zhenwei Wang Jian Ye Congcong Luan Jianzhong Fu Yong He Jiapeng Liu;Xinhua Yao;Zhenwei Wang;Jian Ye;Congcong Luan;Jianzhong Fu;Yong He

作者机构：State Key Laboratory of Fluid Power and Mechatronic SystemsCollege of Mechanical EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory of 3D Printing Process and Equipment of Zhejiang ProvinceCollege of Mechanical EngineeringZhejiang UniversityHangzhou 310027China Department of PneumologyAffiliated Hangzhou First People’s HospitalZhejiang University School of MedicineHangzhou 310006China 

基　　金：supported by the National Key Research and Development Program of China(No.2020YFC1107103) the National Natural Science Foundation of China(No.51821093) the Research Project of Public Welfare Technology Application of Zhejiang Province,China(No.LGF21H010006) 

出 版 物：《Bio-Design and Manufacturing》 (生物设计与制造（英文）)

年 卷 期：2021年第4卷第4期

页      码：851-866页

摘      要：Tracheal stents are an important form of treatment for benign or malignant central airway ***,the mechanical behavior of current tracheal stents is significantly different from that of the native trachea,which leads to a variety of serious *** this study,inspired by the structure of the native trachea,a wavy non-uniform ligament chiral tracheal stent is proposed,in which J-shaped stress-strain behavior and negative Poisson s ratio response are achieved by replacing the tangential ligament of tetrachiral and anti-tetrachiral hybrid structure with a wavy non-uniform *** the combination of theoretical analysis,finite element analysis and experimental tests,a wide range of desired J-shaped stress-strain curves are explored to mimic the native porcine trachea by tailoring the stent ***,the negative Poisson’s ratio and auxetic diameter curves versus axial strain of the stent are also studied in detail,thus contributing to the enhancement of cross-section ventilation and reducing the migration of the *** novel tracheal stent with a unique microstructure shows a potential to perfectly match the physiological activities of the native trachea and thereby reduce potential complications.

主 题 词：Tracheobronchial stenosis Tracheal stent Chiral auxetic structure Wavy non-uniform ligament J-shaped stress-strain behavior Negative Poisson’s ratio 

学科分类：0710[理学-生物科学类] 0831[工学-公安技术类] 1004[医学-公共卫生预防医学类] 0817[工学-轻工类] 08[工学] 0807[工学-电子信息类] 0805[工学-能源动力学] 0802[工学-机械学] 0836[0836] 0811[工学-水利类] 10[医学] 

核心收录：

D　O　I：10.1007/s42242-021-00159-y

馆 藏 号：203104768...