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On-line Access: 2021-08-26
Received: 2021-03-29
Revision Accepted: 2021-07-11
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A novel wavy non‑uniform ligament chiral stent with J‑shaped stress–strain behavior to mimic the native trachea
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Jiapeng Liu, Xinhua Yao, Zhenwei Wang, Jian Ye, Congcong Luan, Jianzhong Fu, Yong He. A novel wavy non‑uniform ligament chiral stent with J‑shaped stress–strain behavior to mimic the native trachea[J]. Journal of Zhejiang University Science D, 2021, 4(4): 851-866.
@article{title="A novel wavy non‑uniform ligament chiral stent with J‑shaped stress–strain behavior to mimic the native trachea",
author="Jiapeng Liu, Xinhua Yao, Zhenwei Wang, Jian Ye, Congcong Luan, Jianzhong Fu, Yong He",
journal="Journal of Zhejiang University Science D",
volume="4",
number="4",
pages="851-866",
year="2021",
publisher="Zhejiang University Press & Springer",
doi="10.1007/s42242-021-00159-y"
}
%0 Journal Article
%T A novel wavy non‑uniform ligament chiral stent with J‑shaped stress–strain behavior to mimic the native trachea
%A Jiapeng Liu
%A Xinhua Yao
%A Zhenwei Wang
%A Jian Ye
%A Congcong Luan
%A Jianzhong Fu
%A Yong He
%J Journal of Zhejiang University SCIENCE D
%V 4
%N 4
%P 851-866
%@ 1869-1951
%D 2021
%I Zhejiang University Press & Springer
%DOI 10.1007/s42242-021-00159-y
TY - JOUR
T1 - A novel wavy non‑uniform ligament chiral stent with J‑shaped stress–strain behavior to mimic the native trachea
A1 - Jiapeng Liu
A1 - Xinhua Yao
A1 - Zhenwei Wang
A1 - Jian Ye
A1 - Congcong Luan
A1 - Jianzhong Fu
A1 - Yong He
J0 - Journal of Zhejiang University Science D
VL - 4
IS - 4
SP - 851
EP - 866
%@ 1869-1951
Y1 - 2021
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1007/s42242-021-00159-y
Abstract: tracheal stents are an important form of treatment for benign or malignant central airway obstruction. However, the mechani-cal behavior of current tracheal stents is signifcantly diferent from that of the native trachea, which leads to a variety of
serious complications. In 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 ligament.
Through the combination of theoretical analysis, fnite 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 geometry. Besides, the
negative Poisson's ratio and auxetic diameter curves versus axial strain of the stent are also studied in detail, thus contribut-ing to the enhancement of cross-section ventilation and reducing the migration of the stent. This 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.
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