Finite element analysis of the mechanical performance of a zinc alloy stent with the tenon-and-mortise structure

Author:

Wang Sirui12,Wu Dandan12,Li Gaoyang3,Peng Kun1,Mu Yongliang4,Ohta Makoto3,Anzai Hitomi3,Qiao Aike1

Affiliation:

1. College of Life Science and Chemistry, Beijing University of Technology, Beijing, China

2. Graduate School of Engineering, Chiba University, Inage, Chiba, Japan

3. Institute of Fluid Science, Tohoku University, Sendai, Miyagi, Japan

4. Northeastern University, Shenyang, Liaoning, China

Abstract

BACKGROUND: Inadequate scaffolding performance hinders the clinical application of the biodegradable zinc alloy stents. OBJECTIVE: In this study we propose a novel stent with the tenon-and-mortise structure to improve its scaffolding performance. METHODS: 3D models of stents were established in Pro/E. Based on the biodegradable zinc alloy material and two numerical simulation experiments were performed in ABAQUS. Firstly, the novel stent could be compressed to a small-closed ring by a crimp shell and can form a tenon-and-mortise structure after expanded by a balloon. Finally, 0.35 MPa was applied to the crimp shell to test the scaffolding performance of the novel stent and meanwhile compare it with an ordinary stent. RESULTS: Results showed that the novel stent decreased the recoiling ratio by 70.7% compared with the ordinary stent, indicating the novel structure improved the scaffolding performance of the biodegradable zinc alloy stent. CONCLUSION: This study proposes a novel design that is expected to improve the scaffolding performance of biodegradable stents.

Publisher

IOS Press

Subject

Health Informatics,Biomedical Engineering,Information Systems,Biomaterials,Bioengineering,Biophysics

Reference23 articles.

1. Stent thrombosis and restenosis: what have we learned and where are we going? The Andreas Grüntzig Lecture ESC 2014;Byrne;Eur Heart J.,2015

2. Severe allergic reaction during angioplasty culminating to fatal acute stent thrombosis: an association with Kounis syndrome;Despotopoulos;Hear Lung.,2019

3. Resistant in-stent restenosis in the drug eluting stent era;Theodoropoulos;Catheter Cardiovasc Interv.,2016

4. Long-term clinical outcomes after treatment with excimer laser coronary atherectomy for in-stent restenosis of drug-eluting stent;Ichimoto;Int Heart J.,2018

5. Bioresorbable vascular scaffolds: biodegradation, drug delivery and vascular remodeling;Tesfamariam;Pharmacol Res.,2016

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