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Journal article
Design, Characterization, and 3D Printing of Cardiovascular Stents with Zero Poisson's Ratio in Longitudinal Deformation
Engineering (Beijing, China), v 7(7), pp 979-990
01 Jul 2021
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Inherent drawbacks associated with drug-eluting stents have prompted the development of bioresorbable cardiovascular stents. Additive manufacturing (3-dimentional (3D) printing) has been widely applied in medical devices. In this study, we develop a novel screw extrusion-based 3D printing system with a new designed mini-screw extruder to fabricate stents. A stent with a zero Poisson's ratio (ZPR) structure is designed, and a preliminary monofilament test is conducted to investigate appropriate fabrication parameters. 3D-printed stents with different geometric structures are fabricated and analyzed by observation of the surface morphology. An evaluation of the mechanical properties and a preliminary biological evaluation of 3D-printed stents with different parameters are carried out. In conclusion, the screw extrusion-based 3D printing system shows potential for customizable stent fabrication. (C) 2021 THE AUTHORS. Published by Elsevier LTD on behalf of Chinese Academy of Engineering and Higher Education Press Limited Company.
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Details
- Title
- Design, Characterization, and 3D Printing of Cardiovascular Stents with Zero Poisson's Ratio in Longitudinal Deformation
- Creators
- Chengjin Wang - Tsinghua UniversityLei Zhang - Tsinghua UniversityYongcong Fang - Tsinghua UniversityWei Sun - Tsinghua University
- Publication Details
- Engineering (Beijing, China), v 7(7), pp 979-990
- Publisher
- Elsevier
- Number of pages
- 12
- Grant note
- Z150001 / Beijing Municipal Natural Science Foundation, China; Beijing Natural Science Foundation Beijing Anzhen Hospital
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000711220200014
- Scopus ID
- 2-s2.0-85090299656
- Other Identifier
- 991019167611304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Multidisciplinary