Design, Characterization, and 3D Printing of Cardiovascular Stents with Zero Poisson’s Ratio in Longitudinal Deformation
作者机构：Biomanufacturing CenterDepartment of Mechanical EngineeringTsinghua UniversityBeijing 100084China Biomanufacturing and Rapid Forming Technology Key Laboratory of BeijingBeijing 100084China “Biomanufacturing and Engineering Living Systems”Innovation International Talents Base(111 Base)Beijing 100084China Department of Mechanical EngineeringDrexel UniversityPhiladelphiaPA 19104USA
出 版 物：《Engineering》 (工程（英文）)
年 卷 期：2021年第7卷第7期
页 面：979-990页
核心收录：
学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：funding support from the Beijing Municipal Natural Science Foundation,China(Z150001) supported by Beijing Anzhen Hospital
主 题：Additive manufacturing 3D printing Screw extrusion Cardiovascular stent Zero Poisson’s ratio
摘 要：Inherent drawbacks associated with drug-eluting stents have prompted the development of bioresorbable cardiovascular *** manufacturing(3-dimentional(3D)printing)has been widely applied in medical *** 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 *** evaluation of the mechanical properties and a preliminary biological evaluation of 3D-printed stents with different parameters are carried *** conclusion,the screw extrusion-based 3D printing system shows potential for customizable stent fabrication.
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