PERFORMANCE ANALYSIS OF HEXAGONAL UNIT CELL STENT DESIGN AND SINGLE-LAYERED MANUFACTURABILITY WITH FDM

نویسندگان

چکیده

The usability of polymer stents is questioned according to the results obtained from preliminary clinical studies for biodegradable polymer-based developed after drug-eluting stents. Due high strut thickness and weak mechanical properties stents, research continues on creation new models by improving design material. dog-boning in balloon-expanded damages intimal medial layers within artery. This damage causes neointimal hyperplasia restenosis early period. During balloon expansion Palmaz-Schatz unit cell model, which one metallic stent geometries, foreshortening rates occur. In this study, a was carried out hexagonal geometry PLLA material, taking into account formed geometry. ratio designed thin determined finite element simulation. addition, vessel injury three-layered artery calcified plaque structure measured during expansion. with reduced compared model. However, 3D printing produced as single layer fused deposition modeling PLA/PHA blends, it wrapped heating tubular table brought form.

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ژورنال

عنوان ژورنال: International journal of 3d printing technologies and digital industry

سال: 2022

ISSN: ['2602-3350']

DOI: https://doi.org/10.46519/ij3dptdi.1134055