期刊
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
卷 42, 期 -, 页码 705-714出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.msec.2014.05.078
关键词
Biodegradable magnesium alloy stents (MAS); Finite element analysis; Stent design; Annealing
资金
- National Basic Research Program of China (973 Program) [2012CB619101]
- National Science & Technology Pillar Supporting Program of China [2012BAI18B01]
- Foundation of Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Hebei Province Science and Technology Department [12966116D]
Stents made of biodegradable magnesium alloys are expected to provide a temporary opening into a narrowed arterial vessel until it remodels and will progressively disappear thereafter. Inferior mechanical properties and fast corrosion of the magnesium alloys are the two crucial factors that impede the clinical application of the magnesium alloy stents (MAS). In the present study, gradual strut width, addition of the peak-to-valley unit and introduction of the annealing technology were designed and investigated by finite element analysis in order to improve the performance of the MAS. Two experiments were carried out for a preliminary validation of the simulation. (C) 2014 Elsevier B.V. All rights reserved.
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