ArticleBiomedical engineering online2016
Mechanical response of cardiovascular stents under vascular dynamic bending.
Article in Biomedical engineering online, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- How plaque morphology and stenosis severity govern stent-artery interaction and deployment outcomes: a computational study.Medical & biological engineering & computing · 2026Article
- FEM Simulations of Fatigue Crack Initiation in the Oligocrystalline Microstructure of Stents.Materials (Basel, Switzerland) · 2023Article
- Composite Nanocoatings of Biomedical Magnesium Alloy Implants: Advantages, Mechanisms, and Design Strategies.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Review
- 3D Printing of Polymeric Bioresorbable Stents: A Strategy to Improve Both Cellular Compatibility and Mechanical Properties.Polymers · 2022Review
- Acute Stent-Induced Endothelial Denudation: Biomechanical Predictors of Vascular Injury.Frontiers in cardiovascular medicine · 2021Article
- Recent Advances in Manufacturing Innovative Stents.Pharmaceutics · 2020Review
- Finite Element Analysis of the Implantation Process of Overlapping Stents.Journal of medical devices · 2017Article
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Authors and funding
6 authors.
Funding
Abstract
backroundCurrently, the effect of vascular dynamic bending (VDB) has not been fully considered when studying cardiovascular stents' long-term mechanical properties, as the previous studies about stent's mechanical properties mostly focus on the effect of vascular pulsation (VP). More and more clinical reports suggested that the effect of VDB have a significant impact on stent.
methodsIn this paper, an explicit-implicit coupling simulation method was applied to analyze the mechanical responses of cardiovascular stents considering the effect of VDB. The effect of VP on stent mechanical properties was also studied and compared to the effect of VDB.
resultsThe results showed that the dynamic bending deformation occurred in stents due to the effect of VDB. The effects of VDB and VP resulted in alternating stress states of the stent, while the VDB alternate stresses effective on the stent were almost three times larger than that of the VP. The stress concentration under VDB mainly occurred in bridge struts and the maximal stress was located in the middle loops of the stent. However, the stress distributed uniformly in the stents under the effect of VP. Stent fracture occurred more frequently as a result of VDB with the predicted fracture position located in the bridging struts of the stent. These results are consistent with the reported data in clinical literatures. The stress of the vessel under VDB was higher, than that caused by VP.
conclusionsThe results showed that the effect of VDB has a significant impact on the stent's stress distribution, fatigue performance and overall stress on the vessel, thus it is necessary to be considered when analyzing stent's long-term mechanical properties. Meanwhile, the results showed that the explicit-implicit coupling simulation can be applied to analyze stent mechanical properties.
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