ArticlePolymers2020
Theoretical and Numerical Analysis of Mechanical Behaviors of a Metamaterial-Based Shape Memory Polymer Stent.
Article in Polymers, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Article
- Numerical Evaluation of a Zero Poisson's Ratio Structure in µ-3D-Printed Self-Expanding Nitinol Stents.Micromachines · 2026Article
- 4D Printing of TBCHA-Based Shape Memory Polymer Composites: Bioglass 45S5 Addition Improves Stability Retention and Shape Memory Performance.ACS omega · 2026Article
- Biodegradable Metal-Based Stents: Advances, Challenges, and Prospects.Journal of functional biomaterials · 2025Review
- [Research on the method of loading exosomes onto absorbable stents].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024Article
- From Static to Dynamic: Smart Materials Pioneering Additive Manufacturing in Regenerative Medicine.International journal of molecular sciences · 2023Review
- Liquid Metal-Based Flexible Bioelectrodes for Management of In-Stent-Restenosis: Potential Application.Biosensors · 2023Article
- Topology optimization on metamaterial cells for replacement possibility in non-pneumatic tire and the capability of 3D-printing.PloS one · 2023Article
- 3D Printing of Polymeric Bioresorbable Stents: A Strategy to Improve Both Cellular Compatibility and Mechanical Properties.Polymers · 2022Review
- Article
- A Review on Manufacturing and Post-Processing Technology of Vascular Stents.Micromachines · 2022Review
- Design and Analysis of a Biodegradable Polycaprolactone Flow Diverting Stent for Brain Aneurysms.Bioengineering (Basel, Switzerland) · 2021Article
- Computational Analysis of Mechanical Performance for Composite Polymer Biodegradable Stents.Materials (Basel, Switzerland) · 2021Article
- Structural Design of Vascular Stents: A Review.Micromachines · 2021Review
- Principles for Controlling the Shape Recovery and Degradation Behavior of Biodegradable Shape-Memory Polymers in Biomedical Applications.Micromachines · 2021Review
- Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Shape memory polymers (SMPs) have gained much attention in biomedical fields due to their good biocompatibility and biodegradability. Researches have validated the feasibility of shape memory polymer stent in treatment of vascular blockage. Nevertheless, the actual application of SMP stents is still in infancy. To improve the mechanical performance of SMP stent, a new geometric model based on metamaterial is proposed in this study. To verify the feasibility and mechanical behavior of this type of stent, buckling analysis, and in vivo expansion performance of SMP stent are simulated. Numerical results exhibit that stent of a smaller radius behaves a higher critical buckling load and smaller buckling displacement. Besides, a smaller contact area with vessel and smaller implanted stress are observed compared with traditional stents. This suggests that this SMP stent attributes to a reduced vascular restenosis. To characterize the radial strength of SMP stent, an analytical solution is derived by the assumption that the deformation of stent is mainly composed of bending and stretch. The radial strength of SMP stent is assessed in form of radial force. Analytical results reveal that radial strength is depended on the radius of stent and periodic numbers of unit cell in circumferential direction.
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Registered trials
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