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Updated: May 25, 2025

Ferromagnetic Bare Metal Stent for Endothelial Cell Capture and Retention
Published on: September 18, 2015
Mechanical characteristics of braided composite stents for carotid artery stenosis using finite element method
Gaiping Zhao1, Zhengnan Zhang1, Eryun Chen2
1School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China.
Abstract:
Self-expandable braided stents are widely used for carotid artery stenosis due to flexibility. Finite element (FE) models of braided composite stents with different proportions of NiTi and Mg-2.1Nd-0.2Zn-0.5Zr (JDBM) alloy (24NiTi (24:0), 20NiTi (20:4), 16NiTi (16:8), 12NiTi (12:12), 8NiTi (8:16), 4NiTi (4:20)) were constructed to analyze their radial compression strength and longitudinal bending flexibility. The 4NiTi stent showed the highest radial support (16.39N) and decreased bending strength by 7.72%. These results suggest that replacing more NiTi with JDBM wires enhances the stent's radial strength and reduces bending stiffness, providing new insights into stent design.
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