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Feasibility of using bulk metallic glass for self-expandable stent applications
, Article Journal of Biomedical Materials Research - Part B Applied Biomaterials ; Volume 105, Issue 7 , 2017 , Pages 1874-1882 ; 15524973 (ISSN) ; Jafary Zadeh, M ; Tavakoli, R ; Cui, F ; Sharif University of Technology
Abstract
Self-expandable stents are widely used to restore blood flow in a diseased artery segment by keeping the artery open after angioplasty. Despite the prevalent use of conventional crystalline metallic alloys, for example, nitinol, to construct self-expandable stents, new biomaterials such as bulk metallic glasses (BMGs) are being actively pursued to improve stent performance. Here, we conducted a series of analyses including finite element analysis and molecular dynamics simulations to investigate the feasibility of using a prototypical Zr-based BMG for self-expandable stent applications. We model stent crimping of several designs for different percutaneous applications. Our results indicate...