title: Finite element analyses for optimization design of biodegradable magnesium alloy stent.
abstract: 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.
authors: Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China.
authors: Junlei
authors: J
authors: Li
authors: Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China.
authors: Feng
authors: F
authors: Zheng
authors: Nanjing University of Science and Technology, Nanjing 210094, China.
authors: Xun
authors: X
authors: Qiu
authors: Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China.
authors: Peng
authors: P
authors: Wan
authors: Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China. Electronic address: lltan@imr.ac.cn.
authors: Lili
authors: L
authors: Tan
authors: Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China. Electronic address: kyang@imr.ac.cn.
authors: Ke
authors: K
authors: Yang
mesh_terms: D020341:Absorbable Implants; D000497:Alloys / Q000737:chemistry*; D020342:Finite Element Analysis; D008274:Magnesium / Q000737:chemistry*; D011474:Prosthesis Design / Q000379:methods*; D015607:Stents
chemical_list: D000497:Alloys; D008274:Magnesium
keywords: Annealing; Biodegradable magnesium alloy stents (MAS); Finite element analysis; Stent design