title: Finite element analyses for improved design of peripheral stents.
abstract: Due to the recent increase in the number of stent insertion procedures, the number of studies to evaluate the mechanical behaviors of stents, such as the stress and deformation states, using finite element analysis is also increasing. However, it is still not easy to design stents that are uniformly expanded and show enough radial strength and flexibility. Therefore, in this study, the Taguchi method and finite element analysis were used to determine a set of optimal design variables for unit patterns of stents, and a new design approach was developed to realize uniform expansion, enough radial strength and good flexibility. The stent designed using the new design approach was verified by experiments.
authors.affiliation: a Department of Mechanical Engineering , Sogang University , Seoul , Republic of Korea.
authors.forename: Yong-Hyun
authors.initials: YH
authors.lastname: Lim
authors.affiliation: a Department of Mechanical Engineering , Sogang University , Seoul , Republic of Korea.
authors.forename: Hyun-Yong
authors.initials: HY
authors.lastname: Jeong
mesh_terms: D000497:Alloys / Q000494:pharmacology; D020342:Finite Element Analysis; D006801:Humans; D021621:Imaging, Three-Dimensional; D007834:Lasers; D011474:Prosthesis Design; D015607:Stents; D013314:Stress, Mechanical
chemical_list: D000497:Alloys; C013616:nitinol
keywords: Peripheral stent; Taguchi method; finite element analysis; nitinol; optimal design; self-expandable stent