Mechanical behavior of peripheral stents and stent-vessel interaction: a computational study
| Autor: | Vittoria Flamini, Serena Dottori, Giuseppe Vairo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Arterial disease
Computer science medicine.medical_treatment 0206 medical engineering Computational Mechanics 02 engineering and technology 030204 cardiovascular system & hematology stenting biomechanics 03 medical and health sciences 0302 clinical medicine arterial mechanics Stent deployment Angioplasty Arterial mechanics medicine balloon-expandable stents Settore ICAR/08 - Scienza delle Costruzioni Arterial wall braided self-expandable stents Stent 020601 biomedical engineering Peripheral Computational Mathematics finite-element method Stent design Biomedical engineering |
| Popis: | In this paper stents employed to treat peripheral artery disease are analyzed through a three-dimensional finite-element approach, based on a large-strain and large-displacement formulation. Aiming to evaluate the influence of some stent design parameters on stent mechanics and on the biomechanical interaction between stent and arterial wall, quasi-static and dynamic numerical analyses are carried out by referring to computational models of commercially and noncommercially available versions of both braided self-expandable stents and balloon-expandable stents. Addressing isolated device models, opening mechanisms and flexibility of both opened and closed stent configurations are numerically experienced. Moreover, stent deployment into a stenotic peripheral artery and possible postdilatation angioplasty (the latter for the self-expandable device only) are simulated by considering different idealized vessel geometries and accounting for the presence of a stenotic plaque. Proposed results highlight i... |
| Databáze: | OpenAIRE |
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