2008
DOI: 10.1590/s1678-58782008000300012
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Application of the topological optimization technique to the stents cells design for angioplasty

Abstract: Restoring the internal lumen of arteries by employing an expandable mesh (stent) of

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Cited by 6 publications
(5 citation statements)
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“…For the definition of geometry of stent to be studied in this paper, it was used the results obtained by Guimarães et al (2008) in a previous work by the topology optimization technique. After the generation of the optimal topologies of the flexibility and stiffness cells from stent, Araújo ( 2016) improved these geometries by the reduction of the stress concentration regions in this model.…”
Section: Design Of the Geometrical Model Of The Stent Balloon And Arterymentioning
confidence: 99%
See 1 more Smart Citation
“…For the definition of geometry of stent to be studied in this paper, it was used the results obtained by Guimarães et al (2008) in a previous work by the topology optimization technique. After the generation of the optimal topologies of the flexibility and stiffness cells from stent, Araújo ( 2016) improved these geometries by the reduction of the stress concentration regions in this model.…”
Section: Design Of the Geometrical Model Of The Stent Balloon And Arterymentioning
confidence: 99%
“…Gervaso et al (2008) have investigated different strategies to be used in the modelling the 316 L stainless steel stent expansion process using the finite element method. Guimarães et al (2008) have purposed a design methodology of 316 L stainless steel stents cells by applying the topology optimization for the definition of their geometry. Phani et al (2014) have studied the several mechanisms of expansion of stents for angioplasty and their influence in the design of the topologies of cells.…”
Section: Artigo Introductionmentioning
confidence: 99%
“…Herrmann et al [145] developed a bistable heart valve prosthesis that can be folded inside a catheter and percutaneously inserted for delivery to the patient's heart for implantation. In designing cardicovascular stents, topology optimization was used to generate optimal geometry of stent cells and maximize the stiffness of the point of application of forces, thereby maintaining structural integrity [146]. However, plastic strains can cause non-uniformity in the expanded portion of the stent.…”
Section: Implants and Deployable Devicesmentioning
confidence: 99%
“…TO based contact analysis of stent and diseased artery is a novel approach to take into account the accurate loading conditions of different plaque types to customise stent architectures according to specific lesions while maintaining vessel lumen area. Although many groups have researched the biomechanical performance of stents using finite element methods [13,[34][35][36][37][38], including very limited stent TO studies [39][40][41], topological optimisation has not been explored in the plaquespecific stent design fields. This paper aims to demonstrate that TO can be used to generate designs that enable recoil to be minimised even in conditions where there are strong variations in material property and surface topology of the lumen side of an artery, particularly in the axial direction.…”
Section: Med-15-1278mentioning
confidence: 99%