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dc.contributor.author Sassetti, Fernando
dc.contributor.author Guarnieri, Fabio Ariel
dc.contributor.author Garelli, Luciano
dc.contributor.author Storti, Mario Alberto
dc.date.available 2017-02-17T18:19:47Z
dc.date.issued 2011-08
dc.identifier.citation Sassetti, Fernando; Guarnieri, Fabio Ariel; Garelli, Luciano; Storti, Mario Alberto; Characterization and Simulation of an Active Microvalve for Glaucoma; Taylor & Francis Ltd; Computer Methods In Biomechanics And Biomedical Engineering; 15; 12; 8-2011; 1273-1280
dc.identifier.issn 1025-5842
dc.identifier.uri http://hdl.handle.net/11336/13141
dc.description.abstract Glaucoma drainage device (GDD) has the potential to eliminate hypotony but still suffers from poor flow control and fibrosis. The ideal shunt should change its hydraulic resistance to achieve the desired intraocular pressure (IOP). In this study, the characterisation of a preliminary design of a new GDD is presented. This is activated by means of a diaphragm, which is actuated by conducting polymers. The valve can be manufactured employing microelectromechanical system technology by soft lithography. The characterisation process is performed by numerical simulation using the finite element method, considering the coupling between the fluid and the structure (diaphragm) obtaining the hydraulic resistance for several positions of the diaphragm. To analyse the hydraulic system of the microvalve implanted in a human eye, an equivalent circuit model was used. The parameters of the equivalent circuit model were obtained from numerical simulation. The hydraulic resistance of the designed GDD varies in the range of 13.08–0.36mmHgmin/ml compared with 3.38– 0.43mmHgmin/ml for the Ahmed valve. The maximum displacement of the diaphragm in the vertical direction is 18.9 mm, and the strain in the plane is 2%. The proposed preliminary design allows to control the IOP by varying the hydraulic resistance in a greater range than the existing passive valves, and the numerical simulation facilitates the characterisation and the improvement of the design before its construction, reducing time and costs.
dc.format application/pdf
dc.language.iso eng
dc.publisher Taylor & Francis Ltd
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject glaucoma
dc.subject microvalve
dc.subject finite element method
dc.subject fluid structure interaction
dc.subject.classification Otras Ingeniería Mecánica
dc.subject.classification Ingeniería Mecánica
dc.subject.classification INGENIERÍAS Y TECNOLOGÍAS
dc.title Characterization and Simulation of an Active Microvalve for Glaucoma
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-02-17T17:24:19Z
dc.journal.volume 15
dc.journal.number 12
dc.journal.pagination 1273-1280
dc.journal.pais Reino Unido
dc.journal.ciudad Londres
dc.description.fil Fil: Sassetti, Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
dc.description.fil Fil: Guarnieri, Fabio Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
dc.description.fil Fil: Garelli, Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
dc.description.fil Fil: Storti, Mario Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
dc.journal.title Computer Methods In Biomechanics And Biomedical Engineering
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/10255842.2011.585978
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/10255842.2011.585978


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  • Articulos(INTEC) [1330]
    Articulos de INST.DE DES.TECNOL.PARA LA IND.QUIMICA (I)
  • Articulos(CIMEC) [89]
    Articulos de CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES

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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)