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dc.contributor.authorKELLY, DANIEL
dc.contributor.authorPRENDERGAST, PATRICK JOHN
dc.date.accessioned2009-04-14T17:23:26Z
dc.date.available2009-04-14T17:23:26Z
dc.date.issued2008
dc.date.submitted2008en
dc.identifier.citationVard, J.P., Kelly, D.J., Blayney, A.W. and Prendergast, P.J. `The influence of ventilation tube design on the magnitude of stress imposed at the implant/tympanic membrane interface? in Medical Engineering and Physics, 30, (2), 2008, pp 154-163en
dc.identifier.issn50590
dc.identifier.otherY
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/29148
dc.descriptionPUBLISHEDen
dc.description.abstractThe design of ventilation tubes or grommets is thought to have a considerable influence on their performance. A computational model (finite element method) was used to investigate the significance of four design parameters of a commonly-used design of ventilation tube. The design parameters were: the length of the shaft, the diameter of the flanges, the thickness of the flanges, and the material type. A statistical analysis technique, known as a factorial analysis of variance, was used to examine the importance of the four design parameters on the dynamical behaviour of the middle-ear with the implant in situ and on the magnitude of stress induced at the implant/tympanic membrane interface. We predicted that the ventilation tube alters the frequency response of the middle ear; specifically the shaft length and the thickness of the flanges were found to have a significant effect upon the vibratory pattern at the umbo. A reduced length of tube and an increased size of flange were also found to be significant for minimising membrane stress (both with P < 0.001). Thus design parameters of critical influence on optimising performance were identified.en
dc.description.sponsorshipThis research was entirely funded by an Enterprise Ireland ?Proof-Of-Concept? grant. The authors thank Mr Brian East of Exmoor Plastics Ltd. for supplying ventilation tube device information.en
dc.format.extent154-163en
dc.format.extent272242 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherElsevieren
dc.relation.ispartofseriesMedical Engineering and Physicsen
dc.relation.ispartofseries30en
dc.relation.ispartofseries2en
dc.rightsYen
dc.subjectBiomechanicsen
dc.subjectMedical Engineering Designen
dc.subjectMechanobiologyen
dc.subjectReuter-Bobbinen
dc.titleThe influence of ventilation tube design on the magnitude of stress imposed at the implant/tympanic membrane interfaceen
dc.contributor.sponsorEnterprise Ireland
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/pprender
dc.identifier.rssurihttp://dx.doi.org/10.1016/j.medengphy.2007.03.005


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