The University of Dublin | Trinity College -- Ollscoil Átha Cliath | Coláiste na Tríonóide
Trinity's Access to Research Archive
Home :: Log In :: Submit :: Alerts ::

TARA >
School of Engineering >
Mechanical & Manufacturing Eng >
Mechanical & Manufacturing Eng (Scholarly Publications) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/29148

Title: The influence of ventilation tube design on the magnitude of stress imposed at the implant/tympanic membrane interface
Author: KELLY, DANIEL
PRENDERGAST, PATRICK JOHN
Sponsor: Enterprise Ireland
Author's Homepage: http://people.tcd.ie/pprender
Keywords: Biomechanics
Medical Engineering Design
Mechanobiology
Reuter-Bobbin
Issue Date: 2008
Publisher: Elsevier
Citation: Vard, 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 154-163
Series/Report no.: Medical Engineering and Physics
30
2
Abstract: The 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.
Description: PUBLISHED
URI: http://dx.doi.org/10.1016/j.medengphy.2007.03.005
http://hdl.handle.net/2262/29148
ISSN: 50590
Appears in Collections:Mechanical & Manufacturing Eng (Scholarly Publications)

Files in This Item:

File Description SizeFormat
Vard - 2008 - MEP.pdfpublished (author copy) peer-reviewed265.86 kBAdobe PDFView/Open


This item is protected by original copyright


Please note: There is a known bug in some browsers that causes an error when a user tries to view large pdf file within the browser window. If you receive the message "The file is damaged and could not be repaired", please try one of the solutions linked below based on the browser you are using.

Items in TARA are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback