Show simple item record

dc.contributor.authorVard, John P
dc.contributor.authorKelly, Daniel J
dc.contributor.authorBlayney, Alexander W
dc.contributor.authorPrendergast, Patrick J
dc.date.accessioned2012-12-20T14:32:16Z
dc.date.available2012-12-20T14:32:16Z
dc.date.issued2008-03
dc.identifier.citationThe influence of ventilation tube design on the magnitude of stress imposed at the implant/tympanic membrane interface. 2008, 30 (2):154-63 Med Eng Physen_GB
dc.identifier.issn1350-4533
dc.identifier.pmid17531521
dc.identifier.doi10.1016/j.medengphy.2007.03.005
dc.identifier.urihttp://hdl.handle.net/10147/263395
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.
dc.language.isoenen
dc.rightsArchived with thanks to Medical engineering & physicsen_GB
dc.subject.meshAnalysis of Variance
dc.subject.meshBiomechanics
dc.subject.meshBiomedical Engineering
dc.subject.meshComputer Simulation
dc.subject.meshFinite Element Analysis
dc.subject.meshHumans
dc.subject.meshMiddle Ear Ventilation
dc.subject.meshModels, Anatomic
dc.subject.meshModels, Biological
dc.subject.meshOtitis Media with Effusion
dc.subject.meshProstheses and Implants
dc.subject.meshProsthesis Design
dc.subject.meshTympanic Membrane
dc.subject.meshVibration
dc.titleThe influence of ventilation tube design on the magnitude of stress imposed at the implant/tympanic membrane interface.en_GB
dc.typeArticleen
dc.contributor.departmentTrinity Centre for Bioengineering, School of Engineering, Trinity College, Dublin, Ireland.en_GB
dc.identifier.journalMedical engineering & physicsen_GB
dc.description.provinceLeinsteren
html.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.


Files in this item

Thumbnail
Name:
Publisher version

This item appears in the following Collection(s)

Show simple item record