Design and Experimental Analysis of a New Malleovestibulopexy Prosthesis Using a Finite Element Model of the Human Middle Ear

2015 ◽  
Vol 66 (1) ◽  
pp. 16-27 ◽  
Author(s):  
Luis A. Vallejo Valdezate ◽  
Antonio Hidalgo Otamendi ◽  
Alberto Hernández ◽  
Fernando Lobo ◽  
Elisa Gil-Carcedo Sañudo ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Middle Ear ◽  
Experimental Analysis ◽  
Element Model ◽  
Human Middle Ear

Clinical Applications of a Finite-Element Model of the Human Middle Ear

2001 ◽  
Vol 30 (06) ◽  
pp. 340 ◽  
Author(s):  
Sam J. Daniel ◽  
W. Robert J. Funnell ◽  
Anthony G. Zeitouni ◽  
Melvin D. Schloss ◽  
Jamie Rappaport
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Middle Ear ◽  
Element Model ◽  
Clinical Applications ◽  
Human Middle Ear

The effect of actuator and its coupling conditions on eardrum-stimulated middle ear implants: A numerical analysis

2016 ◽  
Vol 230 (12) ◽  
pp. 1074-1085 ◽  
Author(s):  
Dan Xu ◽  
Houguang Liu ◽  
Lei Zhou ◽  
Gang Cheng ◽  
Jianhua Yang ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Middle Ear ◽  
Element Model ◽  
Design Parameters ◽  
Optimal Position ◽  
Coupling Conditions ◽  
Middle Ear Implants ◽  
Human Middle Ear ◽  
Hearing Compensation

Consisting of the actuator and coupling layer, a finite element model of the human middle ear was used to analyze the effect of the actuator and its coupling conditions on the performance of the eardrum-stimulated middle ear implants. This model which was based on the right ear of a healthy adult was built via microcomputed tomography imaging and the technique of reverse engineering. Based on this finite element model, the linear viscoelasticity of the human middle ear soft tissues and three-layer structure of the eardrum pars tensa which was orthotropic were considered. The validity of the model was verified by comparing the model calculated results with experimental data. After that, the influence of the three main design parameters of the actuator and two aspects of the coupling layer were investigated by the finite element model. The results show that (1) the manubrium tip is the optimal position for the actuator to stimulate; (2) the increased cross-section of the actuator would worsen its hearing compensation performance, especially in the low frequencies; (3) both the patients’ residual hearing and the actuator’s hearing compensation performance at high frequencies will be deteriorated with the increase in the actuator’s mass; and (4) a coupling layer with a small Young’s modulus and an area approximating 80% of the eardrum would reduce the stress of the eardrum effectively.

Parameter study on a finite element model of the middle ear / Parameterstudie an einem Finite-Elemente-Modell des Mittelohrs

2010 ◽  
Vol 55 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Marc Hoffstetter ◽  
Florian Schardt ◽  
Thomas Lenarz ◽  
Sabine Wacker ◽  
Erich Wintermantel
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Middle Ear ◽  
Element Model ◽  
Parameter Study ◽  
Finite Elemente
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