Verification of cochlea behaviour between numerical approach and experiment measurements

Du, X. and Brett, P. N. and Assadi, M. and Coulson, C. and Proops, D. and Reid, A. (2011) Verification of cochlea behaviour between numerical approach and experiment measurements. In: 18th Annual International Conference on Mechatronics and Machine Vision in Practice (M2VIP 2011), 6-7 Dec 2011, Brisbane, Australia.


The cochlea is the principal part of the inner ear, where mechanical vibrations (forced by sound waves) are transformed into electrical neural signals. Determination of the dynamic behaviour and properties of the hearing organ is the key to de-velop successful new hearing aid devices and hearing implants. In this paper, unique Third Window (TW) experimental measurements are presented to verify the cochlear dynamics with a numerical mathematical model. This technique enables the dynamical behaviour at different points to be determined within the cochlea. An integral part of the method is the application of a micro-surgical robotic drill that enables removal of bone tissue while leaving a consistent window of the delicate endosteal membrane intact such that it behaves as the micro-diaphragm of a pressure transducer, responding to disturbances induced within the cochlea. The background of the robotic drill is fundamental to this study and is described brief-ly in the paper. The method to measure disturbances of the membrane is described leading to results describing behaviour that are also reflected in a mathematical simulation model that can be used to predict power levels and reinforce the under-standing of behaviour.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2011, Mechatronics and Machine Vision in Practice. All rights reserved.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 13 Jul 2017 04:48
Last Modified: 15 Aug 2017 00:33
Uncontrolled Keywords: cochlea, experiment measurements, micro-surgical robotic drill
Fields of Research (2008): 09 Engineering > 0903 Biomedical Engineering > 090304 Medical Devices
09 Engineering > 0903 Biomedical Engineering > 090302 Biomechanical Engineering

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