Apparatus and method for simulating a human mastoid

H - Electricity – 04 – R

Patent

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H04R 29/00 (2006.01) G01H 1/00 (2006.01) H04R 25/00 (2006.01)

Patent

CA 2212739

An apparatus and method for simulating a human mastoid is disclosed. The apparatus includes a diaphragm (110) having a mass, springiness and damping means (118) sufficient to more closely replicate the impedance of a human head bone and skin overlying the same, than prior art testing devices. In a preferred embodiment, the method includes placing the diaphragm (110) over the central opening (120) of an artificial ear (124) and placing a bone conducting hearing aid (158) on top of the diaphragm (110). A microphone (170) disposed below the opening (120) measures the sound generated by vibration. These measurements provide an indication of whether the bone conduction hearing aid (158) is functioning properly. The apparatus and method are not only easier to use and less expensive than prior art devices and methods, they are also as accurate, if not more accurate.

Appareil et procédé destinés à simuler une apophyse mastoïde humaine. L'appareil comprend une membrane (110) présentant un moyen (118) de masse, d'élasticité et d'amortissement suffisant pour reproduire plus étroitement l'impédance d'un crâne humain et de la peau le recouvrant, par rapport à des dispositifs d'essai actuel. Dans un mode de réalisation préféré, le procédé consiste à placer la membrane (110) sur l'ouverture centrale (120) d'une oreille artificielle (124), et à placer une prothèse auditive (158) ostéoconductrice au-dessus de la membrane (110). Un microphone (170) ménagé au-dessous de l'ouverture (120) mesure le son généré par des vibrations. Ces mesures indiquent si la prothèse auditive (158) ostéoconductrice fonctionne correctement. L'appareil et le procédé sont non seulement plus faciles à utiliser et moins coûteux que les appareils et procédés actuels, mais ils sont également précis, voire plus précis.

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