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Letters to the Editor
April 1999

A Few Issues About the Bionic Ear

Arch Otolaryngol Head Neck Surg. 1999;125(4):477-478. doi:

In reply

We thank Ahmadizadeh for his interest in our model.1 We agree that our model is not an exact physiological replica of the human external auditory canal, eustachian tube, or middle ear space. What we created is a practical model that resembles the human form as nearly as possible and can be tested in day-to-day activities involving water. Previous models2,3 addressing this topic were tested in a laboratory setting and focused only on the tympanic membrane, ventilation tube, eustachian tube, and the pressure involved in promoting water entry into the middle ear. In addition, our goal was to show the protective mechanisms of the shape of the human head, auricle, and external auditory canal in relation to practical water exposure and the associated pressure changes.

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