Journal Article

Testing a Method for Quantifying the Output of Implantable Middle Ear Hearing Devices

Chien, W., Ravicz, M.E., Merchant, S.N., Rosowski, J.J.

2007

Overview

This report describes tests of a standard practice for quantifying the performance of implantable middle ear hearing devices (also known as implantable hearing aids). The standard and these tests were initiated by the Food and Drug Administration of the United States Government. The tests involved measurements on two hearing devices, one commercially available and the other home built, that were implanted into ears removed from human cadavers. The tests were conducted to investigate the utility of the practice and its outcome measures: the equivalent ear canal sound pressure transfer function that relates electrically driven middle ear velocities to the equivalent sound pressure needed to produce those velocities, and the maximum effective ear canal sound pressure. The practice calls for measurements in cadaveric ears in order to account for the varied anatomy and function of different human middle ears.

• Publisher: Karger,S. Karger AG
• Subject: Acoustics / Adult / Aged / Aged, 80 and over / Audiology / Biological and medical sciences / Cadaver / Diseases of the ear / Ear Canal - physiology / Ent and stomatology / Hearing aids / Humans / In Vitro Techniques / Measurement techniques / Medical sciences / Middle Aged / Models, Biological / Original Paper / Ossicular Prosthesis / Otorhinolaryngology. Stomatology / Pressure / Product testing / Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) / Round Window, Ear - physiology / Stapes - physiology / Temporal Bone - physiology / Transplants & implants