Introduction - Interacoustics OtoRead Instructions For Use Manual

OtoRead™ Instructions for Use - US

1 Introduction

About this manual
This manual is valid for the OtoRead™ (valid from version 3.20). This product is manufactured by:
1.2 Intended use
The OtoRead™ Otoacoustic Emission Test Instrument is designed to be a screening device for hearing loss
in infants, children, and adults by measuring otoacoustic emissions (OAE).
This instrument is suitable for use in all settings, including hospitals, schools, physicians' offices, and
audiologists' practices. The OtoRead™ is intended to be used by hearing healthcare professionals (i.e. ENT
doctors, audiologists) and/or technicians, neonatal nurses and school nurses who have been trained by a
hearing healthcare professional.
1.3 Definition of OAEs
What are DPOAEs?
Distortion Product Otoacoustic Emissions (DPOAEs) are acoustic signals that can be detected in the ear
canal of a person with normal outer hair cell function, subsequent to stimulation of the auditory system with a
pair of pure tones at frequencies f1 and f2. The resulting emission of interest is the distortion product tone at
the frequency 2f1 - f2.
What are TEOAEs?
Transient Evoked Otoacoustic Emissions (TEOAEs) are acoustic signals that can be detected in the ear
canal of a person with normal outer hair cell function, subsequent to stimulation of the auditory system with a
series of wideband clicks.
What do Otoacoustic Emissions results tell us?
Available evidence suggests that otoacoustic emissions (OAEs) are generated by the cochlea's outer hair
cells, and that the presence of OAEs is an indication that the outer hair cells are normal. Although OAE test
data provide no indication of inner hair cell function, or of hearing ability, current research indicates that the
majority of hearing-impaired individuals will be identified by a simple OAE test. Patients who fail to generate
OAEs should be rescreened and/or referred for additional audiological testing.
TM
How does the OtoRead
TM
The OtoRead instrument generates a series of test tones, directs them into the ear canal, and then
measures the level of the DPOAE tone generated by the cochlea. By using different test frequencies, the
TM
OtoRead device provides an estimate of outer hair cell function over a wide range of frequencies.
Interacoustics A/S
Audiometer Allé 1
5500 Middlefart
Denmark
Tel.: +45 6371 3555
Fax: +45 6371 3522
E-mail: info@interacoustics.com
Web: www.interacoustics.com
device measure DPOAEs?
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