infants and geriatric patients. It is especially indicated for use in testing individuals for whom behavioral audiometric res-
ults are deemed unreliable, such as infants, young children, and cognitively impaired adults.
Auditory Brainstem Response:
The Type 1077 ABR module is especially intended for infants from 34 weeks (gestational age) up to 6 months of age.
When the device is used to screen infants, they should be asleep or in a quiet state at the time of screening.
The device is intended for use by audiologists, ENT's and other healthcare professionals.
Note
•
There are no known contra-indications for use of Type 1077 device and accessories.
Note
•
The 1077 device comes in various configurations. The Alpha OAE+ device, which is a 1077 device, is only avail-
able in an OAE configuration.
Important
•
Natus Medical Denmark ApS does not guarantee the accuracy of the test results or the tests themselves, if
accessories other than those supplied by Natus Medical Denmark ApS are used for this device (i.e. eartips).
1.5
Physical operating principle
Alpha OAE+ uses DPOAE (Distortion Product Otoacoustic Emissions) and TEOAE (Transiently Evoked Otoacoustic Emis-
sions) technologies. Otoacoustic Emissions measure cochlear mechanics and indicate whether the cochlea is functioning
correctly or not. Emission strength usually decreases with age or hearing impairment.
1.6
About this manual
Important
•
Please note that menu selections and screen shots in this manual may not reflect the configuration of
your test device.
This manual contains a description of the main functions of Alpha OAE+.
We recommend that you make yourself familiar with the following issues:
Installation
, and
describes how to unpack Alpha OAE+, prepare and con-
nect cables, and set up the device.
Safety
This manual contains information and warnings which must be followed to ensure the safe performance of Alpha OAE+.
Local government rules and regulations, if applicable, should also be followed at all times.
Please see the overview of device labeling in
and read the warning notes in
Otometrics - MADSEN Alpha OAE+
7
1 Introduction