Chapter 1: introduction, About this manual – Welch Allyn REF 29400 User Manual

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Welch Allyn OAE Hearing Screener Directions for Use 705353 Rev E

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Chapter 1: Introduction

The Welch Allyn OAE Hearing Screener measurement system performs otoacoustic emissions
tests. Using a combination of hardware and software, the Welch Allyn OAE Hearing Screener
produces a controlled acoustic signal in the ear canal and measures the resulting evoked
emission that is generated by outer hair cells in the cochlea. The system collects and averages
data samples until specified measurement parameters are achieved. For distortion product
otoacoustic emissions (DPOAEs), the DP and noise floor amplitudes appear on the LCD. A pass
or refer result is assigned at the end of the test based on comparison of the patient’s OAE
response to normalized data. Users can view and analyze the results.

The Welch Allyn OAE Hearing Screener is a medical device that produces information about the
auditory system of a patient. This information is then available for medical diagnosis or screening.
Therefore:


The Welch Allyn OAE Hearing Screener

is

intended for use by a health care professional or
a technician who is trained and supervised by a
health care professional or accredited
organization.

About this manual

This manual gives step by step instructions on how to perform OAE tests and view results on the
Welch Allyn OAE Hearing Screener.

Conventions

The Welch Allyn OAE Hearing Screener manual uses specific font styles to
identify aspects of the system operation.

References to the buttons on the front label of the Welch Allyn OAE Hearing
Screener are always typed in all caps.

Labels referring to the names of the connectors that are on the front label of
the Welch Allyn OAE Hearing Screener are typed in bold text.

Help

For additional assistance, please contact Welch Allyn Technical Support at

1-800-535-6663.










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