Eclipse Additional Information Page 15
3 EP15/25
3.1 About EP15/25 Module
The Eclipse EP15 and EP25 are intended for use in the electrophysiological evaluation, documentation and
diagnosis of ear disorders in humans. EP15/EP25 is a 2 channel evoked potential system that allows for re-
cording waveforms that can be used for screening and diagnostic applications.
The EP15 allows for the recording of ABRs (Auditory Brainstem Responses) while the EP25 allows for re-
cording ABRs, middle and late latency potentials. The target population for EP15 and EP25 includes all
ages.
The EP 15/25 unit is capable of recording a variety of auditory evoked potentials, but because of its popular-
ity and importance, the auditory brainstem response (ABR) is used as the primary example of EP15/25 use
and in the terminology describing more general applications. The data acquisition of the ABR recordings
takes place from the surface electrodes mounted at specific recording points on the patient.
The analogue ABR recordings are amplified in the external Preamplifier connected to the electrodes. The
amplified analogue ABR recordings are converted into a digital signal in the ADC (Analog to Digital Con-
verter) inside the Eclipse. The digital ABR recordings undergo data processing handled by the PC to improve
the ABR recordings. The ABR-recordings are displayed on the monitor for the operator for further examina-
tion and diagnosis. All ABR recordings are stored on the laptop or desktop computer hard drive for later ex-
amination and diagnosis.
The EP15/EP25 module contains the following default protocols where VEMP is described in a separate
chapter.
NOTICE
Protocols not included by your license are not visible when the Eclipse is connected.
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