The measurement of Acoustic Brain Responses (ABR) is a basic diagnostic tool in the daily audiologic routine. ABR can be used to detect disorders from the peripheral hearing organ to the neural pathway.
Especially to meet these demanding applications in clinics and private practices the ABR device "Corona" was been developed. One or two channel versions are offered to match different requirements.
Besides standard ABR, middle latency potential (MLP) and late response measurements, methods for the frequency specific threshold determination are available, including Notched-Noise techniques, ASSR and Chirp-ABR.
Furthermore, bone conduction stimulation and VEMP-application are possible as well as other special options.
The devices are easy to use because of a user friendly handling and the availability of all necessary parameters.
Corona – free configurable ABR-System Stimulus rate, stimulus polarity, analysis time and other parameters can be selected. Measurement sequences can be stored and re-used for other measurements.
The universal concept allows to grade up the system with additional options at any time.
|Max. Stimulus Level|
|Stimulation||100 dB HL|
|Masking||70 dB HL|
|ABR||30 Hz - 3000 Hz|
|150 Hz - 3000 Hz|
|MLR||30 Hz - 300 Hz|
|VEMP||90 Hz - 300 Hz|
|LLR||0,3 Hz - 30 Hz|
|Repition Rate||0,2 Hz-90 Hz|
|Gauss||2 ms (0,5; 1; 2; 3; 4 kHz)|
|Burst||320 ms (0,5; 1; 2; 3; 4 kHz)|
|Wave||Arbitrary stimulus in wav-file|
(carrier: 0,5; 1; 2; 4 kHz; modulation 80 - 90 Hz)
|PreAmplifier Sensitivity||300 µVss|
|Input Impendace||10 MOhm|
|Input Noise Level||< 0,8 µV|
|ADU-Acquisition Rate||20 kHz|
|Arbitrary System Modules||BERA|
|Bone conduction (Click)|
|Wave – arbitrary stimuli|