Configurable Systems for Evoked Response Audiometry

Product catalog summary

Overview: The document discusses the importance of determining frequency-specific hearing thresholds for auditory evoked potentials measurements, crucial for hearing aid fitting and cochlear implantation decisions. It introduces various methods and technologies used in this field.

Chirp-ABR: This method uses Chirp-Stimulus to synchronously excite neurons across the basilar membrane, allowing for objective assessment of hearing thresholds in specific frequency ranges using Low-Chirp (100-800 Hz) and High-Chirp (1 kHz-10 kHz).

Notched-Noise-ABR: Utilizes masking noise with a spectral notch, embedding a tone pulse within the notch to desynchronize all but the frequency area of the tone pulse, providing frequency-specific evoked potentials.

Auditory Steady-State Response (ASSR): Involves amplitude-modulated continuous tones, where the carrier frequency's amplitude varies sinusoidally, eliciting a periodic response signal. Statistical tests are used for objective detection of the evoked response.

Frequency Specific Measurement: The document highlights the use of Acoustic Brain Responses (ABR) as a diagnostic tool for detecting disorders from the peripheral hearing organ to the neural pathway. The "Corona" ABR device is introduced, offering one or two-channel versions and various methods for frequency-specific threshold determination, including Notched-Noise techniques, ASSR, and Chirp-ABR.

Corona ABR System: Described as a configurable system where parameters like stimulus rate, polarity, and analysis time can be selected. Measurement sequences can be stored and reused, and the system can be upgraded with additional options.

Technical Specifications: The document provides detailed technical data, including maximum stimulus levels, filter ranges, repetition rates, stimuli types, preamplifier sensitivity, input impedance, noise levels, ADU channels, resolution, acquisition rate, and analysis times for various tests.

Contact Information: Pilot Blankenfelde GmbH's contact details are provided for further inquiries.

Catalog excerpts

Configurable Systems for Evoked Response Audiometry-1

Configurable Systems for Evoked Response Audiometry Pilot Blankenfelde GmbH

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Configurable Systems for Evoked Response Audiometry-2

Frequency specific measurement of hearing thresholds The objective determination of frequency specific hearing thresholds gains increasing importance within auditory evoked potentials measurements. It is crucial to know the exact threshold curve for hearing aid fitting purposes as well as for cochlear implantation decisions. Nowadays, different methods are available. Chirp-ABR The Chirp-Stimulus generates an optimized synchronous excitation of neurons in all regions of the basilar membrane. The stimulus structure also allows modifications to excite predefined regions in the Cochlea. The application...

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Configurable Systems for Evoked Response Audiometry-3

Corona – free configurable ABR-System 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. Stimulus rate, stimulus polarity, analysis time and other parameters can be selected. Measurement sequences can be stored and re-used for other measurements. 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. The...

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Configurable Systems for Evoked Response Audiometry-4

Technical Data PREAMPLIFIER SENSITIVITY 300 µVss INPUT IMPEDANCE INPUT NOISE LEVEL MAX. STIMULUS LEVEL Stimulation 100 dBHL Masking White Noise max.: 70 dBHL ANALYSIS TIME Screening-ABR ABR VEMP/MLR LLR System Modules STIMULI Click Gauss Burst Wave ASSR BERA Notched-Noise-ABR Chirp – ABR ASSR Screening-ABR LLR VEMP MLR Bone conduction (Click) ECochG MMN Wave – arbitrary stimuli Trigger IN/OUT 2. Channel © Pilot Blankenfelde medizinisch elektronische Geräte GmbH, Blankenfelde · Stand 10/2008 · Layout: pantamedia communications GmbH, Berlin

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