Recorders, Physiologic, Evoked Potential, Auditory

Definition : Evoked potential physiologic recorders designed for detecting, amplifying and recording the brain's bioelectric response (i.e., the evoked potential, EP) to auditory external stimuli. These recorders typically consist of a detachable electrode usually placed on the scalp at the vertex and a reference electrode placed on the earlobe; signal amplifiers; filters (to suppress interference); memory (e.g., electronic or optical/magnetic disc); and a display. The non-stimulated ear is masked with white noise whose intensity is above the hearing level. Auditory EP recorders usually include capabilities to deliver external stimuli (e.g., clicks) at an appropriate repetitive level to elicit the bioelectric response needed for recording. Auditory EP recorders are mainly used in studies intended to diagnose the function of the auditory pathways and to differentiate coma due to metabolic factors from a coma due to structural damage. They are also used for screening the auditory function in infants.

Entry Terms : "Auditory Evoked-Potential Recorders" , "Audiometric Evoked-Potential Units" , "Recorders, Graphic, Evoked Potential, Auditory"

UMDC code : 16303

U.S.companies only
Suppress Subsidiary Companies

1-4 of 4 Match(es).

Cadwell Industries Inc

Company Type: Parent

Cadwell recently debuted the Easy Ambulatory EEG and PSG system with the NEW patent pending Q-Video Mobile recording system – This new video recording system synchronizes video with ambulatory EEG and PSG recordings collected outside of the hospital. Patients can move freely while the Easy system hardware captures multiple EEG and PSG channels with time synchronized video to assist physicians in identifying events.


Company Type: Parent

Natus Medical Inc

Company Type: Parent

Natus is a leading provider of healthcare products used for the screening, detection, treatment, monitoring and tracking of common medical ailments in newborn care, hearing impairment, neurological dysfunction, epilepsy, sleep disorders, and balance and mobility disorders.

Noraxon USA Inc

Company Type: Parent

As muscles contract, microvolt level electrical signals are created within the muscle that may be measured from the surface of the body. A procedure that measures muscle activity from the skin is referred to as surface electromyography (SEMG).

1-4 of 4 Match(es).


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