• Corti OAE Hearing Screener from Grason-Stadler

    CORTI

    DPOAE AND TEOAE DEVICE

    The GSI Corti™ is a portable, battery-operated diagnostic and screening instrument that measures Otoacoustic Emissions (OAE) in infants, children, and adults. Meeting all recommended hearing screening protocols, the Corti offers the ability to rapidly screen newborns and perform diagnostic OAE testing. The Corti is accurate, fast, easy-to-use and reliable.

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GSI Cort Video

FREQUENTLY ASKED QUESTIONS

Q. Does the GSI Corti automatically start testing when the probe seal is obtained?
A. Yes, after the probe is placed in the ear canal and the “Test” button is pressed, the unit automatically runs through a series of self-checks to ensure that a seal is obtained and the noise floor is low, and conducts an in-the-ear signal calibration test. This process happens very quickly and often takes less than a second. The test will then begin automatically.

Q. What does a “Pass” or “Refer” indicate on the Corti?
A. The presence of otoacoustic emissions suggests normal outer hair cell function. However, a Pass result is not an indication that the full auditory system is normal. A full audiologic evaluation should be administered if concerns about hearing sensitivity persist. A Refer result indicates the outer hair cell function is not normal. A Refer result should not be assumed to be an indicator of a lack of auditory function or the presence of pathology. Refer results should be repeated. If the Refer result persists, full audiologic diagnostic testing and/or medical evaluation should be conducted.

Q. Can the Corti be used in an environment with background noise?
A. It is ideal to use the Corti in a quiet environment. For noisier environments, the Corti’s unique patented Adaptive Artifact Rejection Algorithm optimizes responses in variable noise. Every sample is categorized and sorted as the data is collected. This method allows data to be collected successfully in higher noise environments, reducing false referrals.

Q. Can the screening protocols of the Corti be modified?
A. No, the Corti screener includes two screening protocols offering different averaging times. The remaining screening protocol criteria are fixed.

Q. What is the battery life of the Corti?
A. The battery life is 20 hours of continuous power “on” time. The charge time for a fully depleted battery is four hours. For convenience, the optional cradle will charge the unit battery whenever the unit is placed in it.

  • Corti feature training

    MINIMAL TRAINING REQUIRED

    A complete otoacoustic emissions evaluation, from turning on the system to evaluating both ears, requires only three button presses. Easy navigation provides intuitive operation that ensures confidence in hearing testing with minimal training. The color display and friendly screen prompts will guide the operator through functions such as selecting a protocol and probe placement.

  • Corti feature noise

    CUT OUT NOISE

    The patented noise rejection algorithm smartly assesses the response in variable background noise, ensuring test accuracy and saving valuable test time in noisy environments. Otoacoustic emissions testing can be accomplished in noise levels as high as 55 - 65 dB SPL (A) without compromising accuracy.

  • Corti OAE screening features speed

    FAST AS 8 SECONDS

    DPOAE testing in a single ear can be completed as quickly as 8 - 16 seconds. The Corti provides pre-defined and user-defined protocols to address multiple environments. Patients with PE tubes may be tested.

An infant being evaluated for otoacoustic emissions with the GSI Corti
 

RAPID OAE RESULTS

Otoacoustic emissions screening can be completed in seconds per ear, saving valuable time, increasing accuracy and reducing the risk of a newborn waking during screening. No interpretation is required as the Corti’s DP and TE screening protocols quickly result in a Pass or Refer result.

KEY OAE DEVICE FEATURES 

  • 1. FLEXIBLE PROTOCOLS

    With the Corti OAE hearing screener, easily change between screening and diagnostic protocols. 

  • 2. AUTO START CONFIDENCE

    The Corti automatically starts hearing screening after ensuring probe is placed properly and conditions are ready.

  • 3. SIMPLE OPERATION

    With only three button presses, otoacoustic emissions testing is completed in both ears. The four button design ensures quick screening and diagnostic testing with minimal training.

  • GSI Corti OAE Device Features
  • 4. CRADLE CONVENIENCE

    The Corti is always charging and ready for name and data transfer when placed in the cradle between tests.

  • 5. LOW COST EAR TIPS

    Fit all sizes of ears, from infant to geriatric, with the Corti low cost, single use ear tips. Ear tip sizes range from 3 mm to 15 mm. Disposable foam tips are available.

  • 6. NO OAE PROBE CLEANING

    With a unique design, the OAE probe never requires cleaning, saving valuable time.

An audiologist testing OAEs on a patient

GIVING YOU THE FLEXIBILITY

The Corti provides six different configuration options that meet the needs for virtually all clinic environments: three options for screening and three options for diagnostic testing. Screening options include DP, TE or DP plus TE screening. Diagnostic configurations include DP, TE, or DP plus TE diagnostics.

A clinician reviewing otoacoustic emissions test data

OTOACOUSTIC EMISSIONS EMR MADE EASY

Corti OAE results are easily transferred into GSI Suite, where audiometric, tympanometric, and OAE results may be combined into a comprehensive report. Normative data, SNR graphs, and numeric details assist the clinician in explaining the results to patients and their family members.

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