otometrics MADSEN Capella User Manual
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otometrics MADSEN Capella User Manual

Diagnostic otoacoustic emissions (oae) system
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MADSEN Capella and the
OTOsuite Otoacoustic
Emissions module
User Guide
Doc. No. 7-50-1450-EN/04
Part No. 7-50-14500-EN

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Summary of Contents for otometrics MADSEN Capella

  • Page 1 MADSEN Capella and the OTOsuite Otoacoustic Emissions module User Guide Doc. No. 7-50-1450-EN/04 Part No. 7-50-14500-EN...
  • Page 2 Copyrightnotice The manufacturer authorizes GN Otometrics A/S to publish manuals approved and released by the manufacturer. No part of this documentation orprogram may be reproduced, stored in a retrieval system, ortransmitted, in any form orby any means, electronic, mechanical, photocopying, recording,or otherwise,without the prior written consent of GN Otometrics A/S.

  • Page 3: Table Of Contents

    Measuring Transient OAEs and Spontaneous OAEs 10 Service, Cleaning and Maintenance 11 Other references 12 Technical Specifications 13 Manufacturer 14 Responsibility of the manufacturer 15 Warning notes 16 Notes on EMC (Electromagnetic Compatibility) 17 Definition of symbols Otometrics - MADSEN Capella...

  • Page 4: Device Description

    Capella. Capella cannot be used without OTOsuite software. Intended Use The intended use of MADSEN Capella and the OTOsuite Otoacoustic Emissions module is for the screening and diagnosis of patients using otoacoustic emission techniques. Capella, used together with the Otoacoustic Emissions module, is inten- ded for use as an aid in diagnosing hearing related disorders, and as a tool in the evaluation of conditions which affect otoacoustic emission responses to auditory stimuli.

  • Page 5: Assembling Capella

    Caution • Install OTOsuite on the PC before you connect to MADSEN Capella from the PC. 1. Ensure that OTOsuite has been installed on the PC. For instructions on installing OTOsuite, see the OTOsuite Installation Guide, which you can find on the OTOsuite installation medium (disk or memory stick).
  • Page 6 2. If the probe tip does not fit securely on the probe, remove the probe tip and reorient it. 3. Press lightly on the tabs to snap them into place. The tabs should be flush with the probe body. Otometrics - MADSEN Capella...
  • Page 7 Eartips are to be used topically over intact skin only. Do not apply over infected skin. Risk of Sensitivity All eartips sold by Otometrics are made of hypo-allergenic material. These products do not contain latex. Caution Using the wrong size tip can lead to improper seal, resulting in noise issues or decreased stimulus sound •...

  • Page 8: Preparing For Testing

    Only individuals trained in these procedures should conduct the insertion of the eartip. • It is important that hygienic precautions are taken to protect the client from cross-infection. Be sure to follow any established infection control procedures for the setting in which you are working. Otometrics - MADSEN Capella...

  • Page 9: Measuring Otoacoustic Emissions With Capella

    DP-gram During acquisition, Capella can test single or multiple DPOAE frequency pairs according to user specifications. The rela- tionship between the two stimulation frequencies, the F2/F1 ratio, can be specified by selecting one frequency and the Otometrics - MADSEN Capella...
  • Page 10  screen contain the same basic elements: DP-gram Probe Fit - Time A. Control panel graph DP-gram DP I/O Probe Fit - Frequency B. Result graph: graph graph Spectrum Legend Overlays Data graph box/ box/ table Otometrics - MADSEN Capella...
  • Page 11 Also, OTOsuite allows you to measure a maximum of 20 levels. If you enter a step size that will result in a larger num- ber of levels, a message will be displayed in the dialog box. If you close the dialog box while the error symbol is displayed, your changes will not be saved. Otometrics - MADSEN Capella...
  • Page 12 L1 and L2 are the measured levels of the pure tone primaries that were presented. The measured level may differ from the selected level if the probe was occluded or if the system was not properly calibrated or due to standing waves. DP1 ((2*F1) - F2) and DP2 ((2*F2) - F1) are the resulting distortion products. Otometrics - MADSEN Capella...
  • Page 13 : If the probe fit test fails and you keep the measurement, "Bad Probe Fit" will appear instead of an overall result. Blank : If there is no acceptance criteria for a measurement button and the probe fit is OK, no overall result will be dis- played. Otometrics - MADSEN Capella...
  • Page 14 Click on the point in the graph. The cross hairs in the DP-gram indicate the current point. Data for Spectrum Data the current point is displayed in the graph and in the table. The DP Data table Otometrics - MADSEN Capella...
  • Page 15 The selected historical curves are displayed in the Result graph, as well as the Spectrum graph and the Probe Fit graphs, for easy comparison to the current curve in the current session. Otometrics - MADSEN Capella...

  • Page 16: Measuring Transient Oaes And Spontaneous Oaes

    Capella performs Synchronized Spontaneous OAE testing. For the test to be synchronous, some stimulation is required to provide a time marker. This time marker also serves the purpose of providing phase coherence for the spontaneous Otometrics - MADSEN Capella...
  • Page 17 In TEOAE, the data can be displayed as either a curve graph or a bar graph. Each bar in the bar graph displays the average for the band around the specific frequency noted below the bar. Otometrics - MADSEN Capella...
  • Page 18 The sig- nal is calculated as (A+B)/2 and noise is calculated as (A-B)/2. A and B buffers • view displays one curve for the A buffer and one for the B buffer. Otometrics - MADSEN Capella...
  • Page 19 The number of Accepted and Rejected sweeps gives an indication of the quality of the measurement conditions. Time The duration of the measurement. Data table - SOAE Data SOAE Criteria table lists all SOAEs that have been identified according to the minimum SNR selected in the Otometrics - MADSEN Capella...

  • Page 20: Service, Cleaning And Maintenance

    Do not use a defective device. Warning • No modification of this equipment is allowed. Cleaning Use a soft, slightly damp cloth with a small amount of detergent to clean the device. Otometrics - MADSEN Capella...

  • Page 21: Other References

    Capella should be calibrated by a service technician once a year or when the probe and amplifier are replaced. OTOsuite Software Upgrades To obtain the latest version of OTOsuite, you can download the software from www.otometrics.com, or contact your local distributor.
  • Page 22 9.78125 Hz Frequency Range 500 Hz - 10,000 Hz TEOAE Mode FFT Resolution 39.125 Hz Acquisition window length 25.56 ms Acquisition frequency Range 450 Hz - 5,000 Hz 12.8 Accessories • ER-10D OAE Probe • USB cable Otometrics - MADSEN Capella...

  • Page 23: Manufacturer

    9 mm blue 8-68-32306 10 mm green 8-68-32307 Eartips - Foam (See also Eartips ► 7 14 mm yellow 8-68-32308 Manufacturer GN Otometrics A/S Hoerskaetten 9, 2630 Taastrup Denmark +45 45 75 55 55 +45 45 75 55 59 www.otometrics.com Otometrics - MADSEN Capella...

  • Page 24: Responsibility Of The Manufacturer

    7. Only individuals who are trained in the use of the device and its principles should use MADSEN Capella. All results should be reviewed by a certified audiologist or licensed physician who has knowledge of Otoacoustic Emissions.
  • Page 25 4. When you connect other electrical equipment to MADSEN Capella, remember that equipment that does not comply with the same safety standards as MADSEN Capella can lead to a general reduction in the system's safety level. 5. Turn off and disconnect all parts of the equipment when performing maintenance and cleaning.

  • Page 26: Notes On Emc (Electromagnetic Compatibility)

    MADSEN Capella. Guidanceand manufacturer's declaration - electromagnetic emissions for all equipment and systems MADSEN Capella isintended for use in the electromagnetic environment specified below. The user of MADSEN Capella should ensure that it is used in such an environment.
  • Page 27 Guidanceand manufacturer's declaration - electromagnetic immunity - for equipment and systems that are NOT life-supporting MADSEN Capella isintended for use in the electromagnetic environment specified below. The user of MADSEN Capella should ensure that it is used in such an environment.

  • Page 28: Definition Of Symbols

    Recommended separation distances between portable and mobile RF communications equipment and MADSEN Capella The MADSEN Capella is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the MADSEN Capella can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equip- ment (transmitters) and the MADSEN Capellaas recommended below, according to the maximum output power of the communications equipment.
  • Page 29 This requirement applies in the European Union. Do not dispose of these products as unsorted municipal waste. You can return your device and accessories to Otometrics, or to any Otometrics supplier. You can also con- tact your local authorities for advice on disposal.

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