Related Manuals for otometrics MADSEN Capella
Summary of Contents for otometrics MADSEN Capella
- Page 1 Cochlear Emissions Analyzer User Manual Doc no. 7-26-5500/11 Part no. 7-26-550 0 4 5 9...
- Page 2 Printed in Denmark by GN Otometrics A/S, Denmark All information, illustrations, and specifications in this manual are based on the latest product information available at the time of publication. GN Otometrics A/S reserves the right to make changes at any time with- out notice.
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Page 3: Table Of Contents
2.2.4 Installation........................14 Care and maintenance ......................15 2.3.1 Probe..........................15 2.3.2 Eartips ..........................17 2.3.2.1 Disposal ......................17 2.3.2.2 Portable use ....................17 2.3.3 Hardware platform ....................... 18 Fuse replacement ........................18 Equipment failure ........................19 GN Otometrics A/S... - Page 4 DPOAE: DP-gram ........................32 DPOAE: Input/Output........................ 35 SOAE............................36 Tympanometry .......................... 37 Importing old Celesta files......................38 Comments ..........................38 4.10 User configuration ........................38 4.11 Auto sequence........................... 39 4.12 Compare............................. 40 4.13 Printing measurement results and comments ................. 41 GN Otometrics A/S...
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Page 5: Introduction
The CAPELLA Cochlear Emissions Analyzer is the most recent addi- tion to the comprehensive line of audio diagnostic instrumentation from GN Otometrics. Capella is a PC-based system which runs under Microsoft® Windows™, either together with the NOAH/PAX soft- ware platform, or as a self-contained program. In addition to the main unit containing the hardware, Capella consists of separate soft- ware modules, this documentation and accessories. -
Page 6: Applications Of Capella
Although DPOAE's are somewhat more complex to elicit and analyze than TEOAE's, they may have greater clinical utility for some applications. Capella currently measures Spontaneous, Transient, and Distortion Product Otoacoustic Emissions, using synchronous time averaging (where applicable), correlation techniques and FFT frequency analy- GN Otometrics A/S... - Page 7 No electrodes are required. No discomfort to the patient. Sig- nal delivery and OAE response measurement are achieved using a small probe held in place by a soft, disposable eartip. Sensitivity to cochlear function Useful in the differential diagnosis of cochlear and retrococh- GN Otometrics A/S...
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Page 8: The Noah Fitting Platform
NOAH integrates client records, audiological data and the dedicated fitting modules from various hearing instrument manufacturers. Digitally programmable hearing instruments using different tech- nologies and different programming devices are available from a number of manufacturers. NOAH provides a common software GN Otometrics A/S... -
Page 9: About This Manual
System requirements Recommended IBM® or IBM compatible PC with the following: 32 MB RAM Microsoft Windows 95 or 98 Pentium processor VGA graphics adapter Mouse Color printer 1 free COM port PC noise level under 35 dB (A) GN Otometrics A/S... -
Page 10: Software Installation
Capella hardware platform - see next chap- ter. If not running NOAH, start Capella by double-clicking on the NOAH icon in the directory where you have installed Capella, or on the Win- dows desktop if you have made a short cut. GN Otometrics A/S... -
Page 11: The Capella Hardware
Capella is marked with this symbol to indicate compli- ance with Type B requirements of EN 60601-1. This class of equipment is allowed in domestic estab- lishments when used under the jurisdiction of a health care professional. GN Otometrics A/S... -
Page 12: Safety Precautions
If the shipping carton is visibly damaged upon delivery, ask the car- rier's agent to be present when the instrument is unpacked. If the in- strument is damaged or fails to operate, please notify the carrier and your supplier immediately. Your supplier will arrange for the repair GN Otometrics A/S... -
Page 13: Storage And Shipment
All products returned to GN Otometrics or its repre- sentatives must be shipped prepaid and insured, or you must assume the risk of loss or damage in transit. -
Page 14: Equipment Supplied
8m Serial Interface Cable Service Manual 2.2.4 Installation Locate Capella in a well-ventilated room away from all liquids and sources of heat (see Section 3.1.8, ‘Operating Environment” on page 27 for detailed specifications of operating environment). Test- GN Otometrics A/S... -
Page 15: Care And Maintenance
The probe, headset and parts are in constant contact with your pa- tients so care should be taken to ensure that they are kept clean. 2.3.1 Probe Proper treatment of the Capella combination probe is important. It contains delicate transducers, precisely calibrated to work with your GN Otometrics A/S... - Page 16 The probe cannot be dismantled - this is not necessary for cleaning if the care instructions are followed. Do not fit the probe by holding on to the cable as you could damage the pin connector by doing this. GN Otometrics A/S...
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Page 17: Eartips
There are no special requirements for disposal of the rubber eartips, i.e. they may be discarded in any regular waste bin. 2.3.2.2 Portable use Capella is a fully portable system, but the optional carrying case is recommended for safe transportation. Before packing the system, GN Otometrics A/S... -
Page 18: Hardware Platform
When loose, extract the holder and change fuses - refer to the fuse specifications marked above the on/off switch. Warning! When replacing the fuses there is a risk of fire. For continued protec- GN Otometrics A/S... -
Page 19: Equipment Failure
L2x3 (7.2V, 3800mAh). Dispose of the battery pack by sending it to an authorized Ni- MH battery destruction facility. Do not attempt to disassemble the battery pack. Do not incinerate the battery pack, or expose to fire. GN Otometrics A/S... -
Page 20: Battery Operation
Ni-MH batteries have a typical life (charge/drain cycles) of up to 800 cycles. If the battery is used an average of 30 minutes per cycle, you can expect a total life of 400 hours. If you use the battery 6 hours per GN Otometrics A/S... -
Page 21: Service And Repair
PC. There is no warm-up time required. Figure 3 Communication between your PC and the Hardware Platform is in- dicated by the PC Com LED, which flashes green. If you attempt communication with Capella without powering it on, you will be ad- GN Otometrics A/S... -
Page 22: Calibration
Calibration has been performed on the supplied probe. If you wish to use any other probe for testing with Capella, please contact your local supplier first. Calibration should be performed annually by suitably qualified per- sonnel, using the appropriate equipment. GN Otometrics A/S... -
Page 23: General Description
Other test parameters are selected from the computer using the keyboard or various function keys. The hardware platform has three LED displays indicating power on, battery status, and signal and response transmission (PC Com). GN Otometrics A/S... -
Page 24: Technical Specifications
30 - 80 dB p.e. SPL approx. -30 to 60 dB nHL Linear: Unipolar click. Pulse width 40, 80, 120 µsec. Stimulus Level Range 30 - 80 dB p.e. SPL approx. -30 to 60 dB nHL Level Accuracy ± 4 dB GN Otometrics A/S... -
Page 25: Spontaneous Otoacoustic Emissions (Soae)
Elapsed time, no. of peaks, no. of sweeps in each buffer, noise, arti- fact rate, stimulus stability, signal quality, no. of accepted sweeps, no. of rejected sweeps, percentage of completed sweeps Graphic display: Pos. and neg. significance level as a function of time after stimulus GN Otometrics A/S... -
Page 26: Tympanometry (Immittance Measurements)
Pop-up box displays pump position and status messages in real time Tympanogram characteristics Cartesian tymp. plot; current measured volume and static pressure displayed: in real time; calculated values for ECV, MEP, SC, Grad, TW; and tymp. Type (A, AD, AS, B, C, D, E) GN Otometrics A/S... -
Page 27: Power Supply
Operation in temperatures exceeding -20°C or +60°C may cause permanent damage. 3.1.9 Storage & Shipment Environment Temperature: -20°C to +60°C Relative Humidity: 30 - 90%, non-condensing Atmospheric Pressure: 600 - 1090 hPa 3.1.10 EMC Emission and Immunity: Complies with EN 60601-1-2 GN Otometrics A/S... -
Page 28: Dimensions And Weight
Approx. 1.8 kg, 4 lbs (excl. PC) Probe assembly: 73 g, 2.6 oz. Probe: 14 g, ½ oz. Manufacturer GN Otometrics A/S 9 Hoerskaetten, DK-2630 Taastrup, Denmark Phone: +45 45 75 55 55 Fax: +45 45 75 55 59 www.gnotometrics.com Starting up the system... -
Page 29: Operation
Click on the Ear icon to select the ear you wish to measure, or select Right or Left in the Ear menu. Mount a suitable eartip on the probe and insert it into the ear canal, obtaining a tight seal with the canal wall. GN Otometrics A/S... -
Page 30: Echo-Screen
Meas. No. box on the lower left to make a new measurement or to view other measurements made on the same ear during the session. Repeat the procedure beginning with Probe fit for measuring the other ear. GN Otometrics A/S... -
Page 31: Teoae
(Setup menu) but this not generally recommended as it can affect the correlation coefficient substantially. If displayed, the gray hatched area is not included in the FFT analysis. The Scaling of the FFT display may also be altered and its GN Otometrics A/S... -
Page 32: Dpoae: Dp-Gram
(DPOAE) in the Mode menu and DP-Gram in the submenu. Select Parameters in the Setup menu to define the Level Difference between f and f , select either 2f (DP1) or (DP2) for analysis, and if required change Noise crite- ria, Stop criteria and Noise estimate. GN Otometrics A/S... - Page 33 Measurement status can be monitored by observing the Sweeps and Statistics boxes on the lower right part of the screen. The noise floor during the measurement is also indi- cated by the blue vertical bar to the right of the DP-Gram. GN Otometrics A/S...
- Page 34 Meas. No. box on the lower left to make a new measurement or to view other measurements made on the same ear during the session. 13. Repeat the procedure beginning with Probe fit for measuring the other ear. GN Otometrics A/S...
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Page 35: Dpoae: Input/Output
Meas. No. box on the lower left to make a new measurement or to view other measurements made on the same ear during the session. 10. Repeat the procedure beginning with Probe fit for measuring the other ear. GN Otometrics A/S... -
Page 36: Soae
12. Up to 6 measurements can be made for each ear. Click on the arrow keys in the Meas. No. box on the lower left to make a GN Otometrics A/S... -
Page 37: Tympanometry
Meas. No. box on the lower left to make a new measurement (if Enable meas. no. increment has not been checked in Setup) or to view other measure- ments made on the same ear during the session. GN Otometrics A/S... -
Page 38: Importing Old Celesta Files
Click on the desired user setup file to select, and then on OK to exit. You can also delete an old user setup file by selecting it, and then Delete. You will be prompted to confirm the deletion. GN Otometrics A/S... -
Page 39: Auto Sequence
Parameters. If required, choose the Break condition for Probe fit, Echo- Screen and Tympanometry. Remember that each Auto sequence is for one ear at a time, i.e. to test both ears you must GN Otometrics A/S... -
Page 40: Compare
Repeat step 4 up to five times. Each successive measurement result will be assigned a session number and superimposed on the others on the graph. To display the corresponding meas- urement parameters and/or statistics, select Param. and/or GN Otometrics A/S... -
Page 41: Printing Measurement Results And Comments
(Show Description), bring it to the Top or Bottom, or Delete it from the page. The size of an image may be changed by clicking on an edge or a corner. When the setup is complete, click on Save Setup and assign a name to it. GN Otometrics A/S... - Page 42 User Manual CAPELLA Cochlear Emissions Analyzer GN Otometrics A/S...
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