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- Operating Instructions Manual
Maico ERO SCAN Operating Instructions Manual
Summary of ERO SCAN
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Maico diagnostic gmbh maico diagnostic gmbh, salzufer 13/14, d 10587 berlin, tel. ++49 30/70714650, fax ++49 30/70714699 operating instructions maico eroyscan™ screener.
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Gebaeroscreene_09a.Doc 851 983/6 03/09 operating instructions eroxscan tm screener table of contents 1 introduction ............................................................................................. 1 2 important safety instructions ...........................................................
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Gebaeroscreene_09a.Doc 851 983/6 03/09 operating instructions eroxscan tm screener 7.8 setting the clock ............................................................................. 24 8 changing instrument settings ................................................................ 26 9 interpreting ...
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Gebaeroscreene_09a.Doc 1 851 983/6 03/09 operating instructions eroxscan tm screener 1 introduction thank you very much for purchasing a quality product from the maico family. This automatic oae-test system maico ero•scan™ screener is manufactured to meet all quality and safety requirements, and has...
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Gebaeroscreene_09a.Doc 2 851 983/6 03/09 operating instructions eroxscan tm screener 2 important safety instructions the maico ero•scan™ screener otoacoustic emission test system should be used only by those individuals trained to perform the testing for which it has been designed. No person should ...
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Gebaeroscreene_09a.Doc 3 851 983/6 03/09 operating instructions eroxscan tm screener disclaimer the maico ero•scan™ screener test instrument is designed to be a screening device for hearing loss. Sensitivity and specificity of this type of device are based on the test characteristics defined by the ...
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Gebaeroscreene_09a.Doc 4 851 983/6 03/09 operating instructions eroxscan tm screener read this section carefully before use printer ac power source precautions the printer ac power source converts main voltage (120v ac or 230v ac) to a low voltage (12v dc) for powering the printer. Use only the powe...
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Gebaeroscreene_09a.Doc 5 851 983/6 03/09 operating instructions eroxscan tm screener 3 purpose the purpose of the ero•scan™ screener test system is to provide a rapid measurement and documentation of distortion product otoacoustic emissions (dpoaes) or transient evoked otoacoustic emissions (teoaes)...
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Gebaeroscreene_09a.Doc 6 851 983/6 03/09 operating instructions eroxscan tm screener how does the ero•scan™ screener device work? The digital signal processor in the instrument generates two pure tones (f 1 and f 2 ) for dpoaes or a series of wideband clicks for teoaes through a digital-to- analog c...
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Gebaeroscreene_09a.Doc 7 851 983/6 03/09 operating instructions eroxscan tm screener 4 description what is the ero•scan™ screener? The ero•scan™ screener otoacoustic emission test instrument is a hand- held device designed to provide an objective test of outer hair cell function through the measurem...
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Gebaeroscreene_09a.Doc 8 851 983/6 03/09 operating instructions eroxscan tm screener how are the results stored and reported? When the ero•scan™ screener is set in its default settings, the instrument will store the results from one patient (left and right ear) in its non-volatile memory for subsequ...
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Gebaeroscreene_09a.Doc 9 851 983/6 03/09 operating instructions eroxscan tm screener 5 setup 5.1. Unpacking the system your maico ero•scan tm screener is carefully inspected and packed for shipping. However, it is a good practice to thoroughly inspect the outside of the shipping box for signs of dam...
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Gebaeroscreene_09a.Doc 10 851 983/6 03/09 operating instructions eroxscan tm screener installation printer cable 5.2. Connection to the optional printer connect one end of the printer cable ´ into the port ¬♦ located on the underside of the cradle as shown in figure 1 to the right. After firmly push...
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Gebaeroscreene_09a.Doc 11 851 983/6 03/09 operating instructions eroxscan tm screener 5.3. Environmental conditions the maico ero•scan tm screener should be operated in a quiet room, so that the examinations are not influenced by outside noises. Electro-medical instruments, which emit strong electro...
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Gebaeroscreene_09a.Doc 12 851 983/6 03/09 operating instructions eroxscan tm screener figure 3 figure 4 paper holder lever paper 5.5 loading paper into the optional printer open the cover of the printer by pulling up and back. Orient the paper roll so that the paper will feed from the bottom of the ...
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Gebaeroscreene_09a.Doc 13 851 983/6 03/09 operating instructions eroxscan tm screener 5.6 attaching eartips the ero•scan tm screener instrument comes with a box of disposable eartips that fit a variety of ear canal sizes. The probe tip must have an eartip attached before inserting it into an ear can...
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Gebaeroscreene_09a.Doc 14 851 983/6 03/09 operating instructions eroxscan tm screener 10 9 12 figure 1 figure 2 6 quick start these steps will allow you to quickly start using the ero•scan™ screener oae test system. If you have a teoae instrument it will be in the teoae test mode. Be sure to perform...
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Gebaeroscreene_09a.Doc 15 851 983/6 03/09 operating instructions eroxscan tm screener 7 performing dpoae and teoae tests 7.1. Preparing the patient for testing otoscopic examination of the patient’s ear canals should be performed prior to testing. Excessive cerumen or vernix in the ear canals may in...
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Gebaeroscreene_09a.Doc 16 851 983/6 03/09 operating instructions eroxscan tm screener automatic shutdown the ero•scan tm screener instrument has an automatic “shutdown” feature, designed to prolong battery life. The unit will automatically shut down after 1 minute (default) of inactivity. To turn it...
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Gebaeroscreene_09a.Doc 17 851 983/6 03/09 operating instructions eroxscan tm screener frequency range = 1.5 khz to 4 khz pass snr (signal-to-noise ratio) = 4 db click presentation level = 83 db number of passing frequencies for overall test pass = 3 spl peak equivalent 7.4.1 to begin testing to begi...
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Gebaeroscreene_09a.Doc 18 851 983/6 03/09 operating instructions eroxscan tm screener when testing dpoaes, the default test time is 16 seconds. When testing teoaes, the default test time is 64 seconds, however, the test will automatically stop when the pass criteria has been met or exceeded. The arr...
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Gebaeroscreene_09a.Doc 19 851 983/6 03/09 operating instructions eroxscan tm screener 7.4.4 reviewing results when testing is complete, a display similar to figure 13 will appear. The results of the test are automatically saved in memory as soon as the test is complete. The results will be saved eve...
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Gebaeroscreene_09a.Doc 20 851 983/6 03/09 operating instructions eroxscan tm screener when testing a newborn, gently pull down and back on the pinna to straighten out the ear canal. Prepare the ero•scan tm screener unit by turning on the device, selecting the test ear and eartip. It is very importan...
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Gebaeroscreene_09a.Doc 21 851 983/6 03/09 operating instructions eroxscan tm screener pins in the plug and the pin receptacles in the socket. The plug and socket should be visually inspected prior to each installation of the remote probe. If damage is observed, contact your special equipment distrib...
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Gebaeroscreene_09a.Doc 22 851 983/6 03/09 operating instructions eroxscan tm screener 7.5.2 testing with the remote probe the remote probe uses the same disposable eartips as the ero•scan tm screener probe. Place the eartip fully onto the probe tip (figure 15). Never use the probe without an eartip ...
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Gebaeroscreene_09a.Doc 23 851 983/6 03/09 operating instructions eroxscan tm screener most of the tester’s hand movement and associated noise from the probe, but the tester should hold the instrument as steady as possible. 7.7 printing the results (optional) it is recommended that the results be pri...
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Gebaeroscreene_09a.Doc 24 851 983/6 03/09 operating instructions eroxscan tm screener figure 15 7.8 setting the clock when the ero•scan screener test instrument is first used, the correct date and time will need to be set on its internal clock. The date and time are listed on the test printout as mo...
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Gebaeroscreene_09a.Doc 25 851 983/6 03/09 operating instructions eroxscan tm screener pressing the down arrow key will return to the main menu. The time and date changes are automatically saved. Figure 21 figure 20 figure 19.
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Gebaeroscreene_09a.Doc 26 851 983/6 03/09 operating instructions eroxscan tm screener 8 changing instrument settings to access menus the ero•scan tm screener instrument allows the user to change many of the instrument's settings or functions. These settings include the test mode, clearing test resul...
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Gebaeroscreene_09a.Doc 27 851 983/6 03/09 operating instructions eroxscan tm screener shutdown time which controls how long the ero•scan tm screener instrument waits before shutting itself off after a period of inactivity. It is not necessary to manually turn off the ero•scan tm screener unit. The a...
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Gebaeroscreene_09a.Doc 28 851 983/6 03/09 operating instructions eroxscan tm screener this point either the results must be printed or they must be cleared from memory. It is important to keep a record of the test number for each patient if this feature is used. Upon saving test number 45, the red “...
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Gebaeroscreene_09a.Doc 29 851 983/6 03/09 operating instructions eroxscan tm screener clock mode select the ↓next key to enter the clock mode (figure 32). This menu allows the user to change the clock from a 12 hour mode to a 24 hour mode. To change the clock mode, press the ←change→ keys. Press the...
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Gebaeroscreene_09a.Doc 30 851 983/6 03/09 operating instructions eroxscan tm screener sign al -to -nois e ratio (snr) frequency each vertical segment represents 2 db snr each column represents an individual frequency 9 interpreting results understanding the display the display on the ero•scan tm scr...
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Gebaeroscreene_09a.Doc 31 851 983/6 03/09 operating instructions eroxscan tm screener - the software version number. - the averaging time used for this test. - the mode selected for this test. - the f2 frequency. - the pressure levels of f1 and f2 respectively. - the level of the emission in db spl....
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Gebaeroscreene_09a.Doc 32 851 983/6 03/09 operating instructions eroxscan tm screener understanding the teoae printed test results (optional) each test will generate its own printout. - the test number. - the ear selected. - the time and date of the test, based on the setting of the internal clock. ...
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Gebaeroscreene_09a.Doc 33 851 983/6 03/09 operating instructions eroxscan tm screener again, the pass/refer criterion is based on the full precision of the results, and not the rounded values that are printed. The full precision value for the sn must be equal to or greater than the pass criterion (5...
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Gebaeroscreene_09a.Doc 34 851 983/6 03/09 operating instructions eroxscan tm screener 10 cleaning and maintenance cleaning the instrument this instrument and its accessories may be wiped clean with a damp cloth using a mild antiseptic solution (e.G., cetylcide). Take care not to put excessive pressu...
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Gebaeroscreene_09a.Doc 35 851 983/6 03/09 operating instructions eroxscan tm screener probe tip replacement: remote probe to remove: using a small pointed object, such as a pen or small screwdriver, push in the notches on the left and right sides of the rear of the remote probe until each tab is rel...
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Gebaeroscreene_09a.Doc 36 851 983/6 03/09 operating instructions eroxscan tm screener 11 troubleshooting problem: instrument does not turn on. Solutions: the down arrow key must be pressed for a full second. Check that the batteries are installed correctly. Install new batteries. Problem: the test w...
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Gebaeroscreene_09a.Doc 37 851 983/6 03/09 operating instructions eroxscan tm screener 12 replacement parts 1 printer paper roll part. No. 70 50 77 1 set (4 pcs.) probe tips part. No. 70 50 81 1 set eartips 3 mm (yellow) part. No. 70 50 63 1 set eartip 4 mm (red) part. No. 70 50 64 1 set eartips 5 mm...
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Gebaeroscreene_09a.Doc 38 851 983/6 03/09 operating instructions eroxscan tm screener 13 technical data the maico ero•scan tm screener is an active, diagnostic medical product according to the class iia of the eu medical directive 93/42/eec. Standards: iec 601-1 approvals: us f.D.A 510 (k) #980533 (...
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Gebaeroscreene_09a.Doc 39 851 983/6 03/09 operating instructions eroxscan tm screener printer with optional rechargeable battery power supply: ni-mh rechargeable battery pack recharger: plug-in transformer 12v 400ma/ 230v~50hz double insulated battery life: approximately 300 tests processor specific...
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Gebaeroscreene_09a.Doc 40 851 983/6 03/09 operating instructions eroxscan tm screener 14 warranty, maintenance and service the oae-test system maico ero•scan tm screener is guaranteed for 1 year. This warranty is extended to the original purchaser of the instrument by maico through the distributor f...
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Gebaeroscreene_09a.Doc 41 851 983/6 03/09 operating instructions eroxscan tm screener 1 5 safety regulations electrical safety the oae-test system maico ero•scan tm screener is a battery driven low voltage instrument. The instruments are not intended for operation in areas with an explosion hazard. ...
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Gebaeroscreene_09a.Doc 42 851 983/6 03/09 operating instructions eroxscan tm screener 16 certificate of conformity product: product type oae test system trade mark erox scan tm screener beginning with 886 4001 valid until 31.07.2009 manufacturer: name: maico diagnostic gmbh address: salzufer 13/14 a...
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Gebaeroscreene_09a.Doc 43 851 983/6 03/09 operating instructions eroxscan tm screener specifications are subject to change maico diagnostic gmbh salzufer 13/14 1058 berlin telefon +49 3070 71 46 50 telefax +49 30 70 71 46 99 e-mail: export@maico.Biz internet: www.Maico.Biz.
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Gebaeroscreene_09a.Doc 44 851 983/6 03/09 operating instructions eroxscan tm screener appendix a internal probe specifications microphone frequency response (nominal) system noise floor (nominal) sound source frequency response (nominal) system distortion + noise (nominal).
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Gebaeroscreene_09a.Doc 45 851 983/6 03/09 operating instructions eroxscan tm screener appendix a remote probe specifications microphone frequency response (nominal) system noise floor (nominal) sound source frequency response (nominal) system distortion + noise (nominal).
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Gebaeroscreene_09a.Doc 46 851 983/6 03/09 operating instructions eroxscan tm screener appendix b program flowchart.
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Gebaeroscreene_09a.Doc 47 851 983/6 03/09 operating instructions eroxscan tm screener appendix b program flowchart.
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Gebaeroscreene_09a.Doc 48 851 983/6 03/09 operating instructions eroxscan tm screener appendix c test sequence a complete test sequence consists of an autostart, calibration and test phase. The autostart phase determines when the calibration phase should proceed, while the calibration phase calibrat...
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Gebaeroscreene_09a.Doc 49 851 983/6 03/09 operating instructions eroxscan tm screener artifact rejection is employed during the test phase to reduce the effect of transient noise bursts by the use of an adaptive rejection threshold. The unit attempts to accept the quieter sections of the test, while...
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Gebaeroscreene_09a.Doc 50 851 983/6 03/09 operating instructions eroxscan tm screener requiring an snr of 6 db in three out of four frequencies drops the probability of passing an ear with significant hearing loss to 1% or less. Note: by the binomial distribution, two of three frequencies at >8.4 db...
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Gebaeroscreene_09a.Doc 51 851 983/6 03/09 operating instructions eroxscan tm screener appendix d pass/refer criteria for teoae the same basic principles that underlie dpoae pass/fail criteria underlie teoae pass/fail criteria. In the case of transients, requiring snr of 4 db at any three out of the ...
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Gebaeroscreene_09a.Doc 52 851 983/6 03/09 operating instructions eroxscan tm screener.
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Gebaeroscreene_09a.Doc 53 851 983/6 03/09 operating instructions eroxscan tm screener appendix e preset test protocols dp number of frequencies tested = 4 frequency range = 2 khz to 5 khz p1 (intensity of f1 in db spl) = 65 p2 (intensity of f2 in db spl) = 55 averaging time = 4 seconds per frequency...
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Gebaeroscreene_09a.Doc 54 851 983/6 03/09 operating instructions eroxscan tm screener appendix f testing at 4 khz emission levels at 4 khz are usually stronger than those at 2 and 3 khz, so 4 khz should be the easiest frequency at which to obtain a pass result. Two things can reverse the score: a) a...
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A maico ero•scan ™ hand-held unit à eartip Ä probetip Å control and display area Æ housing Ç error-led (red) È test-led (yellow) É ready-led (green) Ê graphical lcd-display Ë left button Ì down button Í up button Î right button Ï monitor phone connector Ð drawer battery compartment Ñ contacts for da...