Manuale d’uso / di manutenzione del prodotto REF 29400 del fabbricante Welch Allyn
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OAE Hearing Screener Directions for Use REF 29400.
COPYRIGH T © 2009 Welch Allyn. Al l rights are reserved. No one is perm itted to reproduce or duplicate, in any form, this m anual or any part thereof without permission f rom W elch Ally n.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 2 Distributed by W elch Ally n under agreem ent with Natus Medical Incorporated PROPERTY OF NAT US MEDICAL INCORPORAT ED ALL RIGHTS RESERVED U.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 3 Contents Chapter 1: Introduction ....................................................................... ............................................. 4 About this manual ..........
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 4 Chapter 1: Introduction The W elch Ally n OAE Hearing Screener m easurem ent system perf orm s otoacoustic em iss ions tests.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 5 A bbreviations A RT LVL - ar tifact level; refers to the thres hold at which samples of data com ing into the W elch Allyn OAE Hearing Screener for process ing are rejected bef ore averaging in order to keep noise fr om averaging into the response.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 6 L1 - level or intensity of F 1; the lower of the stimulus f requencies ex pressed in dB SPL. L2 - level or intensity of F 2; the higher of the stim ulus frequenc ies express ed in dB SPL.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 7 Chapter 2: Welch A lly n OA E Hearing Scre ener Component s and Hardw are Setup Cable Connections The cable connec tions to the W elch Ally n OAE Hearing Screener box are desc ribed in the figure and the instructions below.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 8 Probe part #29402 is compatible o nly with Welch Ally n O A E Hearing Screener (b lue) hardware 29400/29401. Charger Unit Assembly The charger unit is not required for norm al operation.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 9 Communicat ion Cable Assembly The com m unication cable is provided only f or loading the W elch All y n OAE Hearing Screener internal firm ware or for downloading data to a computer.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 10 Chapter 3: Environment and Patient Prep aration There is m inim al patient preparation required for an OAE test. Since the test m easures a phy s iologic event, no behavi or al response is required f rom the patient.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 11 Patient Instr uctions For patients who can understand instructions, the f ollowing i nf orm ation will hel p prepare them for the test. Inform them that: 1. You w ill insert the ear tip into the ear canal.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 12 Chapter 4: Care and M aintenance of the Probe.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 13.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 14 Chapter 5: Quick Guides and Instructional Videos This sec tion of the docum ent presents Q uick Guides, step-by step test procedures and other useful inform ation. T he Quick Guides: • List the steps required for perform ing an OAE test and f or reviewing OAE data.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 15.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 16.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 17 Quick Guide: Causes of ‘Refer” r Welch A l ly n OAE Hearing Screener Troubleshooting Quick Guide: Causes of Refer Results Noise Problem Possible solutions ♦ Noisy surroundings — Other people in or near test site.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 18 Obstructions Problem Possible solutions ♦ Cerum en, vernix, or other debris — In the ear — On the probe tip — On the probe ♦ IN THE EAR: — Make sur e that a properly tr ained technician examines the ear canal for obstr uctions BEFORE inserting the probe.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 19 Chapter 6: Welch A lly n OA E Hearing Scr eener Clinical Competency E v alua tion and Result Letters The W elch Ally n OAE Hearing Screener Clinical Competency Evalua tion is used for the T rain the Trainer approac h to learning the W elch Allyn OAE Hearing Screener.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 20 Welch A llyn OA E Hearing Sc reene r Clinica l Competenc y E valuation Purpose: This evaluation certifie s that ____ ____ _____ ____ has m et W elch Allyn’s requiremen ts fo r utilizing the OA E Hearing Scre ener.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 21 PEDIATRIC HEA RING SCREENI NG RESULTS Date of Exam :____ ____ ____ _____ ____ ___ Patient ’s Name :____ ____ ____ ____ _____ ___ Date of Birth :____ ____ _____ ____ ____ ___ This p atient's hearing was scree ned u sing otoa coustic e missions.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 22 PEDIATRIC HEA RING SCREENI NG RESULTS Date of Exam :____ ____ ____ _____ ____ ___ Patient ’s Name :____ ____ ____ ____ _____ ___ Date of Birth :____ ____ _____ ____ ____ ___ This p atient's hearing was scree ned u sing otoa coustic e missions.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 23 Chapter 7: System Operation The f ront label of the W elch Ally n OAE Hearing Screener incorporates five buttons that the user presses to tur n on or reset the box and m ove through the possible program operations.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 24 The UP and DOW N arrow buttons m ove through the list of program choic es and data files. Press the UP or DOW N arrow keys until the desired program f unction appears in the LCD. Then pres s the DX SELECT button.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 25 Chapter 8: Distortion Product Otoacoustic Emis sions Performing a DPOAE Test This flow c hart begins at the point where the Pow er ON flow c hart ended. The s teps shown here are specif ic for per form ing the pre-pr ogram m ed DPOAE test procedure.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 26 After 10 tests have been perf orm ed, the next test (test 11) will overwrite the first test. This proceeds in a continuous loop so that only the last 10 tests perfor m ed are saved and access ible in mem or y .
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 27 Viewing DPOAE Test Detai ls or Retesting an Ear with a Refer Result Immediate ly After a Test This f low chart begins at the point imm ediately af ter the DPOAE test has been succ essf ully com pleted and the SEE DETAILS mess age is display ed.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 28 Printing DPOAE Test Detai ls I mmediately After a Test The W elch Ally n OAE Hearing Screener with the serial label pr inter prin.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 29 Viewing Previ ously Collected DPOAE Data This f low chart begins at the point where the P ERFORM DPOAE m essage is dis play ed and shows the program flow for instances in which y ou wish to view data that is saved in mem ory.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 30 Chapter 9: Printing Pr ev iously Collected Dat a – Single Ear The AC power supply must be connected to the back of the printer and plugged into an outlet. The printer m ust be powered ON using the ON/OFF switch.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 31 display ed will be the last test perf orm ed. W hen the des ired test num bers have been chos en, press the DX SELECT button to print out a label for that particular patient.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 32 Chapter 10: Printing Pr ev iousl y Colle cted Dat a – Both Ears on One Label This flow c hart begins at the point where the PERFORM DPOAE m es sage is display ed and shows the program flow for instances in which y ou wish to print data that is stored in mem ory.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 33 Label Feed Button On Button Chapter 1 1 : Printer See Chapters 8, 9 and 10 for instruc tions about how to print out tests from the W elch Ally n OAE Hearing Screener.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 34 Ordering Labels To order labels c all W elch Allyn at 1-800-535-6663..
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 35 Chapter 12: System Default Protocol The W elch Ally n OAE Hearing Screener com es pre-progr am med with a DPOAE default scr eening protocol.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 36 DPOA E Measur ement-Base d Stopping Rules per Tes t The system def ault DPOAE protocol stops the test when the conditions for an overall test Pass or Refer occ ur.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 37 Chapter 13: Reloading W A OA E Firmw are (W A OA E Load sof tw ar e) The W elch Ally n OAE Hearing Screener runs on firm ware that resides on a m em ory chip inside the unit.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 38 • If y our PC does not support the autom atic running of the installation software on the CD y ou will need to browse to the CD drive using W indows Explorer and open the file nam ed “install.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 39 8. Exit the application w hen the W A OAE Firmware download is complete. Note: If you need assist ance installing th e WA OA E Load softw are on your PC or dow nloading W A OA E Firmware, please con tact Welch Ally n Tech nical Support at 1- 800-535-6663.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 40 Chapter 14: Exporting using A SC II Link ASCII Link is a utility program that lets you downl oad data f rom the W elch Ally n OAE Hearing Screener unit's m em ory to a PC and convert it to an ASCII file.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 41 Chapter 15: T r oubleshooting, Service and W arranty Error m essages usually appear on the LCD when the sy s tem is unable to perform a des ired function. T his section lists som e of the mor e com m on error m ess ages and possible solutions.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 42 This m essage appears when one of the buttons on the W elch Ally n O AE Hearing Screener label is depressed f or mor e than .3 sec . R eleasing the button returns the s y s tem to norm al operation.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 43 Service Caution Unauthorized repairs will voi d the warranty . A W elch Ally n Service Center mus t perform all repairs on produc ts under warranty. Quali fied electronics personnel or a W elch Ally n Service Center s hould repair products out of warranty.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 44 A ppendix A Precautions and Safety Instructions Equipment Ide ntification Lab els and Markings Classification The International E.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 45 Electric al Insta llation Requi rements The f ollowin g requirem ents are necess ary onl y when using the W elch Ally n O AE Hearing Screener in an AC-powered configuration. Grounding is not necess ary i n nor m al battery -powered use.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 46 Environmental Spec ifications Temperature Operating: 15 to 40 degrees C Storage: -20 to 70 degrees C Humidity Operating: 15% to 9.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 47 Electromagnetic Imm unity The REF 29400 Series OAE Hearing Screener is intended f or use in the electrom agnetic environment specified below. The custom er or user of the REF 29400 Series OAE Hearing Screener should assur e that it is used in such an environment.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 48 Electromagnetic Imm unity The REF 29400 Series OAE Hearing Screener is intended f or use in the electrom agnetic environment specified below. The custom er or user of the REF 29400 Series OAE Hearing Screener should assur e that it is used in such an environment.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 49 b Over the frequency range 150 kHz to 80 MHz, field strengths s hould be less than 3 V /m.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 50 Installatio n Preca utions Observe the following precautions when using the W elch Allyn OAE Hearing S creener and related equipment. Environmental Co nditions • Select a room with properly gr ounded power sources (when using in AC-powered configuration).
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 51 System Hookups • Verify the maxim um load for any multiple portable sock et-outlet (if used) does not exceed 750 VA. • Do NO T place any multiple portable socket- outlets (if used) on the f loor.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 52 Installatio n Verific ation Use the following list to verify all equipment is c orrectly install ed before use. • Verify all equipment and cables are undam aged and in perfect working c ondition.
W elch All yn OAE Hearing Screener Directions for Us e 705353 Rev E 53 INDEX A Abbreviations .................................................. 5, 6 ASCII Link ......................................................... 40 AuDX Buttons .................
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Welch Allyn REF 29400 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Welch Allyn REF 29400 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Welch Allyn REF 29400 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Welch Allyn REF 29400 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Welch Allyn REF 29400, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Welch Allyn REF 29400.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Welch Allyn REF 29400. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Welch Allyn REF 29400 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
