Contents
MicroTymp2 – Introduction
MicroTymp2 Handle Components .............................................................2
MicroTymp2 Printer/Charger Components ................................................3
Preparing to Use the MicroTymp2 Handle and Printer/Charger................ 3
Setting up the MicroTymp2 Handle and Printer/Charger ...................... 4
MicroTymp2 – Completing a Test
Obtaining a Tympanogram.........................................................................5
Selecting a Probe Tip .............................................................................5
Testing....................................................................................................6
Storing and Erasing Data .......................................................................7
Displaying Memory Contents .................................................................8
Erasing Memory Contents......................................................................8
Understanding the Liquid Crystal Display (LCD) and Its Messages .......... 8
Gradient (Width) Measurements.............................................................8
Printing Memory Contents .......................................................................15
MicroTymp2 Printout Formats..................................................................16
Description of Formats .........................................................................16
Selecting Printout Formats.......................................................................20
Changing from Manual to Automatic Printout ......................................20
Changing Printout Format ....................................................................21
Printer Function Messages ......................................................................23
Printer Service Codes ..............................................................................24
Appendix A – Guide to Tympanometry
Basic Principles of Tympanometry ....................................................... A-25
Tympanogram Characteristics ............................................................. A-26
How the MicroTymp2 Instrument Works.............................................. A-27
Normative Values for the MicroTymp2 .................................................A-28
Interpreting Tympanogram Results ...................................................... A-29
Obtaining a Valid Tympanogram....................................................... A-31
Tympanometry in Young Infants ....................................................... A-31
Conditions Which Cause Too Much Artifact..................................... A-31
Conditions Which Artificially Flatten the Tympanogram ....................A-32
The Normal Ear ................................................................................ A-33
Low-Admittance Pathologies ...........................................................A-34
Tympanic Membrane Abnormalities ................................................. A-36
Conditions Which Cause Negative Middle Ear Pressure ..................A-37
Conditions Which Cause Positive Middle Ear Pressure....................A-37
Appendix B – Guidelines for Screening for Hearing Impairments
and Middle Ear Disorders ..................................................................B-39
Recommended Screening Protocol .....................................................B-41
Audiological or Medical Referral .......................................................B-42