Welch Allyn MicroTymp 3 User Manual

MicroTymp
®
3
portable tympanometric
instrument
Directions for use

Welch Allyn MicroTymp 3 Specifications

General

Brand	Welch Allyn
Model	MicroTymp 3
Category	Measuring Instruments
Language	English

Summary

Directions for use

1 - Introduction

About this document

General information about the manual.

Intended use

Purpose and application of the tympanometer.

About the device

Overview of the tympanometer's capabilities.

Controls, indicators, and connectors

Description of physical components.

Handle components

Details of the tympanometer handle's parts.

Printer/Charger components

Details of the printer/charger unit's parts.

Symbols

Explanation of documentation and operation symbols.

General warnings

Critical safety precautions and potential hazards.

General cautions

Important safety considerations for device usage.

General notes

Additional useful information and guidelines.

Initial setup

Steps for setting up the device.

Set up the printer/charger

Procedures for setting up the printer/charger unit.

Set up the handle

Procedures for setting up the handle unit.

Charge the handle

Instructions for charging the device handle.

2 - Completing a test

Obtaining a tympanogram

Process of acquiring a tympanogram.

Select a probe tip

Guidance on choosing and fitting the probe tip.

Start a test

Steps to initiate and conduct a tympanometric test.

Store and display data

How to save and view test results.

Erase memory contents

Methods for clearing stored test data.

Change the default frequency

Procedure to switch between 226 Hz and 1000 Hz settings.

3 - Understanding the LCD messages

Company identification

Displays the manufacturer's name on the LCD.

Frequency confirmation

Verifying the selected test frequency (226 Hz or 1000 Hz).

Open

Message indicating no valid ear cavity detected.

Test

Message indicating the test has started.

Block

Message indicating low admittance preventing test continuation.

Leak

Message indicating pressure targets were not achieved.

Right store/Left store

Indicates successful storage of test results.

Right clear/Left clear

Indicates memory location is empty or cleared.

Low battery

Message indicating the battery needs recharging.

Range error

Message indicating a large pressure change occurred.

Zero error

Message indicating pressure compensation error.

Calibration due

Reminder for annual calibration of the device.

Needs service

Indicates the device failed an internal test.

System check

Indicates the device is performing self-checks.

Data Transfer

Message indicating data is ready for printing.

4 - Interpreting test results

Tympanograms

Graphical representation of middle ear pressure and admittance.

Key characteristics of the tympanogram

Explanation of tympanogram metrics.

Gradient (width) measurements (226 Hz only)

Measuring the width of the tympanogram curve.

226-Hz mode

Specifics of the 226 Hz test mode.

Normative values

Standard measurement ranges for different age groups.

Interpreting 226-Hz tympanogram results

How to analyze 226 Hz test outcomes.

Normal middle ear

Characteristics of a normal tympanogram.

Low admittance tympanograms

Tympanograms indicating low admittance.

Tympanogram with low Peak Ya

Tympanograms showing reduced peak height.

High admittance tympanograms

Tympanograms indicating high admittance.

Negative and positive peak pressure tympanograms (left or right shift)

Tympanograms showing pressure shifts.

Flat tympanograms

Tympanograms showing a flat curve.

Tympanograms with artifact

Tympanograms affected by movement or noise.

1000-Hz mode

Specifics of the 1000 Hz test mode.

Tympanometry in young infants

Using 1000 Hz for infant testing.

Normative values

Standard measurement ranges for 1000 Hz tests.

Interpreting 1000-Hz results

How to analyze 1000 Hz test outcomes.

Pass

Interpretation of a successful 1000 Hz test.

Refer

Interpretation indicating a need for further evaluation.

Retest

Indicates a need to repeat the test.

Influence of altitude

How altitude affects test readings.

Influence of temperature

How temperature affects test readings.

5 - Printing 226-Hz results

Print memory contents

Steps to print stored test data.

Printout formats

Description of different printout layouts.

Tympanogram section

Details of the graphical part of the printout.

Data section

Details of the numerical data on the printout.

Interpretive messages section

Details of the text-based interpretations on the printout.

Select printout formats

How to choose different printout options.

Change from manual to automatic printout

Setting the printer mode.

Change printout format

Adjusting the printout layout.

Print interpretive messages

Controlling message inclusion on printouts.

Print tympanogram only or tympanogram and data

Selecting print content.

Printer function messages

Explaining messages related to print job issues.

Printer service codes

Interpreting printer error codes via flashing indicators.

6 - Maintenance and troubleshooting

Maintain the equipment

General maintenance procedures.

About the battery

Information about the device's battery.

Replace the battery

Steps for replacing the rechargeable battery.

Recycle the Battery

Instructions for environmentally friendly battery disposal.

Replace the tips

Guidance on replacing probe tips.

Replace the paper

Procedure for changing the printer paper roll.

Cleaning

Procedures for cleaning the device components.

Clean the handle

Instructions for cleaning the tympanometer handle.

Clean the printer/charger

Instructions for cleaning the printer/charger.

Clean the probe tips

Instructions for cleaning the probe tips.

Functional Checks

Procedures for testing device functionality.

Check the handle

How to perform functional checks on the handle.

226-Hz check

Performing a functional check at 226 Hz.

1000-Hz check

Performing a functional check at 1000 Hz.

Troubleshooting the Handle

Solutions for common handle issues.

Check the printer/charger

How to test the printer/charger functionality.

A - Middle ear pathologies

Low-admittance pathologies

Conditions causing low admittance readings.

Otitis media with effusion (OME)

Description of OME and its tympanometric effects.

Middle ear tumor

Description of middle ear tumors and their effects.

Lateral ossicular fixation

Description of ossicular fixation and its effects.

Otosclerosis

Description of otosclerosis and its effects.

Tympanic membrane abnormalities

Description of tympanic membrane issues.

Ossicular disruption

Description of ossicular disruption and its effects.

B - Service and warranty information

Service

Information regarding device service.

Repair

Procedures and policies for device repair.

Calibration

Information on device calibration.

Warranty

Details of the product warranty.

Instrument

Warranty terms for the main instrument.

Rechargeable battery

Warranty terms for the battery.

C - Specifications

Physical characteristics

Dimensions and physical attributes of the device.

Technical specifications

Detailed technical parameters of the device.

Probe tone

Specifications related to the probe tone.

Pressure measurement system

Specifications for pressure measurement.

Admittance measurement system

Specifications for admittance measurement.

Display resolution

Resolution of displayed measurements.

Weight

Weight of the instrument and accessories.

Operating environment

Conditions for device operation.

Storage environment

Conditions for device storage.

Battery

Battery specifications.

Probe tips

Details about available probe tips.

Printer paper

Specifications for printer paper.

Printer/Chargers

Details on available Printer/Charger models.

Operating ranges

Voltage and frequency operating ranges.

Equivalent units and symbols

Definitions of units and symbols used.

Standards compliance

List of standards the instrument meets.

Disposal of non-contaminated electrical and electronic equipment

WEEE directive compliance.

Guidance and manufacturer's declaration

Declarations regarding device usage.

Emissions and immunity information

Information on electromagnetic compatibility.

Electromagnetic Immunity

Details on immunity to electromagnetic interference.

Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and the MicroTymp3

Guidance on RF interference prevention.

D - Replacement parts and accessories

Battery

Replacement battery information.

MicroTest Cavity

Replacement part for the MicroTest Cavity.

Probe Tips

Replacement probe tips.

MicroTymp 2 and 3 Paper

Replacement printer paper.

Handle

Replacement handle unit.

1000-Hz Screening Results Cards

Accessory for recording screening results.

Replacement Power Cords

Replacement power cords for printer/charger.

Carrying Case for MicroTymp 2 or 3 and AudioScope 3

Carrying case accessory.

Glossary

Acoustic admittance

Definition of acoustic admittance.

Keratoma

Definition of keratoma.

Middle ear effusion

Definition of middle ear effusion.

Otitis media with effusion

Definition of otitis media with effusion.

Static admittance (Peak Ya)

Definition of static admittance.

Tympanogram

Definition of tympanogram.

Tympanometric gradient

Definition of tympanometric gradient.

Tympanometric peak pressure

Definition of tympanometric peak pressure.