Maico touchTymp MI 26 - Page 48

Operation Manual touchTymp MI 26 and MI 36 Version
8511780 Rev. 4
47
30/06/2021
5.4.4.5 Performance and Evaluation of Eustachian Tube Function (ETF) – MI 36 Version
Selection of the ETF icon from the Home screen or Fixed Function Bar leads to the
ETF screen (Figure 67). ETF has two operations:
• ETF Intact : performed on patients with normal tympanic membrane (TM).
• ETF Perforated : performed on patients with a perforated TM or open PE tubes
in place.
ETF Intact is the default selection when the module is entered.
Figure 67
Performing a Measurement
Figure 68
Select the test type ETF Intact , or ETF Perforated
(Figure 68).
Performing an ETF Intact Measurement
ETF Intact is performed by measuring three tympanograms on a multilayer display.
Before testing begins, instruct the patient not to move or talk until the test is completed.
Any sound or movement may give unreliable results.
Figure 69
As the test is progressing the numerical information below
the graph is displayed. Once the first tympanogram is
complete, the pressure at the maximum compliance
appears under Pressure 1 (Figure 69).
Figure 70
The pressure is held as the patient is instructed to
perform a maneuver (i.e. Swallow, Valsalva) (Figure
70). When completed, press continue for the second
tympanogram to be completed. The pressure at the
maximum compliance appears under Pressure 2.
Figure 71
Once again, the pressure is held while the instruction is
displayed for the patient to perform the second
maneuver (Figure 71). Press continue to perform the
third tympanogram. The pressure at the maximum
compliance displays under Pressure 3.