Table 2 Time to first fixation (TFF) based on eye-tracking metrics for tasks showing significant differences in at least one comparison between devices.
From: Qualitative and quantitative evaluation of the usability of transport ventilators using eye tracking
Tasks | Monnal T60 | Oxylog 3000 plus | Hamilton-T1 | Medumat Transport |
|---|---|---|---|---|
[s] | [s] | [s] | [s] | |
Turn on the device | 18.0 [14.4] | 0.8 [0.4] | 1.0 [0.8] | 0.8 [0.4] |
Set VCV mode | 8.1 [5.0] | 3.9 [2.8] | 1.7 [1.9] | 7.9 [7.6] |
Set vent. Frequency to… | 1.2 [1.0] | 1.2 [1.0] | 13.9 [13.0] | 1.8 [0.9] |
Set PEEP to… | 1.5 [1.5] | 9.8 [8.8] | 1.8 [1.2] | 1.6 [1.1] |
Set peak pressure to… | 43.5 [25.5] | 2.3 [1.8] | 44.3 [24.1] | 1.5 [0.7] |
Set I:E ratio to… | 16.0 [17.2] | 2.7 [2.4] | 6.4 [2.9] | 2.1 [0.9] |
Read out Ppeak | 7.2 [8.8] | 19.0 [13.2] | 3.4 [2.4] | 12.2 [26.0] |
Read out exp. MV | 3.9 [2.6] | 8.2 [4.7] | 0.8 [0.8] | 3.8 [3.1] |
Set PSV mode | 7.7 [1.8] | 3.2 [1.8] | 11.9 [10.7] | 10.4 [6.2] |
Open alarm menu | 1.5 [2.8] | 3.0 [1.7] | 1.8 [1.1] | 8.8 [4.6] |
Set alarm volume to… | 21.3 [12.3] | 20.8 [19.4] | 34.9 [25.8] | 17.5 [11.7] |
Read out end-tidal CO2 | 3.4 [5.4] | 9.7 [1.8] | 2.7 [0.8] | 2.5 [1.6] |
Read out exp. VT | 12.1 [6.4] | 10.6 [2.9] | 1.5 [1.7] | 3.6 [2.8] |
Turn off the device | 7.8 [12.6] | 1.8 [2.2] | 1.9 [1.1] | 1.7 [0.9] |
