User manual

User Manual for Multi-parameter Patient Monitor
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4.2.1 Screen Description
Freezing, ST segment analysis screen is similar with the main screen, except the waveforms are frozen. For
example, the Figure 4.11 is a portion of the frozen waveform. The symbols on the screen were described briefly
on the screen.
Figure 4.11 (a) ECG Frozen Waveform
Figure 4.11(b) EEG Frozen Waveform
 When the system setting for the freezing waveform is “ALL”, the Freeze key will freeze the upper
5 waveforms.
4.2.2 Operation Instruction
The operation can use the Navigation Knob to analyze the ST segment waveform, i.e. measuring the difference
between the ST segment value and the referenced value. The value is displayed after the measure on “ST + 0.000
mV”. The operation is carried out in 4 steps.
First, rotate the Navigation Knob to move the base point (the red cross) horizontally to base line point (the base
line is between the Q wave and the P wave). At this point, the frozen screen shows “ST+0.xxx mV, Set Base, Dirc
Hor”
Second, press the Navigation Knob. The screen shows “ST+0.xxx mV, Set Base, Dirc Ver”. Then rotate the knob
to move the base point vertically to the base line point.
Third, press the Navigation Knob again. The screen shows “ST+0.xxx mV, Set ST, Dirc Hor”. Rotate the knob to
move the ST point (the yellow cross) horizontally to the point to be measured on the ST segment.