User Manual for Multi-parameter Patient Monitor North-vision Tech. Inc.
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3.3 Connection
3.3.1 ECG Connection
ECG measurement is to collect the ECG signal via the ECG electrodes. Electrode connects the patient and
the lead. The lead connects the monitor. The locations of the electrodes are very important for obtaining
accurate ECG signals.
1. Connect the cable to the right-panel connector marked with the ECG icon.
2. Select electrodes to be used. Use only one type of electrode on the same patient to avoid variations in
electrical resistance. For ECG monitoring, it is strongly recommended to use silver/silver chloride
electrodes. When dissimilar metals are used for different electrodes, the electrodes may be subject to
large offset potentials due to polarization. Using dissimilar metals may also increase recovery time after
defibrillation.
3. Prepare the electrode sites acco
rding to the electrode manufacture’s instructions.
The locations of the electrode are in the following Figure:
Figure 3.5 Locations of Electrodes
Note:
If skin rash or other unusual symptoms develop, remove electrodes from patient.
4. After starting the monitor, if the electrodes become loose or disconnected during monitoring, the system
will
display “
LEAD OFF
” on the screen to alarm the operator.
It might not display ECG wave with 3 leads. The 5 leads should be used to have
ECG wave.
5. The ECG leads and their corresponding locations are as follows:
