16
Safety Instructions for ECG Monitoring
Use the same type electrode on a patient. If skin rash or other unusual symptom occurs, remove electrodes
from patient. Do not attach electrodes on the patient with an inflammation of the skin or scores on skin.
Gima Vital Signs Monitor can only be equipped with ECG leads provided by our company; using ECG leads
supplied by other companies may cause improper performance or poor protection while using defibrillator.
Electric parts of electrodes, leads and cable are forbidden to contact any other conductive parts (including
ground).
Gima Vital Signs Monitor can resist against defibrillator and electro-surgical unit. Readings may be inaccu-
rate for a short time after or during using defibrillator or electro-surgical unit.
Transient caused by cable circuitry blocks while monitoring may be similar to the real heartbeat waveform,
as a result resistance heart rate alarm rings. If you put the electrodes and cable in proper places according
to this manual’s instructions and the instructions for using electrode, the chance of this transient occurring
will be decreased.
Besides the improper connection with electro-surgical unit may cause burns, the Gima Vital Signs Monitor
may be damaged or arouse deviations of measurement. You can take some steps to avoid this situation,
such as do NOT use small ECG electrodes, choosing the position which is far away from the estimated
Hertzian waves route, using larger electro-surgical return electrodes and connecting with the patient pro-
perly.
ECG leads may be damaged while using defibrillator. If the leads are used again, please do the functional
check first.
When removing the ECG cable, hold the head of the connector and pull it out.
When the Gima Vital Signs Monitor is inoperable due to an overload or saturation of any part of the ampli-
fier, it will prompt “Lead off” to remind operator.
No predictable hazard will be caused by the summation of leakage currents when several item of Gima Vital
Signs Monitor are interconnected.
Cardiac pacemaker pulse inhibition function is available while calculating heart rate, this function is always
effective on all filter settings for ECG monitoring and it can not be disabled by user.
3.4.2 Blood Pressure Cuff Connection
1. Connect the cable to the right-panel connector marked with the NIBP icon.
2. Select the appropriate cuff (see below) and wrap around the patient’s upper arm.
Cuff requirements:
1) An appropriate cuff should be selected according to the size of the subject. The cuff width should be 2/3
of the length of the upper arm. The cuff inflation part should be long enough to permit wrapping 50-80%
of the limb concerned.
Note:
When putting on the cuff,wrap it around the upper arm evenly to appropriate tightness.
2) Remember to empty any residual air in the cuff before the measurement commences.
3) Locate the cuff in such a way that the “
φ
” mark is at a location where the clearest pulsation of brachial
artery is observed.
4) The cuff should be tightened to a degree where insertion of one finger is possible.
5) The lower end of the cuff should be 2cm above the elbow joint.
3. Patient position while taking the blood pressure measurement for correct result:
• Comfortably seated
• Leg uncrossed
• Feet flat on the floor
• Back and arm supported
• Middle of the Cuff at the level of the right atrium of the heart
Figure 3.7 Cuff Placement
• Pressure Accuracy Verification
Pressure Accuracy Verification is a function to inspect the accuracy of pressure measurement by the NIBP
module inside the device. Technician or equipment manager should do pressure accuracy verification every
half year or year in order to check if the pressure measurement still conforms to the requirement of product