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ESO 2 ICU Ventilator 4 User Manual
Warnings and Cautions
the valve seat; use only a soft cloth.
If the valve seat is damaged, the valve will leak and may
cause serious ventilator malfunction.
CAUTIONS
1. Do not sterilise the ventilator control unit.
Internal components (apart from the patient block
assembly) are not compatible with sterilisation
techniques and damage may result.
The patient block assembly must be removed from the
control unit before sterilisation (see section 6.2.7).
After cleaning and sterilisation, the patient block
assembly must be refitted to the original control unit.
Refer to section 6.2.7.5.
2. For ventilator components which require sterilisation,
peak sterilisation temperatures should not exceed 134
o
C
(275
o
F) to prevent possible damage. (See section 6).
3. Care must be taken not to let any liquid run into the
control unit; serious damage may result.
4. The exhalation valve located in the bellows base
assembly and the paediatric bellows adaptor must be
cleaned and sterilised separately. Note that the bellows
assembly is built into the Breathing module.
5. Always check for correct fitment, and carry out a full
function test ( 4.2.1.3 ) before clinical use, if the bellows
has been removed and refitted for any reason. .
6. Damage will occur to the battery if it is allowed to remain
in a discharged state. Check the battery frequently if the
ventilator is in storage (see Appendix 1).
7. Fresh gas compensation is disabled if:
a) The spirometry system is turned OFF through the
menu system, or
b) The spirometry system is not functioning correctly.
8. Fresh gas mixture compensation is disabled if:
a) The spirometry system is turned OFF through the
menu system, or the spirometry system is not
functioning correctly.
b) The oxygen monitor is switched OFF.
Refer to section 4.1.7.
9. Circuit compliance is not activated until Fresh Gas
Compensation is switched OFF. Refer to section 3.2.
OXYGEN MONITOR
WARNINGS
1. We recommend a calibration check of the oxygen
monitor every time the system is turned on, as a safety
precaution.
2. Do not attempt to open the fuel cell.
The sensor contains small quantities of electrolyte,
classified as a harmful irritant which is potentially
hazardous, and lead.
Used or defective cells must be disposed of according to
hospital, local, state, and federal regulations.
3. ALWAYS check the integrity of the sensor assembly
before use.
4. Once exhausted, the sensor must be disposed of
according to hospital, local, state and federal regulations.
5. The sensor measures oxygen partial pressure, and its
output will rise and fall due to pressure change.
An increase in pressure of 10% at the sensor inlet will
produce a 10% increase in sensor output.
6. The oxygen sensor is not suitable for sterilisation.
If contamination is suspected, fit a new sensor (see
section 6.4) and dispose of the contaminated unit
according to hospital, local, state and federal regulations.
CAUTIONS
1. Do not sterilise any oxygen monitor component.
2. Do not autoclave or expose the sensor to high
temperatures.
3. If the sensor shows signs of being affected by
condensation, dry the sensor with soft tissue.
Do not use heat to dry the sensor.
NOTES
1. The O2 SENSOR FAULT alarm indicates that one of the
following conditions has occurred.
a) Internal electrical fault
b) Software/electronics fault
c) Oxygen sensor fault.
2. The concentration read-out may, in certain conditions of
excess pressure, show a value above 100%.
To accommodate these conditions it is possible to set the
high alarm value up to 105% (see section 5).
3. To maintain maximum sensor life:
a) Always switch off the gas delivery switch after use, to
ensure that the basal flow ceases.
b) Disconnect the breathing circuit after use.
4. The accuracy of flow and volume measurements may be
reduced if the oxygen monitor is not in use.
5. Fresh gas mixture compensation is disabled if the oxygen
monitor is switched ‘off’ in the menu.