Covidien Puritan Bennett 540, User Manual, Page: 18 / 141

Safety Information
1-6
Puritan Bennett 540™ Ventilator User’s Manual
Precautions Regarding Settings
WARNING
•
Before starting ventilation, ensure that the device is properly assembled and that the air inlet, cooling
vents, and alarm sound diffusion holes are not obstructed. Ensure also that the patient circuit is of the
proper configuration (double or single limb), properly connected to the ventilator, and that the circuit
hoses are neither damaged nor compressed and contain no obstructions or foreign bodies.
•
Do not allow a patient to remain connected to the ventilator when ventilation is stopped, because a
substantial quantity of expiratory gas, primarily carbon dioxide, may be inhaled by the patient. In
some circumstances, inhaling carbon dioxide may lead to under-ventilation, suffocation, and serious
injury or death.
•
Alarm volume should be adjusted with respect to the ventilator’s operating environment and so that
the patient's caretakers can hear the alarms. The audible alarm vents located at the front of the device
should never be obstructed. The alarm can be paused with the Alarm Pause function by pressing the
ALARM CONTROL key twice once the alarm has been declared.
•
Monitor the patient's state of health in order to ensure that the ventilator’s settings are always suited to
the patient’s current physiological requirements.
•
In the case of pediatric use, ensure that the adjusted tidal volume is compatible with the needs of the
child.
•
Ensure that the tidal volume setting in VC is compatible with the needs of the patient.
•
Do not conduct the ventilator alarm test while the patient is connected to the ventilator. Switch the
patient to an alternate means of ventilation before testing.
•
If APNEA TIME is set to a value higher than 60/Control R then the APNEA alarm will not activate.
•
Setting Alarm limits to extreme values can cause the ventilator alarms to malfunction.
•
Adjustable alarms should not be systematically cancelled; instead, they should be adjusted according
to the needs and condition of the patient.
•
A continuous alarm condition will be activated if the ventilator power switch is turned off while
ventilation is in progress. When the power switch is turned back on again, the ventilation will resume
without having to press the VENTILATION ON/OFF button.