Covidien Puritan Bennett 540, User Manual, Page: 76 / 141

Installation and Assembly
4-16
Puritan Bennett 540™ Ventilator User’s Manual
The external oxygen source must also have independent means of flow adjustment from the
ventilator.
4.9 Mounting the Ventilator on a Wheelchair
WARNING
•
Never use the ventilator with an unregulated/unadjustable oxygen source.
•
The connecting hose between the ventilator and the O
2
source must be designed for use exclusively
with medical-grade oxygen. Under no circumstances should this hose be modified by the user, and it
must be installed without the use of lubricants.
•
Disconnect the oxygen supply’s oxygen connector from the ventilator whenever the oxygen supply is
not in use or the connector is not connected to a leak-proof, external oxygen supply. Otherwise, a leak
may occur and compromise the performance of the ventilator.
•
In the event of an oxygen leak, immediately shut down the oxygen supply at its source and keep away
from any incandescent source or other possible sources of ignition. Thoroughly air the room to bring
the oxygen concentration down to normal.
•
To prevent any interference with the internal sensors of the Puritan Bennett 540™ Ventilator, do not
install a humidifier upstream of the ventilator.
Caution
•
The oxygen supply hose ages and degrades even when it not in use and should be replaced periodically. The
exhalation date of the hose may be indicated on the back of the hose’s end piece.
•
The oxygen supply must be shut off whenever ventilation is interrupted. Allow the ventilator to continue for a
few cycles without oxygen whenever ventilation is stopped or started.
WARNING
•
Do not rely solely on the ventilator’s internal battery to sustain the ventilation. Always provide an
alternative external power source.
•
Due to its limited internal battery’s reserve capacity, the ventilator should only be operated
occasionally while powered by its internal battery. Ensure that the internal battery never becomes fully
discharged.
•
Do not operate the ventilator in direct sunlight, near heat sources, outdoors, or near installations where
liquid may pose a risk without first providing adequate protection for the device.
•
Fluid or moisture of any kind must not be allowed to seep inside the ventilator. Particular areas of
vulnerability include the air inlet filter and the cooling apertures located in the side, rear, and bottom
panels of the ventilator.
•
If exhaled tidal volume or exhaled minute volume measurements are required to ensure correct patient
ventilation a double limb patient circuit configuration must be used in order to detect leaks. In this
case, both the High and Low VTE alarm parameters must be properly set to warn in the event of patient
suffocation.
•
To minimize the risk of damage, you must use the ventilator’s Dual Bag to transport the ventilator.
•
Regularly check the cleanliness of the air inlet filter located on the rear of the ventilator. Replace the
filter as often as necessary to maintain cleanliness—even before the recommended replacement period
is over. This is critical particularly when the ventilator is installed on a wheelchair, because
environmental conditions may cause the filter to become dirty more rapidly.