Dräger Babylog 8000 plus Instructions For Use Manual page 143

Alarm criteria
Alarm-triggering parameter
Inspiratory O concentration
2
Disconnection
Inspiratory pressure high
CPAP pressure high
CPAP pressure low
Instructions for use Babylog 8000 plus SW 5.n
Alarm criteria
If the measured inspiratory O
4 Vol.% above or below the set value for longer than 25 seconds,
an alarm is triggered.
If the breathing circuit is disconnected or if there is a large leak-
age, insufficient or no ventilation pressure is built up. Detection is
dependent on whether a minimum pressure is reached. This mini-
mum pressure depends on the operating mode and the set values
PEEP and Pinsp. When the device is in IPPV/IMV, SIPPV, or
SIMV ventilation mode, if the airway pressure is not greater than
the minimum pressure
PEEP + (Pinsp – PEEP) / 4 for at least 0.025 seconds in every
breathing cycle, an alarm is generated.
When the PEEP is set to <2.5 mbar (2.5 cmH
extubation may not be detected by the integrated pressure moni-
toring system, and an alarm cannot be triggered. Additional venti-
lation and patient monitoring are therefore necessary.
Airway pressure must not exceed the set pressure limitation during
mandatory inspiration. The limitation may be exceeded by max.
5 mbar (5 cmH O) so that coughing, for instance, will not trigger
2
an alarm. Above the alarm threshold of Pinsp + 5 mbar
(5 cmH O), the pressure-time integral of the excess pressure is
2
calculated. If the pressure-time integral exceeds 0.33 mbar x s
(0.33 cmH O x s), an alarm is triggered. Simultaneously, manda-
2
tory inspiration is interrupted.
Example: Airway pressure rises to 6 mbar (6 cmH
pressure limitation Pinsp and then remains constant. An alarm will
be triggered after 0.33 seconds. If the pressure-time integral con-
tinues to rise after the alarm and exceeds 0.58 mbar x s
(0.58 cmH O x s), ventilation will be interrupted and the breathing
2
circuit will be vented.
When operating in CPAP ventilation mode, if airway pressure is
continuously above the threshold of PEEP/CPAP + 4 mbar
(4 cmH O) for longer than 5 seconds in the expiration phases of
2
the mandatory ventilation modes, an alarm is triggered. Simultane-
ously, the breathing circuit is vented. If airway pressure is greater
than PEEP/CPAP + 25 mbar (25 cmH
will be triggered after only 0.3 seconds.
If airway pressure falls below PEEP/CPAP – 2 mbar (2 cmH
and the pressure-time integral exceeds 6 mbar x s (6 cmH
an alarm is triggered.
concentration FiO is more than
2 2
O), disconnection or
2
O) above the
2
O), the alarm and venting
2
Technical data
O)
2
O x s),
2
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