Special features of mode changes
Changing from IPPV or SIMV to PCV
The PEEP setting is transferred to PCV mode from
IPPV/SIMV.
The P
PCV
value is the last set plateau pressure. Its
maximum value is P
max.
If the transferred P
PCV
value is
not at least 5 mbar more than PEEP, the P
PCV
value is
set to PEEP + 5 mbar.
If the Cicero EM is started up in PCV mode, the preset
standby value for P
PCV
is used. For the Flow, the
standby value is always set to 50 l/min. These default
settings can be modified by Dräger Service at the
customer's request.
Changing from PCV to IPPV or SIMV
The PEEP setting is transferred to the selected mode
from PCV.
P
max
is set to the last value applied in IPPV/SIMV
ventilation, provided that P
max
is at least 5 mbar more
than PEEP. If not, P
max
is set to PEEP+5 mbar.
Adjusting P
PCV
and Flow
As with all settings on the ventilator:
●
Press the function key; the existing value and the
proposed new value are displayed in the dialogue
window.
●
Turn the rotary control: the proposed new value
changes.
On reaching the desired setting:
●
Press the rotary control: the new value is set.
Special alarm features
In PCV mode, the system screen is in »
IPPV
« monitoring
mode. There is no special monitoring mode for »
PCV
«.
If the selected ventilation pattern in PCV deviates
considerably from the last pattern selected in IPPV mode,
AMV or pressure alarms may be triggered in the usual
form:
– Yellow/red flashing light
– Tone sequence
– Message in the yellow/red field
– The limit value menu is automatically displayed
– The limit values can be adjusted
If the »
auto set vent. al.
« key is pressed, the system
calculates the new alarm limits from the limits applied in
the last IPPV ventilation mode. We therefore recommend
that you set the alarm limits manually in the limit value
menu.
Anaesthesia ventilation
PCV
P
aw
t
P
PCV
PEEP
00429078
Gradient
(defined by the Flow setting)
Inspiration period
[%]
1
T = ––––
f
iPPV
37
