Dräger Atlan A350 - Minimum O 2 Delivery

310 Instructions for use | Atlan A300, A300 XL, A350, A350 XL SW 1.0n
Principles of operation
The following graphic illustrates the Paw high alarm limit as a suitable indicator in
the event of a soiled filter:
Pressure-controlled ventilation modes
If the HME is clear, set the expiratory alarm limit MV low closely below the
measured MV. If the HME is clogged or soiled, the MV low alarm will be triggered
due to the smaller applied and measured expiratory tidal volume VT.
Increasing air trapping (recognizable on the flow waveform as an incompletely
concluded expiration before the start of the next inspiration) indicates a clogging
HME filter. The transparent HME housing allows visual checking of the amount of
sputum. If there are signs (alarm, air trapping, visual check) which suggest clogging
of the HME, check the HME and replace it if in doubt.
17.5 Minimum O2 delivery
The device is equipped with a minimum O2 delivery function which ensures that a
minimum quantity of oxygen is delivered.
41394
&OHDU+0( 6RLOHG+0(
Paw high
Gas mixer Minimum FG O2
concentration
Minimum O2 flow
Carrier gas
Air
Carrier gas
N
2O
Electronically
controlled
21 % 25 % Configurable for each patient cate-
gory, see chapter "Vertical tab
"Fresh gas" (only with electronically
controlled gas mixer)"
When the minimum O
2 delivery
switches on, the FG O
2 therapy con-
trol is selected in addition to the
selected therapy control. When the
active set value is changed, FG O
2
changes automatically with it.