Dräger Atlan A100 User Manual

324 Instructions for use | Atlan A100 (XL), A300 (XL), A350 (XL) SW 2.1n
Principles of operation
16.5 Breathing gas climate control when using the internal
breathing system
The patient’s expiratory gas is fed back into the breathing system and the majority
of it is guided through the CO
2 absorber, where the CO2 is eliminated in a chemical
reaction which also produces heat and water. During the further procedure, the
patient gas heated and humidified in this way is enriched with the fresh-gas flow set
at the gas mixer and used for inspiration. For further information see: "Breathing
system and adjacent gas-carrying components", page 56.
In addition, the device is equipped with a breathing system warmer. The breathing
system warmer reduces the condensation of water in the breathing system and
compensates for the heat loss caused by the added fresh gas.
When the breathing system warmer is switched on, its heat output is based on the
measured ambient temperature. The lower the ambient temperature, the higher the
heat output.
The breathing system warmer can be switched off manually in the system setup.
In standby and in operation modes without fresh-gas supply via the breathing
system, the heat output is reduced.
In the following situations, the breathing system warmer is switched off
automatically:
– In battery operation
– In standby outside of the configured OR working hours
16.6 Minimum O2 delivery (SORC)
Devices with 3-gas mixers are equipped with a minimum O2 delivery function
(SORC) which ensures that a minimum quantity of oxygen is delivered when nitrous
oxide is delivered at the same time.
With electronically controlled gas mixers, the minimum O
2 delivery is controlled via
the software. With mechanically controlled gas mixers, the minimum O
2 delivery is
controlled via the integrated SORC.
Gas mixer Minimum FG O
2
concentration
Minimal 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
automatically changes with it.

Dräger Atlan A100 Specifications

General

Brand	Dräger
Model	Atlan A100
Category	Medical Equipment
Language	English