298 Instructions for use | Atlan A100 (XL), A300 (XL), A350 (XL) SW 2.1n
Technical data
15.22 Gas exchange times for concentration changes
Typical gas exchange times (T0...90) at the Y-piece of the breathing circuit during an
oxygen concentration change from 21 Vol% to 100 Vol% in volume-controlled
ventilation at different O
2 fresh-gas flows:
Breathing system, dry, with filled
reusable CO
2 absorber
Peak flow in
use [L/min]
Resistance [hPa (cmH
2O)]
Man / Spon
Inspiratory Expiratory
Without breathing circuit and inspi-
ratory filter
60 –3.7 4.8
30 –1.5 2.9
15 –0.3 2.1
2.5 0.6 1.5
With breathing circuit for adults
MP00301, inspiratory filter
MP01730
60 –5.8 5.5
30 –2.0 3.1
With breathing circuit for pediatric
patients MP00331, filter MP01815
on Y-piece
15 –2.2 3.7
With breathing circuit for neonates
MP00333, filter MP01815 on
Y-piece
2.5 0.4 1.8
Gas exchange times [min] at the
following O
2 fresh-gas flows
2 L/min 4 L/min 8 L/min 2 L/min
+ O
2 flush
Adults
Test lung MP02400, breathing
circuit MP00301,
VT = 500 mL, RR = 10 /min,
I:E = 1:2, PEEP = Off
7:50 3:25 0:48 0:41
Pediatric patients
Test lung MP02400, breathing
circuit MP00331,
VT = 300 mL, RR = 20 /min,
I:E = 1:1.5, PEEP = Off
6:05 3:08 0:37 0:24
Pediatric patients
Test lung MP02400, breathing
circuit MP00331,
VT = 100 mL, RR = 20 /min,
I:E = 1:1.5, PEEP = Off
2:46 1:27 1:18 0:34
Neonates
Test lungs 8409742 (3x),
breathing circuit MP00333,
VT=30mL, RR=30/min,
I:E = 1:1, PEEP = Off
2:08 1:44 1:37 0:32