Dräger Julian - Anesthetic Agent Identification and Display; Calculating the MAC Values; MAC Configuration; O 2 Linearity Test

O2 Linearity Test
● First perform "100 vol% O2 calibration".
Then:
● Turn dial knob to select the line
»linearity test O2«
and press to confirm.
After approx. 20 seconds:
● Display (example):
O2 21 vol.%
A displayed value in the range between 18 and 24
vol% is acceptable.
If value is outside this range, the O2 sensor is
defective or spent (replace O2 sensor, see
page 119).
MAC configuration
Anesthetic agent identification and display
Julian automatically identifies the anesthetic agent used
and adjusts the measurement and monitoring of the
anesthetic gas concentration to suit the gas identified.
If there is a mixture of two volatile anesthetic agents,
the concentration of the secondary anesthetic agent is
displayed from a MAC value of 0.1 MAC upwards. The
gas with the higher expiratory MAC value is displayed
above the secondary gas.
A secondary anesthetic agent becomes the main
anesthetic agent if its MAC value exceeds the MAC
value of the main anesthetic agent by 0.2 MAC.
A mixture of more than 2 volatile anaesthetic agents
cannot be reliably detected.
Calculating the MAC values
Julian calculates the MAC value (Minimum Alveolar
Concentration) from the linear total of volatile anesthetic
agents measured and N2O. The measured values used
are the end-expiratory concentrations. Partial pressures
are taken into account.
Age-corrected MAC values are calculated according to
W. W. Mapleson, British Journal of anesthesia 1996, pp.
179-185.
Configuring in Standby Mode
Selection of Anesthetic Agent
Operating Instructions Julian SW 3.n
103
SpO 2
CMV
SpO2
et
CO
2
38
98 67
6.0
10
MV
Freq
600 10 10 0251.0050
alarm
limits
auto set
limits
alarm
info
list
config.
O%
2
L/min
PEEP Freq. V T
mL
T:TIP I
%
P max
Fresh Gas O + N O2 2
curves
cmH
2
O
bpm
cmH
2
O
1:2.0
O
2
45 41
2
NO
53 51
Fi
Fet
Iso.
0.8 0.6
Enf.
0.6 0.5
MAC (age: 36)
1.3
T
I
:T
E
CO
2
40
0
PAW
0
20
✓
✓
Standby / Configuration
O -sensor 2
21 Vol.%
gas
sensor
more
O -sensor 2
100 Vol.%
calibration
Calibrate with 100 Vol.% O first,
2
then expose the sample line to
ambient air for about 2 minutes.
O Vol.%
If the displayed value is outside
the range 18- 24 Vol.% O ,2
the sensor is defective.
2 21
linearity
test O
2
After test, confirm !