Dräger Julian - Anesthetic Agent Identification and Display; Calculating the MAC Values; Displaying MAC; MAC Configuration

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 anesthetic 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.
Displaying MAC
To activate the MAC display:
● Select column »MAC config.« by turning the rotary
knob and press to confirm.
● Select »MAC display« by turning the rotary knob
and press to confirm.
● Select »on« by turning the rotary knob and press
to confirm.
To select the age correction for the MAC display:
● Select »MAC correction« by turning the rotary
knob and press to confirm.
● Select »on« by turning rotary knob and press to
confirm.
Monitoring
MAC configuration
Operating Instructions Julian SW 3.n
83
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
600 10 10 0251.0050
O%2
L/min
PEEP
cmH O
2
Freq.
bpm
V T
mL
T:TIP I
%
Pmax
cmH O
2
Fresh Gas O + N O22
PAW
40
20
0
Confirm to select Isoflurane.
O
2
-Sensor
21 Vol.%
gas sensor
CMV
calibration
pulse tone
alarm sound
scale
parameters
record
activate monitor defaults
0 1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
adult. child
alarms
settings
✓
✓
T
I
:T
E
1:2.0
default
CO
2
on off
SpO
2
on off
HLM on off
FiCO
2
5
MAC display
on off
MAC correction
on off
age 36
MAC-config.