Sorc (Sensitive Oxygen Ratio Controller); Fresh Gas Failure Detection - Dräger Primus Infinity Empowered Instructions For Use Manual

SORC (Sensitive Oxygen Ratio
Controller)
100
90
80
70
Setting ranges
60
50
x
40
30
20
10
0
0.5
0.2
Fresh-gas flow [L/min]
Primus Infinity Empowered is fitted with an elec-
tronic O minimum delivery system to avoid hy-
2
poxic gas mixtures when N
gas. For fresh-gas flows greater than 0.8 L/min, the
minimum O concentration is limited to 25 %.
2
At fresh-gas flows below 0.8 L/min, the O
tration is automatically increased to a value corre-
sponding to an O flow of 200 mL/min. If this control
2
mechanism is activated, the O
highlighted with a yellow background in addition to
the active settable value. The minimum oxygen de-
livery consequently equals 200 mL/min when using
N O as carrier gas.
2
The SORC function is not active when Air is se-
lected as carrier gas and 100 % Air can be metered
throughout the entire flow range.
Instructions for use Primus Infinity Empowered SW 4.5n
0.8
(maximum)
O is selected as carrier
2
concen-
2
% value is also
2

Fresh gas failure detection

During operation, Primus Infinity Empowered
checks that the piston cylinder unit has a sufficient
level of fresh gas.
If a sufficient level of fresh gas is not possible, the
system first displays message FG LOW OR LEAK.
In addition, alarm P
VOLUME NOT ATTAINED is displayed if the
system is unable to maintain the defined
ventilation.
To ensure continued ventilation, the anesthesia
machine will use ambient air to supplement the gas
volume if it is too low. This may change the gas
18.00
composition. Carefully check the gas composition.
WARNING
Risk of patient awareness
If a complete gas supply failure occurs, fur-
ther operation is guaranteed by supplying the
anesthesia machine with ambient air. Anes-
thetic agents will no longer be delivered and
the inspiratory gas composition will be di-
luted.
Carefully monitor the gas mixture and, if nec-
essary, use IV anesthetics.
DrägerService can change the behavior of the de-
vice so that it does not use ambient air for supple-
menting the gas volume. The device will then ven-
tilate with limited V
Increase the fresh-gas flow.
Seal any possible leaks.
Operation
NOT ATTAINED or
INSP
or P , if possible.
T INSP
97