Monitoring
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Instructions for use Primus Infinity Empowered SW 4.5n
Automatic agent alarm activation
The lower alarm limit of an anesthetic agent is in-
tended to help the user prevent patient awareness
during a procedure. Examples of problems which, if
ignored or unnoticed, could lead to patient aware-
ness include leaks in the breathing circuit, an incor-
rectly fitted vaporizer or an insufficient anesthetic
gas supply to a vaporizer.
The alarm limits for the anesthetic agents have to
be activated manually and are often not used for
that reason. Primus Infinity Empowered provides
an alarm management system for the xMAC level
which is automatically activated when the expira-
tory xMAC reaches about 0.3.
After activation (A), the alarm limit adapts to the
level of the anesthetic agents used. It adapts only
to increasing xMAC values. Primus Infinity
Empowered generates an advisory message MAC
low as soon as the expiratory xMAC value falls be-
low the alarm limit (B).
Without confirmation, the priority is automatically
set to "Caution" after 30 seconds. When the alarm
message is present, the alarm limit menu can open
automatically with the confirmation field for the
MAC low OK? alarm already preselected. The
user can now confirm the alarm message by press-
ing the rotary knob.
The Automatic Agent Alarm Activation can be con-
figured in the default configuration in Standby.
085
t
1.0
0.3
A
B
C
xMAC
insp. xMAC
exp. xMAC
lower alarm limit
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