Dräger Perseus A500 - Activation of Alarms after Breath Detection; Intelligent Alarm Behavior; Combined Alarms; Suppressed Alarms

Instructions for use Perseus A500 SW 2.0n 147
Alarms
Activation of alarms after breath detection
If no breaths have been detected even after
leaving the Standby or Pause modes, the
breathing gas is monitored with regard to an O
2
concentration that is too low or an anesthetic gas
concentration that is too high, regardless of the
respiratory phase. At the same time, the message
Waiting for respiratory phases is displayed in
the CO
2 waveform, and the symbol "Alarm
temporarily inactive" is displayed beside the
relevant parameters.
Once 2 breaths have been detected, the message
and the symbol disappear. Only then, the
respiratory-phase-dependent O
2, CO2, N2O, and
anesthetic gas alarms are completely activated.
Intelligent alarm behavior
Combined alarms
If multiple alarms occurring at the same time are
caused by the same problem, they are combined
into one alarm.
Suppressed alarms
Some low-priority alarms indicate a fault in a
measurement function. If this measurement
function monitors physiological parameters, alarms
based on these parameters will not be generated.
Example:
Problem Alarms occurring at the same
time
Combined alarm
Several causes of apnea are
present.
Apnea (no flow)
Apnea (no pressure)
Apnea (no CO
2)
Apnea
Faults in multiple components.
This causes failure of a system
function.
Example:
Insp. press. sensor failure
Exp. press. sensor failure
Ventilator failure
Fault Displayed alarm Non-generated alarm
CO
2 measurement is faulty Sample line occluded Apnea (no CO2)