Instructions for use Perseus A500 SW 2.0n 269
Principles of operation
Influence of patient category, weight, and age on device behavior
Influence of patient category
– Alarm limits and start settings for therapy
– Volumeter scale
– Flow measurement and software algorithms to
suppress artifacts
– Maximum duration of a pressure-supported
breath
Influence of the ideal patient weight and
patient height
Ideal patient weight describes the portion of the
body that is relevant to setting the ventilation
parameters (patient body weight minus assumed
excess fat).
In the Adult and Ped patient categories, the ideal
patient weight is calculated from the entered
patient height.
In the Neo patient category, the ideal patient
weight is equal to the entered patient weight.
The calculated ideal patient weight affects:
– Start settings for tidal volume VT
– Start settings for respiratory rate RR
– Start settings for VT and MV alarm limits
– Flow trigger
VT and RR are only dependent on the ideal patient
weight when the Ideal body weight function is
selected in System setup > Therapy, see
page 157.
Changing the patient weight during an automatic
ventilation has no effect on the current ventilation
settings.
Influence of the patient age
During operation, the set age influences:
– Calculation of MAC value
Infinity ID accessory support
Perseus can be operated with accessories with
Infinity ID functionality.
– Infinity ID breathing circuit
– Infinity ID WaterLock 2 water trap
– Infinity ID flow sensors
– Infinity ID CLIC absorber
The Infinity ID functionality can be configured,
see page 169.
Infinity ID functionality
WARNING
If no Infinity ID accessories are used, the
additional functions such as exchange
interval monitoring and anti-interchange
security are not available.
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