Principles of operation
258 Instructions for use Perseus A500 SW 2.0n
Description of the ventilation modes
Meaning and function of the therapy controls
Therapy controls Meaning / Function
%Tplat Plateau time as a percentage of the inspiratory time Ti in VC - CMV mode
RR Respiratory rate
RRmin Minimum respiratory rate at which supported breaths are applied in Pressure
Support mode.
Insp. term. When the flow falls below this flow value (in % of the measured peak flow), a
supported breath is interrupted.
PEEP/CPAP Positive end-expiratory pressure / Continuous Positive Airway Pressure
Pressure that is always maintained.
∆Psupp Pressure difference of a pressure-supported breath between PEEP level and
inspiratory pressure.
This pressure support is only available if synchronization of spontaneous breath-
ing (Sync. on) is switched on.
When pressure support is switched on, the naming of the following ventilation
modes changes:
Without pressure support With pressure support
PC - BIPAP PC - BIPAP / PS
VC - SIMV VC - SIMV / PS
VC - SIMV / AutoFlow VC - SIMV / PS / AutoFlow
Phigh Upper pressure level in APRV
Pinsp Inspiratory pressure
Plow Lower pressure level in APRV
Pmax Upper pressure limit in volume-controlled ventilation. When this pressure is
reached, the breath is held at this level until the set inspiratory time Ti is
reached.
Trigger Flow that, when exceeded, triggers a supported breath
Thigh Period of time in APRV during which the upper pressure level is maintained.
Ti Inspiratory time
Tlow Period of time in APRV during which the lower pressure level is maintained.
Slope Period of time during which a pressure rise from the PEEP or CPAP pressure to
the inspiratory pressure or PSV pressure takes place. This time determines the
steepness of the rise in pressure from the lower to the upper level.
VT Tidal volume
To Next Page
Loading...
