Functional description
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then returns, released by the patient exhaling into the EPAP (Expiratory Pos-
itive Airway Pressure). If the patient does not exhale for a set period (can be
set by Ti max), the device switches to EPAP latest after the set period.
PCV
/
Bilevel
T
Pressure Controlled Ventilation.
The patient is respirated with a bilevel mode, at which the pressure support is
triggered by the device. The device gives a set, two-stage pressure support,
without the patient's respiratory cycle affecting the frequency of the pressure
values. The switch from IPAP to EPAP is based on the set inspiration time, the
duration of the cycle on the set respiratory rate.
PSV
/
Bilevel
ST
Pressure Support Ventilation.
The patient is respirated with a bilevel mode, at which the pressure support of
the breaths is either triggered by the patient himself or the device. The mode
is similar to the PSV-S / Bilevel S, only that the device runs at a set respiratory
rate and therefore time-controlled respiratory cycles in the absence of any res-
piratory effort on the part of the patient.
APCV
Assisted Pressure Controlled Ventilation.
The therapy mode is similar to the PCV / Bilevel T, only that the respiratory
cycles can also be triggered by the patient. The patient's spontaneous inhala-
tion (trigger) triggers the IPAP and then the device starts the preset respiratory
cycle. If no trigger can be found a timed cycle just like on PCV is given.
