breath will be delivered with the inspiratory time, rise time and pressure setting set by
the operator.
5.4.4.6 PCV(A+TgV) – Assisted Pressure Controlled Ventilation with Target
Volume
The PCV(A+TgV) mode acts like the PCV(A) mode, but with an added regulation of
the pressure. Target volume is a feature that automatically adapts the pressure to make
sure that the ventilator delivers the desired set target volume to the patient. The deliv-
ered volume is compared to the set target volume on a breath by breath basis. The deliv-
ered pressure for the next breath will be increased or decreased depending on the
difference between the delivered volume and the set target volume. Automatic pressure
adjustments will be made in between two adjustable limits (min pressure and max pres-
sure) in order to deliver the optimal support to the patient.
5.4.4.7 PCV-MPV– Pressure Controlled MouthPiece Ventilation
Mouthpiece Ventilation
This mode is tailored specifically for those patients that use mouthpiece interface
together with pressure controlled ventilation.
It is available in Adult patient mode only.
In MPV breath mode it is possible to set Breath Rate to zero so that breaths are only
initiated when the patient triggers them using the mouthpiece. The PEEP setting is not
available but always set to Off so that no air blows from the mouthpiece when no breath
is being delivered.
As the patient is not always connected to the ventilator several of the surveillance func-
tions are not working in the same way as in other modes:
• Disconnection alarm is not available in MPV mode.
• Low Pressure alarm is only active during breaths.
• Apnea alarm is possible to set to longer times and is an important mean of surveil-
lance to make sure that the patient gets ventilation support regularly.
When switching to MPV mode all alarms, except from High/Low Pressure Alarms, are
automatically switched off to avoid false alarm triggering (when changing between pro-
files the alarm settings does not change to Off, but stays as defined in the profiles)
5.4.4.8 CPAP – Continuous Positive Airway Pressure
In CPAP mode the Vivo 45 is applying a continuous positive pressure to the airways.
The flow will automatically be adjusted to maintain the set CPAP level.
5.5 Functions and Parameters in the Vivo 45
The parameters used for controlling the breathing by the Vivo 45 are described below.
See also 8.2.3 Parameter Specifications, page 143 for detailed parameter data.
Depending on the setup for Home mode adjustment, parameters may not be available
or have limited ranges when the Vivo 45 is in Home mode.
64 How to Use the Vivo 45
Vivo 45 User manual
Doc. 006149 D-3
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