• The limit for the high-pressure alarm is reached.
5.4.4.2 Pressure Support Ventilation with Target Volume (PSV+ TgV)
The PSV+TgV mode acts as the PSV mode but with an added regulation of the pres-
sure. Target volume is a feature that automatically adapts the pressure to make sure that
the Vivo 45 delivers the desired set target volume to the patient. The delivered volume
is compared to the set target volume on a breath by breath basis. The delivered 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 IPAP and max IPAP) in order to deliver the
optimal support to the patient
See 5.5.13 Target Volume, page 70 for more information about Target Volume.
5.4.4.3 Pressure Controlled Ventilation (PCV)
In the PCV mode the ventilation is controlled by the Vivo 45. This is done at the preset
pressure, breath rate, inspiratory time, and rise time settings set by the operator. The
patient also has the possibility to start a breath through the Inspiratory Trigger. This
patient triggered breath will be delivered with the inspiratory time, rise time and pres-
sure setting set by the operator.
The inspiration stops and an expiration starts in two cases:
• The inspiration time expires.
• The limit for the high pressure alarm is reached.
5.4.4.4 Pressure Controlled Ventilation with Target Volume (PCV+TgV)
The PCV+TgV mode acts as the PCV mode, but with an added regulation of the pres-
sure. Target volume is a feature that automatically adapts the pressure to make sure that
the Vivo 45 delivers the desired set target volume to the patient. For every breath, the
delivered volume is compared to the set target volume. The delivered 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 pressure) in order to
deliver the optimal support to the patient.
See 5.5.13 Target Volume, page 70 for more information about Target Volume.
5.4.4.5 PCV(A) – Assisted Pressure Controlled Ventilation
In the PCV(A) mode the ventilation is controlled by the ventilator, but the patient has
the possibility to start a breath through the Inspiratory Trigger. This patient triggered
How to Use the Vivo 45 63
Doc. 006149 D-3
Vivo 45 User manual
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