33Functions and Parameters of the Vivo 40
Vivo 40 clinician’s manual
Doc. 003886 En-Us A-1e
4.7 Target Volume
Target volume is a feature that automatically adapts the IPAP to make sure that
the Vivo 40 delivers the desired set tidal volume to the patient.
The delivered volume is calculated and compared to the set target volume on a
breath by breath basis. The delivered IPAP for the next breath will be increased
or decreased depending on the difference between the calculated volume and
the set target volume. Automatic pressure adjustments will be made in between
two settable limits (IPAPmin and IPAPmax) in order to deliver the optimal sup-
port to the patient.
Target volume can be used both in PSV and PCV mode and shall combine the
comfort and leakage compensation of pressure ventilation with the advantages
of volume oriented ventilation.
4.8 The CPAP Mode
In CPAP mode, the device delivers a continuous positive airway pressure during
operation.
The flow is automatically adjusted to maintain the set CPAP level, within the
limitations of the devices flow compensation.
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