O
2
Inspiration time (Tinsp) and breathing frequency
(f)
(the parameters for breathing cycling can be
configured, see chapter 4.4.2)
Positive end expiratory pressure (PEEP)
Ramp time
Trigger
Flow limitation (in NEO mode only)
Tab. 32: nPC-ACV+
DUOPAP 7.3.2.9
DUOPAP is a pressure-controlled, timed ventilation support mode for
both mandatory and synchronized ventilation. This ventilation mode
features two freely selectable time windows Tinsp and Texp (the
parameters for breathing cycling can be configured, see chapter 4.4.2)
and two independently selectable pressure levels that allow the patient to
breathe freely at any time.
Due to the special regulating characteristics of the integrated turbine, the
flow is regulated when spontaneous breathing activity of the patient is
detected. This is to keep the selected airway pressure constant while
simultaneously allowing spontaneous breathing. The mechanical
ventilation portion is the result of the pressure difference between the two
selected levels and the resulting breathing volume. The resulting pressure
difference Δp causes patient gas flow. The inspiratory pressure increase
which can be set in the »Ramp time« field determines how the ventilation
pressure reaches its maximum value within the inspiration time »Tinsp«.
To adapt the patient's spontaneous breathing activity even better, the
corresponding pressure changeovers can be synchronized both from the
lower to the upper or from the upper to the lower pressure level.
For this purpose, the »Trigger« field is used to set the trigger function.
The flow trigger is used to initiate the changeover from the lower to the
upper pressure level within a trigger window.
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