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Ventilation
Pressure mode, pressure-controlled ventilation
Pressure-controlled ventilation mode with fixed pressure
limitation PINSP and frequency Freq., as well as with optional
synchronization activation and variable pressure support for
spontaneous breathing efforts (optional).
A continuous pressure is applied to the patient during the
inspiratory time TINSP. The rate at which the pressure curve
rises is pre-set via the rise time TSLOPE. Synchronization and
pressure support are controlled by the sensitivity of the flow
trigger and level of APPS. The maximum time interval for
controlled ventilation is set via the frequency. In order to
maintain a constant frequency, a time interval triggered
prematurely is compensated in the next cycle.
Changes in lung compliance and ventilation parameters
influence the tidal volume.
Synchronized pressure-controlled ventilation
Synchronization is activated by entering a value for the trigger
sensitivity. This can be defined via the soft key »extra
settings«.
1
Press the soft key »extra settings«. The trigger sensitivity
»Trigger« is displayed.
2
Press the soft key »Trigger«. The last value set appears as
default value when the key is activated.
@
Set and confirm the trigger sensitivity with the rotary knob.
When finally confirmed, the indication »sync« in the status
area of the ventilation mode lights up steadily instead of
flashing.
A ventilation stroke triggered by the patient is represented by a
continuous vertical black line in the pressure curve and in the
flow curve (trigger indicator). The active window for the stroke
triggered by the patient corresponds to the last 25 % of the
applicable expiratory time.
The actual trigger status is shown above the keys for the
ventilation parameters.
58
Pressure
Trigger indicator
Trigger indicator
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Instructions for Use Primus SW 2.n
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