Saadat Respina P1 User Manual page 73

PEEP value is added to Pcontrol, thus the ventilator maintains the airway pressure on
PEEP+Pcontrol.
Rise time is a parameter that determines the speed to reach the control pressure (Pcontrol)
and has three values, Fast, Med and Slow.
In this mode as
VCV
effort.
High values of Pcontrol or Ti will increase tidal volume delivered to the patient. Any change
in lung compliance and resistance of the patient airway could affect Vti delivered to the
patient.
High limit of Pcontrol is determined in a way that total PEEP plus Pcontrol does not exceed
80 cmH2O.
The pressure curve in PCV mode is shown in the above figure. As you can see the pressure
has a constant value equal to Pcontrol + PEEP in the inspiratory phase that this value is set
by the user.
When the operator adjusts the parameters of a respiratory mode, he/ she is faced with
limitations in setting the upper and lower limits of these parameters, which are due to the
adjustment of other respiratory parameters.
Excessive increasing in pressure or volume could terminate inhalation. In this condition, the
Ti applied by the device may be less than the set value (see the alarms chapter).
Note:
When changing the Rate and Ti parameters, the values of Te and I: E are displayed on the
parameter setting menue.
Note:
During inhalation, if the airway pressure for any reason (such as the patient's cough) exceeds
the value specified for it, the exhalation valve opens and prevents further increase in pressure.
mode the patient could synchronize a mandatory breath with respiratory
Figure 8-3- Pressure curve in PCV mode
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