Saadat Respina P1 User Manual page 43

Press and hold this button to keep ventilation at the end of inspiration phase of current
respiratory cycle (Mandatory or Supported breaths). If the button is released before the end of
inspiration phase, Inspiratory Hold will not be performed.
The maximum duration of Inspiratory Hold maneuver is 20 sec. As soon as releasing the
button, Inspiratory Hold procedure will terminate.
In ventilation modes comprising mandatory and assist-control breaths (SIMV modes), total
duration of maneuvers in two mandatory breaths should not be greater than 20 seconds.
When this button is pressed, some mechanical parameters are calculated more accurately.
During Inspiratory Hold maneuver if the pressure or volume of delivered air violates the
alarm limits, Inspiratory Hold procedure will be stopped and relevant alarm (pressure or
volume) will be activated. Inspiratory Hold maneuver will not cause Apnea.
Before the end of inspiration and initiation of Inspiratory Hold if the pressure or volume of
delivered air violates the alarm limits, the inspiration phase will be completed and Inspiratory
Hold will not be performed. "Inspiratory Hold" is displayed on the screen as long as the
button is pushed.
It is not possible to change the ventilation mode, setting parameters and using the membrane
keys during inspiratory hold maneuver.
 P0.1
This parameter is used to determine patient ability to be weaned from mechanical ventilation.
It measures the negative airway pressure generated during 100 msec of inspiration occlusion.
The maximum duration of this maneuver is 10 seconds.
Wait until the pressure of 0.5 cm water falls below base pressure (pressure after occlusion).
This pressure is considered as P1 and the pressure of 100ms after P1 is considered as P2. The
maneuver terminates in P2 and the inspiration resumes. If P1 is not detected after 10 s
inspiration begins immediately. The pressure difference between these two points is
displayed as the measured parameter P0.1.
If user press Stop button during the maneuver, the maneuver will terminate and normal
ventilation will resume. In this condition P0.1 value is not calculated. The maneuver will not
be performed if the device is set to an exhalation time of less than 350 ms.
The system leakage may lead to inaccurate measurement.
In A/C, SIMV, PRVC and APRV modes a mandatory breath will be delivered to the patient
after this maneuver. In PSV/VSV modes the maneuver will be followed by an assist-control
breath. Since Apnea Backup is only available in PSV/VSV modes and respiratory effort by
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