Treaton MV200, User Manual

Page: 82 / 222

4.11 Additional functions
4-34
fore the end of inspiration, inspiration continues to the activation of the expiratory trigger. Oth-
erwise inspiration ends when the button is released or time is passed.
In the BiSTEP mode manual breath on the Plow phase is performed as hardware breath with
pressure control with pressure Pi = PS with the current rate of pressure rise.
On the Phigh phase, if Phigh
≥
Plow + PS manual breath is not performed. If Phigh < Plow + PS
manual breath is performed by the usual rules with transition to the expiration by an algorithm
similar to CPAP+PS.
On the Plow phase manual breath is performed similarly to the CPAP+PS mode.
In the APRV mode on the Plow phase manual breath is not performed. If the button remains
pressed, at the transition to Phigh, inspiration to pressure Phigh + PS is performed.
In the APRV mode on the Phigh phase, manual breath is performed to the pressure Phigh + PS,
with transition to the expiration by an algorithm similar to CPAP+PS.
In iSV mode function “Manual Breath” is not available.
Running of " Manual breath " function together with compliance measurement maneveur
and AutoPEEP
If at the inspiratory phase procedure of compliance plateau formation was performed and dura-
tion of inspiratory phase was more than (set inspiratory time + maximum compliance plateau
duration), measurement of compliance and resistance will be not performed.
If manual breath is activated at the moment of formation of AutoPEEP measurement procedure,
procedure will be immediately stopped, AutoPEEP will be not measured and previously meas-
ured AutoPEEP value will be displayed.
AutoPEEP measurement procedure will not be called if manual breath is initiated.
Manual ventilation
If necessary the physician can perform manual breaths with the desired frequency, thereby per-
forming the manual ventilation.
4.11.7 Screen lock
Screen lock function is used for protection against inadvertent changes of parameters. Enabling
is performed via icon on the main screen. At the same time:
•
The whole touch screen is locked, in the bottom part of the screen yellow message "Touch
screen is locked" is displayed.
•
Data output continues as usual. Alarms are not blocked.
•
Encoder and button of temporarily disabling of the audible alarm is not blocked.
Press the encoder to unlock the screen. At pressing the menu "Unlock touch screen? Yes. No."
is shown. If user selects "Yes" line by encoder handle the lock is released. If user selects the
line "No" lock retains.