Vapotherm Oxygen Assist Module, Инструкция по эксплуатации

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3101126 Rev A Vapotherm Oxygen Assist Module Instructions for Use Page 17
Fallback %O
2
Functionality
For short instances of invalid or unreliable SpO
2
readings, an error message is displayed that reflects
the error condition and the Oxygen Assist Module will continue to deliver the calculated %O
2
until the
SpO
2
reading becomes valid and reliable.
While the SpO
2
signal is invalid or unreliable, the %O
2
delivery is set to the greater of the following:
•
The Backup %O
2
setting.
•
The Baseline %O
2
setting, algorithm calculated as the value needed to keep the patient at
SpO
2
set point during the period the Oxygen Assist Module was in Auto %O
2
Mode.
•
The median value of the last three Auto %O
2
values delivered prior to the SpO
2
failure.
The Oxygen Assist Module automatically exits the Auto mode under the following circumstances:
•
Clinical staff changes %O
2
settings at the Precision Flow. The Oxygen Assist Module behaves
according to Auto Mode Override setting.
•
The Oxygen Assist Module detects invalid or unreliable SpO
2
reading as described above for
more than 2 minutes.
If the Oxygen Assist Module has exited the Auto mode, check the patient, sensor placement,
connections and settings. When clinically indicated, place the Oxygen Assist Module back into Auto
mode in the Patient menu.
System Shutdown
1.
On the Patient menu, select End Case.
2.
To power down the Oxygen Assist Module, press the On/Off button to turn off the device, then
remove the provided AC power adapter from the AC wall receptacle.
Trend data is displayed on the Home screen. It shows SpO
2
(blue) and %O
2
(green) trended values,
with the latest values on the right hand side of the display and oldest to the left. %O
2
Alarm Limit is
shown by the dashed red line. The trend display is updated every second. The trend data can also
be viewed on the Trend screen, where the trend display time can be adjusted.
On the
Trend
screen, the trend data can be viewed and display can be modified using the
navigation buttons.
The following variables are logged at one second intervals and stored indefinitely in non-volatile
memory. The non-volatile memory retains its settings even after a loss of power or the system has
been turned off.
•
Time stamp
•
SpO
2
•
%O
2
•
Auto/Manual Mode
Section 10 %O
2
Setup
Section 11 System Shutdown
Section 12 Graphical Trend Display
Section 13 Logging of Variables