Medin medinCNO, Руководство пользователя

Страница: 54 / 68


+49 8142 448 460
info@medin-medical.com
www.medin-medical.com
medin Medical Innovations GmbH
Adam-Geisler-Str. 1
D-82140 Olching
OP_medinCNO EN
Rev 12 Stand 06.03.2019
54 von 68
(2) After start-up, the disconnection and CPAP pressure low alarm is suppressed for the first 5 minutes of operation. However,
the alarms are activated no later than after 5 min or if a CPAP pressure >1 mbar for at least 30 sec has already been measured.
(3) Maximum time delay, including maximum required time to completely re-calculate the average value.
The alarm volume is:
Type of alarm Volume in (dB)
In the case of A-weighted
background noise volume (dB)
High priority (red) 69 53
Medium priority (blinking yellow) 67 52
Low priority (steady yellow) 67 52
Information signal (push) 68 53
Alterable alarms:
The user can set the CPAP pressure low, CPAP pressure high (yellow) alarms and the permitted deviation
interval for the oxygen concentration high / low alarms. This can be done using the setting in the Alarm Settings
menu (see chapter 5.12). After the numerical values are adjusted, the modified settings become active and are
saved when this change is confirmed by pressing the dial. No other alarms can be modified.
Alarm settings upon start-up:
Upon start-up, the CPAP pressure high (yellow) alarm is set to 12 mbar and the CPAP pressure low alarm is set
to 3 mbar. The alarm interval for monitoring the oxygen levels set is always set to ±5% at start-up.
If the medinCNO
®
is restarted, the alarms are reset to these levels. This cannot be changed by the user.
The alarms - CPAP pressure low (yellow) and CPAP pressure high (yellow) analyse whether the average value of
the CPAP readings is outside of the alarm thresholds (can be set under Alarm Settings – see chapter 5.12). Thus
the alarm CPAP pressure high is triggered if the CPAP average value was above the alarm threshold for more
than one second. The alarm CPAP pressure low is triggered if the CPAP average value was below the alarm
threshold for more than 15 seconds.
In oscillation mode, the Disconnection alarm is triggered if the average CPAP value was less than 2 mbar for
five seconds.
Since the Disconnection (only in oscillation mode), CPAP pressure low and CPAP pressure high alarms refer to
the average CPAP pressure, the start and end of the alarm is thus further delayed (see table at the start of the
chapter). This likewise causes the CPAP pressure low or Disconnection alarm during oscillation to not be reset
until the CPAP average value is again above the alarm threshold and not directly after adjusting the alarm
threshold or correcting the problem.
The alarm oxygen concentration high/low is triggered when the measured oxygen concentration is outside of
the set limits. These thresholds are always automatically set by the medinCNO ® in
automatic FiO
2
alarm
thresholds mode at the level of the set interval (can be set under alarm settings; see chapter 5.12) around the
target oxygen concentration. In FiO
2
alarm thresholds manual mode, they are set via manual updating at the
level of the set intervals around the oxygen target value active at this time. The thresholds that are active due
to the current setting are displayed in the target oxygen concentration field as superscript and subscript
numerals. Thus, for example, at a set target oxygen concentration of 30% and an alarm interval setting of ±3%,
the oxygen concentration low alarm is triggered if the measured oxygen concentration is less than 27%, and
the oxygen concentration high alarm is triggered if the measured oxygen concentration is greater than 33%.