Mindray BeneVision N22 User Manual

13 - 6 BeneVision N22/N19 Patient Monitor Operator’s Manual
After approximately 10.9 seconds, a Sat-Second alarm would sound, because the limit of 50 Sat-Seconds would
have been exceeded.
Saturation levels may fluctuate rather than remaining steady for a period of several seconds. Often, the patient
SpO
2
may fluctuate above and below an alarm limit, re-entering the non-alarm range several times. During such
fluctuation, the monitor integrates the number of SpO
2
points, both positive and negative, until either the Sat-
Seconds limit is reached, or the patient SpO
2
re-enters the non-alarm range and remains there.
NOTE
• The SpO
2
Too Low or SpO
2
Too High alarm is presented in the case that SpO
2
value violates the alarm
limits for 3 times within one minute even if the setting of Sat-Seconds is not reached.
13.6.3 Setting the Nellcor SpO
2
Sat-Seconds
To set the Sat-Seconds, follow this procedure:
1. Select the SpO
2
numeric area or waveform area to enter the SpO2 menu.
2. Select the
Alarm tab.
3. Set
Sat-Seconds.
13.6.4 Changing Averaging Time
The SpO
2
value displayed on the monitor screen is the average of data collected within a specific time. The
shorter the averaging time is, the quicker the monitor responds to changes in the patient’s oxygen saturation
level. Contrarily, the longer the averaging time is, the slower the monitor responds to changes in the patient’s
oxygen saturation level, but the SpO
2
measurement is more stable. For critically ill patients, selecting shorter
averaging time will help understanding the patient’s state.
To set the averaging time, follow this procedure:
1. Select the SpO
2
numeric area or waveform area to enter the SpO2 menu.
2. Select the
SpO2 Setup tab.
3. Select
Sensitivity, and then toggle between High, Med and Low, which respectively correspond to 7 s, 9 s
and 11 s.
13.6.5 Monitoring SpO
2
and NIBP Simultaneously
When monitoring SpO
2
and NIBP on the same limb simultaneously, you can switch on NIBP Simul to lock the
SpO
2
alarm status until the NIBP measurement ends. If you switch off NIBP Simul, low perfusion caused by NIBP
measurement may lead to inaccurate SpO
2
readings and therefore cause false physiological alarms.
To set the
NIBP Simul, follow this procedure:
1. Select the SpO
2
numeric area or waveform area to enter the SpO2 menu.
2. Select the
Alarm tab.
3. Select
SpO2 tab.
% SpO
2
Seconds Sat-Seconds
2× 2= 4
4× 3= 12
6× 6= 36
Total Sat-Seconds= 52

Mindray BeneVision N22 Specifications

General

Brand	Mindray
Model	BeneVision N22
Category	Monitor
Language	English