Aspect BIS VISTA, Руководство по эксплуатации

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SECTION 7 DIAGNOSTICS AND TROUBLESHOOTING
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7-6
Status Messages: Causes: Corrective Actions:
28
Data unavailable due
to poor signal quality
The signal quality is too low
to accurately calculate a BIS
value. The BIS value and
other trend variables that
are adversely affected by
artifact are not displayed
1.
Artifact, such as those
generated by motion or
eyeblinks, is causing loss
of EEG recognition.
2. EMG Bar indicates
electrical activity that
may be interfering with
EEG recognition.
3. PIC is defective.
4. BISx is defective.
Note : This message may
occur as the results of
artifact (non-EEG signal)
such as those generated
from motion (patient
movement or eyeblinks) or
the presence of electro-
cautery, warming blankets,
or other devices.
1. If ARTIFACT label
appears above the EEG
waveform box, attempt to
identify and eliminate
artifact source.
2. If EMG bar is illuminated,
attempt to determine and
eliminate cause.
3. Verify Sensor Check
passes. If not, replace PIC.
4. Replace BISx Bulkhead
Connector or replace BISx.
BIS Out of Target
Range
29 – Low
30 – High
The BIS has fallen outside
the target range set by the
user.
1. Check patient.
2. Take note of BIS at limit
set by user.