Operator's Manual

Table Of Contents
Diagnostics
BIS™ Advance Monitor
monitor fails the DSC Self-Test, consult
BISTechnicalsupport@medtronic.com for the next steps to take to continue
working with the monitor.
7.1.2. EEG Filters
The monitor automatically turns on EEG filters in order to filter out undesirable
interference from the raw EEG signals.
The notch filter handles both 50 and 60 Hz interference. The EEG filters for the display
support the following modes: ON: 2 - 70 [Hz]; OFF: 0.25-100 [Hz]. The EEG filters also
include high and low pass filters.
The user may want to view the EEG signals without filters, to aid in troubleshooting in
case of problems. If so, the filters may be turned off by the user. For instructions on
how to turn off the filters, reference 3.15.3.2 EEG Display on page 131.
7.1.3. Impedance Checking
When a BISx module and sensor are connected to the monitor, the BIS™ Advance
monitor continually checks impedance levels automatically by generating a 128 Hz
test signal.
If the user is actively monitoring a patient, but is experiencing interference from other
equipment, the user may want to turn off this 128 Hz impedance test signal to
reduce the interference. For instructions on how to turn off the automatic
impedance check, reference 3.15.3.3 Impedance on page 133.
For additional information about impedance , reference 7.5 Glossary on page 223.
7.1.4. Artifact Detection
The BIS™ Advance monitor automatically performs artifact detection. There are no
user-changeable settings regarding artifact detection.
If no artifacts are detected, monitoring will proceed. If the monitor detects an artifact,
a message indicating Excessive artifacts in signal will appear on the message bar
at the bottom of the screen. For four-channel monitoring, the message shall appear if
artifacts are found in data from at least one of the hemispheres.