BIS Alarm Messages
Monitoring Bispectral Index (BIS™)
5-12 Efficia CM Series Rack and Modules Instructions for Use
To perform a manual Impedance test.
BIS Alarm Messages
Refer to Chapter 9, “Specifications,” for the Technical and Physiological alarms.
Maintenance
The BIS module is designed so that no periodic adjustment or calibration is required.
Suggested routine maintenance includes: periodic checking of cable integrity, and
checking leakage current.
Replace the PIC (Patient Interface Cable)
The Patient Interface Cable (also known as the PIC cable) is considered a consumable
part of the system and is expected to wear out due to normal usage. The internal wires
and/or connector contacts may fail with fatigue over time or become contaminated with
foreign material. This is an expected occurrence, as it is with any equipment that utilizes
lead wires or patient connection cables. Therefore, it is recommended that the PIC cable
be tested on a periodic basis and replaced if it has been in service for more than two
years.
The PIC cable date of manufacture is printed on each cable and is located on a white
label wrapped around the PIC cable. The manufacturing date code is identified in one of
the following methods:
“PIC+ mmddyy” (month, day, year)
“PIC+ mm/dd/yy” (month, day, year)
“nnnnnnwwyy” (where ww is week and yy is year)
Replacing the PIC cable is an important routine maintenance action which will improve
the reliability of the BIS monitoring system.
Instructions on replacing the PIC cable are included in the Medtronic Instructions for Use,
should replacement be necessary.
Step
1
Open the BIS numeric pane.
2
Select the Sensor tab
3
Select Sensor Verification, Start
Results from the latest impedance check are displayed on the Sensor tab. If
“No Record” is displayed, an impedance check has not been previously
performed.
Since the first impedance test of a sensor is mandatory and cannot be
canceled, the Cancel button is not displayed for the first test.
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