SECTION 5 PREVENTIVE MAINTENANCE, CARE AND CLEANING
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5-2
Caution:
Do not autoclave the BISx or Monitor. Autoclaving will seriously
damage both components.
Avoid liquid ingress to the Patient Interface Cable. Contact of fluids
with the PIC sensor connectors can interfere with PIC performance.
Cleaning the Monitor Display
Clean the monitor display screen with a mild solution of detergent and warm water or a
commercial display screen cleaner, available through personal computer dealers. To avoid
scratching the screen, never use abrasive cleaners.
5.2 Maintenance
The BIS VISTA monitor is designed so that no periodic adjustment or calibration is
required. Suggested routine maintenance includes: periodic checking of cable integrity,
system checkout, checking the battery, and checking leakage current. Instructions on
replacing the battery and power supply are included in this section should replacement be
necessary. In the event that the touch screen needs calibration, follow the instructions in
Section 6.1.5.
Caution:
Service or repairs must be performed only by qualified biomedical
technicians.
5.2.1 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 (see section 5.2.3 “System Checkout”) 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.
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