2 Safety
BOWA-IFU-11779-ARC400-V2.1.0-S0-EN Operating Manual ARC 400 15
For patient protection, avoid touching the patient and any of the following
parts at the same time:
exposed contacts of plug-and-socket connectors;
contacts of fuse holders that are accessible during fuse replacement;
contacts of lamp sockets that are accessible when the lamp is
removed;
parts inside an access cover,
• which can be opened without using tools or
• where a tool is necessary but the use instructions instruct any
operator who is not a member of maintenance staff to open the
cover concerned.
2.3.6. Configuring HF device settings and using
accessories
“An obviously low output value or functional failure of the HF surgical
device in normal operation may be caused by insufficient skin contact of
the neutral electrode or insufficient contact with its connecting cables.”
Therefore, before you increase the output power, ensure that:
the neutral electrode is attached properly;
the working electrodes are clean;
the plug connections are all correct.
Setting the HF device correctly
To prevent inadvertent (thermal) tissue damage during operations on
body parts with small cross sections and in areas with high resistance
(bones or joints), use the bipolar method in these areas.
Set the level of the acoustic signal that sounds when the electrode is
activated so that it is always clearly audible.
Risk of nerve or muscle excitation by low-frequency currents!
During HF surgical operations (especially when an arc is formed), part of
the HF current is converted into a low-frequency current. This current can
trigger muscle contractions in the patient.
To minimize the risk of injury to the patient, set the power and the
effect as low as possible.
Correct use of accessories
Use only insulated accessories.
Check all electrodes for sharp edges and projecting parts before use.
Use only electrodes that are free of defects and in good working order.
Never place active electrodes on or near the patient.
Do not remove hot electrodes from the patient’s body directly after
cutting or coagulation.
Ensure that there is sufficient distance between the patient cables and
the cables of the HF device.
Do not run the patient cable across the patient.
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