3 • Safety Features
30 / 106
80113-101_V25087
2023-11
Automatic monitoring of the ON time
With proper use, a high-frequency generator is only briefly activated to carry out a cut or
coagulation using a fingerswitch, pedal or AUTO START. This generally only takes a few
seconds. A defect in the unit, in the accessories or in usage may cause the high-frequency
generator to be switched on unintentionally. To prevent major damage being caused by
accidental activation of a high-frequency generator the unit is equipped with a monitor
which automatically monitors the ON time of the high-frequency generator.
When a predetermined maximum ON time is exceeded, the monitor emits a visual and
acoustic signal and automatically switches off the HF generator. However, the HF gen
-
erator can be switched back on at any time, resulting in renewed monitoring of the ON
time. This prevents major damage being caused by the accidental activation of an HF
generator for indefinitely long periods.
Custom adaptation of maximum ON
time
In view of the risk of thermal tissue damage due to the accidental switch-on, a HF gen-
erator which has been switched on accidentally should be switched off again auto-
matically, as far as possible immediately. As the unit cannot automatically distinguish
between the intentional and accidental switch-on of a HF generator, the automatic
switch-off of a HF generator should not take place too quickly as this would hinder the
operating surgeon with cutting or coagulation. Setting of the ON time can only be car
-
ried out by a technician in the service programs.
Protection from operating errors
The unit is intuitive to use thanks to its well-conceived design.
All sockets of the applied part are arranged in the socket strip next to the front panel.
These sockets are designed so that only connectors of the proper accessories can be
inserted (provided that only the accessories supplied or recommended by the manu
-
facturer of the unit are used).
You can connect a monopolar instrument and a bipolar instrument to the unit at the
same time. However, for safety reasons they can only be activated alternately. HF volt
-
age is only ever carried by one socket.
Whenever the power switch is switched on, an automatic test program is run inside
the unit, designed to detect and signal the following defects in the operator controls
of the unit and the connected accessories:
• If a button on the front panel has short-circuited due to an error or was pressed
when the power switch was switched on, this error is indicated acoustically and
by an error number after switching on the power switch.
The user was not informed of a change in maximum ON time
Risk of accidental tissue damage to the patient!
All users must be informed of any change in maximum ON time
at an early stage. That is, before the user works with the modi-
fied maximum ON time for the first time.
The temperature at the neutral electrode site increases during
long and continuous activations; therefore, ensure that the cool-
ing phases between activations are sufficient.
To Next Page
Loading...
