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Correct power setting
The success of all radio frequency measures strongly depends on the right choice of electrodes, the mode and the correct power setting.
Correct: The electrode is sliding easily through the tissue without resistance and without spark formation.
Wrong: too low power setting!
The electrode must be dragged through the tissue and spark formation is found. Tissue residuals remain at the electrode.
Wrong: too high power setting!
The electrode is sliding easily through the tissue, but with strong spark formation and discolouration of the tissue.
Setting of level of coagulation (C)
Coagulation with radio frequency is done with high power, usually this is performed not permanently but in a pulsed way. It means that
the power applied to the tissue is not permanent, but in quick cycles with periodical pauses. An average lower power results. The longer
the pauses are in relation to the periods of power output, the lower the power gets. A pulse always is 10 ms long, power emission and
pauses can be adjusted in 8 steps as level of coagulation (C) – see table.
Value of
coagulation
If high voltage is needed due to physiological conditions at the tissue, the level of coagulation should be at the maximum value that
still allows for the application.
Time of pause
(ms)
C 1
1
C 2
2
C 3
3
C 4
4
C 5
5
C 6
6
C 7
7
C 8
8
Example: C5 (1:1.5 ms Pulse, 5 ms Pause)
In principle: The bigger the coagulation area at the tissue, the more power is needed and the
lower is the level of coagulation C that has to be set.
Big areas: C1 - C3, small areas: C4 - C6, very small areas and special applications: C7 - C8, fine control
by power adjustment.
Time of
Maximal possible
pulse (ms)
average power (W)
9
45
8
40
7
35
6
30
5
25
4
20
3
15
2
10
User Manual GB
33
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