18
User Manual
Selection of the correct radio frequency (HF) mode
ATTENTION
All surgical applications with radio frequency need local or block anaesthesia. Make sure the tissue is moist.
Cutting - CUT MODE
This mode – with a permanent power flow – is best rated for clean cuts in tissue without coagulation. In this mode cutting is with
marginal heat and little hemostasis and can be used near to bones or to the periost tissue to avoid shrinking processes of the
tissue.
Histological examinations can be done in this mode as well.
Hint:
Activate the electrode by pressing the foot switch before touching the tissue. Then a regular cut will be produced from the
beginning.
Cutting / Coagulation - CUT / COAG MODE
This mode allows the precise cutting and simultaneous coagulation of the cut surface. Clinically the coagulation zone is marginal,
but allows an effective hemostasis, does not disturb the primarily wound healing and disappears spontaneous after the wound is
healed. These cuts do not need suturing, thus this mode is very effective in cosmetic surgery.
Hint:
Activate the electrode by pressing the foot switch before touching the tissue. Then a regular cut will be produced from the
beginning.
Neutral electrode = NE
When operating the HF mode, it must always be worked with the connected NE. This ensures an optimal power during use.
The NE must be placed between the back of the patient and the treatment chair, as close as possible to the head..
Prepare the device for operation and folow the steps mentioned below.
1. Select a piece of fresh, lean beef. Veal is not suitable, because itdoes not change color when cut with an electrode. Because of its
cell structure pork is also not suited. Wait until the beef has obtainedroom temperature.
Make sure that the meat is placed on the plugged-in neutralelectrode. If this is not the case the waves cannot derivate and,
consequently you cannot proceed with the exercise.
2. Insert the electrode of your choice (Multi Tip, loop, diamon,d etc.) into the hand piece.
3. Turn the intensity control dial to 8.
4. Push the toggle switch to
Cut
5. Activate the foot switch
6. Make several incisions of different lengths and depths with even, brushing movements. Then take the energy from the electrode
and look at the result. You will notice that the intensity adjustment wastoo high, which caused sparks and remarkable discolo-
ration alongthe cutting line.
7. Reduce the intensity setting to 1. You will notice that the electrode will either cut only if it is dragged and pulled through the
meat, or does not cut at all. If a cut is possible at all, bits and pieces of meat will get caught on the electrode.
8. Repeat the above described process with slightly increased settings, until you reach the point at which discolorations and visible
discharges of sparks no longer appear. The tip of the electrode should not encounter resistance. The cut should be precisely
even, without the occurrence of a discharge of sparks and without the necessity to drag the electrode. Continue with your
endeavors by executing slow, intermediate and faster cuts for each particular setting in order to achieve the necessary expertise
and confidence you will need for the surgery of your patients.
9. Turn the toggle switch to cut with simultaneous coagulation and repeat the exercises. You will see that cuts with the slightly
modified wave require a higher setting than when the fully filtered wave is used. This is normal and should be taken into con-
sideration for the later work on the patient.
Practical exercise on a beef model
