HEBU medical HBS 100, Operating Manual, Page: 34 / 141

HBS x-touch 300
34
EN
1.1 Monopolar operation
In the monopolar mode, HF current is applied to the tissue using
an active electrode. The cutting or coagulation effect is caused
by a high concentration of current, i.e. a high current density over
the small surface of the active electrode. This generates an
increase in temperature, causing the water from the tissue
immediately surrounding the active electrode to vaporize.
Depending on the intensity of the HF current, this causes
bleeding to stop or generates a cut in the tissue.
The HF current flows from the active electrode to the neutral
electrode and is distributed over its large surface. This reduces
the density of the current in this area, and generally prevents
unwanted thermal effects at the position of the neutral electrode.
The current flows back to the electrosurgical unit through the
neutral electrode.
1.2 Bipolar operation
In the bipolar mode, the current path is limited only to tissue
located between the two electrodes of a bipolar instrument.
Use of the neutral electrode is not necessary. Bipolar application
does not entail any risk of the current flowing through the patient's
body. Consequently there is no danger of burns due to a poorly or
incorrectly positioned neutral electrode.
Bipolar coagulation is therefore safer than the monopolar method
and is particularly recommended for patients with pacemakers or
for operations on organs with a small diameter.
2 Scope of delivery
HF 9508 HBS x-touch 300
HF 9979-XX
Power cable
Operating instructions in five languages
Device manual in five languages
Service Manual in five languages