Monopolar Cut; Monopolar Coagulation; Bipolar Cut And Coagulation - Gima DIATERMO MB200 Mode D'emploi

GIMA SpA

1.4 MONOPOLAR CUT

Monopolar cut is the sectioning of the biological tissue achieved by the high-density passage of HF current, which is
concentrated at point of the active electrode. The HF current, when it is applied to the tissue, through the point of the active
electrode, it creates intense molecular heat in the cells so high that explosion of it is caused.
The cut effect is achieved by moving the electrode through the tissue and destroying the cells one after the other. The movement
of the electrode prevents the propagation of the side heat in the tissue, thus limiting to a single line the cells' destruction.
The best HF current for cutting is pure sine wave without any modulation that cuts very smoothly and provides the least thermal
effect with poor haemostasis while cutting. Because its effects can be precisely controlled, it can be used safely without damage
to the bone, but since good coagulation while cutting is one of principal benefits of using electrosurgery a current with a certain
amount of modulation is desirable.
The following rules help the operator to obtain good cutting, however every user must follow first of all his professional
judgement as he does every time in his practice.
•
Keep the tissues moist but not wet
•
Survey the stroke before activate the electrode
•
Keep the electrode perpendicular to the tissue
•
Activate the electrode before making contact with the tissue
•
Maintain clean the electrode's tip (the optional sponges F7520 to clean the electrodes are adviced).
•
Wait at least five seconds before to repeat a stroke.
When the output power is properly set there should be:
•
no resistance to the electrode movement through the tissue
•
no change in the cut surfaces colour
•
no fibers of tissue remained onto the electrode

1.5 MONOPOLAR COAGULATION

Monopolar coagulation is the haemostasis of small blood vessel of the bodily tissue through passing of high frequency current in
correspondence of active electrode. When the current density is reduced and a broad-surfaced electrode is used, to dissipate the
energy over a larger area, the effect is to dry out the surface cells, without deep penetration, resulting in coagulation. These
coagulate surface cells then serve as a layer of insulation, preventing heat derived by successive applications of current from
penetrating too deeply.
The current normally used for coagulation is modulated and depending from the modulation percentage is the smoothness of
cutting, goodness of haemostasis and likelihood of tissue destruction. Deeper current modulation brings to somewhat roughly
cutting and the chance of some slight depth of tissue destruction but more efficient coagulation.
The following rules help the operator to obtain good coagulation: however every user must follow first of all his professional
judgement as he does every time in his practice.
•
Select a ball or heavy wire electrode
•
Locate the bleeder, after have wiped the excess blood from the area, contact lightly the bleeder before activating the
electrode
•
Stop the electrode activation as soon as the tissue blanches to avoid tissue damage.
•
Maintain clean the electrode's tip (the optional sponges F7520 to clean the electrodes are adviced).

1.6 BIPOLAR CUT AND COAGULATION

Bipolar cut consists in the sectioning of the biological tissue due to the passage of HF current concentrated on the tips of the
bipolar forceps.
When the HF current is applied to the tissue, between the two tips of the forceps, an intense molecular heat in the cell is created,
so that the cell explodes.
Bipolar coagulation consists in the hemostais of small blood vessels of the body tissue between the two tips of the forceps.
When the current density is reduced, the drying of the cellular surface is obtained, without deep penetration and its consequent
coagulation. These superficially coagulated cells act as a layer of insulation that prevent the heat, due to successive current
applications, to penetrate too deeply.
Manuale d'istruzioni / Instruction's Manual MA182IGBb
DIATERMO MB200
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