GIMA spa
DIATERMO MB240 – DIATERMO MB380
Manuale d’ Istruzioni / Instruction’s Manual
MA129IGBg
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The most advanced electronic components and circuitry including LSI microcontrollers are applied to provide all the
prerequisite for safe and reliable operation. In this way most of the thermic problems, and the need for cooling fans, very
dangerous for the batterium diffusion in the health care rooms, has been overcome.
Control of the unit is via the front panel keys, knobs and display; mains inlet and on/off switch are on the rear panel.
The type of surgical operation which can be carried out are those where monopolar and/or bipolar electrosurgical cutting or
coagulation is requested.
Use of the
DIATERMO MB380
and
DIATERMO MB240
is restricted to trained medical personnel, and are to be used
only for the purposes set down by the manufacturer.
DIATERMO MB380
and
DIATERMO MB240
consists of the following components:
the generator, or unit
the handpiece with two pushbuttons
the electrodes
the dispersive plate
the pedal double
1.4 MONOPOLAR CUTTING
Monopolar cutting is the sectioning of the biological tissue caused by the passing of high density, high frequency current
concentrated by the tip of the active electrode.
When the high frequency current, by the tip of the active electrode, is applied to the tissue, it creates intense molecular heat
in the cell so that the cell explodes.
The cutting effect is achieved by moving the electrode through the tissue and destroying the cell one after the other. The
movement of the electrode prevents the propagation of the heat laterally in the tissue, thus limiting the destruction to a single
line of cells.
The best current for cutting is pure sine wave without any modulation which cuts very smoothly and provides the least
thermal effect with poor hemostasis 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.
DIATERMO MB380
and
DIATERMO MB240
allows cutting with pure sine wave form as well as with two degrees of
moderate modulation producing blend wave form with different crest-factors so more hemostatic effect than with pure sine
wave form is achieved.
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
Keep the electrode clean
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 color
no fibers of tissue remained onto the electrode
1.5 MONOPOLAR COAGULATION
Monopolar coagulation is the hemostasis of small blood vessel of the bodily tissue through the passing of high frequency
current in correspondence of the 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 from 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 hemostasis 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.
DIATERMO MB380
and
DIATERMO MB240
allows coagulation with three degrees of deep modulation producing blend
wave form with different crest-factors so more thermal effect and consequently hemostatic effect than pure sine current has
achieved. The available peak voltage and the high crest factor of the Spray Coagulation 3 allows the tayet surface area’s
carbonization without mechanical contact.
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.
