GIMA SpA
DIATERMO MB202
Manuale d’istruzioni / Instruction’s Manual
MA160IGBb
28
4.4 PRESELECTION OF THE DELIVERABLE CURRENT
The deliverable current for the surgical operations can have preselected through push button for:
4.4.1
C
UT AND
C
OAGULATED
C
UT
(CUT)
The best current for the cut is the pure sinusoidal wave without modulation that means with duty-cycle 100%.
Such current, proper for cut without coagulation, it can be moderately modulated for getting cut with different degrees of
coagulation.
The degree of modulation can be varied, among the values 100% and 70% of duty cycle in four steps, by choosing the duty-
cycle of the delivered current, through the push buttons DOWN and UP, and checking the value gotten through the up digital
display. The value of the duty-cycle has shown continually, unless for brief times when the operator requires the value of the
impedance of the neutral electrode circuit or the preset repetitions' number of the timed current delivery.
Naturally the degree of coagulation increases when the duty cycle value decreases.
4.4.2
M
IXED
C
URRENT
(BLEND)
The mixed current (BLEND) it is suited for coagulated cut when a deep coagulation together the cut is desired. This current is
made by sine current e suited or the cut associated to low voltage current suited for coagulation (soft coag). With this, a current
suited for cut coagulated in absence of eschar and carbonization is obtained, particularly suitable for endoscopic surgery.
4.4.3
C
URRENT FOR
S
UPERFICIAL
C
OAGULATION
(FORCED
COAG)
The modulated current (FORCED COAG) it is characterized by good property of surface coagulation behaving at the time it
probable production of eschar and partial carbonization of the tissue. The advantage of this type of coagulation resides in the
rapidity with which the effect is gotten.
4.4.4
C
URRENT FOR
D
EEP
C
OAGULATION
(SOFT
COAG)
The low voltage and low modulation current (SOFT COAG) it is suited for coagulation of deep layers of the fabric in which the
coagulation of the cellular albumin is gotten in absence of carbonization and without production of eschar. The process of
coagulation is in this case more time expensive than that of the forced coagulation.
4.4.5
B
IPOLAR
C
OAGULATION
C
URRENT
(BIPOLAR)
This current is low voltage pure sine current and suited for coagulation without carbonization either monopolar or bipolar. The
use of bipolar forceps it is allowed only with this current. To allow the connection of the cable bipolar forceps it is necessary the
use of an adapter that prevents any other type of current from delivering. Particularly interesting it is the automatic termination
of the bipolar coagulation through the presetting of the time of current delivery.
4.6 SIGNALING OF EXCESSIVE TIME OF DELIVERY (OVT)
If the operator exceeds the maximum time of disbursement, recommended by the international norms, that is 10 seconds, the
equipment produces a signal of warning consisting of al bright intermittent signal OVT. If despite the signal of warning the
operator insists in the continuous delivering, after a time depending from the type of current, and from the level of the same one,
the signal of warning is transformed in impediment to the delivering of current that is signalled through the signal OVT
constantly illuminated. The interdiction lasting of the current delivery depends from the previous conditions of delivery.