EickTron120‐160
EN‐11
MA510a_EN
Instruction’sManual Manualed’Istruzioni
DEUTSCH
PORTUGUES FRANCOIS ESPANOL ENGLISH ITALIANO
2)FaradicEffect
The pulsed current causes the neuro‐muscular stimulation, originated by
stimulation of physiologic process of ionic exchange, responsible of the
transmission of stimulus that cause muscular spasms and cardiac
symptomsofextrasystoleandventricularfibrillation.
The effect of this stimulus is known like faradic effect and it is expressed
by:
R=I/√F
The physiologic system of stimulus transmission follows a limit curve in
which the pulsed currents or by low frequency produce an impulse of
stimulation.Byalternatingcurrentinhighfrequency(higherthan200kHz),
used in the electrosurgical needle, don’t have neuro‐muscular reactions
(the change of polarity is so fast that the patie
nt doesn’t have
consequencesat a level of the neuro‐muscular reactions), and there isn’t
anelectrolyticdamageoftheorganism.
For this reason all the equipments generator of the high frequency for
surgicaluse(electrosurgicalneedle)workonbasefrequencieshigherthan
300kHzsothattheydon’tpr
oduceelectricstimulation.
3)ElectrolyticEffect
The use of high frequency currents reduces the electrolytic effect (ionic
division) in the tissues, caused by the shortest period of unidirectional
conductionofthecurrent.
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