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MA531_EN
EN 16
UTC2
effect since there is a continuous frequency variation.
The biologic effects that are obtained depend on the used frequency, with higher frequency we obtain an analgesic action,
with lower frequency we obtain an excitative-motor effect.
The electrodes are fixed in opposite sides generate perpendicular fields between them so that the central area is on the
target zone. Generally, treatments with daily frequency, last for 20- 30 minutes.
Vehicular Effect
Iontophoresis
The Iontophoresis is used to transfer medicinal ions locally into tissue The ions are positively or negatively charged and
they use the current flow to penetrate, through the cutaneous surface in the skin. To obtain the desired effects, it is im-
portant that the pharmacological substance is ionizable and has a very low molecular weight. We have to know the active
charge of the medicine to put it correctly to the current’s flow.
The ions can be transmitted through cutaneous zones with minor resistance (canals’ orifices of the sudoriparous and
sebaceous glands). Through the regional circle there is a dispersion of the polar substances reaching the cellular mem-
branes modify the electric charges, this polarization creates a long lasting antalgic effect.
The medicine’s penetration depends on the following factors: on the purity of the medicine by the bigness of electrodes
(generally the electrode having the same polarity of the ion is smaller and the other electrode is bigger), by the current’s
intensity (0.1-0.5 mA/cm2), and by the time of treatment that has normally to be a little bit longer than a half hour.
It is important to clean and prepare the skin carefully in order to obtain the pore opening. The medicine is diluted in de-
mineralized water. The treated zone is put between the two electrodes. Be careful with the modality of treatment, because
the direct current can damage the skin.
Obviously the Iontophoresis doesn’t have to be used with allergic patients.
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