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4.4 Preparations and Attaching the Electrodes
To prepare the electrodes, proceed as follows:
(1) Prior to attaching the electrodes, make sure that both intensity control <6> and dose
control <8> are turned down to 0!
Warning Take care that the electrodes are by no means touched after the current is
turned up!
(2) Plug the patient lead into the patient lead connector <11> with the guide rails facing
upward.
(3) Plug the plate electrodes or junction lead for adhesive electrodes into the correspond-
ing connectors of the patient lead (page 6).
Make sure that the polarity is correct.
(4) Prior to attaching the electrodes, check whether the patient's skin shows scars or le-
sions. Avoid such areas by all means!
(5) Select the size of the electrodes according to the area of treatment following the prin-
ciple: Area of electrodes as small as necessary but as large as possible.
A larger electrode area usually makes treatment for the patients more pleasant.
(6) Plug the plate electrodes into the well-moistened electrode covers and attach them to
the patient. To moisten viscose covers use tap water or sodium chloride solution
(1%). Make sure that the whole electrode area is fixed tightly to the skin with the
padded side of the electrode cover.
If you use adhesive electrodes, attach them to the patient. Use only electrodes that
stick well, i.e. with the whole area!
Warning It is not permissible to exceed an effective current density of 2 mAs/cm²!
Please take into account that using monophase currents with a high gal-
vanic content (e.g. DF, MF, CP, LP) can cause skin irritations or burns
underneath the electrodes even when far lower effective current values are
applied. Therefore, you should always use electrodes of sufficient size and
attach them most carefully. When using galvanic current G, its maximum
value should not exceed 0.1 mAs/cm²!
For additional information on type, size and application of the electrodes, see the supplied
therapy booklet Short Introduction to Electrotherapy.
4.4.1 Modes of attaching the electrodes
Bipolar
Here you must use two electrodes of equal size.
This is the most common mode especially for pain therapy and circulatory stimulation.
Unipolar
Preferably used when treating small areas, e.g. nerve and muscle stimulation points, espe-
cially on the hands or in the face.
This therapy mode includes using two electrodes of different size, with the bigger (indif-
ferent) one being fixed proximally in most cases. The size of the indifferent electrode
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Stimulation Current Therapy
27
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