28
DUODYNATOR
®
1049
gbo
Medizintechnik
AG 2008
Version 1.3
6.2 Single-Pole Electrodes
Single-pole electrodes are applicable for all therapy currents. For large-area treatment we recommend to use
large conductive rubber electrodes. Both electrode types have to be connected to the device with a patient
cable. The electrode positioning is realized as described in chapter 6.1.
The electrode size depends on the area that should be passed by the current. Under small electrodes the
current flow will be more concentrated and more localized than when applying large electrodes. The
application area depends on the clinical picture.
6.3 Bipolar electrodes
The bipolar electrodes can be used for the duodynamic
interference currents.
The conductive rubber electrodes of the two current circuits
are located in two flexible bipolar duo electrode sets (I and II)
and attached to a common patient cable. There are two sizes
available (small and standard). Electrode pockets are necessary
for application and fixing material for bandage (see
accessories).
Each bipolar electrode set is placed into a well wetted pocket
so that the black conductive rubber electrodes face the
humidity carrier. The reverse side of the pocket consists of
transparent synthetic material in order to be able to check the
correct positioning of the electrode.
Electrode position:
A)
If the electrodes are placed opposite to each other
(
transverse current flow, transregional
), the cable
connections must point in opposite directions.
B)
If the electrodes are placed on one side (
longitudinal
current flow
), their cables must point in the same
direction.
Only in the case of these electrode positions the flow paths of
current of the two circuits can transpose and optimal
duodynamic stimulation currents are generated.
In special cases (e.g. depending on the application in the case
of shoulder-hand syndrome) it is possible to deviate from this
general rule.
Electrode
Surface
Maximum current
Duo electrode small
12 cm
2
24 mA
Duo electrode standard
27 cm
2
54 mA
Table 4:
maximum currents in duo electrodes