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Implanted electronic devices
Any patient with an implanted electronic device (for
example a cardiac pacemaker) should not be subjected
to any treatment with shortwave equip-ment and should
not remain in the vicinity of a machine in operation.
Implanted metals
Metal concentrates electromagnetic energy. To pre-
vent any undesirable concentrations around a metal
implant and the resulting dangers (burns), continu-
ous shortwave therapy should basically not be used.
Consult also the therapy manual 'Pulsed and Con-
tinuous Shortwave Therapy' (chapter on Relative
Contraindications).
Electromagnetic interference
The Curapuls 970 produces an electromagnetic field
that is designed to generate thermal and biological
effects in tissues and joints of the human body. In
freeair, the strength of this electromagnetic field gen-
erated from the electrodes, cables and treated pa-
tient is reduced quadratically with the distance. This
electromagnetic field can affect electronic circuits of
equipment positioned in the vicinity.
This electromagnetic interference is in almost all
cases the cause of so-called direct radiation on the
statutory permitted frequency of 27.12 MHz. Despite
the fact that the affected equipment is not tuned to
this frequency, detection appears in several circuits
due to the strong radiation, causing the modulation
of the electromagnetic wave to become audible and/
or visible (through the neon checklight). With low-
and medium-frequency physiotherapy equipment this
modulation might become perceptible to the patient
as well.
The susceptibility to electromagnetic interference of
equipment from the various manufacturers can be very
different. This is due to the fact that some manufac-
turers are still shielding their equipment insufficiently
against external electromagnetic fields. Should
interference arise, we advise consulting the
manufacturer concerned.
We recommend paying attention to the following
items in order to minimize the chance of electro-
magnetic interference.
•
The larger the distance between the short wave
unit and other equipment, the smaller the
electromagnetic interference. Place your
shortwave unit and the patient under treatment,
at least 2 metres from surrounding equipment and/
or oblong metal objects.
•
The capacitive electrodes must be placed at a
distance of less than 8 mm from the skin. In this
way the leakage current is minimal.
•
Make sure that no oblong conductive (metal)
All manuals and user guides at all-guides.com
objects are present in the direct vicinity because
they can operate as secondary antennae
(especially objects with a length of approximately
5.5 metres).
•
Use a separate mains group (phase) for the
shortwave apparatus. Keep mains leads wide
apart.
•
Never coil up a mains lead for shortening when a
shortwave apparatus is operating in the vicinity,
or use extension cords.
•
Take care that the mains lead of the shortwave
apparatus does not come in the vicinity of the
patient and/or electrode leads. Either spread the
lead out on the floor or put excess lead underneath
the shortwave unit.
•
Use only a completely metal-free treatment chair
with footrest or a wooden couch when treating with
shortwave diathermy equipment.
•
Use an optimal treatment method. Make sure that
your patient is comfortable and relaxed and that
electrodes and cables are properly fixed.
•
HF interference will be considerably reduced when
the Circuplode magnetic field electrode is used.
When the Curapuls 970 is placed in a Faraday
cage HF interference will be completely
eliminated.
•
The intensity should only be adjusted when a
patient is to be treated and when the electrodes
have been placed.
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