Treatment Setup Warnings; Adverse Effects; Use Only Dynatronics Accessories With This Device - Dynatronics Dynatron 850 Plus Service Manual

Treatment Setup Warnings

1. NEVER turn the power on or off while the unit is connected to the patient.
2. Always STOP a treatment before removing or attaching electrodes or leads to the patient.
Leads and electrodes must only be applied to the patient before a treatment is started.
3. Never use worn or damaged leads or electrodes as these may result in injury to the
patient. Check leads using the Lead Test function provided by this device.

Adverse Effects

Skin irritation and burns beneath the electrodes have been reported with the use of electrical
muscle stimulators.

Use Only Dynatronics Accessories With This Device

The leads and electrodes provided by Dynatronics have been tested with Dynatronics devices
and are appropriate for use with these devices. Dynatronics cannot guarantee the safety or
performance of leads and electrodes purchased from other vendors.
Only use electrodes which are designed for use with this device. NEVER use monitoring
electrodes such as ECG, EKG, or EMG. NEVER use electrodes specified only for
TENS devices as those electrodes may not be adequate for use with the electrotherapies
provided by this device.
Contact Dynatronics Customer Service if you have questions about appropriate electrodes for
use with this device.
Any electrical stimulation has the potential to burn or irritate a patient's skin. The tendency towards
burning is dependent upon several factors; the most important being patient susceptibility and current
density. The practitioner has little control over patient susceptibility, other than to observe first time
patients carefully. However, current density is totally controllable. It is important to note that the
intensity displayed is not a measurement of the current delivered. For interferential, premodulated, and
biphasic stim, this is a relative reading only. Current delivered at a given intensity setting is dependent
upon the current setting, the size and type of electrodes used, and conductance.
Current density is the amount of current delivered, divided by the area through which the current is being
delivered. Higher current density increases the tendency to burn or irritate. The current density can be
reduced by decreasing the amount of current or increasing the area through which the current is being
delivered. The area can be increased by using larger electrodes and/or making sure that the total area of
the electrode is actually delivering current. Current density is also reduced when more electrodes are
used (four instead of two).
Electrodes which are worn or have lost their adhesiveness, or carbon electrodes which are corroded and
are not securely fastened, fail to deliver current evenly as required. These kinds of electrodes may have
"hot spots" where higher than normal current density will be delivered. If the patient complains of "pin
prick" sensations, the electrode may be delivering current through only a small portion of its area, and the
electrode should be replaced.
Also see "Electrotherapy Usage Cautions" in this manual for further discussion regarding safe use of
leads and electrodes.
Ultrasound Technical Information
Dynatron 850plus & 550plus
®
Caution
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