CombInaTIon TheraPy InsTruCTIons
DYNATRON® 25 SERIES™ | OPERATOR’S MANUAL
64
• Set up a combination treatment by using the ULTRASOUND output jack and the automatically selected default
STIM channel.
A special “COMBO” lead wire is provided with the 825 and 925 with the standard accessories for this device to accommodate
the ComboPlus feature. This lead wire is plugged into the selected STIM jack; then the banana end of the lead is connected to
the COMBO input jack on the right-side of the device, and the pin end of the lead is connected to an electrode to be placed
on the patient. It is important to note the channel selected by the device during setup and connect the lead wire to the correct
channel before setting intensity for the treatment.
Stim Through the Soundhead
With combination therapy, the soundhead is used in place of one electrode for a Stim treatment; and electrotherapy current
is delivered through the soundhead. This means that for a normal 2-electrode Stim treatment therapy, you would place
one electrode on the patient and use the soundhead as the second electrode site to complete the setup. A patient lead wire
designed to accommodate this setup is included in the Dynatron 25 Series standard accessory package for devices with
Ultrasound and electrical stimulation capabilities.
During the treatment, the Stim current passes between the soundhead and the other electrode. At the same time ultrasonic
waves are introduced into patient tissue through the soundhead. Avoid touching the electrode with the soundhead during
the treatment, keep the soundhead in contact with the patient’s skin at all times, and keep the intensity low for the Stim
current.
In order to set up a COMBO treatment, you must be familiar with setup instructions for both the electrotherapy modality to
be used and Ultrasound as explained earlier in this manual. Also remember:
• When a modality indicator is highlighted GREEN, the treatment parameters for that output are displayed. Any
changes you make to the parameters will affect that channel only.
• When a modality indicator light is highlighted YELLOW, the channel is active, but its parameters are not being
displayed (in focus) and may not be modified at this time. To bring a treatment’s parameters into focus, you must
first press the CHANNELS toggle key to select the treatment—the modality indicator will then become GREEN and
modifications are allowed.
• When using the 825 or 925, since Ultrasound and Stim share the TIME and INTENSITY displays during a
combination treatment, you will need to carefully observe which modality is in focus when setting up or changing
treatment parameters. You may toggle between the Stim and SOUND channel using the CHANNELS toggle key. The
treatment timer does not begin until you press START after both modalities have been set up.
When setting up a combination treatment, observe all contraindications, warnings, and precautions for both
therapies to be used.
REMEMBER: Use very low Stim intensities for all COMBO treatments!
