Dynatron® 850plus & 550plus
Treatment Instructions - ULTRASOUND
51
NOTE: During a combo treatment, THE STIM OUTPUT OF THE TREATMENT
IS NOT PAUSED when the PAUSE key is pressed, although the ultrasound output
is stopped and the treatment timer is paused.
9. Press STOP if you need to stop a treatment before its time has expired.
When the treatment time for a treatment has elapsed, the output to the soundhead is
stopped and a tone sounds notifying you of the treatment end.
STOP ONE TREATMENT ONLY: If you have more than one treatment in progress,
you can stop one treatment by either of the following methods. First, press the channel
toggle key to select the channel to be stopped (that channel’s light is green when
selected).
FUNCTION-STOP. Press and hold the FUNCTION key and press STOP.
REDUCE THE TREATMENT TIME TO ZERO. Press the Time down arrow
until the Time display reaches zero. The device beeps when the time reaches
zero.
The output at the selected channel is stopped, and the device then displays the parameters for
the next treatment that remains in progress (if any).
Ultrasound Default Settings
The following default settings are set by the manufacturer and are selected when you press
the Sound key. You may change these defaults to your own preferred settings. See “Setting
Defaults” in this manual.
• 1 MHz for 2, 5, and 10cm
2
soundheads, and 2 MHz for the 1cm
2
soundhead
• Continuous
• Time: 5 minutes
Patient Coupling
The Dynatron 850plus provides the feature of patient coupling detection which senses the
coupling between the soundhead and the patient to ensure proper delivery of the ultrasonic
therapy. The coupling bar graph described on the following page provides a graphical
representation of coupling status during a treatment.
Coupling (contact between the soundhead and the treatment site) may be provided either via a
coupling agent such as a gel or lotion, or in water, as with underwater treatments. Any
material used as a coupling agent must be highly conductive of ultrasonic waves. Air is a
very poor conductor of ultrasonic waves. Therefore, avoid allowing any air between the
soundhead and the treatment area.
During the treatment the soundhead should be moved continuously covering an area
approximately twice the size of the soundhead in area. The full surface of the soundhead should
maintain contact with the patient’s skin (except with underwater treatments).
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