Dynatron® 850plus & 550plus
ULTRASOUND - Treatment Instructions
50
4. Change the treatment TIME, if desired.
Use the Time up/down arrow keys to change the treatment time, if needed.
5. Raise POWER.
Use the Power-Intensity up/down arrow keys to increase the power to the desired setting.
For patient safety and comfort, it is recommended that you start with .1 w/cm
2
, then
increase power to the desired level after the treatment begins. Valid ranges are from .1 to
2.0 w/cm
2
(exceptions: valid ranges when using a 10 cm
2
head at 3 MHz are from .1 to
1.0 w/cm
2
; valid ranges when using a 1 cm
2
head are from .1 to 1.5 w/cm
2
).
NOTE: You may view the power display in either WATTS or W/cm
2
. The default
setting for the device is W/cm
2
. This option is explained in detail later in this section.
6. Press START.
When you press START, the treatment timer begins counting down and output is
delivered to the soundhead. If you fail to set the power before pressing START, the
intensity display will begin flashing, and you will be unable to start the treatment until
you set the power.
Be sure to use a coupling agent such as gel or lotion, and maintain good coupling
throughout the treatment (see “Ultrasound Usage Cautions” in this manual). Do not hold
the soundhead in the air, as this will cause the soundhead to overheat. The device
provides coupling sensing to help you know when coupling is not adequate. This feature
is discussed later in this section.
SAVE DEFAULTS. If the treatment you have just set up is the most common
ultrasound setup you use, you can save the treatment parameters as new defaults for your
own machine. After setting up the treatment, simply press and hold the START key for
two seconds. At the end of two seconds, you will hear a beep indicating the treatment
parameters have been saved. The next time you select the SOUND modality, these
parameters are selected automatically.
7. MODIFY a treatment in progress, if desired.
While the treatment is in progress, you can modify the following treatment parameters.
• Use the frequency toggle key to select a different frequency.
• Use the duty cycle toggle key to select a different duty cycle,
• Use the Time arrow keys to increase or decrease the treatment time.
• Use the Power-Intensity arrow keys to increase or decrease the power.
• Press and hold the PAUSE/FUNCTION key for two seconds to change display from
w/cm
2
to Watts or reverse.
8. Temporarily PAUSE a treatment, if necessary, while the treatment is in progress.
To temporarily pause the treatment, press the PAUSE key. This stops the ultrasound
output from the soundhead and pauses the treatment timer without ending the treatment.
While a treatment is paused, the light on the Pause key is lighted and the ultrasound
output to the soundhead is stopped. To resume the treatment, either press START or
press PAUSE again. Output then resumes and the treatment timer starts from where it
was paused.
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