Dynatron® 850plus & 550plus
Treatment Instructions - RUSSIAN & BIPHASIC
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3. Choose the CONTRACTION/REST cycle times.
Press the toggle key one or more times to select contraction/rest cycle times. Available
options include 10/10, 10/30, 10/50 and Continuous. The setting of 10/30, for example,
means a 10-second contraction time followed by a 30-second rest time. Note that you
may not select Continuous cycle for a Reciprocal treatment. The Continuous duty cycle
is not recommended for electrical muscle stimulation, but may be used for settings that
are intended to effect results other than a muscle contraction.
4. Choose the RAMP setting (does not affect Continuous treatments).
Press the toggle key one or more times to select the desired ramp time. Available options
include .5, 1.0, 1.5, and 2.0 seconds. The ramp time is applied to both the start and to the
end of the contraction time, and the ramp time is in addition to the contraction time itself.
5. Change the treatment TIME, if desired.
The default time is displayed. Use the Time arrow keys to increase or decrease the
treatment time.
6. Change the PULSE WIDTH and/or PULSE RATE, if desired.
Two Normal treatments will share whatever frequencies you set for the first channel.
Keep this in mind if you plan to set up two biphasic or Russian treatments. Also note
that the pulse width and pulse rate may only be changed when setting up the first
channel in a two-channel treatment.
Press the Time toggle key to select either pulse width or pulse rate. The indicator lights
next to the Time toggle key show you which option is currently selected. When either
pulse width or pulse rate is selected, the current setting for that option is displayed in the
Time display (only). You can change the setting by using the Time up/down arrow keys.
You can press the toggle key again to return to the Time display, if desired. However, if
you make no key presses for 10 seconds, the display automatically returns to the Time
display.
The ranges and default settings for pulse width and pulse rate are listed later in this
section. See “Biphasic / Russian Default Settings.”
7. Raise the INTENSITY to the desired level.
Set the intensity by pressing the Intensity UP arrow key. When you increase intensity,
current to the patient begins. Intensity can be decreased by pressing the down arrow key.
Before selecting the intensity setting for an individual patient, see “Electrotherapy Usage
Cautions” for recommended intensity settings later in this manual. Also see the section
of this manual entitled “Contraindications, Warnings, and Precautions” for specific
precautions when treating any conditions contributing to loss of sensation, or any time
the patient cannot feel the electrical stimulation.
The intensity, pulse rate, and pulse width must all be considered together when setting up
the treatment as all three factors affect patient comfort. It may be necessary to adjust one
or more of these parameters somewhat after the initial settings are selected to find the
best settings for a given treatment and patient.
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