TheraTouch® CX2/CX4/EX4
10
TENS (Biphasic)
The Asymmetrical Biphasic and the
Symmetrical Biphasic waveforms are
often used in TENS (Transcutaneous
Electrical Nerve Stimulation) applications.
TENS is low frequency waveform and has
a short pulse duration. The Alternating
Rectangular waveform is an interrupted
biphasic current with a rectangular pulse
shape. This waveform is commonly used as
a pain management application.
WAVEFORM SPECIFICATIONS
PARAMETERS
Phase
Duration
Expressed in
μ
s, is the
time it takes to complete
one phase of a pulse. The
length affects the type of
nerve recruited.
Frequency
In a pulsed current, the
Frequency refers to the
number of pulses that
occur in a one second
period of time and is
denoted in (Hz) or Pulses
Per Second (pps).
Frequency
Modulation
Expressed in Hz, varies
the frequency to reduce
accommodation.
Example: When the
pulse frequency is set to
80 Hz and the
frequency modulation
is set to 40 Hz, the final
frequency will vary from
80 – 120 Hz.
Amplitude
Modulation
Amplitude Modulation is
rhythmical
fluctuation of the
TheraTouch® to prevent
accommodation.
STIMULATOR OUTPUT PARAMETERS
TENS Asymmetrical Biphasic
Output Mode Electrodes
Mode
selection
CC (Constant Current) or
CV (Constant voltage)
Intensity
CC: 0 – 200mA,
Stepping 0.5mA;
CV: 0 – 200V,
Stepping 0.5V
Phase
Duration
20
μ
s – 1,000
μ
s,
Stepping 5
μ
s
Frequency
1 – 250 Hz, Stepping 1 Hz
Cycle Time
Continuous, 10/10, 10/20,
10/30, 10/50, Custom
Ramp
1s, 2s, 5s
Treatment
Time
1 – 60 Minutes
TENS Symmetrical Biphasic
Output Mode Electrodes
Mode
selection
CC (Constant Current) or
CV (Constant voltage)
Intensity
CC: 0 – 200mA,
Stepping 0.5mA;
CV: 0 – 200V,
Stepping 0.5V
Phase
Duration
20
μ
s – 1,000
μ
s, Stepping
5
μ
s
Frequency
1 – 250 Hz, Stepping 1 Hz
Cycle Time
Continuous, 10/10, 10/20,
10/30,
10/50, Custom
Ramp
1s, 2s, 5s
Treatment
Time
1 – 60 Minutes
