10.2.3 Biphasic （TENS）
The Asymmetrical Biphasic and the Symmetrical Biphasic waveform are often used in TENS
(Transcutaneous Electrical Nerve Stimulation) applications. The TENS has a short pulse
duration. It is capable of strong stimulation of the nerve fibers in the skin as well as of muscle
tissue. Because of its short pulse, the patient typically tolerates the current well, even at rela-
tively high intensities. The Alternating Rectangular waveform is an interrupted biphasic
current with a rectangular pulse shape. This waveform is commonly used as a pain manage-
ment application.
10.2.3.1 TENS Asymmetrical
Frequency .................................................................................1-250Hz, stepping 1Hz
F.M. ...........................................................................0-250Hz, stepping 1Hz,cycle 16s
P.Dur. ..................................................................................20us-1000us,stepping 5us
Intensity....................................CC:0-200mA,stepping 0.5mA;CV:0-100V,stepping 0.5V
Channel mode....................Single channel Mode,Reciprocal Mode,Co-Contraction Mode
Treatment Time.........................................................................................1-60 minutes
Cycle Time........................................continues,10/10,10/20,10/30,10/50,custom:0-60
Ramp.........................................................................0/0,1/1, 2/2,5/5,8/8,custom:0-9
10.2.3.2 TENS Asymmetrical Burst
Frequency .................................................................................1-250Hz, stepping 1Hz
Burst. .........................................................................................1-9bps, stepping 1bps
P.Dur. ..................................................................................20us-1000us,stepping 5us
Intensity....................................CC:0-200mA,stepping 0.5mA;CV:0-100V,stepping 0.5V
Treatment Time.........................................................................................1-60 minutes
Channel mode....................Single channel Mode,Reciprocal Mode,Co-Contraction Mode
Cycle Time........................................continues,10/10,10/20,10/30,10/50,custom:0-60
Ramp.........................................................................0/0,1/1, 2/2,5/5,8/8,custom:0-9
10.2.3.3 TENS Symmetrical
Frequency .................................................................................1-250Hz, stepping 1Hz
F.M. ........................................................................................ 0-250Hz, stepping 1Hz
P.Dur. ..................................................................................20us-1000us,stepping 5us
Intensity....................................CC:0-200mA,stepping 0.5mA;CV:0-100V,stepping 0.5V
75
Rehab-Series
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