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Mobile 2 - Service Manual 15
3.8. THERAPIES SPECIFICATIONS
3.8.1. Ultrasound Therapy
Frequency 1 MHz; 3 MHz
Duty Cycles 10%, 20%, 50%, Continuous
Pulse Repetition Rate 16, 48, or 100 Hz
Pulse duration: 1-31.25 ms
Max (ON): 31.25 ms
Min (OFF): 5 ms
Unless otherwise specified, ultrasound
controls accuracy is: ± 20 %
Peak to Average Ratio: 1:1, at 50% Duty Cycle
4:1, at 20% Duty Cycle
9:1, at 10% Duty Cycle
Beam Nonuniformity Ratio <5:1
Beam Type Collimating
Treatment Time 1 to 30 min
Output Power
(*) An error of + 0.25 W can be measured with 1cm2 US applicator,
pulse mode 100Hz at 10% or 20% Duty Cycle.
3.8.2 Electro-Stimulation Therapy
Unless otherwise specified, electrotherapy controls accuracy is: ± 20 %.
WAVEFORMS
Advice on size and type of electrodes to be used is given in device GUI treatment guidelines.
CC: Constant Curent
CV: Constant Voltage
IFC (Interferential) Traditional (4 Pole)
Advice on size and type of electrodes to be used is given in device GUI "treatment guidelines" feature
Interferential Current is a medium frequency waveform. Current is distributed
through two
channels
(four electrodes). The currents cross each other in the body
at the area requiring treatment. The two currents interfere with each other at
this crossing point, resulting in a modulation of the intensity (the current intensity
increases and decreases at a regular frequency).
Output Mode
Electrodes
Carrier Frequency 2000-10,000 Hz
Beat Frequency 1-200 Hz
Sweep Time 14 sec
Sweep Low Beat Frequency 1-199 Hz
Sweep High Beat Frequency 2-200 Hz
Cycle Time Continuous or User Defined
Scan Percentage Static, 40%, 100%, Manual
Amplitude 0-100 mA (CC)
Treatment Time 1-60 Minutes
Available on Channel 1&2,
IRMS [mA] 0-100 mA
DC component : No
TENS- Asymmetrical Biphasic
Advice on size and type of electrodes to be used is given in device GUI "treatment guidelines" feature
The Asymmetrical Biphasic waveform has a short pulse duration. It is capable
of strong stimulation of the nerve fibers in the skin as well as of muscle tissue.
This waveform is often used in TENS devices. Because of its short pulse, the
patient typically tolerates the current well, even at relatively high intensities.
Output Mode Electrodes
Output Intensity 0-140 mA (CC) 0-140 V (CV)
Phase Duration 30-400 µsec
Frequency 1 - 200 Hz
Mode Selection (Stim) CC or CV
Mode Selection (Combo) CV
Burst Frequency 0-10 Hz
Frequency Sweep On/Off
Sweep Low Frequency 1-199 Hz
Sweep High Frequency 2-200 Hz
Cycle Time Continuous or User Defined
Amplitude Modulation 0% (off) to 100% on 10% steps
Treatment Time (Stim) 1-60 minutes
Treatment Time (Combo) 1-30 minutes
Ramp -5 sec
Available on Channel 1,2
IRMS [mA] 0-53.61 mA
DC component No
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