Therapy Unit

Computersied interferntial therapy unit  in the interferential therapy, we make use of two medium frequency alternatively currents. These medium frequency currents are not indentical & may differ in frequency  up to 150 hz. Two oscillator of medium  frequency are generated  & are cross wisely applied to the body by means of four electrode pads . [ ( ch1) & (ch2) ] each channel with one pair of pads i. E. Two no. Of  pads. One oscillator has a fixed frequency of 4000 hz the other can be ranged in the freq. Between 3850 hz.

both oscillator interfere i. E. Intersect inside the body resulting in a modulated signal as a carrier & low frequency part ( the difference in frequency) for the actual therapy.
in simple words, we can define the interferential therapy as when two medium frequency currents i. E. Ch1 & ch2 intersects with each other , leading interference currents to be generated at the place.

for example, let us take two medium frequency current, current in ch1 = 4000 hz. & in ch2 = 3850 hz. These two currents are applied to any part of the body ( or a tissue ) at the points where the current cross each other. The new beat frequency current set up is amplified  which is been modulated i. E. Amf amplified modulated medium frequency ) & the frequencies of the new current is called interferential current which is 150 hz) by varying the constant frequency of the first  it is  possible to producer a range of  beat frequencies deep in the patients tissue. Thus it is possible to create any desired frequency  rate in the carrier currents.


sailent features

• user friendly can be easily operated .
• totally father touch
• digital 7 segment display for actual current indication for both the individual channels.
• direct beat frequency control and digital display easily available.
• totally computersied unit
• scan mode (continous & other )
• light weight easily portable and serviceable.
• safe start feature
• 50 pre fixed programes

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operating voltage	230 volts ac supply 50 hz, 5 ac current.
output type	100% isolated
medium frequency	4 khz , 2. 5 khz, tns mode
output	two separate outputs ch-1 & ch-2
output current	0 to 50 ma
output frequency	freq. On selection of scan. Ch-2 - 4000 hz [constant]
display	interference frequency indicator by 3 digit digital seven seg. Display.
timer	0 – 99 minutes can be varied
scan patterns	rectangular, trapezoidal, triangular
therapy modes	4 pole interferential therapy, 4 pole vector interferential therapy,
	2 pole interferential therapy.

This appliance is latest development with fully solid state microprocessor controlled unit, with digital timer & intensity display and is very lightweight compact and portable. The sound head with a special transducer is designed to keep a very good skin contact for deep ultrasound therapy. The ultrasonic waves differ from other electromagnetic radiation such as short wave, microwave etc as the energy is propagated as mechanical vibrations and gives a massaging effect to the deep tender part of the muscle.

this is very effective in neuro-muscular and muscular-skeletal diseases including arthritis, sinusitis etc. The sound head generator minimizes heat and thus eliminates any discomfort of the patient. The unit is fitted with a timer switch to put the completion of predetermined dosage time. It operates on 220/240 volts. A/c.

the treatment head gives continuous or pulsed ultrasound waves obtained through a selective switch, up to 15 watts in continuous and 21 watts in pulsed modes.


technical detail:

operating modes	continuous & pulse mode
pulse mode ratio	1:1, 1:4, 1:7, 1:10
operating frequency	1 mhz
output	15 watts max continuous mode & 21 watts max pulse mode
ultrasonic power density	up to 3 watts / sq cm
treatment time	0 to 60 minutes
power supply	210 to 260 volts

standard accessories

ultrasonic applicator	1 pc
jelly bottle	1 bottle
main cord	1 pc
unit cover	1 pc
instruction manual	1pc

Technical Details

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Laser Beam Class	3B
Mode	Continuous & pulse mode.
Maximum Probe Power	20 mw
Beam Surface	0,025 cm2
Laser type	Semiconductor GaAs
Wave length	850 nm
Power density	0.8 w/cm2
Max energy within 1 min	1.2 joules