Primo Interferential 960

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

The Primo Interferential 960 uses a mid-frequency electrical signal to treat muscular spasms and strains which makes it particularly effective in treating acute injuries, especially in sport. The interferential therapy (NMES) is used to relieve pain, stimulate muscles and increases local blood flow.

Ordering information:

Primo Interferential 960 therapy unit 2/4 pole patient lead, four medium (80x60mm) rubber electrodes, four medium sponge covers, four electrode connection cables ( blue and yellow) and two stretch bandages (1200x75mm) – scroll down for accessories

Buy this unit from only £1.20 per day including VAT  –  email for more information or GET AN INSTANT QUOTE




Interferential Therapy

Interferential therapy employs medium frequency interferential currents used in 2 or 4-pole configurations to produce a low-frequency stimulation effect.
Prior to the introduction of interferential therapy in the mid 1950s, low-frequency stimulation (NMES) was used for pain relief, muscle re-education etc.
These currents, however, have the disadvantage that normal human skin has a relatively high impedance at such frequencies. In order to overcome the skin impedance, a larger voltage has to be used to achieve the desired current, resulting in a more uncomfortable treatment for the patient. In addition, the penetration depth of these currents is poor and in part is limited by the discomfort to the patient.

Interferential therapy overcomes the problem of skin impedance. At 50 Hz (faradic current) the impedance for a 100 cm2 of skin is approximately 3000 ohms. At 4000 Hz (medium frequency -medi-wave) the skin impedance of the same area is around 50 ohms. This means that a much lower voltage signal can be used to produce the desired current, resulting in less skin sensation and more comfortable treatment. This medium frequency is, however, well outside of the normal biological frequency range (0.1 to 250 Hz).

In order to produce the required stimulation, two medium frequencies are used. A constant frequency of, say, 4000 Hz is applied to one pair of electrodes and a slightly different frequency of say 3900 Hz is applied to the other pair. These two frequencies ‘interfere’ to produce an amplitude modulated medium frequency (beat frequency) in the tissue. The tissue responds to the cyclic rise and fall in the current intensity. It is the amplitude modulation frequency (AMF) that is within the normal biological frequency range and not the medium frequency (carrier).

Primo Interferential 960 features

•Touch screen technology

• Three carrier frequencies – 2kHz, 4kHz and 8kHz

• 0-100mA peak constant or 0-70/140V peak constant voltage, depending upon mode

• NMES Treatment protocols: Pain relief, Stimulate local blood flow, OA Knee, Chronic low back pain, Acute low back pain, Fibromyalgia, Postoperative knee pain,  Stress incontinence, Urge incontinence.

• 2 independent output channels which allow 2 different treatments

• Operates in conjunction with EMS vacuum unit if required

• Easy wipe clean reducing the risk of cross-infection

• Mains powered as standard, optional battery available

Additional information

Weight 1.5 kg
Dimensions 108 × 237 × 333 cm
Power Supply

Mains, Battery

Technical Specifications

Power Input 18V, 3.33A external PSU Battery Pack (optional) Internal Rechargeable (NiMh) Classification (EN60601-1) Class 1, Type BF Fuse Internal T3.15A

Delivery time

3 days

Weight 1.5 kg
Dimensions 108 x 237 x 333 mm
Power Supply Mains, Battery 18V, 3.33A external PSU
Technical Specifications 14 Treatment Programs Classification (EN60601-1) Class 1, Type BF Fuse Internal T3.15A
Delivery time 3 days
1 Carton 41x30x24 5kg 1 Carton 41x30x24 5kg

1 review for Primo Interferential 960

  1. Rated 5 out of 5

    Craig Jones

    I attended a Professor Tim Watson course to learn more about this modality. I use this unit to treat football players. I was pleased with the quality of the unit and the price of it compared to other units I have looked at.

Add a review

Accessories for this product

facebook twitter google_plus linkedin