Neurotrac Rehab

Dual Channel TENS & EMS Unit

This is the same as the Neurotrac 3 Tens unit combined with a Neurotrac Sports Muscle Stimulator. Includes remote hand control for rehab applications.

The REMOTE SWITCH

The remote hand-held switch allows the user to manually trigger stimulation to contract a muscle. This method is very useful for treating conditions such as dropfoot.

Other features

Digital Dual Channel TENS and remote hand controlled STIM unit
8 TENS programmes
2 customisable TENS programmes
4 Triggered STIM programmes
4 Conventional STIM programmes
1 customisable Remote and conventional STIM programme

Exclusive 3 Year Warranty

This TENS machine is backed with our exclusive 3 YEAR WARRANTY. Should the unit fail in this time period return it to us and we will either replace the unit or refund your money.

(NB: Warranty does not apply to connection leads or electrodes)

Click here to buy the Neurotrac REHAB TENS Machine

Suggested Electrode Placement (TENS)

+ = Red, - = Black


Finger arthritis	Knee arthritis	Neuralgia of Trigeninus

Cervical (2 positions)		Cephalgia Overorbital

Mandibular Syndrome		Herpes Zoster	Phantom Limb

Back Pain	Menstrual Pain	Lumbar Pain (2 positions)

Tooth Ache		Sciatic Pain (2 Positions)

Epicondylitis	Shoulder Pain	Feet pain	Ankle pain

Using the Neurotrac Rehab unit in TENS mode

Rate (Hz or pulses per second)

The Rate to be selected depends primarily on the electrode placement on the patient's body. If one uses contiguous and dermatome (alongside or over the area of pain) electrode placement, a higher rate of 80 Hz - 100 Hz is desirable. The patient should experience steady continuous stimulation. It has been found that an optimal setting of 80 or 90 Hz with a pulse width of 200 µS has good effect for most patients and is a good first choice for pain-gating. Patients using Trigger, motor or acupuncture points tend to respond to low rate stimulation 2 Hz - 10 Hz and pulse width of 200 µS. The desired effect is for the patient to feel individual pulses.

Pulse width

The wider pulse width will deliver stronger stimulation for any given intensity [mA] setting. By using a combination of intensity and pulse duration, it is felt that various pulse widths are capable of stimulating different groups of nerve fibres. The wider pulse duration is needed to recruit motor fibres, where as the narrow pulse duration is used more on the sensory fibres. The selection of which pulse duration to use is dependant on the intented treatment protocol.

Stimulating larger nerve fibres is thought to reduce the speed and the amount at which information is transmitted along the smaller nerve fibres. Also, under certain circumstances the brain is thought to produce its own analgesic pain-killing substances, known as endorphins or endogenous opioids.

Electrode Placement

The placement of electrodes is one of the most important parameters in achieving effective pain relief using TENS. This is best left to your physiotherapist or Doctor to advise as to which location of the most appropriate. It may transpire that various positions need to be experimented with before the user finds the most effective positioning. The positioning may be via the contiguous, dermatome, myotome, motor, trigger or acupuncture points.

Dermatomes & Myotomes

These are areas of the body enervated by a single nerve root via the spinal cord. Each nerve root serves a known area of the skin. The dermatomes are named after the nerve root which serves it.

Contiguous & Placement

This form of electrode placement is the most common method used. It involves placing the red lead [proximal] alongside the spine where the dermatome [on which your pain lies] enters and exists. The black lead [distal] is normally placed over or near to the pain site. Your physiotherapist or Doctor may direct the current to cross through the pain area or using the 'bracket' system allow the current to flow on either side of the pain site through the nerve branches that supply the pain location.

Acupuncture Points

The placement of the red and black electrodes on the skin forms the electrical circuit for the TENS. It is the skin itself that creates the highest electrical resistance to stimulation. The Physiotherapist or Doctor may consider using acupuncture loci, which offer much lower resistances properties, as a more effective site for placing the electrodes. Accurately locating an acupuncture point can be difficult, please seek advice from your doctor or physiotherapist.

Treatment Modes

Conventional TENS or normal This mode enables the user to select any rate between 2 Hz - 200 Hz, and a pulse width between 50µS - 100µS. This is the most frequently used of the three modes. The most common selection is 80-90 Hz with 200 µS pulse width.

Burst mode This mode is comparable to the low rate TENS technique except that each low rate pulse is substituted for a short BURST of 9 pulses [200µS] at 150 or 185 Hz. It is a combination of conventional and low rate TENS. The burst mode is often referred to as acupuncture - like TENS.

Modulation TENS This mode was designed to help prevent nerve accommodation that some patients experience. It is achieved by continuously cycling the pulse width and rate.

Intensity [mA] Patients respond differently to the level of instensity. This is due to differences in individual patient's skin resistance, innervation and the type and condition of the electrode being used.

A good formula for setting the intensity is to increase the current so that the patient feels slight muscle contraction, but not strong enough to move a joint, and then slightly reduce the intensity so that it feels comfortable. When using low rate TENS settings, individual twitches will occur. The higher rate TENS settings will increase muscle tension. It is advised to increase the intensity to experience strong muscle contraction.

How long so i use TENS for?

This depends on the individual patient's condition, accuracy of electrode placement, stimulation and the characteristics selected, but typically the onset of pain relief starts after 20 - 30 minutes. Generally, TENS is used for longer periods of normally 1 hour and 30 minutes per session. With some patients it can be much longer.

Specifications (TENS & Stim)

Dual channel	individually isolated circuits
Amplitute	0-90 mA; indication only; actual mA will tend to be less than indicated due to electrode impedance.
Type	Constant current
Waveform	Asymmetrical, rectangular bi-phasic with zero DC current
Type	Constant current
Selectable pulse width	50µS - 450µS [2% accuracy]
Mode	Continuous, burst, or modulated
Burst mode	Bursts of nine pulses [200µS] at 150 Hz, over 2 seconds
Modulation mode	6-second cycle of concurrent width modulation and pulse repetition rate modulation. TENS 7: Width starting at 50 µS and increasing exponentially to 250µS in three seconds and then returning back to 50µS in the next three seconds. Rate starting 20 Hz, increasing exponentially to 85 Hz in the next three seconds. TENS 8: Width fixed at 200 µS. Rate starting at 32 Hz, increasing exponentially to 100 Hz over 3 seconds and then returning to 32 Hz in the next 3 seconds.
Time duration of the custom programmes selectable	1 minute to 12 hours
Low battery indicator	If the battery goes below 6.9 volts +/_ 0.2 volts the battery symbol will flash on/off once every second
If the battery voltage is below 6.6 (+/- 0.2) volts the unit will not turn on.
Open electrode detect	If an open circuit is detected at the output of channel A or B the output current wil be reset at zero.
Physical dimensions	108 x 62 x 23 mm
Weight	0.07kg without battery, 0.1kg with battery
Environmental conditions for storage or transport	-10 to 50°C, 0-90% humidity.

Warranty

Verity Medical Ltd provides a warranty to the original purchaser that this product will be free from defects in the material, components and workmanship for a period of 2 years from the date of purchase.