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directly through the area of pain or local ized enervation) , a quick pu lse rate
(setting greater than 80Hz on the Pu lse Rate Control) is desired. The patient
should not perceive individua l pulses but rather have t he sensation of steady
continuous s timulation.
Despite above recommendations, the se individual patients may require slight
variations of the above settings, accordi ng to the nature of their condition.
TREATMENT MODE
Normal or Conventional TENS offers the practitioners complete control over all the
various treatment parameters of the instrument.
Burst Mode is analogous to the Low Rate TENS technique e xcept the low fre-
quency individual pulses are replaced by individual “bursts” of 7-10 individual pulses.
It is thus a combination of Con ventional TENS and Low Rate TENS. In Burs t
Mode, the treatment frequency is fixed by the instrument and is not adjustable with
the Frequency Rate control.
Modulated Mode attempts to prevent nerve accommodation by continuously cy-
cling the treatment intensity. When using Modulated Mode increase the intensity
only when the unit is at the maximu m intensity of the modulation cycle. If the
intensity is increased during a low intensity period of the cycle, the patient may turn
up the control very slowly, so that they may feel the intensity any higher.
TIME DURATION
The onset of pain relief should occur shortly after the intensity setting has been
determined. However, in some cases, pain relief may take as long as 30 minutes
to achieve. TENS units are typically operated for long periods of time, with a mini-
mum of 20 – 30 minutes and in some post-operation protocols, as long as 36
hours.
In general, pain relief will diminish within 30 minutes of the cessation of stimulation.
II. LABEL
The label attached to the back of device
contains important message about this
device - mo del, seria l nu mber, supp ly
voltage, CE numb er and classifi cation.
Please do not remove.
Chapter 9 : GRAPHIC SYMBOLS
1. Note Operating Instructions
2. Degree of Electrical Protection BF
3. Do not insert the plug into AC power supply socket.
4. Direct Current (DC power source)
Chapter 10 : PARAMETER CONTROLS
PULSE DURATION
Wider puls e duration settings will deliver str onger stimula tion for an y given
intensity setting. A s mentioned in the Controls section, by using a combina-
tion of intensit y and p ulse dur ation, i t is fe lt that various pulse widths ar e
capable of stimulating d ifferent groups of nerve f ibres.
The choice of which pulse duration to use is partially dependent upon the Treat-
ment Mode and Protocol selected (refer to the appropriate section).
PULSE RATE
The Pulse Rate (hertz or pulses per second) chosen depends greatly upon the
type of electrode placement given to the patient.
When using conti guous and d ermatom e el ectrode place ments (i.e. stimu lating
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