TENS and EMS Device-TENS/EMS-ShenZhen Better Life Electronic Technology Co., LTD
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TENS and EMS Device

ModelHYS-666


Principle

 

The type of stimulation delivered by the TENS unit aims to excite (stimulate) the sensory nerves, and by so doing, activate specific natural pain relief mechanisms.

Pain relief by means of the pain gate mechanism involves activation (excitation) of the A beta (Aβ) sensory fibers, and by doing so, reduces the transmission of the noxious stimulus from the ‘c’ fibers, through the spinal cord and hence on to the higher centers. The Aβ fibers appear to appreciate being stimulated at a relatively high rate (in the order of 90 - 130 Hz or pps). It is difficult to find support for the concept that there is a single frequency that works best for every patient, but this range appears to cover the majority of individuals.


An alternative approach is to stimulate the A delta (Aδ) fibers which respond preferentially to a much lower rate of stimulation (in the order of 2 - 5 Hz), which will activate the opioid mechanisms, and provide pain relief by causing the release of an endogenous opiate (encephalin) in the spinal cord which will reduce the activation of the noxious sensory pathways. In a similar way to the pain gate physiology, it is unlikely that there is a single (magic) frequency in this range that works best for everybody – patients should be encouraged to explore the options within a unit by changing pulse width and frequency.


Function and Features

 

1) Two stimulation channels.

2) 16 programs which 4 are user programs that can be modified and stored.

3) 1-500μs pulse width and 1-500Hz frequency range

4) Time adjustable up to 90min while Intensity adjustable from 1-60mA

5) LCD display

6) Unit can operate with 9V alkaline or 8.4V NiMh rechargeable battery.

7) Intensity lock for preventing accidental intensity increase while unit is kept in pocket or on a belt.

8) Auto shutdown feature.

9) Belt clip.


Specifications:

 

Name: TENS/EMS device

Model: HYS-666

Power Supply: DV 9V / 8.4V

Input power: ≤1.7VA

Pulse frequency: 1- 500Hz, in 1Hz steps

Pulse width: 10 - 500μs, in 1μs steps

Max. Output current: ≤ 60mA