How Will The Obi TENS +
Help Your Pain?
TENS (Transcutaneous Electrical
Nerve Stimulation) works by
passing mild electrical impulses
through the skin, via electrode
pads, into the nerve fibres which
lie below. The TENS impulses
help your body produce its own
pain killing chemicals, such as
‘endorphins’ and ‘encephalins’.
The level of pain relief obtained
varies from person to person.
Some find that the Obi TENS +
provides all the pain relief
required during the whole of
labour, whereas others find that
other analgesics are also needed
during the later stages of labour.
Introduction To The Obi TENS +
The Obi TENS + uses a state-of-
the-art, efficient method of drug-
free pain relief with no known
side effects. In order to obtain
maximum benefit, it is advised
that you seek guidance from your
medical adviser as well as
reading this instruction guide.
Precautions And
contraindications
1.
TENS must NOT be used
before the 37th week
of pregnancy.
2.
If you are pregnant, do NOT
place the electrodes over
your abdomen.
3.
Do NOT use if you have
a pacemaker or any other
implanted electrical device.
4.
Check with your healthcare
professional before using if
you suffer from a heart
condition, epilepsy,
undiagnosed pain, have any
metal implants, or any
doubts whatsoever.
5.
Do NOT use if you experience
an allergic reaction to the
electrodes.
6.
Never use TENS to mask
undiagnosed pain since this
could require urgent
treatment.
Obi TENS +
Quick Reference Guide
If you are in labour, please use the
quick reference guide set out
below. It is however recommended
that you read the section entitled
“Setting Up Your Obi TENS +”
found on page 5 to obtain the best
performance from your unit.
Before using the Obi TENS +,
please read the
contraindications and
warnings on pages 1 to 2.
1.
Ensure the Obi TENS + unit is
switched off.
2.
Insert 2 x AAA batteries in the
compartment at the back of
the unit (see figs 1 and 2,
page 6).
3.
Insert the leadwire plugs into
the bottom of the unit
(see fig 3, page 6).
4.
Insert the pins at the other
end of the leadwires into the
sockets attached to the
electrode pads. Do not
remove the electrodes from
their backing at this stage
(see fig 4, page 6)
5.
Position the electrode pads
on the body as indicated on
page 7. A pair of electrodes
must be connected to each
lead wire in order for you to
feel any sensation. The
electrode pads must be
peeled away from their
backing and placed directly on
your body for you to feel any
sensation.
6.
Press the (on/off ) to turn
the unit on. The unit will
automatically begin operating
in burst mode.
7.
Now push the (CH1 +) key
until you feel a pulsating
sensation in the first pair of
electrodes.
8.
Repeat the same with the
(CH2+) key for the second
pair of electrodes.
9.
At the onset of a contraction
press the ‘boost’ button
for the additional surge of
power needed to combat the
pain.
10.
Press the ‘boost’ button
again once the contraction
has passed and continue in
the BURST 1 mode as before.
11.
See page 9 for using the
Contraction Timer.
1
2
3
4
5
6
General Precautions
1.
Do NOT use this unit without
first reading these
instructions.
2.
Do NOT immerse the Obi
TENS + in any liquid. Do not
use in the bath or the shower
3.
Do NOT place it close to any
source of excessive heat or
operate it in the presence of
flammable gas.
4.
Do NOT drop this unit onto a
hard surface.
5.
Do NOT attempt to dismantle
the Obi TENS +.
6.
Only use specified batteries
and electrodes.
7.
If damaged, do not use.
Return to supplier.
8.
Remove the batteries when
not in use.
9.
Do NOT use while driving or
operating potentially
dangerous machinery or
while using a microwave.
10. Keep out of the reach of
children.
11. Do NOT place electrodes on
or near the eyes, in the
mouth, over the front or
sides of the neck or across
the head or the heart.
12. Do NOT place the electrodes
on varicose veins or recent
scarring or on any area of
broken, inflamed, infected or
numb skin. Electrodes
should generally only be
applied to skin with normal
sensation unless under
medical supervision.
13. Do NOT use in the presence
of tuberculosis, malignant
tumours, very high or very
low blood pressure, high
fever or acute inflammatory
disease unless under
medical supervision.
14. A mild shock may be caused
if one electrode is
accidentally removed. In the
event of this happening the
unit should be turned off
immediately.
Controls For The Obi TENS +
The Obi TENS + is very simple to use. However, it is advisable to read
these instructions to obtain the most out of the unit. Please ensure that
all of the precautions and contraindictions have been read thoroughly.
See pages 1 to 2.
Left Channel
Intensity Keys
Hoop for attaching
neck cord used for
portability during
labour
Right Channel
Intensity Keys
On/Off Button
Boost Button -
used for extra
surge during
contractions
Leadwire Jack Plug Socket Connectors
User Display
Mode Key
Display Symbols And Their
Meanings
Power Bar: This shows the output
from 0 to 15 for both left and right
channels. Each segment
represents approximately 7% of
the total output.
Pressing the ‘Boost’ button
activates the Boost mode. This
function is used during
contractions. There are two Boost
modes available indicated by a 1
or 2 next to the word BOOST.
You can switch between them by
pressing the Mode key.
This function is used at the onset
of labour and in-between
contractions. There are two Burst
modes available indicated by a 1
or 2 next to the word BURST.
You can switch between them by
pressing the Mode Key.
Low Battery Indicator:
This sign will start flashing if the
batteries are running low. If this is
the case, change both batteries.
Please refer to page 5 for
instructions.
Between Contraction
Timer.
This automatically measures the
time interval between your
contractions.
Pad contact warning
(safety cut-out)
This symbol will appear if any of
your pads are not attached
securely to the skin.
Setting Up Your Obi TENS +
Check the following contents:
•
1 x Obi TENS + unit
•
1 x Pack of 4 self adhesive
electrodes (40mm x 100mm)
•
2 x Leadwires
•
2 x AAA batteries
•
1 x Carrying pouch
•
1 x Easy-release neck cord
•
1 x Instruction manual
•
1 x EMC documentation
The Assembly Stage
a)
Remove the cover to reveal
the battery compartment
(see fig 1, page 6).
b)
Insert 2 x AAA batteries (see
fig 2, page 6), ensuring the
positive (+) and negative (-)
terminals are correctly
positioned as marked in the
battery compartment.
Replace the cover.
Ensure
the unit is switched off.
c)
Take the two white leadwires
and insert each of the black
jack plugs (at one end of
each leadwire) into the
sockets at the bottom of the
Obi TENS + unit (see fig 3,
page 6).
d)
Now insert the pins (at the
other end of the leadwires)
into the sockets attached to
the sticky electrodes. Each
leadwire has two pins,
ensure each pin is attached
to an electrode. Do not
remove the electrodes from
the backing at this stage
(see fig 4, page 6).
NB. Each leadwire has a red and
black pin. It makes NO
difference whatsoever
which electrode they are
attached to!
e)
If you wish, attach the easy-
release neck cord which
enables you to hang the Obi
TENS + from your neck
whilst in labour (see fig 5,
page 6). Now position your
electrodes (see page 7).
Inserting the battery
Remove the cover to
reveal the battery
compartment.
Figure 1
Figure 2
Insert 2 x AAA
batteries as shown on
the diagram inside the
battery compartment.
Connecting the leads
Insert both black jack
plugs into the sockets.
Useful Diagrams
Figure 3
Connecting the
Electrode Pads
Insert a red and black
pin (at the end of each
lead wire) into each
pair of electrodes.
Figure 4
Figure 5
Using the Neck Cord for mobility during labour
Thread the loop of the neck cord through the
space at the top of the unit. Slip the other end
of the neck cord through the loop and pull into
position.
Contents
Obi TENS + Quick Reference Guide
How Will The Obi TENS + Help Your Pain? 1
Introduction To The Obi TENS + ........... 1
When Should TENS Not Be Used?...... 2
Controls For The Obi TENS +................ 3
Display Symbols and their Meanings. 4
Setting Up Your Obi TENS +................. 5
Useful Diagrams ................................... 6
Suggested Electrode Placement Chart.... 7
Using Your Obi TENS + ......................... 8
Troubleshoooting Questions............. 10
Frequently Asked Questions.............. 10
Useful Information............................... 11
Post natal pad placement diagrams...11
Technical Specifications ..................... 12
Explanation of Symbols on Unit
Equipment providing a
particular degree of
protection against electric
shock particularly regarding
allowable leakage currents
having an F type (floating)
applied part.
Warning - refer to page 2 of
these instructions.
Please keep device away
from sprays of water or
rain.
The first number 2:
Protected against access to
hazardous parts with a
finger, and the jointed test
finger of 12 mm
Ф
, 80
mm length, shall have
adequate clearance from
hazardous parts, and
protected against solid
foreign objects of
12.5 mm
Ф
and greater.
The second number 2:
Protected against vertically
falling water drops when
enclosure tilted up to 15˚.
Vertically falling drops shall
have no harmful effects
when the enclosure is tilted
at any angle up to 15˚ on
either side of the vertical.
Denotes a product which
must be disposed of safely.
This symbol indicates the
serial number of the device
and includes the year of
manufacture.
The serial number can be
found in the battery
compartment of this device.
IP22
SN
This unit needs special precautions regarding EMC and needs
to be installed and put into service according to the EMC
information provided in the ACCOMPANYING DOCUMENT.
