Instructions
Please read this manual thoroughly
before using this device for the rst time.
TABLE OF CONTENTS
INTRODUCTION..................................................................................2
What is pain? • How does TENS work?
SAFETY INFORMATION ..................................................................... 3
Contraindications • Warnings • Precautions • Adverse reactions
DEVICE OVERVIEW ............................................................................ 5
INSTRUCTIONS FOR USE .................................................................. 6
Prepare the unit • Apply to treatment area
Set the pulse mode and intensity • After treatment
TO GET THE BEST RESULTS FROM YOUR TENS ..............................10
CLEANING AND STORAGE ................................................................ 11
TROUBLESHOOTING .......................................................................... 11
TECHNICAL SPECIFICATIONS ........................................................... 12
LIMITED WARRANTY ......................................................................... 13
1
INTRODUCTION
LiberaTM is a Transcutaneous Nerve Stimulator (TENS) used for
pain relief. LiberaTM is portable, compact, and stylish in design.
It may help relieve pain in various areas of the body, such as the
lower back, shoulders, arms, and legs.
1. What is pain?
Pain warns our body of injury to prevent further damage.
This sensation is important because without it, vital parts of
our body might be injured without our knowledge. However,
long-lasting, persistent (chronic) pain, once diagnosed serves
no apparent purpose and reduces quality of life.
2. How does TENS work?
TENS refers to the transmission of small electrical pulses through
the skin to the underlying peripheral nerves. The theory of TENS
suggests two different modes of operation:
In conventional (high frequency) TENS, continuous mild electrical
activity may block the pain signal travelling to the brain. If the pain
signal does not get through to the brain, the pain is not “felt”.
In low frequency TENS, short bursts of electrical activity may
stimulate the release of endorphins, the body’s own natural
pain-control substance. Ask your physician or therapist for more
details. No matter what pain theory is used, TENS has been
proven useful in pain management for many patients in helping
to make their lives better.
SAFETY INFORMATION
1. TENS is a symptomatic treatment that suppresses the sensation
of pain. It has no curative value and is not effective on pain that
is of central origin.
2. Do not use in the following situations: Undiagnosed pain
syndromes (until etiology is established) • Cancerous lesions that
are present in the treatment area • Swollen, infected, inamed
areas or skin eruptions (eg: phlebitis, thrombophlebitis, varicose
veins, etc.) • Demand type implanted pacemaker or debrillator,
or any metallic implant • Epilepsy • Serious arterial circulatory
problems in the lower limbs • Abdominal or inguinal hernia.
Safety has not been established for use during pregnancy.
WARNING
For external use only • The long-term effects of frequent electrical
stimulation is unknown • This device should be used only
under the continued supervision of a licensed medical practitioner
• Do not apply stimulation over the thyroid or carotid sinus regions
as this could disrupt breathing, cardiac frequency or blood
pressure • Do not use while connected to high-frequency surgical
equipment or near shortwave or microwave therapy equipment.
• Never use in environments with high humidity (eg: bathroom)
• Never place the electrodes anywhere on the front of the thorax
or transthoracically as it can increase the risk of ventricular
brillation, cause cardiac arrhythmia and lead to cardiac arrest
• Never place the gel pad in a way that would cause the current to
go through the head • Never use near the eyes, the genitals, the
heart or on areas which lack normal sensation • This stimulator
should never be used by patients who are noncompliant or are
emotionally, cognitively or mentally impaired • Keep the
stimulator out of reach of children
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3. Precautions
• Do not adjust controls while operating machinery or vehicles
• Turn the stimulator off before applying or removing gel pad
TM
• Only use with ProActive
gel pads
• Long-term stimulation at the same site may cause
skin irritation. Use only as prescribed by a physician
• Never use in rooms where aerosols (sprays) are used
or pure oxygen is being administered. Do not use it near
highly ammable substances, gases or explosives
• Apply the gel pad to clean, dry, and unbroken skin only
• Should the treatment become unpleasant, discontinue the use
of this device until its use has been reassessed by a physician
or therapist
Light / Sound
Intensity Decrease
4. Possible Adverse Reactions
• Skin irritation or burn under the gel pad
• Allergic skin reaction to gel pad
• Headache and other painful sensations during or following
the application of electrical stimulation near your eyes, face,
and head.
Medical Electrical Equipment needs special precautions regarding
Electromagnetic Compatibility (EMC) and needs to be installed
and put into service according to the EMC information provided.
Portable and mobile radio frequency (RF) communication
equipment can affect Medical Electrical Equipment.
DEVICE OVERVIEW
Light / Sound
Indicator
On / Off
Intensity Decrease
& Mode Change
Intensity Increase
& Mode Change
USB Port
TENS Unit
Gel Pad
USB Cable
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INSTRUCTIONS FOR USE
Prepare the Unit
1. Before use, charge LiberaTM with the enclosed USB cable.
It can be plugged into a computer’s USB port or into a wall
socket using an adaptor (not included). Charging time: 2 hours.
Note: The LED light on the device will keep ashing while
charging and will become solid after it is completed.
2. Peel off the blue plastic lm from the gel pad to expose the
adhesive. Then apply the gel pad onto the back of the TENS
unit, as illustrated.
Apply to Treatment Area
3. Carefully peel the clear backing from the gel pad and apply
the unit to the treatment area (eg: shoulder or leg).
Press down rmly to ensure a full and rm contact with skin.
Back Waist Shoulders Arms
Legs
Set the Pulse Mode and Intensity
4. Press the “ On / Off ” button to turn on the unit. The LED will light
up and the unit will beep once, indicating that it is ready.
The default pulse mode (mode 1) is called “ Scraping ”.
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5. Use the “ + ” and “ - ” buttons to increase and decrease the pulse
intensity to suit your needs and comfort level. The LED will ash
and the unit will beep once to conrm that the intensity level was
changed. The maximum intensity level is 15.
• Press once to
increase intensity.
Press and hold for 3 seconds
to select next mode up.
• Press once to
decrease intensity.
Press and hold for 3 seconds
to select next mode down.
6. Press the “+” or “ - ” buttons for 3 seconds to navigate
to the desired pulse mode. Pulse modes in order are:
Mode 1 – Scraping
Mode 2 – Massage
Mode 3 – Tapping
Mode 4 – Acupuncture
Mode 5 – Combination of the above four modes
When the mode is changed from one to another, the LED light
will ash and the sound will beep to represent the corresponding
mode selected. For example, if Mode 3 is selected, the LED light
will ash and the sound will beep three times.
After Treatment
7. The unit will stop automatically after 20 minutes of treatment.
The treatment can also be stopped at any time by pressing the
“ On / Off ” button. The LED will then ash 3 times and three
“beeps” will sound to indicate that the unit has been turned off.
Note: To preserve the battery and prevent unexpected shock,
the device will default to the lowest intensity level when not
used on any treatment area, and will automatically turn off
after 20 minutes.
8. Place the clear plastic liner back on the gel surface to preserve
adhesiveness and store the TENS unit in its plastic case until
next use.
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TO GET THE BEST RESULTS FROM YOUR TENS
• Use for the full 20 minutes per treatment site.
• Start at the lowest intensity (1) and gradually adjust to a comfort-
able level (up to 15).
• Before applying the unit to the treatment area, ensure that the
skin is clean, dry and healthy (free of perspiration, dirt or lesions).
Wipe off body lotion or cream with an alcohol pad if needed.
• Cover the electrode gel surface with the clear plastic liner
and store the unit in its case immediately after use.
Keeping the gel pads clean will extend their lifespan, which
depends on the frequency of use. Avoid touching the adhesive
pads with ngertips, as skin oils can damage them.
•
The gel pad is disposable and should be replaced when it
loses its adhesiveness. Replacement gel pads can be purchased
at your local pharmacy or by contacting
A.M.G. Medical Inc.
at 1-800-363-2381.
• If the LED becomes blurry and/or the stimulation intensity
weakens, it means that battery power is running low and the
device must be charged again.
CLEANING AND STORAGE
• Always turn off the device before cleaning.
• The device can be cleaned with a soft, damp cloth.
• Never use excessive water or cleaning agents to clean the device.
• The gel pad must remain attached to the unit between uses,
covered by the plastic lm to prevent it from getting dirty or
drying up.
• Avoid exposure to extreme moisture or temperature.
TROUBLESHOOTING
If this device is not operating properly, please check below for
suggested solutions. If the recommended action does not solve
the problem, please contact the seller.
If stimulation is weak or non-existent
• Verify that skin is clean and pads are rmly attached to skin.
• The battery may be low and needs to be charged.
If the device does not turn on when “On / Off” is pressed
• The battery may be low and needs to be charged.
If gel pads are not sticky
• The gel pad will lose adhesiveness over time.
Visit your pharmacy to purchase replacements.
If skin turns red
• Stop treatment on this area. If problem persists, contact
your physician.
1110
TECHNICAL SPECIFICATIONS
• Size: 11.7 x 7.1 x 1.1 cm
• Weight: 19 g
• Power Supply: DC 3.7V
• Output Voltage: 55 V at 500 Ω
• Pulse Width: 50-100 μS
• Frequency: 0-200 Hz
• Timer: 20 Minutes
• Intensity: 15 Levels
• Mode: 5 Pulse Modes.
• Operating Condition: -10 ~ 40 oC, 30% ~ 85% Humidity
• Storage Condition: -10 ~ 50 oC, 10% ~ 95% Humidity
• Transportation Condition: -10 ~ 50 oC, 35% ~ 85% Humidity
Note: Adaptor not included.
TM
Use 0.5 to 2A adaptor to charge your Libera
.
LIMITED WARRANTY
A.M.G. Medical Inc. warrants LiberaTM to be free from defects
in material and workmanship for a period of one (1) year, to be
proven by means of the sales receipt or invoice. This warranty
is valid for the original purchaser only. Any alterations, abuse,
misuse or accidental damage voids this warranty. Repairs under
warranty do not extend the warranty period.
For service under warranty, call us at: 1-800-363-2381, between
8:30 AM to 5 PM EST.
• The following is excluded under the warranty:
A) All damage which has arisen due to improper treatment,
eg: nonobservance of the user instructions.
B) All damage which is due to repairs or tampering by the
customer or unauthorized third parities.
C) Damage which has arisen during transport from the
manufacturer to the consumer or during transport to
the service centre.
D) Accessories which are subject to normal wear and tear.
• Liability for direct or indirect consequential losses caused by the
unit are excluded even if the damage to the unit is accepted as a
warranty claim.
1312
Questions? Comments?
1-800-363-2381 • www.proactive-painmanagement.com
Made and printed in China for / Fabriqué et imprimé en Chine pour :
A.M.G. Medical Inc. 8505 Dalton, Montréal, QC H4T 1V5
Canada • 1-800-363-2381
Distributed in the USA by / Distribué aux É.-U par :
AMG Medical, Inc. (USA) 8396 State Route 9, West Chazy, NY 12992
USA • 1-888-412-4992
Rev4 0618 P/N 861-715435
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