Philips PR3841 User Manual
PR3841
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PR3841
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Table of contents
Important 4
Glossary 4
Introduction 5
Intended use 5
Device description 5
Benets and risks 6
Important safeguards 8
How the device works 13
Pre-set programs 14
Signals on the device 18
Preparing for use 19
Using the device 20
After use 27
Assistance 30
Troubleshooting 30
Replacement 32
Accessories 32
Full Two-Year Warranty 33
45-Day Money-Back Guarantee 34
Battery recycling 35
Compliance information 36
Specications 38
Explanation of symbols 41
Electrode placement guide 48
Important
Pay special attention to all warnings, precautions and
contraindications in this user manual. Follow them strictly
during use. Save the user manual for future reference.
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Glossary
- CE: Conformité Européenne
- CEC: California Energy Commission
- EC: European Commission
- EMS: electrical muscle stimulation
- EU: European Union
- FCC: Federal Communications Commission
- OTC: over the counter
- RF: radio frequency
- TENS: transcutaneous electrical nerve stimulation
- USB: universal serial bus
Introduction
Thank you for buying this product. If you want to benet
fully from the support that Philips offers, please register
your product at www.philips.com/pain-relief/
register. The PulseRelief device is available without
prescription. To get the best possible results with this
device, we advise you to follow the instructions in this user
manual. If you have questions or need extra information,
go to www.philips.com/pain-relief or call toll-free
1-844-531-6861 (Monday - Saturday 9:00 AM - 9:00 PM
EST, Sunday 9:00 AM – 6:00 PM EST,
excluding Major Holidays).
Intended use
The OTC TENS/EMS stimulator PulseRelief is designed
to be used for temporary relief of pain associated with
sore and aching muscles in the shoulder, waist, back,
neck, upper extremities (arm), and lower extremities
(leg) due to strain from exercise or normal household
workactivities. It should be applied to normal, healthy,
dry and clean skin of adult patients. And is to be used
for stimulate healthy muscles in order to improve and
facilitate muscle performance.
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Device description
1
2
76
1 On/off button
2 Status indicator
3 Detachable connector
4 Micro-USB socket of device
5 Battery indicator
6 Adapter
7 Socket for standard USB plug
8 Standard USB plug
9 Micro-USB plug
10 Self-adhesive hydrogel electrodes
Benets and risks
Benets
TENS programs can help relieve pain in muscles
that are sore and aching due to exercise or normal
household work. EMS programs make muscles
contract. Muscle contraction may improve and
facilitate muscle performance.
543
98
10
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Risks
General risk
TENS only treats symptoms. It reduces the feeling of
pain, but it does not cure the cause of the pain.
Pain may be a signal from your body that some part
of your body is damaged and needs attention.
Specic risks
- You may get skin irritation and burns under the
electrodes applied to your skin.
- You may get a headache or other pain if you use
the device near your eye, or on your head or face.
- You may feel faint or sick during or after use of the device.
- Some reddening of the skin under or around the
electrodes may occur during and shortly after
EMS treatment. Skin reddening usually disappears
within two hours after treatment. If the skin
continues to be red for more than a day,
please consult your physician.
- You may experience muscle exhaustion or muscle
soreness after extended use of the EMS programs
on the same muscles (more than 30 minutes a
session, up to 3 times a day).
Stop using the device and consult your physician if you
experience adverse reactions from the device.
To ensure safe usage of the device, follow the instructions
in this user manual. Read the contraindications, warnings
and precautions sections before you use this device.
If you are not sure if the device is suitable for you, consult
your physician before using this device.
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IMPORTANT
SAFEGUARDS
Contraindications
Do not use this device with the following medical devices:
- Implanted electronic medical devices, such as pacemakers.
This may cause electric shock, burns, or death.
- Electronic life support equipment, such as respirators.
- Electronic medical devices worn on the body, such
as electrocardiographs.
If you use this device together with other electronic
medical devices, these devices may not work correctly.
Warnings
- If you are in the care of a physician, consult your
physician before you use this device.
- If you have had medical or physical treatment for your
pain, consult your physician before you use this device.
- If your pain does not improve, becomes more
than mild, or continues for more than ve days,
stop using the device and consult your physician.
- Consult your physician before you use this device.
The device may cause lethal disturbances to the
heart rhythm in susceptible individuals.
- Do not use the device if you have a cognitive
impairment (e.g. dementia, Alzheimer’s disease).
People who have a cognitive impairment may be
unable to use the device according to the instructions
and may become agitated by the treatment.
- Do not apply electrical muscle stimulation (EMS)
over painful areas. If you have painful areas,
consult your physician before you use the device.
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- Do not use the device on children, as it has not
been evaluated for pediatric use.
- Do not use the device on your neck. This could
cause severe muscle spasms that may result in
closure of your airway, breathing difculties, or
adverse effects on heart rhythm or blood pressure.
- Do not use the device across your chest.
The device introduces electrical current.
Using the device in your chest may cause rhythm
disturbances to your heart, which could be lethal.
- Use the device only on normal, intact, clean, and
healthy skin.
, Do not use the device over open wounds or
rashes, and over swollen, red, infected,
or inamed areas or skin eruptions
(e.g., phlebitis, thrombophlebitis, varicose veins).
- Do not use the device over, or close to,
cancerous lesions.
- Do not place the electrodes simultaneously on both
legs, both arms, or on the soles of both feet. This may
have adverse effects on your heart rhythm.
- Do not place the electrodes inside body cavities,
e.g. the mouth. This may cause skin irritation,
skin burns or electrical shocks. This device is not
designed for internal application.
- Do not use the device in the presence of
electronic monitoring equipment (e.g., cardiac
monitors, ECG alarms). This equipment may not
operate properly when the electrical stimulation
device is in use.
- Do not use the device when in the bath or shower.
- Do not use the device while sleeping.
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- Do not use the device while driving, operating
machinery, or during any activity in which electrical
stimulation can put you at risk of injury.
- Do not modify the device or the electrodes.
This could cause improper functioning.
- As the electrical performance characteristics of
electrodes may affect the safety and effectiveness of
electrical stimulation, take the following into account:
1 If the electrodes are too small or not correctly
applied, this may result in discomfort or skin burn.
2
Contact the manufacturer of the device, if you do not
know if the electrode can be used with the device.
Precautions
- TENS is not effective for pain of central origin,
including headache.
- TENS is not a substitute for pain medications and
other pain management therapies.
- TENS devices have no curative value.
- TENS is a symptomatic treatment. It suppresses
the sensation of pain that normally serves as a
protective mechanism.
- As TENS treatment may not be effective for everyone,
consult your physician or healthcare professional to
nd out if TENS will work in your case.
- The long-term effects of electrical stimulation are
unknow
- Because the effects of stimulation on the brain are
unknown, do not use the device on opposite sides
of your head.
- Electrical stimulation or the electrical conductive
gel may cause skin irritation or hypersensitivity.
- If you have suspected or diagnosed heart disease,
follow the precautions from your physician.
- If you have suspected or diagnosed epilepsy,
follow the precautions from your physician.
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- Use caution if you are likely to have internal
bleeding, for instance, after injuries or fractures.
- If you had surgery recently, consult your physician
before you use the device. Using the device may
disrupt the healing process.
- Use caution when you use the device over areas
of skin that lack normal sensation.
- The impact of using this device during pregnancy
is unknown. It may be not safe.
- Use caution when you use the device over the
uterus during pregnancy or menstruation.
- Keep this device out of the reach of children.
- Do not use the device or an electrode if it is
damaged. Always check the device and the
electrodes for damage before use.
- Replace the self-adhesive electrodes if they no
longer stick rmly to your skin.
- Do not use plaster or tape to attach the
electrodes to the skin.
- Make sure that the electrodes do not touch metal
objects, such as belt buckles or necklaces.
- Use this device only with Philips self-adhesive
hydrogel electrodes, and the Philips adapter and
USB cord supplied with the device.
- Use burst TENS programs while sitting or lying.
These programs can result in muscle contractions.
- Always end the treatment in the Philips Treatment
App or press the on/off button on the device
before you remove the device or the electrodes.
If you do not end the treatment, you may get an
unpleasant sensation in your ngers when you
touch the magnets. This sensation is not harmful,
but it can be unpleasant.
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General recommendations
- Read this user manual carefully and always follow
the treatment instructions.
- Do not use this device for any other purpose than
what it is intended for.
- This device is designed for use by and on a single
adult person. For hygienic reasons electrodes
should not be shared.
- Do not use EMS stimulation to contract a muscle
if contraction of the muscle may disrupt healing.
For instance, muscle contraction may exacerbate
the tear if a muscle or tendon is torn. After a
recent surgical procedure, an acute trauma or a
fracture, EMS stimulation may have an adverse
effect on the healing process. Muscle contraction
in case of tendinitis may also worsen symptoms.
- Do not use the device if you are connected to
high-frequency surgical equipment. This may result
in burns on the skin under the electrodes and may
damage the device.
- Do not use the device within less than 39 inches
(1 meter) from shortwave or microwave medical
equipment. Close proximity to this equipment
may cause unstable device output.
- Do not use the device if it is closer than 12 inches
(30.5cm) to wireless communication equipment,
such as wireless home network routers, cell phones,
cordless phones and their base stations, and walkietalkies. The electromagnetic interference of this
wireless communication equipment may prevent
the device from operating properly.
- The device is not waterproof. Do not use the
device in wet surroundings.
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- Although you can use the device indoors and
outdoors, it does not withstand all weather conditions.
- The device does not withstand temperatures higher
than 104°F (40°C) or lower than 41°F (5°C).
- The electrodes have a limited shelf life. Please check the
packaging for the use-by date before use. Do not use
electrodes whose use-by date has expired.
- Always use and store the electrodes according to
the instructions.
- If the device does not function as described here,
stop using it and call toll-free 1-844-531-6861
(Monday - Saturday 9:00 AM - 9:00 PM EST,
Sunday 9:00 AM – 6:00 PM EST, excluding Major
Holidays).
SAVE THESE
INSTRUCTIONS
How the device works
TENS
TENS is a non-invasive pain relief method. Healthcare
professionals, such as chiropractors, physicians and
physiotherapists, often use this method. TENS relieves
pain in a way similar to rubbing the pain away.
By rubbing, you cause a different skin sensation to
mask pain. The device generates electrical pulses. Selfadhesive electrodes are placed on the skin close to the
area of pain. The device delivers pulses across the skin
through these electrodes. This activates the underlying
sensory ner ves. You can choose 15 pre-set TENS
programs with different pulse settings. In each program,
you can adjust the intensity of the pulse.
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EMS
EMS is a method for muscle conditioning. It uses a
device and electrodes placed on the skin.
The electrodes are placed near the muscle to be
stimulated. The device generates electrical pulses and
passes these pulses across the surface of the skin to
activate the underlying motor nerves.
This makes the muscle contract. Contraction helps
to condition the muscle. You can choose from
5 pre-set EMS programs. In each program, you can
adjust the intensity of the pulse.
Pre-set programs
The device comes with 15 pre-set programs for
TENS and 5 pre-set programs for EMS. The order of
the programs in the list does not mean that certain
programs are more suitable for specic conditions
than others. As the effect of a treatment program
may strongly differ from person to person, we advise
you to try out different treatment programs to nd
out which one works best for you.
Program overview
Conventional TENS programs
Conventional TENS programs deliver
high-frequency stimulation. Their working mechanism is
based on the Gate Control Theory. This theory states
that stimulation blocks the transmission of pain signals.
It is similar to rubbing away pain. Most people use
conventional TENS for 30 minutes per session.
You can use it as often and as long as it feels
comfortable. You will notice the effect most clearly
during use. The effect generally wears off rather quickly
after use. Adjust the intensity so that you clearly feel the
pulses. Treatment must not feel unpleasant or painful.
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Name of
conventional
TENS program
Conventional May give you a continuous tingling
Thorough
stimulus
Pre-activity May give you a more local and soft
Soft stimulus May give you a softer stimulating
Deep stimulus May give you a deeper stimulating
Radiating pulse May give you a more radiating
Program description Suggested
stimulation
May give you a more thorough
stimulating sensation
stimulating sensation
sensation, e.g. for sensitive body parts
sensation
stimulation sensation
Burst TENS programs
Burst TENS uses high-frequency stimulation that
comes in trains of pulses. This triggers the release of
endorphins, which are painkillers produced by the
body. You can use burst TENS for 30 minutes several
times a day. Adjust the intensity of the burst program
so that you feel the pulses strongly. The sensation can
be slightly unpleasant. Set the intensity to a level that
causes visible muscle contractions in the treatment
area. These contractions are not harmful. If you nd
them too uncomfortable, decrease the intensity,
choose a different program, or move the electrodes
to a different place. Use burst TENS programs
while sitting or lying. Burst TENS can lead to muscle
contraction in the treatment area.
treatment
time
No limit
No limit
No limit
No limit
No limit
No limit
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Name of
burst TENS
program
Continuous
burst
Slow
kneading
Mild
kneading
Deep
kneading
Diffuse
burst
Program description Suggested
May give you a pulsing burst stimulation to
release endorphins in your body
May give you a slower and massaging burst
stimulation to release endorphins
May give you a milder burst stimulation to
release endorphins in your body
May give you a more local and deeper
burst stimulation to release endorphins in
your body
May give you a more diffused burst
stimulation to release endorphins in your
body
* optionally multiple times a day, can be changed in
the app
Frequency-modulated TENS programs
Frequency-modulated TENS uses pulses that vary
from high frequency to low frequency. In some cases,
this program may be more comfortable or effective
than the other programs. You can use frequencymodulated TENS for 30 minutes several times a day.
treatment
time
30 min.*
30 min.*
30 min.*
30 min.*
30 min.*
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