3
2
IMPORTANT SAFETY INFORMATION
Read instruction manual before operation. Be sure to comply with all
“
CAUTIONS
”
and
“
WARNINGS
”
in the manual. Failure to follow in-
structions can cause harm to user or device.
Chapter 2: CAUTIONS
1. Federal law (USA) restricts this device to sale by or on the order
of a physician
2. Safety of powered muscle stimulators for use during pregnancy
has not been established.
3. Caution should be used for patients with suspected or diagno-
sed heart problems.
4. Caution should be used for patients with suspected or diag no-
sed epilepsy.
5. Caution should be used in the presence of the following:
a. When there is a tendency to hemorrhage following acute trauma
or fracture;
b. Following recent surgical procedures when muscle contrac-
tion may disrupt the healing process;
c. Over the menstruating or pregnant uterus; and
d.Over areas of the skin which lack normal sensation.
6. Some patients may experience skin irritation or hypersensitivity
due to the electrical stimulation or electrical conductive medium.
The irritation can usually be reduced by using an alternate con-
ductive medium, or alternate electrode placement.
7. Electrode placement and stimulation settings should be based on
the guidance of the prescribing practitioner.
8. Powered muscle stimulators should be kept out of the reach of
children.
Chapter 1: INTRODUCTION
EXPLANATION OF EMS
Electrical Muscle Stimulation is an internationally accepted and proven
way of treating muscular injuries. It works by sending electronic
pulses to the muscle needing treatment; this causes the muscle to
exercise passively.
It is a product derived from the square waveform, originally invented
by John Faraday in 1831. Through the square wave pattern it is able
to work directly on muscle motor neurons. The Comfy EMS
®
has low
frequency and this in conjunction with the square wave pattern
allows direct work on muscle groupings. This is being widely used in
hospitals and sports clinics for the treatment of muscular injuries
and for the re-education of paralyzed muscles, to prevent atrophy in
affected muscles and improving muscle tone and blood circulation.
HOW EMS WORKS
1. Relaxation of muscle spasms
2. Prevention or retardation of disuse atrophy
3. Increasing local blood circulation
4. Muscle re-education
5. Immediate post-surgical stimulation of calf muscles to prevent
venous thrombosis
6. Maintaining or increasing range of motion
The EMS units send comfortable impulses through the skin that stimu-
late the nerves in the treatment area. When the muscle receives this
signal it contracts as if the brain has sent the signal itself. As the
signal strength increases, the muscle flexes as in physical exercise.
Then when the pulse ceases, the muscle relaxes and the cycle
starts over again, (Stimulation, Contraction and Relaxation.) Pow-
ered muscle stimulators should only be used under medical supervi-
sion for adjunctive therapy for the treatment of medical diseases
and conditions.
