1. SAFETY INFORMATION
1.1 General
LG SMART TENS stimulator is a portable electrotherapy
device featuring Transcutaneous Electrical Nerve Stimulation
(TENS) therapeutic device, which is used for pain relief. The
stimulator sends a gentle electrical current to underlying nerves
and muscle group via electrodes applied on the skin. The
parameters of device are controlled by the buttons. Its
intensity level is adjustable according to the needs of patients.
1.2 Medical background
EXPLANATION OF PAIN
Pain is a warning system and the body's method of telling us that
something is wrong. Pain is important; without it abnormal
conditions may go undetected, causing damage or injury to vital
parts of our bodies. Even though pain is a necessary warning
signal of trauma or malfunction in the body, nature may have
gone too far in its design.
Aside from its value in diagnosis, long-lasting persistent pain
serves no useful purpose. Pain does not begin until coded
message travels to the brain where it is decoded, analyzed, and
then reacted to. The pain message travels from the injured area
along the small nerves leading to the spinal cord. Here the
message is switched to different nerves that travel up the spinal
cord to the brain. The pain message is then interpreted, referred
back and the pain is felt.
EXPLANATION OF TENS
Transcutaneous Electrical Nerve Stimulation (TENS) is a non-
invasive, drug free method of controlling pain. TENS uses tiny
electrical impulses sent through the skin to nerves to modify your
pain perception. TENS does not cure any physiological problem;
it only helps control the pain. TENS does not work for everyone;
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