• Long term effects of chronic electrical stimulation are unknown�
• Safe use of electrotherapy during pregnancy has not been established�
• Stimulation should not be applied over the anterior neck or mouth� Severe spasm of the laryngeal and
pharyngeal muscles may occur and the contractions may be strong enough to close the airway or cause
difficulty in breathing�
• Stimulation should not be applied transthoracically in that the introduction of electrical current into the heart
may cause cardiac arrhythmia�
• Stimulation should not be applied over swollen, infected, and inflamed areas or skin eruptions, e�g�, phlebitis,
thrombophlebitis, varicose veins, etc�
• The user must keep the device out of the reach of children�
• Do not disconnect any stimulation cables during a session while the stimulator is switched on� Switch the
stimulator off first�
• Never connect stimulation cables to an external power supply� There is a risk of electric shock�
• Never recharge the stimulator without first disconnecting the stimulation cables�
• Never carry out an initial stimulation session on a person who is standing� The first five minutes of stimulation
must always be performed on a person who is sitting or lying down� In rare instances, people of a nervous
disposition may experience a vasovagal reaction� This is of psychological origin and is connected with a fear of
the muscle stimulation as well as surprise at seeing one of their muscles contract without having intentionally
contracted it themselves� A vasovagal reaction causes heart to slow down and blood pressure to drop, which
can make you feel weak and faint� If this does occur, all that is required is to stop the stimulation and lie down
with the legs raised until the feeling of weakness disappears (5 to 10 minutes)�
• Never allow movement resulting from muscular contraction during a stimulation session� You should always
stimulate isometrically; this means that the extremities of the limb in which a muscle is being stimulated must
be firmly fixed, so as to prevent the movement that results from contraction�
• Do not use the Compex Wireless USA if you are connected to a high- frequency surgical instrument as this
could cause skin irritation or burns under the electrodes�
• Never use the Compex Wireless USA or the charger if it is damaged (case, cables, etc�) or if the battery
compartment is open� There is a risk of electric shock�
• Disconnect the charger immediately if the Compex Wireless USA “bleeps” continuously, if there is abnormal
heating or smell, or if smoke comes from the charger or the Compex Wireless USA�
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