Zynex Medical NexWave, User Manual

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NexWave
Electrodes, Batteries, and Cleaning
Electrodes and Skin Care
Proper skin care will help make the use of this device more comfortable and trouble -
free. Prior to treatment, wash the areas where the electrodes will be placed with mild
soap and water, rinse, and dry the skin thoroughly. If necessary, remove excess body
hair.
Sterile electrodes may be required for some post - operative applications.
Follow directions of the prescribing physician.
Battery Power
One 9 V alkaline battery is used. The battery compartment on the back of this device
opens by sliding the cover downwards. Rechargeable batteries are not recommended
since they have only a short usage time and are not charged while in this device.
Replace battery when the battery icon appears on the display.
Insert the bottom of the battery into the battery compartment first, then press the
contacts into position.
The NexWave operates normally even if the 9 V battery is inserted with reverse
polarity.
Remove battery if planning to store NexWave.
Please dispose of used batteries properly.
AC Adapter
The NexWave is supplied with an AC adapter that is plugged into the left side of this
device and then into a 120 or 230 VAC electrical outlet. Note: The supplied AC
adapter, Zynex P/N 200109, mains power requirement is 100 - 240 VAC, 50 - 60 Hz, 0.3A
maximum. While plugged in, this device is powered from the electrical outlet and not
the 9 V battery. The battery does not need to be removed while utilizing the AC
adapter.
Device Cleaning
The NexWave case and display window can be cleaned by lightly applying mild soap to
a damp soft cloth or paper towel and using it to wipe the surfaces clean. Allow the
unit to dry thoroughly before using. Do not spray cleaning solutions directly onto the
unit, or immerse it in water or other liquids.
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About the NexWave
The NexWave is a multiple - mode stimulator which allows users a choice of treatment
options. This device incorporates Interferential Current (IFC), Transcutaneous
Electrical Nerve Stimulation (TENS), and Neuromuscular Electrical Stimulation (NMES).
Interferential Current (IFC)
The left channel (channel 1) produces a signal at a frequency of 4000 Hz. A slightly
higher frequency (4001 - 4128 Hz) is produced by the right channel (channel 2). When
applied to the skin, the signals from the two channels “interfere” with each other, and
create a difference frequency which is felt during treatment. IFC therapy requires the
use of both channels (four electrodes).
Transcutaneous Electrical Nerve Stimulation (TENS)
TENS delivers electrical impulses through the skin in the range of 1 - 125 Hz. TENS
treatments can range from 10 minutes to many hours and can be applied as needed
for pain relief. Patients can use one or two channels (two or four electrodes) for TENS
therapy.
Neuromuscular Electrical Stimulation (NMES)
NMES delivers electrical impulses to muscle motor points at a frequency of 35 Hz. The
stimulation is set by the user at a level to cause muscle contraction. There are three
different programs to choose from and each program has a preset stimulation “On
Time” of 10 seconds. The “rest period” (no stimulation) varies from 10 seconds to 30
seconds depending on which program is used. The 10:10 program setting has a rest
period of 10 seconds, the 10:20 program setting has a rest period of 20 seconds, and
the 10:30 program setting has a rest period of 30 seconds. For all programs, the
stimulation ramp up time is 3 second and the ramp down is 1 seconds. Channel 1 and
Channel 2 have the same “On” and “Off” Times and when used together will operate
simultaneously.
Important: This device must be ordered or prescribed by a licensed physician.