9
Maintenance and Cleaning
Daily Maintenance
When the NESS L300 Plus System is not in use:
1. If appropriate, reapply the covers to the hydrogel electrodes. Do not let
the hydrogel dry out.
2. Store the cloth electrodes where they can air dry.
3. Allow the FS Cuffs to air dry.
4. Check each component for wear or damage.
5. Replace any components or electrodes that appear old, worn, or damaged.
6. Fully charge the L300 Plus Control Unit, Thigh RF Stim Unit, and L300
RF Stim Unit batteries.
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Charging the Batteries
When a NESS L300 Plus System component has a low battery, the L300
Plus Control Unit will beep and the component indicator light will FLASH
YELLOW. See Figure 9-1.
Low Battery, RF
Stim Unit
Low Battery,
L300 Plus
Control Unit
Low Battery,
Thigh RF
Stim Unit
Low Battery,
L300 RF Stim
Unit
Low Battery,
Gait Sensor
Figure 9-1: Low battery FLASHING YELLOW indicators.
When an RF Stim Unit battery charge level is low, the RF Stim Unit status
light will also FLASH YELLOW. See inset in Figure 9-1.
When the Intelli-Sense Gait Sensor battery charge level is low, the L300
Plus Control Unit low-battery audio alert will become more persistent as the
battery weakens.
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User's Guide
To charge the batteries in the L300 Plus Control Unit, L300 RF Stim Unit,
and Thigh RF Stim Unit:
1. Select an appropriate blade. See Figure 9-2. Then slide the blade into
the charger.
Charger
W Cable
Interchangeable Blades
Figure 9-2: System charger set.
WARNING: Use only the charger included in your NESS L300
Plus System Kit or NESS L300 Plus System Upgrade Kit. Use
of any other charger could damage the system.
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91
2. Open the flexible covers over the charging ports. See Figure 9-3.
Flexible
Cover
W Cable
Flexible
Cover
Charger
Figure 9-3: Charging setup.
3. Connect the W cable to the charging ports. See Figure 9-3
4. Plug the charger into a wall socket.
5. Verify that the rotating GREEN circle appears in the L300 Plus Control
Unit digital display. See Table 9-1.
6. Verify that the
status light on both RF Stim Units is ALTERNATELY
FLASHING YELLOW and GREEN. See Table 9-2.
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User's Guide
7. Allow the charging process to continue until:
•• A
horizontal GREEN line appears in the L300 Plus Control
Unit digital display. See Table 9-1.
•• The
status light on both RF Stim Units is solid GREEN.
See Table 9-2.
The charging process should last approximately three hours, but the L300
Plus Control Unit can take up to six hours to charge.
Note: Keep the L300 Plus Control Unit and RF Stim Units connected to the
system charger set until ready for use.
Display
Description
Definition
ROTATING GREEN Circle
L300 Plus Control Unit Charging
Horizontal GREEN Line
L300 Plus Control Unit Fully
Charged
Letter "E" FLASHES while
Charging
Charging Error
Table 9-1: L300 Plus Control Unit charging displays and definitions.
Status Light ALTERNATELY
FLASHES YELLOW and
GREEN
Battery Charging
Status Light SOLID GREEN
Battery Fully Charged
Table 9-2: RF Stim Unit charging displays and definitions.
Chapter 9 - Maintenance and Cleaning
93
Note: If the L300 Plus Control Unit battery is completely discharged, a “b”
(for boot) will flash for a few seconds in the L300 Plus Control Unit digital
display when charging is started.
Note: It is possible to charge the L300 Plus Control Unit and RF Stim Units
separately, but Bioness recommends that they be charged at the same time.
CAUTION: The batteries must be charged before first use,
daily, and after extended storage.
CAUTION: The Intelli-Sense Gait Sensor battery is not
rechargeable.
CAUTION: Remove the L300 FS Cuff and Thigh FS Cuff before
charging the RF Stim Unit batteries.
CAUTION: Do not use the RF Stim Units or the L300 Plus
Control Unit while charging.
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User's Guide
Battery Replacement
The battery in the Intelli-Sense Gait Sensor is not rechargeable. It may need
to be replaced approximately every six months.
When the Intelli-Sense Gait Sensor battery charge level is low, the indicator on
the L300 Plus Control Unit will begin to FLASH YELLOW. The alert will begin
approximately two weeks before the Intelli-Sense Gait Sensor completely
loses its charge. The L300 Plus Control Unit will also emit an audio alert.
To replace the Intelli-Sense Gait Sensor battery (Lithium coin cell, CR2430):
1. Using a Phillips screwdriver, unscrew the two screws from the battery
cover. See Figure 9-4.
Screws
Battery
Cover
Note: If you are unable
to replace the battery,
your local battery supply
store should be able to
assist.
Figure 9-4: Replacing the Intelli-Sense Gait Sensor battery.
Chapter 9 - Maintenance and Cleaning
95
2. Slide the cover out.
3. Note the “+” orientation of the old battery.
Remove the old battery, and properly dispose of it according to
your local environmental regulations.
4. Insert the new battery. The “+” should face outward.
5. Slide the cover back into place.
6. Tighten the screws.
7. Press the pressure sensor to activate the sensor.
CAUTION: Use only a battery supplied by Bioness.
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User's Guide
The battery in the L300 Plus Control Unit is a rechargeable AAA NiMH battery.
It should be replaced approximately every two years.
To replace the L300 Plus Control Unit battery (AAA NiMH 1.2 V):
1. Remove the screw from the battery cover on the back of the L300 Plus
Control Unit. See Figure 9-5. (The screw is under a small label. Gently peel
off the end of the label. Reapply the label after the battery is replaced.)
2. Remove the battery cover.
3. Note the "+/-" orientation of the old battery.
Battery Cover
Screw
Battery
L300 Plus
Control Unit
Note: If you are unable to
replace the battery, your
local battery supply store
should be able to assist.
Figure 9-5: Replacing the L300 Plus Control Unit battery.
Chapter 9 - Maintenance and Cleaning
97
4. Insert the new rechargeable battery in the proper "+/-" orientation.
5. Slide the cover into place.
Remove the old battery, and properly dispose of it according to
your local environmental regulations.
6. Tighten the screw.
7. Fully charge the new battery before use.
CAUTION: Use of a non-rechargeable AAA battery can damage
the L300 Plus Control Unit.
CAUTION: Use only a battery supplied by Bioness.
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User's Guide
The RF Stim Units have a rechargeable battery that can only be replaced by a
Bioness authorized representative. If the battery needs to be replaced, contact
the Bioness Client Relations Department at (800) 211-9136, Option 3.
Chapter 9 - Maintenance and Cleaning
99
Bases
Replace the L300 electrode bases if they appear worn or damaged.
To replace the L300 electrode bases:
1. Mark the position of the used L300 electrode bases on the L300 FS Cuff
liner. See Figure 9-6.
Figure 9-6: Marking the position of the used L300 electrode bases.
2. Unsnap the L300 electrode bases from the plug holes. See Figure 9-7.
Figure 9-7: Unsnapping the L300 electrode bases.
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User's Guide
3. Remove the used L300 electrode bases from the L300 FS Cuff. See
Figure 9-8.
Figure 9-8: Removing the used L300 electrode bases.
4. Attach the new L300 electrode bases where the previous bases were
attached. See Figure 9-9.
Figure 9-9. Attaching the new L300 electrode bases.
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101
5. Snap the new L300 electrode bases to the L300 FS Cuff plug holes. See
Figure 9-10.
Figure 9-10: Snapping the L300 electrode bases to the L300 FS Cuff plug holes.
6. Cover the wires and snaps with wire concealers (not included), if desired.
See Figure 9-11. Press on the wire concealers to attach them to the L300
FS Cuff liner.
Wire Concealer
Figure 9-11: Wire concealers covering the L300 electrode base wires.
CAUTION: When replacing the L300 FS Cuff, have your clinician
re-fit the L300 electrode bases.
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User's Guide
L300 FS Cuff Strap
To replace the L300 FS Cuff strap:
1. Remove the used L300 FS Cuff strap from the L300 FS Cuff buckles and
strap leads. See Figure 9-12.
Hook and Loop
Strap
Fasteners
Buckles
Strap Leads
Figure 9-12: L300 FS Cuff strap attached to the L300 FS Cuff.
2. Slide the new L300 FS Cuff strap through the strap leads and buckles.
Make sure the hook and loop fasteners face away from the L300 FS Cuff.
3. Press on the hook and loop fasteners to secure the strap.
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103
Thigh Silicone Panels
To replace the Thigh silicone panels:
1. Unsnap and remove the Thigh cloth electrodes.
2. Gently detach the loops of the silicone panels from the hooks on the Thigh
FS Cuff top and bottom panels. See Figure 9-13.
Figure 9-13: Unhooking the top silicone panel.
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User's Guide
3. Slide the band on the bottom silicone panel over the Thigh RF Stim Unit.
See Figure 9-14.
Figure 9-14: Sliding the band on the bottom silicone panel.
4. Gently pull the silicone panels away from the cloth electrode snaps. See
Figure 9-15.
Figure 9-15: Pulling the silicone panels away from the electrode snaps.
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105
5. Gently slide the new silicone panels around the electrode snaps.
6. Slide the band on the bottom silicone panel over the Thigh RF Stim Unit.
See Figure 9-16.
Figure 9-16: Sliding the band on the bottom silicone panel over the RF Stim Unit.
7. Gently hook the new silicone panels to the Thigh FS Cuff. See Figure 9-17.
Figure 9-17: Hooking the new silicone panel to the Thigh FS Cuff.
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User's Guide
Removing the L300 and Thigh RF Stim Units
The L300 and Thigh RF Stim Units should only be removed for maintenance
and to clean the FS Cuffs.
To remove the RF Stim Units:
1. Turn off the L300 Plus System.
2. Pull the top of the RF Stim Unit away from the cradle. See Figure 9-18.
Cradle
Cradle
Figure 9-18: Removing the RF Stim Units.
Note: If the fit is too tight, open the flexible cover over the RF Stim Unit
charging port for a better grasp.
3. Remove the bottom of the RF Stim Unit from the cradle.
To re-insert the RF Stim Unit:
1. Insert the bottom of the RF Stim Unit into the cradle. Then, gently push
the top of the RF Stim Unit until it snaps into the cradle.
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107
Cleaning the L300 Plus Components
All L300 Plus components may be cleaned by carefully wiping them with a
damp cloth. The electrical components are not waterproof. Do not immerse
them in water.
The L300 FS Cuff is the only component that can be immersed in water to
clean.
To clean the L300 FS Cuff:
1. Remove the L300 RF Stim Unit and, if appropriate, the large cloth electrode.
2. If using the L300 hydrogel or cloth electrodes, gently remove the electrodes
from the electrode bases. Do not remove the electrode bases. For hydrogel
electrodes, replace the electrode covers.
3. Immerse the L300 FS Cuff for 30 minutes in lukewarm water and mild
detergent. Do not use a washing machine.
4. Rinse the L300 FS Cuff thoroughly under running water.
5. Immerse the L300 FS Cuff for an additional 15 minutes in clean, lukewarm
water.
6. Rinse the L300 FS Cuff again under running water.
7. Gently blot excess moisture from the L300 FS Cuff with a towel. Do not
wring the L300 FS Cuff. Lay the L300 FS Cuff flat in the shade to dry.
(Do not hang dry.) Drying time will vary from 4 to 12 hours depending on
temperature and humidity. For faster drying, place the L300 FS Cuff in
front of a circulating cold-air fan. Do not use a hot-air dryer or other heat
source to dry.
8. When the L300 FS Cuff is completely dry, insert the L300 RF Stim Unit
and attach the electrode(s).
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User's Guide
Disinfecting the L300 Plus Components
All NESS L300 Plus System Kit components excluding the L300 FS Cuff and
the Thigh FS Cuff straps may be disinfected using CaviWipes™ (Metrex,
Orange, CA) per the manufacturer’s instructions. Metrex products are sold
through authorized dealers worldwide. If you have difficulty locating Metrex
CaviWipes, please call the Bioness Client Relations Department at (800)
211-9136, Option 3.
To disinfect the L300 Plus System components:
1. Clean the surface that faces the skin with a wet CaviWipes disinfection
wipe.
Note: Read the manufacturer's instructions for use, and follow standard
precautions for personal protection as appropriate.
2. Using one or more new CaviWipes, wipe the surface again, thoroughly,
for 3 minutes. The surface should be visibly wet.
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