Ohmeda BiliBlanket Plus Manual

BiliBlanket®Plus
High Output
Phototherapy System
Operation, Maintenance and Service Manual
PLUS
High
Med
Air Flow
Failure
Power
Photothera
Low
Medium
High
15 3.75
25 6.25
35 8.75
+
+
+
uW/cm
2
/nm
uW/cm
2
/nm
uW/cm
2
/nm
Power Level
WWarning: Intense Light
Connect Pad Prior to Operation
Transilluminator Phototherapy
Phototherapy System
BiliBlanket
®

i i6600 0341 000 04/25/00
User Responsibility
This Product will perform in conformity with the description thereof contained in this
operating manual and accompanying labels and/or inserts, when assembled, operated,
maintained and repaired in accordance with the instructions provided. This Product
must be checked periodically. A defective Product should not be used. Parts that are
broken, missing, plainly worn, distorted or contaminated should be replaced immedi-
ately. Should such repair or replacement become necessary, Ohmeda recommends
that a telephone or written request for service advice be made to the nearest Ohmeda
Regional Service Center. This Product or any of its parts should not be repaired other
than in accordance with written instructions provided by Ohmeda and by Ohmeda
trained personnel. The Product must not be altered without Ohmeda’s prior written
approval. The user of this Product shall have the sole responsibility for any malfunction
which results from improper use, faulty maintenance, improper repair, damage or
alteration by anyone other than Ohmeda.
CAUTION wFederal law in the USA and Canada restricts this device to sale by or on the
order of a licensed medical practitioner.

i i6600 0341 000 04/25/00
Table of Contents
1/General Information ..................................................................................................... 1
Description......................................................................................................................1
Light source controls, indicators and connectors............................................................4
Accessories and replacement parts................................................................................6
2/Operation ...................................................................................................................... 1
Checkout procedure before operation ............................................................................2
Checkout procedure...............................................................................................2
Using the BiliBlanket Plus High Output Phototherapy System .......................................3
Using the transilluminator ...............................................................................................6
3/Maintenance ................................................................................................................. 1
Maintenance schedule....................................................................................................1
Operator maintenance ..........................................................................................1
Service maintenance..............................................................................................1
Cleaning and disinfecting................................................................................................1
Bulb replacement............................................................................................................2
Cleaning the fan filter......................................................................................................4
Attaching the dovetail rail mounting bracket accessory..................................................4
4/Service .......................................................................................................................... 1
Repair policy and procedure...........................................................................................1
Troubleshooting ..............................................................................................................2
Functional description.....................................................................................................3
Repair procedures ..........................................................................................................4
Replacing a fuse ....................................................................................................5
Replacing the light source cover ............................................................................6
Replacing the PC board .........................................................................................6
Replacing the cooling fan.......................................................................................6
Replacing the brightness control............................................................................7
Replacing the power supply ...................................................................................7
Replacing the thermal cutout switch ......................................................................8
Replacing the optical filter assembly......................................................................8
Replacing the bulb holder ......................................................................................9
Replacing the power inlet module ..........................................................................9
Replacing a bezel/hour meter ..............................................................................10
Replacing a front bezel label................................................................................10
Electrical safety procedures..........................................................................................11
Ground continuity .................................................................................................11
Leakage current ...................................................................................................11
Light Output Measurement ...........................................................................................11
Illustrated service parts.................................................................................................13
Schematics ...................................................................................................................17
Appendix.......................................................................................................................... 1
Specifications..................................................................................................................1

ii ii6600 0341 000 04/25/00
IMPORTANT CLINICAL INFORMATION
PLEASE READ CAREFULLY BEFORE USING THIS DEVICE
Care of the Skin
The skin serves as a protective barrier against chemical, mechanical, and biological
insults. The skin is also important in the regulation of body temperature and serves as
a route of water excretion, especially in premature infants. The introduction of new
intensive-care techniques has been associated with the increased survival of very
small, premature infants. The immaturity of the skin of the very low weight infants,
coupled with excessive instrumentation and handling, poses previously unrecognized
problems for the nursing care of these infants1.
Please read, evaluate and implement the following recommendations as appropriate:
1. Please refer to the following standard of skin care recommendations as given in the
literature2 when utilizing this device with all infants. Special attention should be
given to sanitation and skin integrity.
• Observe color, rashes, excoriation
• Clean skin with warm water
• Clean perineal area after stooling
• Change infant’s position every 2 hours
2. This device is intended only for the treatment of existing hyperbilirubinemia. Use of
this device for prophylactic treatment, particularly of premature infants, is not
recommended. These infants have extremely fragile skin3and various clinical
studies have produced inconsistent conclusions concerning the effectiveness of
prophylactic phototherapy treatment 4 5.
General Precautions
1NAACOG(1992), OGN Nursing Practice Resource, Neonatal Skin Care, NAACOG.
2ibid
3Rutter, N., The immature skin, British Medical Bulletin, Vol. 44, No. 4, 1988
4Curtis-Cohen, M., et al, Randomized trial of prophylactic phototherapy in the infant with very low birth weight, TheJournal
of Pediatrics, July, 1985
5Brown, A., et al, Efficacy of Phototherapy in Prevention and Management of Neonatal Hyberbilirubinemia, Pediatrics,
February , 1988

iii iii6600 0341 000 04/25/00
General Precautions
Definitions
What the attention Next to each warning or caution, we have placed an “attention, read
symbol means accompanying documents” symbol to alert you to the presence
of these important statements. This is the attention symbol:
w
When the attention symbol appears in front of text that is printed on the system itself,
it means that the text is elaborated upon in the operation manual.
WARNING: A Warning statement is used when the possibility of injury to the patient or
the operator exists.
CAUTION: A Caution statement is used when the possibility of damage to the equip-
ment exists.
~Indicates alternating current.
mIndicates IEC Type B equipment.
TThis letter appearing before a fuselink value indicates a time delay fuselink.
Important: An Important statement is similar to a note but is used for greater empha-
sis.
Note: A Note provided additional information to clarify a point in the text.
The following are general Warnings and Cautions. Precautions specific to
certain procedures are found in the text of the manual.
WARNINGS w
Do not use the BiliBlanket Plus Phototherapy System in the presence of flammable
anesthetics; a possible explosion hazard exists under these conditions.
Service described in this manual must be performed by a technically competent
individual as described in this manual. Detailed drawings and procedures for more
extensive repairs are included in this manual solely for the convenience of qualified
personnel having proper knowledge, tools and test equipment, or for Ohmeda service
representatives.
CAUTIONS w
Servicing of this product in accordance with this service manual should never be
undertaken without the proper tools, test equipment and the most recent revision of this
service manual which is clearly and thoroughly understood.

iv iv6600 0341 000 04/25/00
Notes

1/General Information
1-1 1-16600 0341 000 04/25/00
1/General Information
In this Section
Description...................................................................................................................1-1
Light source controls, indicators and connectors.........................................................1-4
Light source and pad...........................................................................................1-4
Light source back panel ......................................................................................1-5
Accessories and replacement parts.............................................................................1-5
WARNING ww
ww
wDo not turn on or operate the BiliBlanket Plus High Output Phototherapy
System in the presence of a flammable anesthetics; a possible explosion
hazard exists under these conditions.
General Information
This manual describes how to checkout, operate and maintain the Ohmeda BiliBlanket
Plus High Output Phototherapy System. It also describes for the technically competent
person how to service the BiliBlanket Plus High Output.
Before using the BiliBlanket Plus High Output Phototherapy System
• Read through sections one through three of this manual.
• Pay special attention to the Warnings and Cautions which appear in the manual.
• Read the User Responsibility statement located on the inside front cover; it de-
scribes what is expected of the user to maintain a safe and accurate product.
• Read the Warranty; it describes Ohmeda’s responsibility in case of a functional
defect.
Keep this manual available for answering questions which may arise.
Description
The new BiliBlanket Plus High Output pad, which can be identified by the gray cable,
provides higher intensity levels than the original BiliBlanket Plus High Output pad with the
white cable. Both pads can be used with the BiliBlanket Plus High Output or BiliBlanket
Plus High Output light source box, however, the pad with the white cable will provide lower
intensity levels.
The Ohmeda BiliBlanket Plus High Output Phototherapy System uses a fiber optic cable
to deliver light from a high intensity lamp to a woven fiber optic pad. The pad is placed in a
disposable cover that is in contact with the patient. The patient is exposed to light in the
ideal 400 to 550 nanometer range for phototherapy treatment.
On units with the transilluminator option, unfiltered light in the visible spectrum travels
through a flexible light pipe to appear at the tip of the transilluminator cable. The light from
the cable is used to facilitate vascular sticks or injections. It is also used to find pneu-
mothoraces.
The BiliBlanket Plus High Output Phototherapy system consists of a light source unit and
a light pad with a four foot long fiber optic cable. The light source unit contains a lamp, light
filters, a variable power supply for the light source, a cooling system and overheating
protection near the lamp.
The light source lamp is a high intensity, tungsten halogen bulb with a built-in reflector.
The reflector is coated with a dichroic surface which reduces the infrared energy
transmitted. This bulb is specifically manufactured for use with the BiliBlanket Plus High
Output.

1/General Information
1-2 1-26600 0341 000 04/25/00
A light filter, positioned in front of the lamp, rejects light outside the 400 to 550 nanom-
eter range. This filter blocks nearly all ultra-violet and infrared light; only the blue light is
allowed to pass. This filtered light is focused on the inlet of the fiber optic cable.
Light intensity may be selected by the front panel brightness rotary control. Control
range is from 19± 4.75 µW/cm2/nm at full counter clockwise to 45± 11.25 µW/cm2/nm
at full clockwise with a medium detent at 32± 8 µW/cm2/nm. See Light Output Measure-
ment Procedures in Section 4 for precise light output measurement.
Mode select
Selects the operating mode ; phototherapy or transillumination. Using the Ohmeda
transilluminator light pipe, the BiliBlanket Plus High Output System can be used as a
transilluminator.
Supply power
Power for the light source unit can be supplied by any standard AC mains power
source at either 50 or 60 Hz that have voltages in the range: 90 - 132 or 180 - 264.
Power enters the light source through a receptacle that has an integral power switch.
Cooling
A fan cools the light source unit. A thermal cutout switch located next to the light-filter
protects the light source unit and fiber optic cable or transilluminator from overheating.
Fiber optic cable
The fiber optic cable contains 2400 individual plastic fibers which transmit the light from
the light source to the light pad. The light pad is constructed by weaving these fibers
into a mat. This patented process produces a pad with light over the entire surface.
These fibers are randomized in the cable to eliminate any local intensity gradients due
to bulb hot spots, dust on the filter, dust on the cable end, etc. This allows the nearly
uniform, continuous blanket of light. A disposable protective pad cover is provided to
reduce the risk of cross-contamination and make the patient more comfortable.
Disposable cover
The disposable cover is designed for use with both premature and full-term infants. The
infant lies directly on the disposable-covered pad without any method of attachment
between the pad and the infant.

1/General Information
1-3 1-36600 0341 000 04/25/00
Disposable vest
A disposable vest is designed to secure the fiber optic pad to the infant. With the
disposable vest, it is possible to hold and nurse the infant while continuing photo-
therapy treatment. The disposable cover should be used for premature infants and full-
term infants who can’t tolerate having the vest secured around the midsection.
Transilluminator
The transilluminator light pipe contains plastic fibers which transmit light from the light
source to the tip.

1/General Information
1-4 1-46600 0341 000 04/25/00
Light source controls, indicators and connectors
Figure 1-1
Light source, pad and transilluminator cable
Nontransilluminator Unit
4
Transilluminator Unit
CI.29.001,.002
6321
165432
7
8

1/General Information
1-5 1-56600 0341 000 04/25/00
Refer to Figure 1-1.
Power indicator
1. The green light-emitting diode (LED) lights when the light source unit power is on.
Air flow failure indicator
2. The red light-emitting diode (LED) lights when there is an air flow failure.
Timer
3. Nonresettable timer runs whenever the bulb is turned on.
Brightness selector
4. The rotary control selects the light intensity, and has a center detent at the medium
intensity position. (see Table 1-1 for light intensity values).
Mode select
5. The mode select slide selects the operating mode: phototherapy or transilluminator.
Light source port
6. The light source port is for attaching the fiber optic cable connector or transillumina-
tor.
Pad assembly
7. The pad assembly attaches to the light source port. Light is fed through the optical
fiber cable to the optical fiber woven pad.
Transilluminator cable
8. The cable attaches to the light source port. Light appears at the tip.
BiliBlanket Plus High Output
Phototherapy System
12
Figure 1-2
Light source back
Refer to Figure 1-2.
Power cord receptacle
1. The power cord plugs into the power cord receptacle.
Power switch
2. The power switch switches the light source unit on.
CI..29.003

1/General Information
1-6 1-66600 0341 000 04/25/00
Accessories and replacement parts
Table 1-2
Stock number Item
6600-0213-800 Carrying case
6600-0270-200 Disposable covers (50)
6600-0461-200 Disposable vest (50)
6700-0025-800 Mobile stand, less accessories
6700-0014-800 Mobile stand slide bracket assembly, female
6600-1974-101 User card
6600-0656-801 Pad assembly, English
6600-0656-802 Pad assembly, French
6600-0656-803 Pad assembly, Spanish
6600-0656-804 Pad assembly, German
6600-0656-805 Pad assembly, Italian
6600-0656-806 Pad assembly, Swedish
6600-0656-807 Pad assembly, Japanese
6600-0656-808 Pad assembly, Russian
6600-0656-809 Pad assembly, Greek
6600-0656-810 Pad assembly, Dutch
6600-0656-811 Pad assembly, Portuguese
6600-0730-207 Power Cord, North America (120V)
6050-0002-259 Power Cord, United Kingdom
6030-0000-006 Power Cord, Continental Europe
6600-0522-800 Transilluminator
6600-0031-900 Dovetail rail mount slide bracket kit, female (See A, Figure 1-3)
6600-0198-800 Dovetail rail mount slide bracket accessory, male* (See B, Figure 1-3)
6600-0680-200 Replacement lamps (6)
6600-0531-800 Transilluminator or accessories pouch
* Allows the BiliBlanket Plus High Output to be attached to the dovetail rail mount slide bracket by using two of the
mounting screws on the left side of the light source unit.
Figure 1-3
Slide mounting bracket accessory slides into a dovetail mount slide bracket
Dovetail rail systems are used to mount accessories on Ohio®Care Plus®incubators
and Infant Warmer Systems.
B
6600-0198-800
A
6600-0031-900
CI.01.032,033

2/Operation
2-1 2-16600 0341 000 04/25/00
2/Operation
In this section
Checkout procedure before operation .........................................................................2-2
Using the BiliBlanket Plus High Output Phototherapy System ....................................2-3
Using the Transilluminator ...........................................................................................2-6
WARNING ww
ww
wDo not use the BiliBlanket Plus High Output Phototherapy System in the
presence of flammable anesthetics; a possible explosion hazard exists
under these conditions.
Factors which affect light output and life
Lamp light output and life are affected by various factors among which are:
• Lamp variations
• Brightness selector setting
• Vibration and mechanical shock
• Non-recommended lamp
Bulb variations
The light output from bulb to bulb may vary by as much as 10%.
Intensity setting
The bulb life will vary greatly with the intensity at which the light source is operated. For
example, operating at the lowest brightness setting may yield a nominal bulb life of as
high as 10,000 hours, but operating at the highest brightness setting may yield a
nominal bulb life of as low as 800 hours.
Vibration and mechanical shock
Vibration and mechanical shock will significantly reduce the bulb life. Care should be
taken when moving the light source. To maximize the bulb life, the light source should
be mounted or placed on a surface which is stable and not exposed to vibration.
CAUTIONS wAllow the light source to cool for a minimum of ten minutes before moving the
light source or changing the bulb.
wTo ensure the proper operation and light intensity, replace the lamp only with
the proper lamp as listed in the Appendix. Use of other lamps will affect the
performance of and may result in damage to the BiliBlanket Plus High Output
Phototherapy System.
wUse only Ohmeda light pad assemblies or transilluminator cables. Light pads or
transilluminators from other manufacturers can affect performance and may
damage the unit.

2/Operation
2-2 2-26600 0341 000 04/25/00
Non-recommended lamps
Using any lamp other than that recommended and distributed by Ohmeda for the
BiliBlanket Plus High Output system will affect the performance of and may result in
damage to the light source or the fiber optic pad or transilluminator.
Checkout procedure before operation
Before operating the Ohmeda BiliBlanket Plus High Output Phototherapy System, the
following steps should be taken to ensure that the BiliBlanket Plus High Output will
provide effective phototherapy treatment or the transilluminator delivers the proper
light. This checkout procedure assumes that you are familiar with the unit’s controls.
CAUTIONS wLamp life is greatly reduced if the lamp or the light source is subjected to shock
or bumping, or if the unit is moved while the bulb is hot. Allow the bulb to cool
for at least ten minutes before moving the unit.
wDo not allow the fiber optic cable, pad or transilluminator to rub on sharp or
abrasive surfaces. The protective coverings may be damaged.
wObserve the following fiber optic cable and pad assembly and transilluminator
guidelines:
• If you hang the fiber optic cable and pad or transilluminator assembly for tempo-
rary storage on an IV pole, door, wall hook or similar item, do not pull the cable
when removing it for use. Carefully lift the cable free of obstructions when ready
to use it.
• Do not lay the fiber optic cable or transilluminator where it could be crushed.
• Do not place anything on the fiber optic cable or transilluminator.
Not observing the guidelines may cause excessive stress and may:
• damage the cable’s outer protective conduit,
• damage the cable’s optical fibers,
• decrease light intensity at the light pad or transilluminator.
Checkout procedure
1. Place the light source on a flat, level surface (or use the mounting slide bracket) to
locate the light source within a few feet of the treatment location.
2. Verify that the air circulation vents on the sides of the light source are unobstructed.
The air filter should be free from excessive amounts of lint.

2/Operation
2-3 2-36600 0341 000 04/25/00
CAUTION wDo not block the air intake or outlet.
3. Examine the power cord, fiber optic cable and transilluminator cable for obvious
signs of damage. Replace them if they are damaged.
4. Connect the power cord to the light source first and then to the line power supply.
5. Fully engage the fiber optic cable connector or transilluminator into the light source
port.
CAUTION wDo not scratch or soil the light-input end of the connector cable. Do not put
sharp or heavy objects on the fiber optic pad, vest or connecting cable.
6. Select “|” on the power switch to turn the power on. The green power indicator light
will light.
7. Using the brightness selector switch on the front panel, select any light intensity and
ensure that light is being emitted from the pad.
8. Select “O” on the power switch to turn the power off.
WARNING ww
ww
wA hot surface is exposed when the fiber optic cable is disconnected from
the light source port. Do not insert fingers or foreign objects into the light
source port whether the lamp is on or off.
Using the BiliBlanket Plus High Output Phototherapy System
The disposable cover is designed for use with both premature and full-term infants. The
infant lies directly on the covered pad without any method of attachment between the
pad and the infant.
WARNING wIf there is a concern about exposure to direct light from the light pad,
cover the patient’s eyes when using the BiliBlanket High Output Plus
Phototherapy System to shield them or when the BiliBlanket Plus High
Output is used in conjunction with conventional phototherapy lights. Eye
patch use with the BiliBlanket Plus High Output may not be necessary
under these conditions:
1. When using the vest.
2. When the pad is kept against the patient’s back.
3. When the patient is clothed after applying the pad to the patient’s chest
or abdomen.
The disposable vest secures the fiber-optic pad to the infant. For premature and full-
term infants who cannot tolerate having the vest secured around the midsection, the
disposable cover should be used.
The infant, along with the light pad, may be covered or wrapped in a blanket. The infant
will continue to receive effective phototherapy treatment as long as the disposable-
covered, light-emitting section of the pad remains in contact with the skin.
The disposable cover should be the only material between the light-emitting side of the
pad and the infant’s skin. If the disposable cover becomes soiled, it should be replaced
with a new cover. The disposable cover should also be replaced between patients.

2/Operation
2-4 2-46600 0341 000 04/25/00
Important: The Pad must be covered with the disposable cover or disposable vest as de-
scribed above. Do not use the Pad without the disposable cover or vest.
CI.01.007,008,009,010
Figure 2-1
Inserting the light pad into the cover or vest
WARNINGS wThe light source unit is not waterproof. Locate the unit where it will not be
exposed to liquids. Liquids that enter the unit can damage it and create
an electric shock hazard.
wNever place the light source inside the infant compartment of a incubator,
warmer or bassinet; these conditions expose the infant to possible injury.
1. Inserting the light 2. Adhesive tabs
pad into the vest. fastened around the
optic cable.
1. Inserting the light 2. Adhesive tabs
pad into the cover. fastened around the optic cable.
CI.01.007.f0296

2/Operation
2-5 2-56600 0341 000 04/25/00
1. Mount the BiliBlanket Plus High Output System on a radiant warmer, incubator, or
stand, or place it so that it sits on a flat, solid surface within a few feet of the baby.
The light source can be placed flat on its side or upright.
2. Insert the fiber-optic pad into a new, disposable cover or vest. The white side of the
disposable vest goes over the clear illuminating side of the pad. Be sure to insert
the pad all the way in to the end of the vest/cover. See Figure 2-1.
3. Secure the cover or vest around the pad cable with the adhesive tabs. See Figure
2-1.
4. Connect the power cord to the light source and plug into a grounded electrical
outlet.
5. Firmly place the fiber-optic cable connector into the light source port. Ensure that
there is no pressure or strain on the cable. The cable disconnects easily from the
light source as a safety precaution to help prevent the light source from being
knocked over when the cable is pulled beyond its length during treatment.
6. Lay the covered light pad on the mattress or other flat surface with illuminating side
(side without label) facing up. Place the infant’s back or chest directly on the white
side of the pad with the tip of the pad at the baby’s shoulders and the pad’s cable
at the infant’s feet. See Figure 2-2. Ensure that:
• as much of the infant’s skin is in direct contact with the lighted section of the
pad as is possible (diapers may be worn)
• there is nothing between the infant’s skin and the light pad other than the
disposable cover (clothing may be worn over the pad)
• the baby’s eyes are not directly exposed to the covered light pad.
7. When using the vest, wrap the strap section snug around the infant’s mid section to
hold the pad in position and secure it with the tape tabs. See Figure 2-3.
8. Set the brightness variable intensity knob on the front panel to the intensity level
prescribed.
9. Turn the power switch to on.
The baby may be clothed or bundled in a blanket and will continue to receive effective
phototherapy treatment as long as the lighted section of the pad remains in contact with
the skin (it is light from the pad penetrating the outer few millimeters of skin which
results in the isomerization of the bilirubin molecule). Using the vest, it is possible to
hold and nurse the infant while continuing treatment.
Important: Be sure that the maximum area of illumination is in contact with the
patient’s skin.
Figure 2-2
Placing the infant onto the pad with cover
CI.01.028

2/Operation
2-6 2-66600 0341 000 04/25/00
1. Place infant on light pad covered 2. Secure disposable vest around infant.
with a disposable vest.
Placing the infant onto the pad with vest
CAUTION wLamp life is greatly reduced if the lamp or the light source is subjected to shock
or bumping, or if the unit is moved while the bulb is hot. Allow the bulb to cool
for at least ten minutes before moving the unit.
10. When the treatment is completed, switch off the light source power switch and
remove the pad and vest. Remove and discard the disposable vest.
Using the transilluminator
WARNING ww
ww
wLight from the tip of the tranilluminator is a form of energy and can cause
heating of the skin. Reposition the tip of the transilluminator often, particularly
if you notice redness of the skin. In this case you may consider lowering the
light output with the intensity control knob to avoid heat burn.
1. Remove the phototherapy fiber optic cable from the light source.
2. Using the mode select slide switch, select transilluminator.
3. Insert the transilluminator light pipe into light port.
4. Turn power switch on.
5. Adjust the light intensity using the variable intensity knob.
6. When the transilluminator is no longer needed, return to phototherapy mode.
7. Turn off the power switch.
8. Disconnect the transilluminator light pipe.
9. Using the mode selector switch, select phototherapy.
10. Connect the phototherapy cable to the light port.
CI.01.027,029

3/Maintenance
3-1 3-16600 0341 000 04/25/00
3/Maintenance
In this section
Maintenance schedule.................................................................................................3-1
Operator maintenance ........................................................................................3-1
Service maintenance...........................................................................................3-1
Cleaning and disinfecting.............................................................................................3-1
Bulb replacement.........................................................................................................3-2
Cleaning the fan filter...................................................................................................3-4
Attaching the dovetail rail bracket................................................................................3-4
Maintenance schedule
Maintain the unit in accordance with the information below:
Operator maintenance
After each patient: Replace the disposable cover or vest.
Weekly or after each patient: Clean the unit. Check the air filter on the side of
the light source (see Figure 4-6) for lint and dust
accumulation and vacuum clean if necessary.
Quarterly: Clean the air filter. Clean the light input end of
the phototherapy and transilluminator connector
cables.
Note: This is the minimum cleaning frequency. The air filter must be cleaned whenever
it appears dirty, depending on the concentration of lint and dust in the operating envi-
ronment.
Service maintenance
Annually Perform the electrical safety procedures
described in section 4/Service.
According to your health Ensure that the required light output is being
care institution protocol for emitted. Refer to Light Output Measurement
electrical equipment Procedures. In order to achieve maximum
treatment benefit, it is recommended that the light
output be checked prior to use with each patient.
Cleaning and disinfecting
WARNING wMake sure the light source power cord is disconnected from the power
source before cleaning and that the unit is completely dry before using it.
CAUTIONS wNever immerse the light source in liquid. The electronic circuitry can be short-
circuited, causing permanent damage.
wNever immerse the pad, vest or connecting cable in liquid.
wUse the cleaning solution sparingly on a cloth when cleaning the exterior of the
light source. Do not saturate the unit - excessive solution may flow into the
light source causing damage to internal components.
wDo not autoclave or gas sterilize the BiliBlanket Plus High Output Phototherapy
System.

3/Maintenance
3-2 3-26600 0341 000 04/25/00
1. Unplug the power cord and allow the light source to cool for at least ten minutes.
2. Clean the outside of the light source using a mild detergent solution on a damp
cloth or sponge. Aqueous solutions which are both hospital disinfectants and
mycobactericides may be used.
Do not allow liquids to seep into the housing.
Dry the light source surface with a clean, soft, cloth.
3. The pad assembly and transilluminator must be cleaned without immersing by
using a disinfecting agent safe for use on the materials. Aqueous solutions which
are both hospital disinfectants and mycobactericides may by used.
Never use an abrasive cleaner on the pad, the cable, the connector or the transillu-
minator.
4. Thoroughly rinse the pad to remove any cleaning solution residue.
CAUTIONS wDo not use a phenolic compound based cleaner. Phenolic compounds have
been associated with elevated bilirubin levels in infants.
wExposing the fiber-optic pad’s plastic cover to strong cleaning solutions or
ultra-violet light can cause premature breakdown of the plastic material. Clean-
ing solutions that discolor the pad, such as iodine solutions, will reduce the
pad’s light output. Do not place the pad in direct sunlight. Do not use iodine
solutions, strong acids, strong alkali, or bleach solutions to clean the pad.
The following table lists some cleaning solutions:
Generic Formulation: Maximum concentration level:
Hydrogen peroxide 6%
Sodium hypochlorite 100 parts/million
Cavicide®100% spray
Table 3-1
Cleaning and disinfecting solutions
Bulb replacement
WARNINGS wDisconnect the power cord from the power source before opening the
bulb access door.
wAllow the bulb to cool for at least ten minutes before attempting to re-
move it.
CAUTION wTo ensure the proper operation and light intensity, replace the bulb only with
the Ohmeda bulb listed in Specifications in the Appendix. Use of other bulbs
will affect the performance of, and may result in damage to, the BiliBlanket
Plus High Output Phototherapy System.