Nellcor Puritan Bennett Incorporated is an affiliate of Tyco Healthcare
Group LP. Puritan Bennett and HELiOS are trademarks of Nellcor Puritan
Bennett Incorporated.
To obtain information about a warranty, if any, contact Puritan Bennett’s
Technical Services Department, or your local representative.
Covered by one or more of the following U.S. Patents and foreign
equivalents: 6,742,517 and 6,575,159.
This device is intended only for the delivery of medical grade oxygen as
prescribed by your physician.
If you have questions about the operation of the equipment, please contact
your oxygen supplier.
This section contains important safety information related
to general use of the HELiOS
Oxygen System, which consists of the H850 Portable and
a Reservoir.
Other important safety information appears throughout
the manual in sections that relate specifically to the
precautionary information. Be sure to read all text
surrounding all precautionary information.
Before use, carefully read this manual and all precautionary
information in boldface type, and product specifications.
Warnings
®
Marathon H850 Personal
Warnings are identified by the WARNING symbol shown
above or other relevant symbols, as shown.
Warnings alert the user to potential serious outcomes
(death, injury, or adverse events) to the patient or user.
WARNING: Oxygen supplied from this equipment is
for supplemental use and is not intended to be life
supporting or life sustaining. This equipment is not
intended for use by patients who would suffer
immediate, permanent, or serious health consequences
as a result of an interruption in the oxygen supply.
5
H850 Safety Information
Do not smoke near this equipment. Keep cigarettes or
burning tobacco away from the area where equipment
is operated.
Keep flammable materials away from this equipment.
Oils, grease, including facial creams and petroleum
jelly, ignite easily and may burn rapidly in the
presence of oxygen. Never lubricate any part of this
equipment.
Do not touch liquid oxygen or parts that have been in
contact with liquid oxygen. Liquid oxygen is extremely
cold (-297 °F / -183 °C). When touched, liquid oxygen,
or parts of the equipment that have been carrying
liquid oxygen, can freeze skin and body tissue.
Always keep the Reservoir in an upright position.
Always keep the H850 Portable in one of the following
positions: upright, flat on its back or any position in
between.
WARNING: When transporting the H850 Portable,
position the H850 horizontally, flat side down, to
ensure it does not tip over. Tipping over and falling off
a transport surface could damage the H850 Portable
or cause personal injury.
Keep this equipment away from electrical appliances.
Use and store Reservoir and H850 Portable at least
five feet from electrical appliances that may cause heat
or sparks.
6H850 Home Use Guide
H850 Safety Information
Keep oxygen equipment away from open flames. Use
and store Reservoir and H850 Portable at least five
feet away from equipment such as furnaces, water
heaters, and stoves that may contain open flames.
Keep equipment in a well-ventilated area at all times.
The Reservoir and H850 Portable periodically release
small amounts of oxygen gas that must be ventilated to
prevent buildup. Do not store liquid oxygen equipment
in a closet, car trunk, or other confined area. Do
not place blankets, draperies, or other fabrics
over equipment.
Do not carry the H850 Portable under your clothing.
The Reservoir and H850 Portable normally vent
oxygen. Wearing a H850 Portable under clothing may
saturate fabrics with oxygen and cause them to burn
rapidly if exposed to sparks or flame. It may take
several hours for oxygen levels in fabric to return
to normal.
WARNING: Never tamper with the equipment. Doing
so could create a hazardous condition and possibly
cause the equipment to work improperly.
WARNING: Always keep tubing or oxygen supply
line away from path of walking to avoid potential trip
or fall.
WARNING: Use only with recommended supply line.
Connecting the H850 Portable to a wrong gas source
could cause inhalation of hazardous substances.
7
H850 Safety Information
WARNING: Do not open the vent valve during non-fill use,
or put it into any position other than the closed, upright, or
vertical position.
Cautions
Cautions are identified by the CAUTION symbol shown
above.
Cautions alert the user to exercise care necessary for the
safe and effective use of the H850 Personal Oxygen
System.
CAUTION: Consistent with the recommendations of
the medical community on the use of conserving
devices (which includes the nasal cannula), it is
recommended that the H850 Personal Oxygen System
be qualified on patients in the situations it will be used
(rest, exercise, sleep). Differences in nasal cannula
design may vary the ability to trigger a conserving
device.
CAUTION: Although there are no risks associated
with the disposal of any components within this device,
in the interests of environmental protection, it is
recommended that all used or faulty components that
are under warranty be returned to the manufacturer.
CAUTION: Remove the 9 volt battery from the
Reservoir contents indicator if it will not be used for
some time (see manual section Low Battery Level).
Carefully dispose of the 9 volt battery from the
Reservoir contents indicator with due regard for the
environment.
8H850 Home Use Guide
Notes
H850 Safety Information
Notes are identified by the NOTE symbol shown above.
Notes are listed before or after procedural steps or
information and provide additional guidelines or
information on the subject being described.
9
H850 Safety Information
Definition Of Symbols
SymbolDefinition
Reservoir Full
Reservoir Empty
Portable Full
Portable Half Full
Portable Empty
Low Battery
Drip Proof
Type BF (Electrical Safety)
Manufacturer
1 bar = 14.5 psi
10H850 Home Use Guide
Definition Of Symbols (continued)
SymbolDefinition
Refer to documentation for
information.
H850 Safety Information
SN
Serial Number
Fragile. Handle with care.
Keep dry
Non-flammable, non-toxic gas.
Oxygen is a non-flammable, nontoxic gas.
Fire intensifying risk. High
concentration of oxygen can cause
rapid burning of other substances.
This device complies with the
requirements of Directive 93/42/
EEC concerning medical devices.
It therefore bears the CE marking
as shown.
This pressure vessel complies with
the requirements of Directive 1999/
36/EC concerning transportable
pressure equipment. It therefore
bears the Pi marking as shown.
11
H850 Safety Information
Label Description
Legend
1Working Pressure
2Test Pressure
3Tare Mass
4Water Capacity
5Inspection Mark
SN
Serial Number
Refer to Manual
12H850 Home Use Guide
Introduction
Yo ur HELiOS® Marathon H850 Personal Oxygen System
is designed to store and deliver oxygen at a prescribed
rate. The system consists of the H850 Portable and a
Reservoir.
It is recommended that you breathe your prescribed
oxygen rate from the H850 Portable. The H850 Portable
can be supplied with oxygen for you to breathe in
two ways.
1. You may fill the H850 Portable with liquid
oxygen so you can be free to move about your
home or leave your home for extended periods.
2. You can connect the H850 Portable to the HELiOS
Reservoir. See the section Connecting the H850 Portable to the HELiOS Reservoir.
The H850 System was designed to maximize your
freedom of movement. You can fill the H850 Portable
with liquid oxygen from the Reservoir every day to use as
far from the Reservoir as you desire.
When you are in your home and not moving about, such
as in the evening or while you are sleeping, you are
encouraged to connect the H850 Portable to a HELiOS
Reservoir with an oxygen supply line (demand mode
only). When the H850 Portable is connected to a HELiOS
Reservoir in this manner, the oxygen you breathe is
supplied by the Reservoir.
Your oxygen supplier or home care provider must refill
your Reservoir periodically depending upon your rate of
oxygen use.
13
Introduction
Reservoir
(5)
(4)
(1)
(2)
(3)
(1)Liquid Oxygen Fill Connector: Used to fill the H850
Portable with liquid oxygen.
(2)Release Button: Used to disengage the Portable from the
Reservoir after filling.
(3)Moisture Container: Used to collect water that may
accumulate.
(4)Oxygen Outlet Connector: Used to directly supply gaseous
oxygen to the Portable or to an external flow control.
(5)Contents Indicator: Displays amount of liquid oxygen
remaining in the Reservoir.
14H850 Home Use Guide
H850 Portable — front view
Introduction
(6)
(1)
(2)
(5)
(3)
(4)
(1)Flow Control Knob: Adjustable, rotary valve used to control
the rate of oxygen delivery and to select either continuous flow
or demand flow.
(2)Oxygen Delivery Connector: Attach one tube of dual-lumen
cannula to receive oxygen from the H850 Portable.
(3)Sense Connector: Attach one tube of dual-lumen cannula to
start and stop oxygen flow with each breath.
(4)Liquid Oxygen Fill Connector (on the bottom): Used to
connect H850 Portable to the Reservoir during the filling
process.
(5)Oxygen Inlet Connector: Attach oxygen supply line to
supply H850 Portable with gaseous oxygen from the
Reservoir.
(6)Carrying Handle
15
Introduction
H850 Portable — rear view
(4)
(3)
(1)
(2)
(1)Vent Val ve: Used to start and stop the filling process.
(2)Liquid Oxygen Fill Connector: Used to fill the H850
Portable with liquid oxygen.
(3)Contents Indicator: Displays the amount of liquid oxygen in
the H850 Portable.
(4)Contents Indicator Strap: Used to lift the H850 Portable to
measure the amount of oxygen it contains.
16H850 Home Use Guide
Introduction
Other parts of your personal oxygen system include:
Dual-lumen
Cannula
Back Pack
(optional)
17
How To Use Your H850
Personal Oxygen System
Filling the H850 Portable
Fill the H850 Portable from the Reservoir as follows:
WARNING: Using a dry, lint free cloth that is clean, wipe
the fill connector dry on both the Reservoir and H850
Portable before filling to prevent freezing and possible
equipment failure.
WA R NI N G : Extreme cold hazard. Do not press or
disturb the plastic poppet (shown below) in the center
of the fill connector on the Reservoir. This will cause a
release of liquid oxygen from the fill connector.
poppet
19
How To Use Your H850 Personal Oxygen System
1. Check the contents indicator on the Reservoir by
pressing the blue button to ensure there is enough
liquid oxygen for filling purposes. If the yellow light
comes on, you may proceed with filling the H850
Portable, but you should inform your oxygen supply
company.
2. Using a clean, dry, oil-free cloth, wipe the male fill
connector on the Reservoir and female fill connector
on the H850 Portable.
3. Position the H850 Portable over the recessed area in
the top of the Reservoir. (Figure 1).
Figure 1: Positioning the H850 Portable
for filling
4. Carefully lower the H850 Portable into place,
ensuring that the fill connectors are properly aligned.
20H850 Home Use Guide
How To Use Your H850 Personal Oxygen System
5. Place one or both hands on top of the H850 Portable
and press straight down directly over the fill
connector, being careful not to depress the release
button on the Reservoir when engaging (Figure 2).
This will lower the H850 Portable approximately 3/8
inch (10 mm). Continue to apply downward force to
ensure the fill connectors remain engaged.
6. While holding the H850 Portable in the fill position,
Figure 2, pull down and hold the vent valve lever in
the open position (90° from the normal OFF position).
A hissing noise should be noticeable. During filling,
maintain a slight downward force on the H850
Portable with one hand to keep the H850 Portable
steady, and maintain proper filling position. Do not
allow the Portable to move upward until fill is
complete.
WARNING: Do not open the vent valve during non-fill use.
Excessive discharge of liquid oxygen could create a fire
hazard and/or cause personal injury.
21
How To Use Your H850 Personal Oxygen System
push down
and hold
vent valve
Figure 2: Filling the H850 Portable
Note: Fill time is usually between 60 and 80 seconds
when the H850 Portable is empty. The amount of
time to fill the H850 Portable depends on the
amount of oxygen remaining in the H850 Portable.
WARNING: Do not leave the H850 Portable unattended
during the filling operation.
7. When you notice a change in the sound of venting gas
followed by a dense, white vapor forming around the
Reservoir cover, close the H850 Portable vent valve
by returning the vent lever to the upright position.
22H850 Home Use Guide
How To Use Your H850 Personal Oxygen System
CAUTION: If the vent valve fails to close and the
hissing continues, remove the H850 Portable by
depressing the H850 Portable release button on the
Reservoir. Ensure that the Portable is kept upright
and is not tipped at all during this time. The H850
Portable will stop venting in a few minutes. Allow the
H850 Portable to warm until you can close the vent
valve. The H850 Portable may require as much as 60
minutes to restore adequate pressure for accurate
oxygen flow. An alternate source of oxygen, such as a
flow control valve attached to the Reservoir, can be
used if needed.
Note: For shorter planned use times, you can partially fill
the H850 Portable by closing the vent valve sooner
than normal. The H850 Portable will then be lighter
to carry.
23
How To Use Your H850 Personal Oxygen System
8. Disengage the H850 Portable from the Reservoir by
holding the carrying handle and depressing the release
button (Figure 3). Always hold the H850 Portable with
at least one hand when attempting to disengage it.
(2)
(1)
Figure 3: Disengaging the H850 Portable
(1)Press H850 Portable release button.
(2)Lift H850 Portable up and off the Reservoir.
CAUTION: If the H850 Portable will not disengage
easily from the Reservoir, they may have become
frozen. Do not use force. Simply allow a few minutes
for the frozen parts to warm, then disengage the H850
Portable when the ice has melted.
24H850 Home Use Guide
How To Use Your H850 Personal Oxygen System
WARNING: If a major liquid oxygen leak from the
Reservoir fill connector occurs when you disengage the
H850 Portable — that is, a steady stream of liquid
oxygen — step away from the Reservoir and notify
your oxygen supplier immediately. Stay away from the
Reservoir until your supplier ensures that it is safe.
CAUTION: If a minor liquid oxygen leak from the
Reservoir fill connector occurs when you disengage the
H850 Portable, re-engage and disengage the portable
to help dislodge any ice or other obstruction. If the
liquid oxygen leak persists, notify your oxygen
supplier.
Note: Immediately after filling, you may hear a slight
hissing sound from the H850 Portable. This is
normal and will stop after a few minutes.
CAUTION: If the hissing sound from the H850
Portable does not stop within a few minutes after a fill,
and excessive visible frosting develops on the Portable,
see Note 3 in the Troubleshooting section.
9. Check the oxygen contents indicator, Figure 4, to
make sure the H850 Portable is filled to the desired
level. The amount of liquid oxygen contained in the
H850 Portable is measured by an internal scale that is
built into it. To operate the contents indicator:
a. Lift the H850 Portable by the contents indicator
strap;
b. Push the bottom backside of the H850 Portable so
that it is straight up and down; and
25
How To Use Your H850 Personal Oxygen System
c. Observe the green bar that displays the liquid
oxygen contents level inside the clear window.
(a)
(b)
Figure 4: Checking H850 Portable
oxygen contents
Notes:
(c)
1. Do not try to overfill the H850 Portable. Once
you hear the change in the sound of venting gas
and see the cloud of white vapor, the H850
Portable is full. Continuing the fill process will
not put any more oxygen in the H850 Portable.
Overfilling may cause drops of liquid oxygen to
spray from the bottom of the H850 Portable.
2. After each fill, do not try to refill the H850
Portable again for at least 30 minutes. This will
prevent the possibility of the H850 Portable
wasting oxygen and prevent the vent valve from
potentially freezing.
3. The number of times that you have to fill up or
top off your H850 Portable depends on which
setting is prescribed by your doctor and the
frequency of your breath rate. On average, a
setting of 2 in demand mode lasts about 18 hours.
26H850 Home Use Guide
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