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CRYO2 Liquid Oxygen System Instructions

Your primary oxygen system is called a Liquid Oxygen Reservoir (large unit). It is designed to be a stationary unit and cannot be moved by the patient.

Your portable oxygen system is called an Oxygen Walker (smaller unit). It may be filled from the primary reservoir when you require increased portability, such as doctor office visits, shopping, going for walks, etc.

Read and follow all instructions, including the general precautions for the safe use of oxygen in the home which has been provided.

I. Primary Oxygen System - Large Reservoir Unit

A. The Sparrow Regional Medical Supply Representative will place the large reservoir unit in the location that you specify, a central area is recommended when possible. (The reservoir must not be placed near heat sources.) A long length of tubing may be attached to allow you greater mobility to adjacent rooms or areas. DO NOT ATTEMPT TO MOVE THE LARGE RESERVOIR UNIT. If you wish to change the location of your unit, please call Sparrow Regional Medical Supply  and a representative will relocate the unit for you.

B. A humidifier bottle may be attached to the threaded outlet on the front of the unit. The representative will instruct you and/or family members on how to change and reconnect this humidifying device. Make sure all connections are tight in order to prevent leaks.

C. Small diameter tubing from your oxygen cannula or mask is attached to the plastic nipple.

D. The oxygen flow control knob is located just above the nipple. This knob is used to turn the oxygen "on" or "off". Use your oxygen as prescribed by your physician; in other words, the specified number of hours per day at the ordered flow rate. If your doctor changes your oxygen prescription, please notify Sparrow Regional Medical Supply.

E. Adjust the flow control knob to perscribed liters per minute, which is prescribed by your doctor and attach the cannula or mask to your face. When not using your oxygen, always turn the flow control knob to "zero" or "off".

F. A meter located on the top of the reservoir unit indicates the amount of oxygen remaining. Use the following link for a chart of Duration Times (.pdf, Adobe Acrobat required.)

G. A Sparrow Regional Medical Supply Representative will deliver additional liquid oxygen to your home one to two times per week, depending upon your usage. If the meter needle points to 1/4 or lower, call Sparrow Regional Medical Supply.

II. Cryo2 Portable Oxygen System - Small Unit

A. The portable oxygen system is designed to provide a limited supply of oxygen while away from home. View the following link for a chart of duration times. Liquid Oxygen Duration Times (.pdf, Adobe Acrobat Reader required.)

NOTE: If unit has "pulsed" switch and is set at "pulsed" rather than "continuous", it will provide oxygen for a longer period of time.

B. To fill the portable unit:

1. Wipe moisture off the metal couplings on the large reservoir and on the bottom of the small portable unit.
2. Turn the flow control knob on the portable unit to "zero". The flow control knob on the large reservoir unit may remain on the prescribed setting during filling of the portable.
3. Observe that the needle on the meter at the top of the large reservoir is 1/4 or higher.
4. Mate the metal coupling on the large reservoir with the coupling on the bottom of the small portable unit. Align the yellow arrows so that they point at each other.
5. Press down gently on the top of the portable unit and rotate it counter clockwise ( in the direction of the arrow) about 1/4 turn.
6. Lift the black handle marked "vent valve". You will hear a hissing sound as the portable unit fills, this takes approximately 30 seconds.
7. The unit is full when you see a large amount of vapor escaping from the bottom of the portable. To stop filling, flip the "vent valve" handle down.
8. Wait approximately 30 seconds, then rotate the portable unit clockwise about 1/4 turn. Lift the portable unit to separate it from the large reservoir tank.
9. Lift the portable unit by the handle or strap attached to the scale. Observe that the scale indicates "full". If the scale does not read "full", repeat steps 4 through 9.

C. To use the portable oxygen unit, simply turn the "Flow Control" knob to the prescribed setting and attach the tubing. No humidifier bottle is necessary due to short term use. Occasionally check the scale to determine the amount of oxygen remaining in order to prevent the possibility of running out of oxygen while away from home.

Following are approximate hours of oxygen remaining with flow control set.

Liquid Oxygen duration of use times (.pdf, Adobe Acrobat Reader required)

Important points to remember.

1. Fill unit no more than about 1/2 hour prior to leaving home to prevent waste of oxygen from evaporation.
2. Do not attempt to only partially fill unit. For example, do not attempt to fill only to the 1/2 mark. This may adversely effect the operation of the portable unit. Always fill the unit to the "full" mark on the scale.
3. Re-check the scale often to prevent possibility of running out. Be prepared to return home to fill the unit when the scale indicated 1/4 full or less.
4. Unit will not store oxygen for extended periods of time during non-use (due to evaporation). This waste of oxygen can be minimized by keeping the unit out of direct sunlight and in a cool environment. When returning home, you should use the rest of the oxygen in the portable unit.
5. When used in the "Pulse" mode, the battery must be charged at least two hours prior to use. Overnight charge is recommended.

If you have any questions or experience problems with this equipment, please call Sparrow Regional Medical Supply at (517) 364-2115 or 1-877-205-3500