Rev. D 2018-11
22
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Newborn children receiving highly concentrated (more than 40%) oxygen
treatments for longer periods of time can suffer from lesions to the eyelenses
that can cause blindness (retrolenticular fibroplasia).
•
Apart from that there is danger that bleedings (pulmonial hemorrhage), cellular
and/or functional disorders of the lungs (focal atelectasis as well as hyalin
membrane lesions with diffuse pulmonary fibrosis) occur.
•
In order to prevent such a collapse of the lung functions (bronchopulmonial
dysplasia), it is imperative to check the oxygen pressure in the arterial (oxygen-
rich) blood repeatedly.
1.2. Functional Characteristics
The basic principle of oxygen extraction with the help of oxygen concentrators is the
pressure change method following 3 steps:
•
1st Step:
Surrounding air is sucked in by a compressor and is compressed in a
container with a molecular sieve
•
2nd Step:
nitrogen molecules are bound at the surface of the molecular sieve
and are separated from the oxygen molecules in this way. The oxygen
molecules pass the molecular sieve.
•
3rd Step:
The molecular sieve airs by expelling the nitrogen contained with the
help of a part of the extracted oxygen.
By this 3-column method alternately (cyclically) a column is always filled, in the next one
the nitrogen is separated from oxygen and in the third one the molecular sieve is aired. By
this method a continuous oxygen flow is provided without an additional oxygen source.
In this way an extremely rapid development of oxygen concentration is attained, right
after switching on the device.
1.3. Important Use and Safety Instructions
Precondition for the correct use of the oxygen concentrator
Précise 6000
is detailed
knowlegde and adherance of instructions given in this manual. The apparatus must only
be opened by authorized service technicians.
•
The
Précise 6000
and all equipment sup-plied that have contact with oxygen
are to be kept free of grease and oil. Use only original parts.
•
Do not put the
Précise 6000
in wet and humid places.
Summary of Contents for Precise 6000
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