Cylinder filling medical oxygen concentrator
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United States of America Patent
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Sep 10, 2002
Grant Date -
N/A
app pub date -
Feb 7, 2000
filing date -
Feb 11, 1999
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Apparatus for use with a medical oxygen concentrator for supplying oxygen enriched air to a patient and to a cylinder filler. The apparatus includes a flow control valve which is controlled by a control circuit to deliver doses of oxygen enriched air to a patient during at least a portion of the patient's inhalation and to deliver oxygen enriched air to a circuit for filling a portable oxygen cylinder during the remainder of the time. In the event of a failure of the control circuit, the flow control valve delivers a continuous flow of oxygen enriched air to the patient. In the event of a failure of the oxygen concentrator, oxygen enriched air stored in the oxygen cylinder may be delivered to the patient.
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