초록 ▼

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 pat

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.

대표청구항 ▼

1. Apparatus for filling a cylinder with oxygen enriched air from a medical oxygen concentrator and for delivering oxygen enriched air to a patient comprising, in combination, a nasal cannula adapted to deliver a flow of oxygen enriched air from the oxygen concentrator to a patient, a cylinder, a cy

1. Apparatus for filling a cylinder with oxygen enriched air from a medical oxygen concentrator and for delivering oxygen enriched air to a patient comprising, in combination, a nasal cannula adapted to deliver a flow of oxygen enriched air from the oxygen concentrator to a patient, a cylinder, a cylinder filler circuit adapted to fill said cylinder with oxygen enriched air from the oxygen concentrator, a flow control valve having an inlet adapted to receive oxygen enriched air from the oxygen concentrator and having first and second positions, said flow control valve delivering oxygen enriched air from the oxygen concentrator to said nasal cannula when in said first position and delivering oxygen enriched air from the oxygen concentrator to said cylinder filler circuit for filling said cylinder when in said second position, a sensor adapted to detect patient inhalation at said nasal cannula, and a control circuit responsive to the detection of patient inhalation at said nasal cannula for momentarily positioning said flow control valve in said first position to deliver a dose of oxygen enriched air to the patient during such inhalation and then for positioning said flow control valve in said second position for delivering oxygen enriched air to said cylinder filler circuit.