Method and systems for the delivery of oxygen enriched gas
AssigneeInova Labs, Inc.
InventorDragan Nebrigac
Life of this patent
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Abstract
Described herein are various embodiments of an oxygen concentrator system and method of delivering oxygen enriched gas to a user. In some embodiments, oxygen concentrator system includes one or more components that improve the efficiency of oxygen enriched gas delivery during operation of the oxygen concentrator system. In some embodiments, time measurements based on the penultimate breath taken by the user are used to alter the oxygen delivery parameters.
Claims28
A method for controlling release of oxygen enriched gas to a user of an oxygen concentrator that has a sleep mode and an active mode, comprising:
- measuring the time between a plurality of successive breaths, wherein a breath is determined to begin when a drop in pressure is measured using a pressure sensor coupled to an outlet of a conduit coupling the user to an oxygen enriched gas source;
- determining an average time between each of the successive breaths, wherein the time between the penultimate breath and the last breath is not used to determine the average time;
- setting an inspiration breath pressure threshold for the pressure sensed by the pressure sensor based on the determined average time, including:
- setting the inspiration breath pressure threshold to an active mode breath pressure threshold in response to a determination that the average time is less than a predefined time, and
- setting the inspiration breath pressure threshold to a sleep mode breath pressure threshold in response to a determination that the average time is greater than the predefined time, wherein the sleep mode breath pressure threshold is lower than the active mode breath pressure threshold;
- measuring the time since the penultimate breath and the time since the last breath in the sleep mode and determining a sum of the time since the penultimate breath plus the time since the last breath;
- and
- automatically controlling release of oxygen enriched gas to the user in response to an evaluation that determines whether the sum is greater than a function of the determined average time.
A method for controlling release of oxygen enriched gas to a user of an oxygen concentrator, comprising:
- measuring the time between a plurality of successive breaths;
- measuring the time since a penultimate breath was taken and the time since a last breath, wherein a breath is determined to begin when a drop in pressure is measured using a pressure sensor coupled to an outlet of a conduit coupling the user to an oxygen enriched gas source;
- determining an average time between each of the successive breaths, wherein the time between the penultimate breath and the last breath is not used to determine the average time;
- determining a sum of the time since the penultimate breath plus the time since the last breath;
- and
- automatically controlling release of oxygen enriched gas to the user in response to an evaluation that determines whether the sum is greater than a function of the determined average time.
An oxygen concentrator apparatus, comprising:
- a pressure sensor configured to detect a breath pressure of a user, the pressure sensor coupled to an outlet of a conduit for coupling the user to an oxygen enriched gas source;
- and
- a processor coupled to the pressure sensor and configured to:
- measure the time between a plurality of successive breaths;
- measure the time since a penultimate breath was taken and the time since a last breath, wherein a breath is determined to begin when a drop in pressure is measured using the pressure sensor;
- determine an average time between each of the successive breaths, wherein the time between the penultimate breath and the last breath is not used to determine the average time;
- determine a sum of the time since the penultimate breath plus the time since the last breath;
- and
- automatically control release of oxygen enriched gas to the user in response to an evaluation that determines whether the sum is greater than a function of the determined average time.
Dependencies are inferred from the claim text.