Patent ID: 11951260
Assignee: WEARAIR VENTURES, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method of assisting breathing in a patient having low blood oxygen saturation, the method comprising:
(a) providing the patient with a portable oxygen concentrator that delivers an enriched oxygen airflow, wherein the portable oxygen concentrator comprises:
(1) a pressure gradient generating system,
(2) at least one nitrogen adsorption media that generates the enriched oxygen airflow when exposed to air and acted on by a sufficient pressure gradient and that is selectively isolated from an ambient environment by at least one air enrichment area separator,
(3) an enriched oxygen airflow outlet that is fluidly connected to a flow line and a patient oxygen delivery interface, and
(4) a programmable controller comprising stored computer readable instructions and a processor for executing such instructions and that in operation determines
(I) a volume of the airflow delivered to the patient,
(II) an oxygen concentration of the airflow, and
(III) whether to deliver enriched oxygen airflow to the patient either via continuous delivery or a pulse delivery, and

(5) one or more sensors configured to detect changes in patient oxygen intake,

(b) delivering an enriched oxygen airflow to the patient for a period of at least 1 month, the delivery of the enriched oxygen airflow comprising
(1) generating a moderately enriched oxygen airflow comprising an oxygen concentration of 33-48%, and
(2) pulse delivering to the patient at least about 300 mL of the moderately enriched oxygen airflow per average inspiration of the patient in at least one pulse delivery mode,

(c) automatically monitoring breathing of the patient through the one or more sensors configured to detect changes in patient oxygen intake,
(d) automatically changing between the at least one pulse delivery mode and a continuous delivery mode wherein the continuous delivery mode comprises the portable oxygen concentrator automatically
(1) generating an intensively enriched oxygen airflow comprising an oxygen concentration of at least about 60% and
(2) continuously delivering between about 640 ml and about 1200 ml of the intensively enriched oxygen airflow per average inspiration to the patient based on a timing of the detection of breathing of the patient through the one or more sensors when the controller determines that one or more aspects of the patient's breathing meets or exceeds one or more pre-programmed thresholds, and

(e) operating the portable oxygen concentrator at up to 3.125 watts per liter per minute.