Abstract: This disclosure relates to a control system for a portable oxygen concentrator (POC). Specifically, this disclosure relates to a method and a system configured for use with an oxygen delivery system that includes nasal fitting which does not include nostril prongs. Because the nasal fitting does not include nostril prongs, user comfort is dramatically increased relative to prior designs. That said, because the fitting is free of nostril prongs, changes in pressure associated with the user's breathing register less than in oxygen delivery systems with traditional fittings (i.e., those that include nostril prongs). As such, the method and system of this disclosure is configured to associate relatively small changes in pressure with a breathing cycle of a user, thereby permitting effective and efficient POC operation.

Abstract: This disclosure relates to a control system for a portable oxygen concentrator (POC). Specifically, this disclosure relates to a method and a system configured for use with an oxygen delivery system that includes nasal fitting which does not include nostril prongs. Because the nasal fitting does not include nostril prongs, user comfort is dramatically increased relative to prior designs. That said, because the fitting is free of nostril prongs, changes in pressure associated with the user's breathing register less than in oxygen delivery systems with traditional fittings (i.e., those that include nostril prongs). As such, the method and system of this disclosure is configured to associate relatively small changes in pressure with a breathing cycle of a user, thereby permitting effective and efficient POC operation.

Abstract: A removable gas separation cartridge includes a housing having an inlet port, an outlet port, and a bed of adsorbent material. The cartridge is removable from an oxygen concentrator which separates oxygen from ambient air by using an absorption process.

Abstract: A removable gas separation cartridge includes a housing having an inlet port, an outlet port, and a bed of adsorbent material. The cartridge is removable from an oxygen concentrator which separates oxygen from ambient air by using an absorption process.

Abstract: This disclosure relates to a control system for a portable oxygen concentrator (POC). Specifically, this disclosure relates to a method and a system configured for use with an oxygen delivery system that includes nasal fitting which does not include nostril prongs. Because the nasal fitting does not include nostril prongs, user comfort is dramatically increased relative to prior designs. That said, because the fitting is free of nostril prongs, changes in pressure associated with the user's breathing register less than in oxygen delivery systems with traditional fittings (i.e., those that include nostril prongs). As such, the method and system of this disclosure is configured to associate relatively small changes in pressure with a breathing cycle of a user, thereby permitting effective and efficient POC operation.

Abstract: A removable gas separation cartridge includes a housing having an inlet port, an outlet port, and a bed of adsorbent material. The cartridge is removable from an oxygen concentrator which separates oxygen from ambient air by using an absorption process.

Abstract: A removable gas separation cartridge includes a housing having an inlet port, an outlet port, and a bed of adsorbent material. The cartridge is removable from an oxygen concentrator which separates oxygen from ambient air by using an absorption process.

Abstract: A removable gas separation cartridge includes a housing having an inlet port, an outlet port, and a bed of adsorbent material. The cartridge is removable from an oxygen concentrator which separates oxygen from ambient air by using an absorption process.

Abstract: Disclosed is a method of providing oxygen rich gas. Oxygen is separated from ambient air with an oxygen separator in discrete pulses, one pulse at a time. The start of the pulse is synchronized with the beginning of an inhalation of a person. The oxygen rich gas in each pulse is separated from the ambient air in real time during a nitrogen adsorption step concurrent with each inhalation.

Abstract: A removable gas separation cartridge includes a housing having an inlet port, an outlet port, and a bed of adsorbent material. The cartridge is removable from an oxygen concentrator which separates oxygen from ambient air by using an absorption process.

Abstract: A gaseous fluid pump includes a compression chamber, a plurality of pistons, a plurality of electric coils, and a magnet. The chamber contains at least one inlet and one outlet and a plurality of open volumes created by an inner surface of the compression chamber. The plurality of pistons are within the compression chamber and each piston containing a body with at least a first diametrically polarized magnet centered in the body such that the first magnet attracts or repels depending on the relative position of the first magnet. The plurality of electric coils wound around laminations on an outside of the compression chamber with each of the plurality of electric coils configured to create flux paths centered around each of the pistons when provided electricity to act as a polarizing motor stator. A second magnet is centered within the compression chamber between two of the plurality of pistons.

Abstract: A method of controlling a fluid pump. The pump has a plurality of oscillating pistons that travel along a central axis of a piston sleeve. A plurality of pistons is of similar mass within a piston sleeve are provided, and adjacent pistons are positioned to be 180 degrees apart in phase oscillations. An electric coil is provided for each piston, and the position of adjacent pistons is determined. The current to one of the electric coils for a piston is adjusted to maintain the 180 degree difference in phase between oscillations of adjacent pistons.

Abstract: A removable gas separation cartridge includes a housing having an inlet port, an outlet port, and a bed of adsorbent material. The cartridge is removable from an oxygen concentrator which separates oxygen from ambient air by using an absorption process.

Abstract: Disclosed is a method of providing oxygen rich gas. Oxygen is separated from ambient air with an oxygen separator in discrete pulses, one pulse at a time. The start of the pulse is synchronized with the beginning of an inhalation of a person. The oxygen rich gas in each pulse is separated from the ambient air in real time during a nitrogen adsorption step concurrent with each inhalation.

Abstract: Disclosed is a method of providing oxygen rich gas. Oxygen is separated from ambient air with an oxygen separator in discrete pulses, one pulse at a time. The start of the pulse is synchronized with the beginning of an inhalation of a person. The oxygen rich gas in each pulse is separated from the ambient air in real time during a nitrogen adsorption step concurrent with each inhalation.

Abstract: An apparatus for separation of gases from ambient air that has at least one separation column with an inlet at a first end and an outlet at a second end, a buffer column having a single inlet at a first end, a vacuum pump, and a valve system that connects the vacuum pump to the outlet at the first end of the separation column, and that connects the outlet at the second end of separation column to the single inlet at the first end of the buffer column.

Abstract: An apparatus for separation of gases from ambient air that has at least one separation column with an inlet at a first end and an outlet at a second end, a buffer column having a single inlet at a first end, a vacuum pump, and a valve system that connects the vacuum pump to the outlet at the first end of the separation column, and that connects the outlet at the second end of separation column to the single inlet at the first end of the buffer column.

Abstract: An apparatus for separation of gases from ambient air that has at least one separation column with an inlet at a first end and an outlet at a second end, a buffer column having a single inlet at a first end, a vacuum pump, and a valve system that connects the vacuum pump to the outlet at the first end of the separation column, and that connects the outlet at the second end of separation column to the single inlet at the first end of the buffer column.

Abstract: An oxygen concentrator comprises an oxygen reservoir and adsorbent columns that each have an inlet, an outlet, and a bed of adsorbent material. The concentrator also comprises an air inlet, an exhaust outlet, and a vacuum pump for pumping nitrogen rich gas from one of the column inlets to the exhaust outlet. A product control pump pumps oxygen rich gas from one of the column outlets to the oxygen reservoir. A control valve controls flow in and out of the columns by selectively connecting the air inlet to one column inlet, connecting the vacuum pump to another column inlet, and connecting the product control pump to a column outlet. A motor drives the vacuum pump and control valve to produce vacuum swing adsorption (VSA) cycles in which oxygen-rich product gas is separated and accumulated in the reservoir.

Abstract: An oxygen concentrator provides ambulatory oxygen utilizing a vacuum swing adsorption (VSA) oxygen separator powered by a power pack. The separator has a plurality of nitrogen-selective adsorbent beds, each operating in VSA cycles including feed, evacuation and repressurization phases. The concentrator also contains a delivery system for receiving oxygen produced by the VSA separator.