# US 10,869,986 B2 · Gas concentrator with removable cartridge absorbent beds > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,869,986 B2 - Document ID: US10869986B2 - Status: Granted - Kind: B2 - Application number: 16/017,934 - Filed: 2018-06-25 - Published: 2018-12-27 - Granted: 2020-12-22 - Earliest claimed: 2013-12-27 - Assignees: Inogen, Inc. - Applicants: Inogen, Inc. - Inventors: Brenton Alan Taylor; Peter Hansen; John Russell Stump; Patrick Fitzlindon Burgess; Daniel Wayne Chin - Web page: https://patentgrep.com/patent/US10869986B2 ## CPC - A61M 16/101: {using an oxygen concentrator} - A61M 16/10: Preparation of respiratory gases or vapours - B01D 53/0438: {Cooling or heating systems} - B01D 53/047: Pressure swing adsorption - B01D 53/0476: {Vacuum pressure swing adsorption} - A61M 16/107: {in the inspiratory path} - A61M 16/16: Devices to humidify the respiration air {(A61M16/1045 takes precedence)} - A61M 2202/0208: Oxygen - A61M 2205/42: Reducing noise - A61M 2205/502: User interfaces, e.g. screens or keyboards - A61M 2205/8206: battery-operated - B01D 53/053: with storage or buffer vessel - B01D 2253/108: Zeolites - B01D 2256/12: Oxygen - B01D 2257/102: Nitrogen - B01D 2258/06: Polluted air - B01D 2259/402: using two beds - B01D 2259/4533: for medical purposes - B01D 2259/4541: for portable use, e.g. gas masks - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract A portable oxygen concentrator designed for medical use where the adsorbent beds, are designed to be replaced by a patient. The concentrator is designed so that the power supply and adsorbent bed mount is one module and the compressor and air filter are part of another module configured to provide a unitary cooling and air supply system. Replacement beds may be installed easily by patients, and all gas seals will function properly after installation. ## Claims ### Claim 1 A portable oxygen concentrator platform, comprising: one of a PSA, VPSA or VSA core section capable of mating with user replaceable adsorber beds comprising: a housing, a controller, a user interface, at least two user replaceable adsorber beds, at least one compressor, control valve, and air filter, comprising a PSA/VPSA/VSA oxygen system when mated with the user replaceable adsorber beds, a patient delivery apparatus, an airblower, a power supply module comprising at least one power supply and bed retention elements for the user replaceable adsorber beds wherein the power supply and the bed retention elements are mounted together onto a first structure, and a compressor module, mounted above the power supply module, comprising the compressor and a compressor mount, along with the airblower mounted together onto a second structure; wherein the compressor mount comprises a sliding rail mounted load dispersing element configured to disperse the compressor loading over multiple orientations and comprising cooling ducts configured to direct air from the airblower through the compressor module onto the power supply module; and wherein the portable oxygen concentrator weighs less than 25 pounds, produces less than 50 dba acoustic noise when operating, and has an output gas flow of 5 lpm or less. ### Claim 2 (depends on 1) The concentrator of claim 1, comprising an input to receive an output from an external rechargeable battery capable of running the concentrator for greater than 2 hours. ### Claim 3 (depends on 2) The concentrator of claim 2, wherein the power supply is an internal AC-DC power supply, and wherein the concentrator may be switched between operating from the internal AC-DC power supply and the external battery. ### Claim 4 (depends on 1) The concentrator of claim 1, further comprising a compressor inlet filter mounted to an exterior of the concentrator. ### Claim 5 (depends on 4) The concentrator of claim 4, wherein an inlet and an outlet of the compressor inlet filter are connected to an interior of the concentrator. ### Claim 6 (depends on 4) The concentrator of claim 4, wherein the compressor inlet filter forms an ornamental surface of the exterior. ### Claim 7 (depends on 4) The concentrator of claim 4, wherein the compressor inlet filter forms a portion of a humidifier mount. ### Claim 8 (depends on 1) The concentrator of claim 1, wherein the compressor module comprises silencing elements comprising an exhaust muffler and a compressor intake silencer disposed between the compressor and an externally mounted air filter, configured to prevent noise being communicated to an exterior of the concentrator. ### Claim 9 (depends on 8) The concentrator of claim 8, wherein the exhaust muffler is disposed to route exhaust gas into the compressor module to prevent nitrogen rich exhaust gas from being recycled into the compressor intake. ### Claim 10 (depends on 1) The concentrator of claim 1, wherein the power supply module mates to a removable lower housing component comprising at least one of rubber vibration and noise isolating feet or wheels. ### Claim 11 (depends on 8) The concentrator of claim 8, wherein the intake silencer and the exhaust muffler are a common structure. ### Claim 12 (depends on 10) The concentrator of claim 10, wherein the lower housing component can be removed to access the replaceable adsorber beds. ### Claim 13 (depends on 1) The concentrator of claim 1, further comprising a diagnostics interface. ### Claim 14 (depends on 13) The concentrator of claim 13, wherein the diagnostics interface is externally accessible. ### Claim 15 (depends on 14) The concentrator of claim 14, wherein the diagnostics interface mates to an external readout when the concentrator is serviced.