WO2005035037A3 - Portable gas fractionalization system - Google Patents

Portable gas fractionalization system Download PDF

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Publication number
WO2005035037A3
WO2005035037A3 PCT/US2004/032996 US2004032996W WO2005035037A3 WO 2005035037 A3 WO2005035037 A3 WO 2005035037A3 US 2004032996 W US2004032996 W US 2004032996W WO 2005035037 A3 WO2005035037 A3 WO 2005035037A3
Authority
WO
WIPO (PCT)
Prior art keywords
compartment
air
components
portable gas
lower temperature
Prior art date
Application number
PCT/US2004/032996
Other languages
French (fr)
Other versions
WO2005035037A2 (en
Inventor
Geoffrey Frank Deane
Brenton Alan Taylor
Rex O Bare
Bradley J Sargent
Andrew J Scherer
Andrew J March
Joseph E Merchant
Jeffrey C Smith
Original Assignee
Inogen Inc
Geoffrey Frank Deane
Brenton Alan Taylor
Rex O Bare
Bradley J Sargent
Andrew J Scherer
Andrew J March
Joseph E Merchant
Jeffrey C Smith
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/681,487 external-priority patent/US20050072426A1/en
Priority claimed from US10/681,456 external-priority patent/US7135059B2/en
Priority claimed from US10/680,997 external-priority patent/US7066985B2/en
Priority claimed from US10/680,885 external-priority patent/US20050072423A1/en
Application filed by Inogen Inc, Geoffrey Frank Deane, Brenton Alan Taylor, Rex O Bare, Bradley J Sargent, Andrew J Scherer, Andrew J March, Joseph E Merchant, Jeffrey C Smith filed Critical Inogen Inc
Priority to JP2006534308A priority Critical patent/JP2007508052A/en
Priority to EP04794369A priority patent/EP1677895A2/en
Priority to CA2540599A priority patent/CA2540599C/en
Publication of WO2005035037A2 publication Critical patent/WO2005035037A2/en
Publication of WO2005035037A3 publication Critical patent/WO2005035037A3/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047Pressure swing adsorption
    • B01D53/053Pressure swing adsorption with storage or buffer vessel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/1005Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M16/101Preparation of respiratory gases or vapours with O2 features or with parameter measurement using an oxygen concentrator
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/105Filters
    • A61M16/106Filters in a path
    • A61M16/107Filters in a path in the inspiratory path
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00Special media to be introduced, removed or treated
    • A61M2202/02Gases
    • A61M2202/0208Oxygen
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00Special media to be introduced, removed or treated
    • A61M2202/03Gases in liquid phase, e.g. cryogenic liquids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/82Internal energy supply devices
    • A61M2205/8206Internal energy supply devices battery-operated
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2209/00Ancillary equipment
    • A61M2209/08Supports for equipment
    • A61M2209/084Supporting bases, stands for equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/106Silica or silicates
    • B01D2253/108Zeolites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2256/00Main component in the product gas stream after treatment
    • B01D2256/12Oxygen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/40Further details for adsorption processes and devices
    • B01D2259/40011Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40035Equalization
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/40Further details for adsorption processes and devices
    • B01D2259/40011Methods relating to the process cycle in pressure or temperature swing adsorption
    • B01D2259/40058Number of sequence steps, including sub-steps, per cycle
    • B01D2259/40066Six
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/40Further details for adsorption processes and devices
    • B01D2259/402Further details for adsorption processes and devices using two beds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/45Gas separation or purification devices adapted for specific applications
    • B01D2259/4533Gas separation or purification devices adapted for specific applications for medical purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/45Gas separation or purification devices adapted for specific applications
    • B01D2259/4541Gas separation or purification devices adapted for specific applications for portable use, e.g. gas masks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407Constructional details of adsorbing systems
    • B01D53/0415Beds in cartridges

Abstract

A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing that is divided into two compartments. One compartment is maintained at a lower temperature than the other compartment. The lower temperature compartment is configured for mounting components that can be damaged by heat. The higher temperature compartment is configured for mounting heat generating components. An air stream is directed to flow from an ambient air inlet to an air outlet constantly so that there is always a fresh source of cooling air. The apparatus utilizes a PSA unit to produce an oxygen enriched product. The PSA unit incorporates a novel single ended column design in which all flow paths and valves can be co-located on a single integrated manifold. The apparatus also can be used in conjunction with a satellite conserver and a mobility cart.
PCT/US2004/032996 2003-10-07 2004-10-07 Portable gas fractionalization system WO2005035037A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006534308A JP2007508052A (en) 2003-10-07 2004-10-07 Portable gas separation system
EP04794369A EP1677895A2 (en) 2003-10-07 2004-10-07 Portable gas fractionalization system
CA2540599A CA2540599C (en) 2003-10-07 2004-10-07 Portable gas fractionalization system

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US10/680,885 2003-10-07
US10/681,487 US20050072426A1 (en) 2003-10-07 2003-10-07 Portable gas fractionalization system
US10/681,456 2003-10-07
US10/681,456 US7135059B2 (en) 2003-10-07 2003-10-07 Portable gas fractionalization system
US10/681,487 2003-10-07
US10/680,997 2003-10-07
US10/680,997 US7066985B2 (en) 2003-10-07 2003-10-07 Portable gas fractionalization system
US10/680,885 US20050072423A1 (en) 2003-10-07 2003-10-07 Portable gas fractionalization system

Publications (2)

Publication Number Publication Date
WO2005035037A2 WO2005035037A2 (en) 2005-04-21
WO2005035037A3 true WO2005035037A3 (en) 2005-06-23

Family

ID=34437759

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/032996 WO2005035037A2 (en) 2003-10-07 2004-10-07 Portable gas fractionalization system

Country Status (5)

Country Link
US (4) US7438745B2 (en)
EP (1) EP1677895A2 (en)
JP (1) JP2007508052A (en)
CA (1) CA2540599C (en)
WO (1) WO2005035037A2 (en)

Families Citing this family (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050072423A1 (en) 2003-10-07 2005-04-07 Deane Geoffrey Frank Portable gas fractionalization system
US20050072426A1 (en) * 2003-10-07 2005-04-07 Deane Geoffrey Frank Portable gas fractionalization system
WO2005035037A2 (en) 2003-10-07 2005-04-21 Inogen, Inc. Portable gas fractionalization system
JP4971582B2 (en) * 2004-02-16 2012-07-11 帝人ファーマ株式会社 Oxygen concentrator
US7617826B1 (en) 2004-02-26 2009-11-17 Ameriflo, Inc. Conserver
US8146592B2 (en) * 2004-02-26 2012-04-03 Ameriflo, Inc. Method and apparatus for regulating fluid flow or conserving fluid flow
US7954490B2 (en) 2005-02-09 2011-06-07 Vbox, Incorporated Method of providing ambulatory oxygen
US20060174877A1 (en) * 2005-02-09 2006-08-10 Vbox, Incorporated Portable oxygen concentrator with a docking station
US7402193B2 (en) 2005-04-05 2008-07-22 Respironics Oxytec, Inc. Portable oxygen concentrator
US7368005B2 (en) * 2005-04-05 2008-05-06 Respironics Oxytec, Inc. Portable oxygen concentrator
US7329304B2 (en) * 2005-04-05 2008-02-12 Respironics Oxytec, Inc. Portable oxygen concentrator
EP1907098A4 (en) * 2005-06-27 2011-03-23 Wearair Oxygen Inc A process and apparatus for generating and delivering an enriched gas fraction
CA2616262C (en) * 2005-07-19 2013-07-02 Pacific Consolidated Industries, Llc Mobile nitrogen generation device
US7550031B2 (en) 2005-10-19 2009-06-23 Sunrise Medical Hhg Inc. Cylinder filling oxygen concentrator
EP1776976B8 (en) 2005-10-20 2012-03-14 PARI GmbH Spezialisten für effektive Inhalation Compressor for an inhalation device for an inhalation therapy
US7510601B2 (en) 2005-12-20 2009-03-31 Air Products And Chemicals, Inc. Portable medical oxygen concentrator
WO2007082193A2 (en) * 2006-01-06 2007-07-19 Doreen Cleary Pulmonary rehabilitation providing respiratory assistance by application of positive airway pressure
US7736132B2 (en) * 2006-04-03 2010-06-15 Respironics Oxytec, Inc. Compressors and methods for use
US8753435B2 (en) * 2006-04-03 2014-06-17 Ric Investments, Llc Portable oxygen concentrator
KR20090023667A (en) * 2006-07-03 2009-03-05 산요 덴시 고교 가부시끼가이샤 Oxygen concentrating device
JP5175480B2 (en) * 2007-03-28 2013-04-03 テルモ株式会社 Oxygen concentrator
JP2008272350A (en) * 2007-05-07 2008-11-13 Teijin Pharma Ltd Oxygen concentrator
US20080302516A1 (en) * 2007-06-08 2008-12-11 Sequal Technologies, Inc. Compressor Cooling System and Method of Use
TWI354648B (en) * 2007-06-22 2011-12-21 Quickly assemblable structure of molecular sieves
US20090065007A1 (en) * 2007-09-06 2009-03-12 Wilkinson William R Oxygen concentrator apparatus and method
US8122882B2 (en) * 2007-10-29 2012-02-28 Smiths Medical Asd, Inc. Rainout reduction in a breathing circuit
US20090145428A1 (en) * 2007-12-05 2009-06-11 Sequal Technologies, Inc. System and Method for Controlling Supply of Oxygen Based on Breathing Rate
US20090205494A1 (en) * 2008-02-20 2009-08-20 Mcclain Michael S Single manifold assembly for oxygen-generating systems
US20090205493A1 (en) * 2008-02-20 2009-08-20 Thompson Loren M Method of removing water from an inlet region of an oxygen generating system
US20090211443A1 (en) * 2008-02-21 2009-08-27 Youngblood James H Self-serviceable filter for an oxygen generating device
US7722698B2 (en) * 2008-02-21 2010-05-25 Delphi Technologies, Inc. Method of determining the purity of oxygen present in an oxygen-enriched gas produced from an oxygen delivery system
US8075676B2 (en) 2008-02-22 2011-12-13 Oxus America, Inc. Damping apparatus for scroll compressors for oxygen-generating systems
US20090214393A1 (en) * 2008-02-22 2009-08-27 Chekal Michael P Method of generating an oxygen-enriched gas for a user
US20090229460A1 (en) * 2008-03-13 2009-09-17 Mcclain Michael S System for generating an oxygen-enriched gas
US8349174B2 (en) * 2008-07-23 2013-01-08 Baxter International Inc. Portable power dialysis machine
US9278185B2 (en) * 2008-09-04 2016-03-08 Caire Inc. System and method for controlling bolus pulse duration based on inspiratory time in an oxygen concentation system
US8236095B1 (en) * 2008-10-17 2012-08-07 O2 Concepts, LLC Vacuum-pressure swing absorption concentrator
WO2010115170A2 (en) 2009-04-02 2010-10-07 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation for treating airway obstructions
US8267081B2 (en) 2009-02-20 2012-09-18 Baxter International Inc. Inhaled anesthetic agent therapy and delivery system
EP2456540A4 (en) 2009-07-22 2013-10-09 Vbox Inc Apparatus for separating oxygen from ambient air
CA2774902C (en) 2009-09-03 2017-01-03 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature
US8894751B2 (en) 2009-10-05 2014-11-25 Separation Design Group Llc Ultra rapid cycle portable oxygen concentrator
WO2011060204A2 (en) * 2009-11-11 2011-05-19 The Board Of Trustees Of The Leland Stanford Jr. University Ventilation systems and methods
NZ601654A (en) * 2010-02-09 2014-09-26 Invacare Corp Breathing gas supply system
FR2956593A1 (en) * 2010-02-23 2011-08-26 Air Liquide Air separation installation for use in power plant, has air separation apparatuses comprising main heat exchangers and supplying pipes, where one of apparatuses is arranged on side of common pipe that is common with axis of one of pipes
US8512274B2 (en) * 2010-05-10 2013-08-20 Matt Secovich Device for cooling cutaneous and sub-cutaneous tissues and method of manufacture thereof
US20120055483A1 (en) * 2010-09-07 2012-03-08 Wilkinson William R Shutdown system and method for an oxygen concentrator
US8616207B2 (en) 2010-09-07 2013-12-31 Inova Labs, Inc. Oxygen concentrator heat management system and method
US20120055475A1 (en) 2010-09-07 2012-03-08 Wilkinson William R Oxygen concentrator system and methods for oral delivery of oxygen enriched gas
US11577035B2 (en) 2010-09-22 2023-02-14 Robert Irving Pratt, JR. Therapeutic vaporizer
JP5920940B2 (en) 2010-09-22 2016-05-18 クローヴァーシールド, インコーポレイテッドClovershield, Inc. Therapeutic vaporizer
US20140158129A1 (en) 2010-09-22 2014-06-12 Clovershield, Inc. Transversely-activated valve for a therapeutic vaporizer bag attachment system
US8440004B2 (en) * 2010-12-30 2013-05-14 Inogen, Inc. Advanced portable oxygen concentrator
JP2012179319A (en) * 2011-03-03 2012-09-20 Air Water Inc Oxygen concentrating device
US8500879B2 (en) 2011-03-14 2013-08-06 Metran Co., Ltd. Oxygen concentrator
US10695520B2 (en) 2011-04-22 2020-06-30 Inogen, Inc. Gas concentrator with removable cartridge adsorbent beds
US9592360B2 (en) 2011-04-22 2017-03-14 Inogen, Inc. Gas concentrator with removable cartridge adsorbent beds
RU2657935C2 (en) 2011-06-03 2018-06-18 Фишер Энд Пейкел Хелткэа Лимитед Medical tubes and methods for their manufacture
JP6438301B2 (en) * 2011-09-13 2018-12-12 コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. Oxygen concentrator supply line overpressure protection
WO2013038319A1 (en) * 2011-09-13 2013-03-21 Koninklijke Philips Electronics N.V. Proportional oxygen conserving device with flow sensing cross-reference to related applications
US9321001B2 (en) 2011-09-13 2016-04-26 Koninklijke Philips N.V. Portable oxygen concentrator with integrated manifold
US9649459B2 (en) * 2011-09-26 2017-05-16 Resmed Paris Sas Ventilator apparatus and method
US8668344B2 (en) 2011-11-30 2014-03-11 Izi Medical Products Marker sphere including edged opening to aid in molding
US8661573B2 (en) 2012-02-29 2014-03-04 Izi Medical Products Protective cover for medical device having adhesive mechanism
DE202012101959U1 (en) 2012-05-29 2012-07-30 Fu-Lai Han Device for generating oxygen and for regulating the air supply in a car
CN103626132B (en) * 2012-08-22 2016-04-20 张碧波 A kind of Portable Oxygen generator being applicable to highlands
EP2906280B1 (en) 2012-10-12 2018-09-26 Inova Labs, Inc. Oxygen concentrator systems and methods
JP6321663B2 (en) 2012-10-12 2018-05-09 イノヴァ ラボ,インコーポレイテッド Methods and systems for oxygen-enriched gas delivery
EP2906281B1 (en) 2012-10-12 2018-09-05 Inova Labs, Inc. Dual oxygen concentrator systems and methods
CN107361960B (en) * 2012-11-14 2020-11-06 费雪派克医疗保健有限公司 Zone heating for breathing circuits
JP6162961B2 (en) * 2013-01-18 2017-07-12 フクダ電子株式会社 Flow control unit and oxygen concentrator provided with the same
US9011301B2 (en) * 2013-01-28 2015-04-21 Balandis Taft Patents, Llc Multi function exercise apparatus with resistance mechanism
US9873078B2 (en) 2013-02-15 2018-01-23 Koninklijke Philips N.V Oxygen separator and method of generating oxygen
US9435339B2 (en) 2013-03-13 2016-09-06 Agilent Technologies, Inc. Vibration/noise management in a scroll compressor
US9611852B2 (en) 2013-03-29 2017-04-04 Agilent Technology, Inc. Thermal/noise management in a scroll pump
US10208753B2 (en) 2013-03-29 2019-02-19 Agilent Technologies, Inc. Thermal/noise management in a scroll pump
US9132378B2 (en) * 2013-11-14 2015-09-15 Li-Tek Electronics Technology Co., Ltd. Portable oxygen generator
US10004869B2 (en) 2013-12-27 2018-06-26 Inogen, Inc. Gas concentrator with removable cartridge adsorbent beds
US9440179B2 (en) 2014-02-14 2016-09-13 InovaLabs, LLC Oxygen concentrator pump systems and methods
US20150238721A1 (en) * 2014-02-24 2015-08-27 Vetland Medical Sales and Services, LLC Electronic E-Cylinder
US9283346B2 (en) * 2014-07-26 2016-03-15 Inogen, Inc. Personal use oxygen concentrator with integrated fire safety
US9616798B2 (en) * 2015-01-28 2017-04-11 Fuelie Systems, Inc. Portable fuel storage device
CN104645469A (en) * 2015-02-04 2015-05-27 丁本增 Noninvasive breathing apparatus
US11247015B2 (en) 2015-03-24 2022-02-15 Ventec Life Systems, Inc. Ventilator with integrated oxygen production
US10245406B2 (en) 2015-03-24 2019-04-02 Ventec Life Systems, Inc. Ventilator with integrated oxygen production
US10273005B2 (en) 2016-04-11 2019-04-30 Carleton Life Support Systems, Inc. Sieve bed retention system
US11458274B2 (en) 2016-05-03 2022-10-04 Inova Labs, Inc. Method and systems for the delivery of oxygen enriched gas
CN105858613A (en) * 2016-05-05 2016-08-17 珠海辉钰医疗科技有限公司 Low-pressure draught fan oxygen generating system
CN105858615B (en) * 2016-05-05 2018-06-29 珠海辉钰医疗科技有限公司 A kind of bridge-type low pressure blower oxygen generation system
US10773049B2 (en) 2016-06-21 2020-09-15 Ventec Life Systems, Inc. Cough-assist systems with humidifier bypass
EP3544662A4 (en) 2016-12-22 2020-07-29 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
JP2018134249A (en) * 2017-02-22 2018-08-30 日本特殊陶業株式会社 Oxygen concentrator
CA3064851C (en) 2017-06-06 2022-01-18 Separation Design Group, Llc Configurable oxygen concentrator and related method
US11840444B2 (en) 2018-03-16 2023-12-12 Fuelie Systems, Inc. Fuel storage and dispensing device
CA3100163A1 (en) 2018-05-13 2019-11-21 Samir Saleh AHMAD Portable medical ventilator system using portable oxygen concentrators
USD889394S1 (en) 2018-05-31 2020-07-07 Separation Design Group, Llc Battery
US10760700B2 (en) * 2018-10-03 2020-09-01 Larry Boggs Oxygen flow remote-control assembly
US10946161B2 (en) * 2018-12-05 2021-03-16 Aires Medical LLC Pulsed pressure swing adsorption system and method
US20200306683A1 (en) * 2019-04-01 2020-10-01 Inogen, Inc. Compact portable oxygen concentrator
US11642486B2 (en) 2019-05-17 2023-05-09 Breathe Technologies, Inc. Portable oxygen concentrator retrofit system and method
US11607519B2 (en) 2019-05-22 2023-03-21 Breathe Technologies, Inc. O2 concentrator with sieve bed bypass and control method thereof
CN110127619A (en) * 2019-05-31 2019-08-16 温州市康之本制氧科技有限公司 The efficient oxygen generation system of matrix form integration PSA
FR3098122B1 (en) * 2019-07-05 2021-06-04 Air Liquide Medical Systems Internal chamber medical ventilator including a motorized micro-blower and gas circuits
WO2021056065A1 (en) * 2019-09-24 2021-04-01 ResMed Asia Pte Ltd Methods and apparatus for control of an oxygen concentrator
EP4182054A1 (en) 2020-07-16 2023-05-24 Invacare Corporation System and method for concentrating gas
CN116648278A (en) 2020-07-16 2023-08-25 英瓦卡尔公司 System and method for concentrating gas
US20220016563A1 (en) * 2020-07-16 2022-01-20 Invacare Corporation System and method for concentrating gas
US11420007B2 (en) 2020-08-05 2022-08-23 Effortless Oxygen, Llc Flow triggered gas delivery
US11247008B1 (en) 2020-08-05 2022-02-15 Effortless Oxygen, Llc Flow triggered gas delivery
US11318276B2 (en) 2020-08-05 2022-05-03 Effortless Oxygen, Llc Flow triggered gas delivery
US20220168165A1 (en) * 2020-11-30 2022-06-02 Heather Farrell Wheeled Apparatus For Transporting A Portable Oxygen Concentrator Or Other Medical Device
CN114432827B (en) * 2022-03-07 2024-02-02 中国船舶重工集团公司第七一九研究所 Guiding device for steam separation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030005928A1 (en) * 2000-08-03 2003-01-09 Sequal Technologies, Inc. Portable oxygen concentration system and method of using the same
US6551384B1 (en) * 2001-07-05 2003-04-22 Praxair Technology, Inc. Medical oxygen concentrator
US20040149133A1 (en) * 2002-01-31 2004-08-05 Mccombs Norman R. Portable oxygen concentrator

Family Cites Families (156)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20366A (en) * 1858-05-25 Improvement in seeding-machines
US2195565A (en) * 1934-06-13 1940-04-02 Bullard Co Air purifier
US2798718A (en) * 1951-10-26 1957-07-09 William E Gross Canister spring
US2728407A (en) 1952-04-09 1955-12-27 Specialties Dev Corp Dehydrating apparatus
US2944627A (en) * 1958-02-12 1960-07-12 Exxon Research Engineering Co Method and apparatus for fractionating gaseous mixtures by adsorption
US3258899A (en) * 1962-02-06 1966-07-05 Puregas Equipment Corp Apparatus for fractionating gaseous mixtures
US3323292A (en) * 1964-12-01 1967-06-06 Dielectric Products Engineerin Apparatus for fractionating gaseous mixtures
US3406501A (en) 1967-07-06 1968-10-22 David R. Watkins Automobile engine exhaust filter
US3703068A (en) 1971-03-26 1972-11-21 Union Carbide Corp Control system for selective adsorption process
US3730158A (en) * 1971-07-28 1973-05-01 Gen Motors Corp Canister for evaporation loss control
US3880616A (en) * 1973-11-19 1975-04-29 Bendix Corp Respiratory support system
US3922149A (en) 1974-01-30 1975-11-25 Garrett Corp Oxygen air enrichment method
US3976050A (en) 1974-11-18 1976-08-24 Nuclear Associates, Inc. Device for adsorbing exhaled radioactive gases and process
JPS5299973A (en) * 1976-02-18 1977-08-22 Toray Ind Inc Adsorption and separation apparatus of mixed gas
US4054133A (en) 1976-03-29 1977-10-18 The Bendix Corporation Control for a demand cannula
US4222750A (en) 1976-08-16 1980-09-16 Champion Spark Plug Company Oxygen enrichment system for medical use
US4077779A (en) * 1976-10-15 1978-03-07 Air Products And Chemicals, Inc. Hydrogen purification by selective adsorption
US4144945A (en) * 1977-12-02 1979-03-20 Hamilton Bros. Mfg. Co. Motorized garden plow or cultivator
US4496376A (en) * 1978-01-26 1985-01-29 Litton Systems, Inc. Variable area molecular sieve container having a thermal control system
US4146277A (en) * 1978-06-29 1979-03-27 Santoro Dario S Desiccant cap
US4247311A (en) * 1978-10-26 1981-01-27 Pall Corporation Downflow or upflow adsorbent fractionator flow control system
US4342573A (en) 1979-10-12 1982-08-03 Greene & Kellogg, Incorporated Compact oxygen concentrator
US4371384A (en) * 1979-10-12 1983-02-01 Green & Kellogg, Inc. Bed vessels for a compact oxygen concentrator
US4302224A (en) 1979-10-12 1981-11-24 Greene & Kellogg, Inc. Compact oxygen concentrator
US4303419A (en) 1979-12-28 1981-12-01 University Of Iowa Research Foundation Method and composition for determination of N-nitrosamines
DE3029080A1 (en) * 1980-07-31 1982-02-18 Linde Ag, 6200 Wiesbaden METHOD AND DEVICE FOR PROVIDING BREATH GAS
US4381002A (en) * 1980-12-18 1983-04-26 The United States Of America As Represented By The Secretary Of The Army Fluidic-controlled oxygen intermittent demand flow device
US4378982A (en) * 1981-08-28 1983-04-05 Greene & Kellogg, Inc. Compact oxygen concentrator
US4373938A (en) * 1981-09-11 1983-02-15 Greene & Kellogg, Incorporated Modular industrial oxygen concentrator
US4516424A (en) * 1982-07-09 1985-05-14 Hudson Oxygen Therapy Sales Company Oxygen concentrator monitor and regulation assembly
US4502873A (en) * 1982-07-27 1985-03-05 Proto-Med, Inc. Method and apparatus for concentrating oxygen
US4449990A (en) * 1982-09-10 1984-05-22 Invacare Respiratory Corp. Method and apparatus for fractioning oxygen
US4506666A (en) * 1982-12-03 1985-03-26 Kircaldie, Randall And Mcnab Method and apparatus for rectifying obstructive apnea
US4482361A (en) 1983-01-14 1984-11-13 Union Carbide Corporation Pressure swing adsorption process
US4534346A (en) 1983-03-15 1985-08-13 Guild Associates, Inc. Pressure swing cycle for the separation of oxygen from air
US4491459A (en) * 1983-05-04 1985-01-01 Pinkerton Charles J Portable oxygen enrichment and concentration system
US4509959A (en) * 1983-07-28 1985-04-09 Greene & Kellogg, Inc. Modular industrial oxygen concentrator
US4545790A (en) 1983-08-11 1985-10-08 Bio-Care, Incorporated Oxygen concentrator
US4511377A (en) * 1983-11-01 1985-04-16 Greene & Kellogg, Inc. Apparatus for the production of oxygen
US4584996A (en) * 1984-03-12 1986-04-29 Blum Alvin S Apparatus for conservative supplemental oxygen therapy
JPS61131756A (en) * 1984-11-30 1986-06-19 鳥取大学長 Respiration tuning air sending type concentrated oxygen supply apparatus
US4744803A (en) * 1985-08-19 1988-05-17 The Ohio State University Research Foundation Complementary pressure swing adsorption
US4770678A (en) 1985-08-20 1988-09-13 Haslett Jr John A Contaminant removal from fluids
US4832014A (en) * 1985-10-02 1989-05-23 Perkins Warren E Method and means for dispensing two respirating gases by effecting a known displacement
JPS6294175A (en) 1985-10-18 1987-04-30 鳥取大学長 Respiration synchronous type gas blowing apparatus and method
US4802299A (en) * 1985-12-05 1989-02-07 Fuji Kogyo Co., Ltd. Reel mounting device on fishing rods
US4706664A (en) 1986-04-11 1987-11-17 Puritan-Bennett Corporation Inspiration oxygen saver
US4698075A (en) 1986-06-05 1987-10-06 International Oxygen Company, Inc. Control system for fluid absorption systems and the like
GB8623605D0 (en) 1986-10-01 1986-11-05 Normalair Garrett Ltd Aircraft on-board gas generating apparatus
US4802899A (en) 1987-09-21 1989-02-07 Airsep Corporation Pressure swing adsorption apparatus
US4826510A (en) * 1988-01-13 1989-05-02 The John Bunn Company Portable low profile DC oxygen concentrator
US4895808A (en) * 1988-07-26 1990-01-23 Romer Labs, Inc. Method and apparatus for adsorption detection
US5002591A (en) * 1988-10-14 1991-03-26 Vbm Corporation High efficiency PSA gas concentrator
US4925464A (en) * 1988-11-17 1990-05-15 Ryder International Corporation Fluid flow switching valve assembly and system
US4877429A (en) 1989-03-06 1989-10-31 Hunter Donald W Valve device for P.S.A. or R.P.S.A. systems
US4892566A (en) * 1989-03-22 1990-01-09 Airsep Corporation Pressure swing adsorption process and system
GB8907447D0 (en) * 1989-04-03 1989-05-17 Normalair Garrett Ltd Molecular sieve-type gas separation systems
US5144945A (en) 1989-04-20 1992-09-08 Nippon Sanso Kabushiki Kaisha Portable oxygen-enriching air inhaler
US5275642A (en) * 1989-05-17 1994-01-04 Stuart Bassine Molecular sieve for oxygen concentrator
US5071453A (en) 1989-09-28 1991-12-10 Litton Systems, Inc. Oxygen concentrator with pressure booster and oxygen concentration monitoring
US5032150A (en) * 1989-11-03 1991-07-16 The Ohio State University Pressure swing adsorption
US5268021A (en) 1989-11-20 1993-12-07 Dynotec Corporation Fluid fractionator
US5112367A (en) * 1989-11-20 1992-05-12 Hill Charles C Fluid fractionator
US5154737A (en) 1990-01-12 1992-10-13 Vbm Corporation System for eliminating air leakage and high purity oxygen of a PSA oxygen concentrator
US4971609A (en) 1990-02-05 1990-11-20 Pawlos Robert A Portable oxygen concentrator
US5114441A (en) * 1990-11-02 1992-05-19 Ryder International Corporation Oxygen concentrator system and valve structure
US5226933A (en) * 1992-03-31 1993-07-13 Ohio State University Pressure swing adsorption system to purify oxygen
CA2109017A1 (en) 1992-12-16 1994-06-17 Donald M. Smith Method and apparatus for the intermittent delivery of oxygen therapy to a person
US5438980A (en) * 1993-01-12 1995-08-08 Puritan-Bennett Corporation Inhalation/exhalation respiratory phase detection circuit
US5427609A (en) * 1993-09-14 1995-06-27 Horton Industries, Inc. Device for cleaning and drying compressed gas
US5839434A (en) 1993-11-16 1998-11-24 Invacare Corporation Method and apparatus for dispensing respiratory gases
US5549736A (en) 1994-01-19 1996-08-27 Litton Systems, Inc. Modular, stackable pressure swing absorption concentrator
US5466134A (en) 1994-04-05 1995-11-14 Puritan Bennett Corporation Scroll compressor having idler cranks and strengthening and heat dissipating ribs
US5759020A (en) * 1994-04-05 1998-06-02 Air Squared, Inc. Scroll compressor having tip seals and idler crank assemblies
US5474595A (en) 1994-04-25 1995-12-12 Airsep Corporation Capacity control system for pressure swing adsorption apparatus and associated method
US5496388A (en) * 1994-07-01 1996-03-05 Air Liquide America Corporation System for compressing air and extracting nitrogen from compressed air
US5665316A (en) 1994-08-31 1997-09-09 Geno2 X Corporation Portable oxygen generator
US5593478A (en) * 1994-09-28 1997-01-14 Sequal Technologies, Inc. Fluid fractionator
US5495848A (en) * 1994-11-25 1996-03-05 Nellcar Puritan Bennett Monitoring system for delivery of therapeutic gas
US5531807A (en) * 1994-11-30 1996-07-02 Airsep Corporation Apparatus and method for supplying oxygen to passengers on board aircraft
US5697364A (en) 1995-06-07 1997-12-16 Salter Labs Intermittent gas-insufflation apparatus
US5626131A (en) * 1995-06-07 1997-05-06 Salter Labs Method for intermittent gas-insufflation
US5735268A (en) * 1995-06-07 1998-04-07 Salter Labs Intermitten gas-insufflation apparatus and method therefor
US5578115A (en) 1995-07-24 1996-11-26 Devilbiss Health Care, Inc. Molecular sieve container for oxygen concentrator
US5603315A (en) * 1995-08-14 1997-02-18 Reliable Engineering Multiple mode oxygen delivery system
US5611845A (en) * 1995-08-22 1997-03-18 Undersea Breathing Systems, Inc. Oxygen enriched air generation system
US5658371A (en) 1995-11-06 1997-08-19 Praxair Technology, Inc. Single bed pressure swing adsorption process for recovery of oxygen from air
GB9524721D0 (en) * 1995-12-02 1996-01-31 Normalair Garrett Ltd Molecular sieve type gas separation apparatus
US5741305A (en) * 1996-05-06 1998-04-21 Physio-Control Corporation Keyed self-latching battery pack for a portable defibrillator
US5755224A (en) * 1996-05-23 1998-05-26 Sunrise Medical Hhg Inc. Cylinder-mounted oxygen management device
US5906672A (en) * 1996-06-14 1999-05-25 Invacare Corporation Closed-loop feedback control for oxygen concentrator
US5917135A (en) * 1996-06-14 1999-06-29 Invacare Corporation Gas concentration sensor and control for oxygen concentrator utilizing gas concentration sensor
US5746806A (en) * 1996-08-15 1998-05-05 Nellcor Puritan Bennett Incorporated Apparatus and method for controlling output of an oxygen concentrator
AUPO247496A0 (en) * 1996-09-23 1996-10-17 Resmed Limited Assisted ventilation to match patient respiratory need
GB2318150B (en) * 1996-10-09 2000-02-16 Brian Walker Adsorption gas dryer two stage silencers with integral bypass
US5752816A (en) * 1996-10-10 1998-05-19 Air Squared,Inc. Scroll fluid displacement apparatus with improved sealing means
US6152134A (en) 1996-10-18 2000-11-28 Invacare Corporation Oxygen conserving device
US5865174A (en) * 1996-10-29 1999-02-02 The Scott Fetzer Company Supplemental oxygen delivery apparatus and method
US5827358A (en) 1996-11-08 1998-10-27 Impact Mst, Incorporation Rapid cycle pressure swing adsorption oxygen concentration method and apparatus
US5890490A (en) * 1996-11-29 1999-04-06 Aylsworth; Alonzo C. Therapeutic gas flow monitoring system
DE29719775U1 (en) 1996-12-11 1998-02-05 Sgi Prozess Technik Gmbh Pressure change system for extracting oxygen from the air
AU734362B2 (en) * 1996-12-31 2001-06-14 Bowie Gordon Keefer High frequency pressure swing adsorption
US5912426A (en) * 1997-01-30 1999-06-15 Praxair Technology, Inc. System for energy recovery in a vacuum pressure swing adsorption apparatus
EP0968043B1 (en) * 1997-01-31 2004-10-13 RIC Investments, Inc. Pressure swing absorption system with multi-chamber canister
US5928189A (en) * 1997-04-22 1999-07-27 Phillips; Robert E. Activity responsive therapeutic delivery system
US5871564A (en) * 1997-06-16 1999-02-16 Airsep Corp Pressure swing adsorption apparatus
US5979440A (en) 1997-06-16 1999-11-09 Sequal Technologies, Inc. Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator
US6532958B1 (en) * 1997-07-25 2003-03-18 Minnesota Innovative Technologies & Instruments Corporation Automated control and conservation of supplemental respiratory oxygen
WO1999004841A1 (en) * 1997-07-25 1999-02-04 Minnesota Innovative Technologies & Instruments Corporation (Miti) Control device for supplying supplemental respiratory oxygen
US6371114B1 (en) * 1998-07-24 2002-04-16 Minnesota Innovative Technologies & Instruments Corporation Control device for supplying supplemental respiratory oxygen
US5881725A (en) * 1997-08-19 1999-03-16 Victor Equipment Company Pneumatic oxygen conserver
US5988165A (en) 1997-10-01 1999-11-23 Invacare Corporation Apparatus and method for forming oxygen-enriched gas and compression thereof for high-pressure mobile storage utilization
US5968236A (en) 1998-02-20 1999-10-19 Bassine; Stuart Valve free oxygen concentrator
US6033457A (en) * 1998-03-23 2000-03-07 Oxynet, Inc. Oxygen generator system and method of operating the same
US6192884B1 (en) * 1998-05-22 2001-02-27 Duke University Method and apparatus for supplemental oxygen delivery
US5997612A (en) 1998-07-24 1999-12-07 The Boc Group, Inc. Pressure swing adsorption process and apparatus
US6220244B1 (en) * 1998-09-15 2001-04-24 Mclaughlin Patrick L. Conserving device for use in oxygen delivery and therapy
WO2000016839A1 (en) 1998-09-23 2000-03-30 The Johns Hopkins University Emergency life support system
US6439864B1 (en) 1999-01-11 2002-08-27 Air Squared, Inc. Two stage scroll vacuum pump with improved pressure ratio and performance
US6129530A (en) 1998-09-28 2000-10-10 Air Squared, Inc. Scroll compressor with a two-piece idler shaft and two piece scroll plates
US6511308B2 (en) * 1998-09-28 2003-01-28 Air Squared, Inc. Scroll vacuum pump with improved performance
AU1210500A (en) 1998-10-21 2000-05-08 Airsep Corporation Combined oxygen regulator and conservation device
US6394088B1 (en) 1998-11-06 2002-05-28 Mark R. Frye Oxygen-delivery system with portable oxygen meter
US6269811B1 (en) 1998-11-13 2001-08-07 Respironics, Inc. Pressure support system with a primary and a secondary gas flow and a method of using same
US6146447A (en) 1998-11-25 2000-11-14 Air Products And Chemicals, Inc. Oxygen generation process and system using single adsorber and single blower
US6050792A (en) * 1999-01-11 2000-04-18 Air-Squared, Inc. Multi-stage scroll compressor
DE60027493T2 (en) * 1999-02-19 2006-12-07 Teijin Ltd. Apparatus for producing oxygen-enriched gas from air
US6178772B1 (en) * 1999-02-26 2001-01-30 Multisorb Technologies, Inc. Receiver and filter and adsorbent unit therefor
US6609582B1 (en) 1999-04-19 2003-08-26 Delphi Technologies, Inc. Power generation system and method
US6346139B1 (en) * 1999-05-12 2002-02-12 Respironics, Inc. Total delivery oxygen concentration system
US6348082B1 (en) * 1999-05-14 2002-02-19 Respironics, Inc. Gas fractionalization system and associated method
US6395065B1 (en) * 1999-05-14 2002-05-28 Respironics, Inc. Air flow control in a gas fractionalization system and associated method
US6299670B1 (en) 1999-06-10 2001-10-09 Saes Pure Gas, Inc. Integrated heated getter purifier system
US6311719B1 (en) 1999-08-10 2001-11-06 Sequal Technologies, Inc. Rotary valve assembly for pressure swing adsorption system
US6514319B2 (en) 1999-12-09 2003-02-04 Questair Technologies Inc. Life support oxygen concentrator
US6558451B2 (en) * 2000-05-10 2003-05-06 Airsep Corporation Multiple bed pressure swing adsorption method and apparatus
US6342090B1 (en) * 2000-05-16 2002-01-29 Litton Systems, Inc. Gas generating system with multi-rate charging feature
FR2809329B1 (en) * 2000-05-25 2002-08-16 Air Liquide PORTABLE OXYGEN CONCENTRATOR
US6478850B2 (en) 2000-08-02 2002-11-12 Wearair Oxygen Inc. Miniaturized wearable oxygen concentrator
US6651658B1 (en) 2000-08-03 2003-11-25 Sequal Technologies, Inc. Portable oxygen concentration system and method of using the same
US6581297B1 (en) * 2000-11-17 2003-06-24 Graham-White Manufacturing Company Drying apparatus and method
JP4631177B2 (en) 2001-01-30 2011-02-16 トヨタ自動車株式会社 Vehicle battery cooling system
US6810877B2 (en) * 2001-08-02 2004-11-02 Medical Electronics Devices Corp. High sensitivity pressure switch
KR100495974B1 (en) * 2002-01-16 2005-06-17 디지털오토모빌(주) Air purification device with oxygen-supplying function, for automobiles
KR100491684B1 (en) 2002-04-12 2005-05-30 주식회사 옥서스 Gas concentrating Method and apparatus for use of Pressure Swing Adsorption
US6866041B2 (en) * 2002-05-14 2005-03-15 Evolution, Inc. Oxygen concentrating aroma mixing breathable air delivery apparatus and method
GB0215649D0 (en) 2002-07-05 2002-08-14 Walker Filtration Ltd Adsorption gas dryer
US6712877B2 (en) * 2002-08-27 2004-03-30 Litton Systems, Inc. Oxygen concentrator system
KR20040034358A (en) * 2002-10-18 2004-04-28 마츠시타 덴끼 산교 가부시키가이샤 Oxygen enrichment apparatus
US6805729B2 (en) 2002-10-29 2004-10-19 H2Gen Innovations, Inc. System and method for handling fluid using a manifold
WO2005035037A2 (en) 2003-10-07 2005-04-21 Inogen, Inc. Portable gas fractionalization system
US20050072426A1 (en) * 2003-10-07 2005-04-07 Deane Geoffrey Frank Portable gas fractionalization system
US20050072423A1 (en) * 2003-10-07 2005-04-07 Deane Geoffrey Frank Portable gas fractionalization system
US7066985B2 (en) 2003-10-07 2006-06-27 Inogen, Inc. Portable gas fractionalization system
US7135059B2 (en) 2003-10-07 2006-11-14 Inogen, Inc. Portable gas fractionalization system
US7329304B2 (en) * 2005-04-05 2008-02-12 Respironics Oxytec, Inc. Portable oxygen concentrator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030005928A1 (en) * 2000-08-03 2003-01-09 Sequal Technologies, Inc. Portable oxygen concentration system and method of using the same
US6551384B1 (en) * 2001-07-05 2003-04-22 Praxair Technology, Inc. Medical oxygen concentrator
US20040149133A1 (en) * 2002-01-31 2004-08-05 Mccombs Norman R. Portable oxygen concentrator

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US20080105258A1 (en) 2008-05-08
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