AU2001279527A1 - Miniaturized wearable oxygen concentrator - Google Patents

Miniaturized wearable oxygen concentrator

Info

Publication number
AU2001279527A1
AU2001279527A1 AU2001279527A AU7952701A AU2001279527A1 AU 2001279527 A1 AU2001279527 A1 AU 2001279527A1 AU 2001279527 A AU2001279527 A AU 2001279527A AU 7952701 A AU7952701 A AU 7952701A AU 2001279527 A1 AU2001279527 A1 AU 2001279527A1
Authority
AU
Australia
Prior art keywords
container
gas
oxygen concentrator
air
wearable oxygen
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001279527A
Other languages
English (en)
Inventor
John Lee Warren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wearair Oxygen Inc
Original Assignee
Wearair Oxygen Inc
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
Application filed by Wearair Oxygen Inc filed Critical Wearair Oxygen Inc
Publication of AU2001279527A1 publication Critical patent/AU2001279527A1/en
Abandoned legal-status Critical Current

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
    • 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
    • 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
    • B01D2257/00Components to be removed
    • B01D2257/10Single element gases other than halogens
    • B01D2257/102Nitrogen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/40Further details for adsorption processes and devices
    • B01D2259/40003Methods relating to valve switching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/40Further details for adsorption processes and devices
    • B01D2259/40007Controlling pressure or temperature swing adsorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/40Further details for adsorption processes and devices
    • B01D2259/40007Controlling pressure or temperature swing adsorption
    • B01D2259/40009Controlling pressure or temperature swing adsorption using sensors or gas analysers
    • 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
    • B01D2259/40013Pressurization
    • B01D2259/40015Pressurization with two sub-steps
    • 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
    • B01D2259/40028Depressurization
    • B01D2259/4003Depressurization with two sub-steps
    • 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
    • B01D2259/40062Four
    • 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
    • B01D53/0446Means for feeding or distributing gases
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Emergency Medicine (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Analytical Chemistry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
AU2001279527A 2000-08-02 2001-08-02 Miniaturized wearable oxygen concentrator Abandoned AU2001279527A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US22259100P 2000-08-02 2000-08-02
US60222591 2000-08-02
PCT/CA2001/001120 WO2002009848A2 (en) 2000-08-02 2001-08-02 Miniaturized wearable oxygen concentrator

Publications (1)

Publication Number Publication Date
AU2001279527A1 true AU2001279527A1 (en) 2002-02-13

Family

ID=22832848

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001279527A Abandoned AU2001279527A1 (en) 2000-08-02 2001-08-02 Miniaturized wearable oxygen concentrator

Country Status (12)

Country Link
US (1) US6547851B2 (de)
EP (1) EP1307277B9 (de)
JP (2) JP2004504927A (de)
CN (1) CN1221303C (de)
AT (1) ATE311239T1 (de)
AU (1) AU2001279527A1 (de)
CA (1) CA2354795C (de)
DE (1) DE60115458T2 (de)
ES (1) ES2254458T3 (de)
HK (1) HK1060860A1 (de)
IL (2) IL154244A0 (de)
WO (1) WO2002009848A2 (de)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7032589B2 (en) * 2002-01-23 2006-04-25 The Johns Hopkins University Portable ventilator
US6755895B2 (en) * 2002-04-09 2004-06-29 H2Gen Innovations, Inc. Method and apparatus for pressure swing adsorption
US7637989B2 (en) * 2003-12-31 2009-12-29 Merits Health Products Co., Ltd. Rapid cycle pressure swing adsorption oxygen concentration method and mechanical valve for the same
US7273051B2 (en) * 2004-01-22 2007-09-25 Air Products And Chemicals, Inc. Dual mode medical oxygen concentrator
US7279029B2 (en) * 2004-05-21 2007-10-09 Air Products And Chemicals, Inc. Weight-optimized portable oxygen concentrator
US8016925B2 (en) 2004-10-12 2011-09-13 Mccombs Norman R Mini-portable oxygen concentrator
US7954490B2 (en) * 2005-02-09 2011-06-07 Vbox, Incorporated Method of providing ambulatory oxygen
US7329304B2 (en) * 2005-04-05 2008-02-12 Respironics Oxytec, Inc. Portable oxygen concentrator
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
WO2007000050A1 (en) * 2005-06-27 2007-01-04 Wearair Oxygen Inc. A process and apparatus for generating and delivering an enriched gas fraction
US7771511B2 (en) * 2006-08-28 2010-08-10 Ric Investments, Llc Oxygen concentration system and method
FR2906160B1 (fr) 2006-09-25 2009-06-05 Air Liquide Procede psa a lit d'adsorption composite forme d'un adsorbant et d'agglomerats de mcp
CN103657334B (zh) * 2007-04-20 2016-03-09 英瓦卡尔公司 产品气体浓缩器及其相关方法
US20090065007A1 (en) 2007-09-06 2009-03-12 Wilkinson William R Oxygen concentrator apparatus and method
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
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
US20090211443A1 (en) * 2008-02-21 2009-08-27 Youngblood James H Self-serviceable filter for an oxygen generating device
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
DE102008011827A1 (de) * 2008-02-29 2009-09-10 Fresenius Medical Care Deutschland Gmbh Verfahren zur Ansteuerung von Ventilen zur Flusswegsteuerung und Maschinen, insbesondere medizinische Behandlungsmaschinen
US20090229460A1 (en) * 2008-03-13 2009-09-17 Mcclain Michael S System for generating an oxygen-enriched gas
EP2456541A4 (de) 2009-07-22 2013-03-06 Vbox Inc Verfahren zur sauerstoffabtrennung und -verteilung
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
CN102151351B (zh) * 2011-03-09 2017-02-08 广州军区广州总医院 适用于麻醉机或呼吸机的便携式氧源供给装置
EP2694188B1 (de) 2011-04-08 2017-06-21 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Mischung aus einem adsorbens und speicherstoff mit angepasster dichte
WO2014059409A1 (en) 2012-10-12 2014-04-17 Inova Labs, Inc. Oxygen concentrator systems and methods
AU2013328915B2 (en) 2012-10-12 2018-04-26 Inova Labs, Inc. Dual oxygen concentrator systems and methods
EP2906278B1 (de) 2012-10-12 2019-01-30 Inova Labs, Inc. Systeme zur freisetzung von sauerstoffangereichertem gases
WO2014118684A1 (en) 2013-01-30 2014-08-07 Koninklijke Philips N.V. Oxygen separation system and method of generating a flow of oxygen enriched gas
US9440179B2 (en) 2014-02-14 2016-09-13 InovaLabs, LLC Oxygen concentrator pump systems and methods
EP2997991A1 (de) * 2014-09-19 2016-03-23 Koninklijke Philips N.V. Vorrichtung zur Bereitstellung von zusätzlichem Sauerstoff für eine Person
US11247015B2 (en) 2015-03-24 2022-02-15 Ventec Life Systems, Inc. Ventilator with integrated oxygen production
US10315002B2 (en) 2015-03-24 2019-06-11 Ventec Life Systems, Inc. Ventilator with integrated oxygen production
GB201507549D0 (en) * 2015-04-29 2015-06-17 Smiths Medical Int Ltd Ventilator apparatus and systems
CN107810018A (zh) * 2015-06-29 2018-03-16 诺瓦朗公司 用于气体交换设备的携带设备
WO2017192660A1 (en) 2016-05-03 2017-11-09 Inova Labs, Inc. Method and systems for the delivery of oxygen enriched gas
US10773049B2 (en) 2016-06-21 2020-09-15 Ventec Life Systems, Inc. Cough-assist systems with humidifier bypass
JP6556676B2 (ja) * 2016-08-30 2019-08-07 Ckd株式会社 空圧バルブ、及びそれを備えた濃縮器
JP6466008B1 (ja) * 2018-03-22 2019-02-06 レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード 吸着塔の切替装置
CN112105409A (zh) * 2018-04-20 2020-12-18 澳大利亚勒尔姆科技私人有限公司 向使用者提供浓缩氧气的系统和方法
US11191915B2 (en) 2018-05-13 2021-12-07 Ventec Life Systems, Inc. Portable medical ventilator system using portable oxygen concentrators
CN109305659A (zh) * 2018-10-24 2019-02-05 江苏新颖氧科技发展有限公司 高压力分子筛制氧装置及具有升压功能的分子筛制氧模块
CN111689473A (zh) * 2019-04-29 2020-09-22 中船重工(海南)工程有限公司 一种穿戴式制氧衣
CN110127619A (zh) * 2019-05-31 2019-08-16 温州市康之本制氧科技有限公司 矩阵式一体化psa高效制氧系统
CN114288574B (zh) * 2021-12-31 2022-12-23 成都康拓兴业科技有限责任公司 一种可穿戴式制氧机
CN115076071B (zh) * 2022-06-29 2024-05-24 中科美菱低温科技股份有限公司 压缩空气源装置及其应用

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944627A (en) 1958-02-12 1960-07-12 Exxon Research Engineering Co Method and apparatus for fractionating gaseous mixtures by adsorption
US3400713A (en) * 1966-10-12 1968-09-10 James E. Finan Apparatus for intermittently dispensing oxygen or other gas suitable for breathing
US4222750A (en) * 1976-08-16 1980-09-16 Champion Spark Plug Company Oxygen enrichment system for medical use
JPS57106504A (en) * 1980-12-22 1982-07-02 Hitachi Ltd Concentrating method for oxygen
US4516424A (en) * 1982-07-09 1985-05-14 Hudson Oxygen Therapy Sales Company Oxygen concentrator monitor and regulation assembly
US4589888A (en) * 1984-10-05 1986-05-20 Union Carbide Corporation Pressure swing adsorption process
US4685939A (en) 1985-03-19 1987-08-11 Air Products And Chemicals, Inc. Production of oxygen enriched air
US4802899A (en) * 1987-09-21 1989-02-07 Airsep Corporation Pressure swing adsorption apparatus
JP3076912B2 (ja) * 1989-11-08 2000-08-14 株式会社日立製作所 混合ガスの分離方法及び装置
EP0449448B1 (de) * 1990-03-29 1997-01-22 The Boc Group, Inc. Verfahren zur Herstellung eines mit Sauerstoff angereicherten Produktstroms
JPH04290514A (ja) * 1991-03-19 1992-10-15 Tokico Ltd 気体分離装置
US5340381A (en) * 1993-05-17 1994-08-23 Vorih Marc L Operating system for dual-sieve oxygen concentrators
US5540758A (en) * 1994-02-03 1996-07-30 Air Products And Chemicals, Inc. VSA adsorption process with feed/vacuum advance and provide purge
JPH0857241A (ja) * 1994-08-19 1996-03-05 Tokico Ltd 気体分離装置及び気体分離方法
JP2593810B2 (ja) * 1994-11-04 1997-03-26 日本ルフト株式会社 呼吸用酸素供給装置
US5531807A (en) * 1994-11-30 1996-07-02 Airsep Corporation Apparatus and method for supplying oxygen to passengers on board aircraft
US5529607A (en) * 1995-03-15 1996-06-25 The Boc Group, Inc. PSA process with dynamic purge control
US5850833A (en) 1995-05-22 1998-12-22 Kotliar; Igor K. Apparatus for hypoxic training and therapy
JPH09141038A (ja) * 1995-11-17 1997-06-03 Tokico Ltd 気体分離装置
FR2751244B1 (fr) * 1996-07-18 1998-09-04 Air Liquide Procede et installation de traitement d'un melange gazeux par adsorption a variation de pression
US5912426A (en) * 1997-01-30 1999-06-15 Praxair Technology, Inc. System for energy recovery in a vacuum pressure swing adsorption apparatus
US5871564A (en) 1997-06-16 1999-02-16 Airsep Corp Pressure swing adsorption apparatus
US6003744A (en) * 1998-04-01 1999-12-21 Culjak; Iolanthe Lumbar oxygen carrier
FR2783723B1 (fr) * 1998-09-25 2000-12-29 Air Liquide Procede de traitement d'un melange gazeux par adsorption a modulation de pression, a debit variable de production
JP2000157824A (ja) * 1998-11-26 2000-06-13 Ikiken:Kk 酸素濃縮器における騒音抑制装置

Also Published As

Publication number Publication date
EP1307277B1 (de) 2005-11-30
IL154244A0 (en) 2003-09-17
EP1307277A2 (de) 2003-05-07
DE60115458T2 (de) 2006-08-17
US6547851B2 (en) 2003-04-15
ATE311239T1 (de) 2005-12-15
ES2254458T3 (es) 2006-06-16
JP2004504927A (ja) 2004-02-19
WO2002009848A2 (en) 2002-02-07
HK1060860A1 (en) 2004-08-27
WO2002009848A3 (en) 2002-03-28
JP2013236941A (ja) 2013-11-28
CA2354795A1 (en) 2002-02-02
CN1221303C (zh) 2005-10-05
CA2354795C (en) 2010-02-02
US20020033095A1 (en) 2002-03-21
IL154244A (en) 2007-05-15
EP1307277B9 (de) 2007-10-17
CN1460032A (zh) 2003-12-03
DE60115458D1 (de) 2006-01-05

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