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GB2271286A - Method for controlling an air supply unit for respirators - Google Patents

Method for controlling an air supply unit for respirators

Info

Publication number
GB2271286A
GB2271286A GB9320606A GB9320606A GB2271286A GB 2271286 A GB2271286 A GB 2271286A GB 9320606 A GB9320606 A GB 9320606A GB 9320606 A GB9320606 A GB 9320606A GB 2271286 A GB2271286 A GB 2271286A
Authority
GB
United Kingdom
Prior art keywords
air
respirator
supply unit
air supply
controlling
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.)
Granted
Application number
GB9320606A
Other versions
GB9320606D0 (en
GB2271286B (en
Inventor
Thomas Arvidsson
Anders Nilsson
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.)
Sundstroem Safety AB
Original Assignee
Sundstroem Safety AB
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 Sundstroem Safety AB filed Critical Sundstroem Safety AB
Publication of GB9320606D0 publication Critical patent/GB9320606D0/en
Publication of GB2271286A publication Critical patent/GB2271286A/en
Application granted granted Critical
Publication of GB2271286B publication Critical patent/GB2271286B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/006—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort with pumps for forced ventilation
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/02—Respiratory apparatus with compressed oxygen or air
    • A62B7/04—Respiratory apparatus with compressed oxygen or air and lung-controlled oxygen or air valves

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

A method for controlling, in respiration-synchronised manner, a portable air supply unit for a respirator (1) covering at least the nose and/or mouth of the user and having an air inlet (3) and an air outlet (2), is disclosed. The air supply unit comprises an air inlet, an air filter (5), an air outlet communicating with the air inlet (3) of the respirator (1), a fan (6) driven by an electric motor and supplying the respirator (1) with air that has passed through the filter (5), a battery for driving the air supply unit, and an electrically operable valve (7) for controlling the air flow to the respirator (1). The method is characterised by sensing the pressure in the respirator (1); closing the valve at the beginning of each exhalation phase at an upper set limit value (Phi), and opening the valve at the end of each exhalation phase at a lower set limit value (Plo); and so setting the operating voltage of the electric motor that a sufficiently high speed is imparted to the fan (6) to give the user access to a surplus of filtered air during the inhalation phase. <IMAGE>
GB9320606A 1991-04-12 1992-04-10 Method for controlling an air supply unit for respirators Expired - Lifetime GB2271286B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9101097A SE9101097L (en) 1991-04-12 1991-04-12 MOVE TO CONTROL AN AIR SUPPLY UNIT RESPIRATORY SYNCHRONIZED FOR A RESPIRATORY PROTECTOR WHICH AATMINSTONE TAKES THE NURSE AND / OR Mouth
PCT/SE1992/000235 WO1992018201A1 (en) 1991-04-12 1992-04-10 Method for controlling an air supply unit for respirators

Publications (3)

Publication Number Publication Date
GB9320606D0 GB9320606D0 (en) 1994-01-05
GB2271286A true GB2271286A (en) 1994-04-13
GB2271286B GB2271286B (en) 1995-06-07

Family

ID=20382441

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9320606A Expired - Lifetime GB2271286B (en) 1991-04-12 1992-04-10 Method for controlling an air supply unit for respirators

Country Status (5)

Country Link
AU (1) AU650740B2 (en)
DE (1) DE4291092T1 (en)
GB (1) GB2271286B (en)
SE (1) SE9101097L (en)
WO (1) WO1992018201A1 (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1149603A3 (en) 1991-12-20 2003-10-22 Resmed Limited Ventilator for continuous positive airway pressure breathing (CPAP)
US6675797B1 (en) 1993-11-05 2004-01-13 Resmed Limited Determination of patency of the airway
DE69434028T2 (en) 1993-11-05 2005-09-22 Resmed Ltd., North Ryde Control in continuous positive airway pressure treatment
DE69422900T2 (en) 1993-12-01 2000-06-08 Resmed Ltd., North Ryde Continuous positive airway pressure (CPAP) device
US6237593B1 (en) 1993-12-03 2001-05-29 Resmed Limited Estimation of flow and detection of breathing CPAP treatment
AUPN236595A0 (en) 1995-04-11 1995-05-11 Rescare Limited Monitoring of apneic arousals
AUPN394895A0 (en) 1995-07-03 1995-07-27 Rescare Limited Auto-calibration of pressure transducer offset
AU716135B2 (en) * 1995-09-18 2000-02-17 Resmed Limited Pressure control in CPAP treatment or assisted respiration
EP0862474A4 (en) 1995-09-18 2000-05-03 Resmed Ltd Pressure control in cpap treatment or assisted respiration
AUPN616795A0 (en) 1995-10-23 1995-11-16 Rescare Limited Ipap duration in bilevel cpap or assisted respiration treatment
AUPN973596A0 (en) 1996-05-08 1996-05-30 Resmed Limited Control of delivery pressure in cpap treatment or assisted respiration
AUPO163896A0 (en) 1996-08-14 1996-09-05 Resmed Limited Determination of respiratory airflow
AUPO247496A0 (en) 1996-09-23 1996-10-17 Resmed Limited Assisted ventilation to match patient respiratory need
AUPO301796A0 (en) 1996-10-16 1996-11-07 Resmed Limited A vent valve apparatus
AUPO511397A0 (en) 1997-02-14 1997-04-11 Resmed Limited An apparatus for varying the flow area of a conduit
US6336454B1 (en) 1997-05-16 2002-01-08 Resmed Limited Nasal ventilation as a treatment for stroke
AUPO742297A0 (en) 1997-06-18 1997-07-10 Resmed Limited An apparatus for supplying breathable gas
USD421298S (en) 1998-04-23 2000-02-29 Resmed Limited Flow generator
JP4080591B2 (en) 1998-04-24 2008-04-23 株式会社群馬コイケ Respiratory oxygen supply device
AUPQ664400A0 (en) * 2000-04-03 2000-05-04 Safety Equipment Australia Pty Ltd Ventilation system for protective suit
AU2002300021B2 (en) * 2000-04-03 2004-08-12 Safety Equipment Sweden Ab Ventilation system for a protective suit
US6948191B2 (en) 2002-04-12 2005-09-27 3M Innovative Properties Company Personal protective suit with partial flow restriction
US6796304B2 (en) 2002-04-12 2004-09-28 3M Innovative Properties Company Personal containment system with sealed passthrough
CN102892451B (en) 2010-03-25 2017-03-08 瑞思迈巴黎股份有限公司 Breathable gas air inlet control device for respiratory therapy apparatus
US11364395B2 (en) * 2016-08-24 2022-06-21 Koninklijke Philips N.V. Breathing mask with increased user comfort
WO2019020503A1 (en) 2017-07-28 2019-01-31 Koninklijke Philips N.V. A mask and control method
EP3446756A1 (en) * 2017-08-24 2019-02-27 Koninklijke Philips N.V. A mask and control method
WO2019025374A1 (en) * 2017-08-04 2019-02-07 Koninklijke Philips N.V. A breathing cycle monitoring device and control method
CN109045502B (en) * 2018-09-14 2021-04-27 湖南科技大学 Dust breathing apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478216A (en) * 1982-04-06 1984-10-23 H.G.D. Enterprises Ltd. Portable air filtration device
US4590951A (en) * 1983-06-07 1986-05-27 Racal Safety Limited Breathing apparatus
US4640277A (en) * 1984-05-17 1987-02-03 Texas College Of Osteopathic Medicine Self-contained breathing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478216A (en) * 1982-04-06 1984-10-23 H.G.D. Enterprises Ltd. Portable air filtration device
US4590951A (en) * 1983-06-07 1986-05-27 Racal Safety Limited Breathing apparatus
US4640277A (en) * 1984-05-17 1987-02-03 Texas College Of Osteopathic Medicine Self-contained breathing apparatus

Also Published As

Publication number Publication date
DE4291092T1 (en) 1994-02-17
SE467041B (en) 1992-05-18
GB9320606D0 (en) 1994-01-05
SE9101097D0 (en) 1991-04-12
AU650740B2 (en) 1994-06-30
WO1992018201A1 (en) 1992-10-29
AU1552792A (en) 1992-11-17
SE9101097L (en) 1992-05-18
GB2271286B (en) 1995-06-07

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20120409