WO2006099863A1 - Verfahren und anordnung zur ermittlung der restkapazität an veratembarer luft für ein sauerstoff erzeugendes, im kreislauf betriebenes atemaschutzgerät - Google Patents
Verfahren und anordnung zur ermittlung der restkapazität an veratembarer luft für ein sauerstoff erzeugendes, im kreislauf betriebenes atemaschutzgerät Download PDFInfo
- Publication number
- WO2006099863A1 WO2006099863A1 PCT/DE2006/000545 DE2006000545W WO2006099863A1 WO 2006099863 A1 WO2006099863 A1 WO 2006099863A1 DE 2006000545 W DE2006000545 W DE 2006000545W WO 2006099863 A1 WO2006099863 A1 WO 2006099863A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- residual capacity
- inhalation
- evaluation
- temperature
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/08—Respiratory apparatus containing chemicals producing oxygen
Definitions
- the invention relates to a method for determining the residual capacity of respirable air for an oxygen-generating, circulatory operated respirator with at least one chemical canister connected to an exhalation bag with integrated blower and an inhalation bag with inhalation hose, and an arrangement for carrying out the method.
- Such a circulatory operated breathing apparatus with a consumption indicator for the still remaining veratembare air volume during the period of use is known for example from DE 44 11 560.
- An exhalation valve is followed by an exhalation bag in which a blower is housed.
- the exhaled air is forced by means of the blower through two parallel chemical canisters.
- the chemical granules contained in the chemical canisters bind some of the carbon dioxide contained in the exhaled air and convert it into oxygen in an exothermic reaction.
- the oxygen-enriched air passes through a particle filter into the inhalation bag and via an inhalation valve to the user.
- the operated as insulating, oxygen-generating respirator can - for example, in operations of fire or mine rescue - on a much longer period than conventional SCBA are used. For example, use times of four hours are conceivable, based on a certain - average - tidal volume, of 3Ol / min. Since the stated time of use is very inaccurate on the basis of an assumed average value of the user's respiratory volume per minute (respiratory minute volume), DE 44 11 560 has already proposed a consumption display coupled to the fan. On the basis of the measured blower parameters, the still existing supply of usable respiratory gas is determined with the aid of an evaluation unit.
- the consumption display determined in the known devices with the aid of the blower parameters is inaccurate, since the consumption of the chemical or the respiratory gas requirement or the respiratory volume per minute differs, on the one hand, from the different users and, on the other hand, significantly from the burden on the user means the conditions of use or respiration, and the temperature determines the volume actually breathed.
- the consumption display determined on the basis of the blower parameters must be recalibrated during the repair after each use. The repair can not be done immediately, but only at a temperature below 30 0 C of the blower.
- the invention is therefore based on the object, a method and an arrangement for determining the remaining capacity act on respirable air for a circulating, oxygen-generating respirator so that during use under the prevailing conditions exact, individual values on the ever - At the same time still available breathing air will be displayed.
- the essence of the invention consists in determining the pressure profile and the temperature of the inhaled air during
- Respiratory protective device and can be immediately prepared for subsequent use without calibration and regardless of the temperature and then used.
- the duration of a time interval is preferably twenty seconds. If not ventilated or extremely light respiration, a fixed value of 201 / min is used for the calculation.
- the arrangement according to the invention for carrying out the method comprises a sensor unit integrated in the inhalation hose of the respiratory protective device with a pressure sensor for determining the pressure profile and a temperature sensor for measuring the temperature of the inhaled air which is strongly influenced by the exothermic reaction in the chemical canisters.
- the sensor unit Via a distributor unit, the sensor unit is connected to an evaluation and display unit. In the evaluation and display unit is determined with the determined number of breaths and their respective pressure level of the respective temperature A- temvolumen for the respective time interval.
- This value is subtracted in the evaluation and display unit of the starting capacity or remaining after the previous time interval residual capacity.
- the evaluation and display unit displays the respectively determined residual capacity on a display.
- the evaluation and display unit is a dead man's warning and also a fault indicator, which relates to the power source, electrical connections, the blower or the starter, and a signal generator for generating a signal when certain residual capacities are installed.
- the respiratory protective device comprises two parallel disposed chemical canisters 1, which are connected via an air distributor 2 to an exhalation bag 3 with housed in this blower 4. In the wall of the exhalation bag 3, an excess valve 5 is integrated.
- exhalation hose 6 is connected with exhalation valve 7.
- the chemical canisters 1 are provided with a cooling jacket 8 and filled with a potassium peroxide granules (KO 2 ) 21.
- a connecting tube 9 connects the exits of the two chemical canisters 1 via a particle filter 10 with an inhalation bag 11.
- In the inhalation bag 11 opens a inhalation tube 12 with inhalation valve 13.
- the exhalation valve 7 and the inhalation valve 13 are connected to a valve control (not shown).
- the carbon dioxide-enriched exhaled air flows via the opened exhalation valve 7 (with the inhalation valve 13 closed) into the exhalation bag 3 and is pressed by means of the blower 4 via the air distributor 2 through the chemical cans 1 filled with KO 2 granules 21.
- carbon dioxide contained in the exhaled air is converted into oxygen in an exothermic reaction with the potassium hyperoxide.
- the treated, enriched with oxygen air passes through the
- the respirator also has an energy source 14 and a distribution unit connected thereto 15.
- a sensor unit 19 and an evaluation and display unit 20 are connected to the distribution unit 15.
- the sensor unit 19, which is associated with the inhalation hose 12, has a pressure sensor and a temperature sensor (not shown in each case).
- the operating time of the oxygen-generating respirator described above is four hours for the size of the two chemical canisters 1 used here, which can deliver a total of at least 7200 liters of respirable air.
- the time of use can be significantly longer or significantly shorter, since it depends to a considerable extent on the particular conditions of use and the physique of the user in question, ie the type of respiration.
- inhalation resistance in the inhalation tube 12 is measured in the form of the pressure curve, and at intervals of 20 seconds in each case, the breathing resistance is measured in the form of the maximum height of the breaths and their number determined.
- the respective residual capacity is calculated as a percentage and thus displayed on the display of the evaluation and display unit 20.
- the user thus receives information about the tidal volume actually consumed by him under the prevailing conditions or about the remaining respirable air volume at the time of use.
- the residual capacity can also be represented on the display in the form of a pictorial representation of a "bottle filling.” If a certain residual capacity is reached or undershot, the evaluation and display unit 20 generates a visual and / or acoustic signal with a signal generator.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Emergency Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Multiple Motors (AREA)
- Mobile Radio Communication Systems (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502006001335T DE502006001335D1 (de) | 2005-03-25 | 2006-03-23 | Verfahren und anordnung zur ermittlung der restkapeugendes, im kreislauf betriebenes atemschutzgerät |
AU2006226722A AU2006226722B2 (en) | 2005-03-25 | 2006-03-23 | Method and arrangement for determination of the residual capacity of breathable air for an oxygen-generating breathing apparatus operated in circuit |
EP06722697A EP1861173B1 (de) | 2005-03-25 | 2006-03-23 | Verfahren und anordnung zur ermittlung der restkapazität an veratembarer luft für ein sauerstoff erzeugendes, im kreislauf betriebenes atemschutzgerät |
CN2006800091023A CN101180100B (zh) | 2005-03-25 | 2006-03-23 | 用于测定在电路控制的生氧呼吸器中的可呼吸空气的残气量的方法和装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005015275.9 | 2005-03-25 | ||
DE102005015275A DE102005015275B3 (de) | 2005-03-25 | 2005-03-25 | Verfahren und Anordnung zur Ermittlung der Restkapazität an veratembarer Luft für ein Sauerstoff erzeugendes, im Kreislauf betriebenes Atemschutzgerät |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006099863A1 true WO2006099863A1 (de) | 2006-09-28 |
Family
ID=36676063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2006/000545 WO2006099863A1 (de) | 2005-03-25 | 2006-03-23 | Verfahren und anordnung zur ermittlung der restkapazität an veratembarer luft für ein sauerstoff erzeugendes, im kreislauf betriebenes atemaschutzgerät |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1861173B1 (de) |
CN (1) | CN101180100B (de) |
AT (1) | ATE404253T1 (de) |
AU (1) | AU2006226722B2 (de) |
DE (2) | DE102005015275B3 (de) |
ES (1) | ES2313628T3 (de) |
WO (1) | WO2006099863A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150182711A1 (en) * | 2013-12-31 | 2015-07-02 | General Electric Company | System and method of predicting co2 breakthrough and absorbent replacement |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102114287B (zh) * | 2009-12-31 | 2012-10-03 | 北京谊安医疗系统股份有限公司 | 呼吸机及其氧浓度检测装置和方法 |
JP5873860B2 (ja) * | 2011-02-28 | 2016-03-01 | 興研株式会社 | 空気浄化装置およびそのための破過時間を予測する方法 |
GB2494163A (en) * | 2011-09-01 | 2013-03-06 | Draeger Safety Uk Ltd | Closed circuit breathing apparatus and method of operating the same |
DE102012002546B4 (de) | 2012-02-09 | 2016-11-24 | Dräger Safety AG & Co. KGaA | Beatmungssystem |
DE102014017634B4 (de) * | 2014-11-27 | 2018-02-08 | Dräger Safety AG & Co. KGaA | Kreislaufatemgerät mit einer Messeinrichtung zur Bestimmung von Gasmengen in dem Kreislaufatemgerät |
CN106913965A (zh) * | 2015-12-25 | 2017-07-04 | 金万善 | 一种呼吸器 |
CN110465013B (zh) * | 2019-08-15 | 2020-12-29 | 深圳市荣盛智能装备有限公司 | 空气呼吸器的剩余使用时间的检测方法、装置及存储介质 |
CN113616948A (zh) * | 2020-05-09 | 2021-11-09 | 北京安氧特科技有限公司 | 一种正压弹簧和风机双增压长效正压式化学氧作业呼吸器 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0324259A2 (de) * | 1988-01-11 | 1989-07-19 | William D Budinger | Methode zur Erkennung und Anzeige von kritischen Informationen einer Gaszuführung |
US5157378A (en) * | 1991-08-06 | 1992-10-20 | North-South Corporation | Integrated firefighter safety monitoring and alarm system |
DE4411560C1 (de) | 1994-04-02 | 1995-08-03 | Auergesellschaft Gmbh | Chemikalsauerstoffgerät |
EP1145740A1 (de) * | 2000-04-10 | 2001-10-17 | John E. Lewis | Verfahren und Vorrichtung zur Luftzeitrestbetragsberechnung für selbumfassendes Atmungsgerät |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1474205A (en) * | 1921-10-11 | 1923-11-13 | Mine Safety Appliances Co | Gas mask |
DE2603530A1 (de) * | 1976-01-28 | 1977-08-04 | Auergesellschaft Gmbh | Atemschutzgeraet |
US4350662A (en) * | 1981-01-22 | 1982-09-21 | The United States Of America As Represented By The Secretary Of The Navy | Carbon dioxide absorbent canister with breathing gas temperature and flow control |
GB2384713B (en) * | 2000-10-31 | 2004-10-27 | Deas Alexander Roger | Integral life support system |
CN2553816Y (zh) * | 2002-07-04 | 2003-06-04 | 中国人民解放军第一五三中心医院 | 医用输氧监护仪 |
-
2005
- 2005-03-25 DE DE102005015275A patent/DE102005015275B3/de not_active Expired - Fee Related
-
2006
- 2006-03-23 CN CN2006800091023A patent/CN101180100B/zh not_active Expired - Fee Related
- 2006-03-23 ES ES06722697T patent/ES2313628T3/es active Active
- 2006-03-23 EP EP06722697A patent/EP1861173B1/de active Active
- 2006-03-23 WO PCT/DE2006/000545 patent/WO2006099863A1/de active IP Right Grant
- 2006-03-23 AU AU2006226722A patent/AU2006226722B2/en active Active
- 2006-03-23 DE DE502006001335T patent/DE502006001335D1/de active Active
- 2006-03-23 AT AT06722697T patent/ATE404253T1/de not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0324259A2 (de) * | 1988-01-11 | 1989-07-19 | William D Budinger | Methode zur Erkennung und Anzeige von kritischen Informationen einer Gaszuführung |
US5157378A (en) * | 1991-08-06 | 1992-10-20 | North-South Corporation | Integrated firefighter safety monitoring and alarm system |
DE4411560C1 (de) | 1994-04-02 | 1995-08-03 | Auergesellschaft Gmbh | Chemikalsauerstoffgerät |
US5613488A (en) * | 1994-04-02 | 1997-03-25 | Auergesellschaft Gmbh | Chemical oxygen generator breathing device with the exhalation bag within the inhalation bag |
EP1145740A1 (de) * | 2000-04-10 | 2001-10-17 | John E. Lewis | Verfahren und Vorrichtung zur Luftzeitrestbetragsberechnung für selbumfassendes Atmungsgerät |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150182711A1 (en) * | 2013-12-31 | 2015-07-02 | General Electric Company | System and method of predicting co2 breakthrough and absorbent replacement |
US9504797B2 (en) * | 2013-12-31 | 2016-11-29 | General Electric Company | System and method of predicting CO2 breakthrough and absorbent replacement |
Also Published As
Publication number | Publication date |
---|---|
AU2006226722B2 (en) | 2010-10-28 |
CN101180100B (zh) | 2011-05-25 |
AU2006226722A1 (en) | 2006-09-28 |
EP1861173A1 (de) | 2007-12-05 |
DE502006001335D1 (de) | 2008-09-25 |
EP1861173B1 (de) | 2008-08-13 |
ES2313628T3 (es) | 2009-03-01 |
DE102005015275B3 (de) | 2006-09-28 |
ATE404253T1 (de) | 2008-08-15 |
CN101180100A (zh) | 2008-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1861173B1 (de) | Verfahren und anordnung zur ermittlung der restkapazität an veratembarer luft für ein sauerstoff erzeugendes, im kreislauf betriebenes atemschutzgerät | |
DE102005023393B4 (de) | Druckluft-Atemgerät | |
DE69828033T2 (de) | Beatmungsgerät mit einem System für Undichtheits- und Okklusionsdetektion | |
US20020104537A1 (en) | Tracheal pressure ventilation respiratory system | |
DE2711664C2 (de) | ||
DE4234668A1 (de) | Beatmungsgeraet mit kohlendioxid-detektor | |
DE4312510A1 (de) | Anästhesiemaschine | |
JPS58133264A (ja) | 呼吸気の回路を有する呼吸保護装置 | |
US20090173348A1 (en) | Method And Apparatus For Inducing And Controlling Hypoxia | |
US11185650B2 (en) | Self-contained breathing apparatus | |
WO2003055552A1 (de) | Beatmungsvorrichtung | |
EP1237478B1 (de) | Verfahren und vorrichtung zur atemzugsaufgelösten bestimmung des partialdrucks einer gaskomponente in der ausatemluft eines patienten | |
DE10360229B3 (de) | Vorrichtung und Verfahren zur Dosierung von Atemgas | |
DE102016007336B4 (de) | Medizintechnische Vorrichtung und Verfahren zur Alarmorganisation | |
Houck et al. | Effect of helium concentration on experimental upper airway obstruction | |
DE102011018671A1 (de) | Mobiles Beatmungsgerät | |
Davies et al. | The respiratory response to carbon dioxide | |
JPS6350023B2 (de) | ||
DE102014017634B4 (de) | Kreislaufatemgerät mit einer Messeinrichtung zur Bestimmung von Gasmengen in dem Kreislaufatemgerät | |
DE834201C (de) | Verfahren zum Betrieb von Atemgeraeten, insbesondere von Tauchgeraeten | |
DE19912337C1 (de) | Tragbares Atemgerät zum Training unter Sauerstoffmangelbedingungen | |
DE19921917A1 (de) | Verfahren und Vorrichtung zur Veränderung der standardatmosphärischen Zusammensetzung der Atemluft mit Gasen oder Gasgemischen | |
DE69910585T2 (de) | Atem-masken | |
US9694152B2 (en) | Device for supplying gas to a patient | |
DE2543266A1 (de) | Co tief 2 - regelung am patienten unter narkose |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2006722697 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200680009102.3 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006226722 Country of ref document: AU |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: RU |
|
ENP | Entry into the national phase |
Ref document number: 2006226722 Country of ref document: AU Date of ref document: 20060323 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2006226722 Country of ref document: AU |
|
WWP | Wipo information: published in national office |
Ref document number: 2006722697 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2006722697 Country of ref document: EP |