WO2013007516A1 - Überwachung der funktionalität eines konverters eines atemanalysegerätes - Google Patents
Überwachung der funktionalität eines konverters eines atemanalysegerätes Download PDFInfo
- Publication number
- WO2013007516A1 WO2013007516A1 PCT/EP2012/062421 EP2012062421W WO2013007516A1 WO 2013007516 A1 WO2013007516 A1 WO 2013007516A1 EP 2012062421 W EP2012062421 W EP 2012062421W WO 2013007516 A1 WO2013007516 A1 WO 2013007516A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- converter
- gas component
- gas
- concentration
- component
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title description 3
- 230000032683 aging Effects 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000004868 gas analysis Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 65
- 238000011156 evaluation Methods 0.000 claims description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical group O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 7
- 208000006673 asthma Diseases 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical group CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims 1
- 239000003570 air Substances 0.000 description 12
- 238000005259 measurement Methods 0.000 description 11
- 230000000241 respiratory effect Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 239000012491 analyte Substances 0.000 description 2
- 238000003748 differential diagnosis Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 208000006545 Chronic Obstructive Pulmonary Disease Diseases 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 206010063493 Premature ageing Diseases 0.000 description 1
- 208000032038 Premature aging Diseases 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 208000037841 lung tumor Diseases 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000003818 metabolic dysfunction Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 208000008128 pulmonary tuberculosis Diseases 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/082—Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0037—NOx
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/007—Arrangements to check the analyser
- G01N33/0072—Arrangements to check the analyser by generating a test gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
- F01N2550/02—Catalytic activity of catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Definitions
- the measurement of marker gases in human exhaled air represents a promising non-invasive technique for detecting diseases and metabolic dysfunctions. Possible applications here include screening, differential diagnosis as well as therapy optimization. Examples are the NO-detection to monitor the progress of a Asthmathe ⁇ therapy or for the differential diagnosis of COPD, the detection of lung tumors, tuberculosis or pneumonia. From EP 1 384 069 an atomic conversion module is known to which the breathing gas is supplied before it is passed to the actual sensor unit. The tasks of this Atomkonver ⁇ sion module, for example, the dehumidification of the breath to avoid excessive stress on the sensor unit with moisture, and a conversion of certain respiratory components. In the case of asthma use z. B. here oxidized NO to O 2 . This is an example of the converter function in which an analyte gas that is difficult to detect is converted into a different gas to be measured well by the sensor. In other cases, interfering gases are oxidized to gases which can not be detected by the sensor.
- This object is achieved by a device having the features of claim 1.
- a direct measurement of the function of the converter on the target analyte, such as NO is not possible since in accordance with its nature Konzentra ⁇ tion is unknown. Therefore, indirect measurement via coupled gas conversion is used.
- the inventive device for gas analysis of a Gasge ⁇ premix comprises a gas converter for converting a first gas component in a target gas component, a sensor system for detection of the target gas component or other component of the gas mixture after the conversion by the gas converter.
- the gas converter is configured to change the concentra ⁇ on a second gas component, or to effect a conversion to a second target gas component and the sensor system is configured, the concentration of the second gas component, or the second target gas component to determ ⁇ men.
- an evaluation unit is provided configured to determine a value for the aging of the gas converter on the basis of the concentration of the second Gaskompo ⁇ component or the second target gas component.
- a converter the other one, occurring in the respiratory gas is reacted in a characteristic different concentration than in air or gas ent ⁇ removed.
- Examples are water or CO 2 .
- the reaction of this gas is then measured with an additional sensor for this gas mounted behind the converter. The concentration of this gas is measured when it is blown into the device. If the concentration of this second gas (known whose concentration in the exhaled air and from ⁇ sufficiently stable) is changed sufficiently, the con- verter is functional, otherwise an alarm is generated, for example.
- the converter is built appropriately so that the con ⁇ version of the auxiliary gas correlates with the conversion of the target gas is aging.
- the two aging behaviors can be determined in the experiment, so that an evaluation logic can then conclude from the aging of the conversion of the auxiliary gas to the aging of the conversion of this target gas.
- self-monitoring of the respiratory converter is thus advantageously carried out.
- the gas converter is configured to effect storage of the second gas component.
- the second gas component is chemically or physically bound.
- the evaluation device is configured to determine the value for the aging of the gas converter, when after a gas access from the gas mixture, the concentration of the second gas component or the second target gas component ei ⁇ NEN threshold exceeds or falls below.
- the evaluation device is configured to determine the value for the aging of the gas converter based on the slope of the second Gaskompo ⁇ nent or the second target gas component, a threshold.
- FIG. 1 shows measurement curves of sensors of an asthma respiratory analyzer
- FIG. 2 shows the structure of the asthma respiratory analyzer
- Figure 3 shows the structure of a converter.
- the figures show an example of a measuring device 10 for nitrogen oxide measurement in human breath, an asthma sensor.
- the breath is supplied via a converter 11, as well as via a system of valves 15, 16, 17, 19 ensured that either converted breath or purified fresh ⁇ air is supplied to regenerate the sensor baseline of the located in a measuring chamber 18 sensors.
- the exemplary measuring device 10 is constructed asked ⁇ as in Figure 2 shows.
- the converter 11 breathable air can be supplied.
- the converter 11 is connected to a gas-carrying line with a flow meter 12. This is followed by an inlet valve 15.
- the intake valve 15 is followed by a junction of the gas line. At the junction branches the gas-carrying Lei ⁇ tion.
- a pump 13 and subsequently a filter 14 for reference ⁇ air with activated carbon are provided from the node point.
- the first branch enables the supply of purified fresh air for the regeneration of the sensor baseline to the measuring chamber 18 with a sensor system 20.
- an outlet valve 16 is provided as seen from the junction.
- a third branch includes the bone ⁇ tentician seen from a second inlet valve 17, the measuring ⁇ chamber 18 and a second exhaust valve 19th
- the converter 11 has two tasks here. As shown in FIG. 3, it consists of lattices 21 at both ends, between which filter elements 23 are arranged.
- the transducer 22 is designed as a ceramic with potassium permanganate KMnÜ 4 , more precisely as silica gel, which is partially impregnated with KMnÜ 4 .
- FIG. 1 shows the function of the indirect measurement based on the relative humidity.
- the relative humidity downstream of the converter 11 is plotted against time in seconds for five different samples. The relative humidity is measured with a sensor in the measuring chamber 18. At a given moment 30 while new exhaled air is blown with a relatively high Feuch ⁇ tegehalt.
- a first trace 36 shows the course of the relative
- Measurement curve 32 and a third measurement curve 35 show the course of the relative humidity in a lightly aged converter 11.
- the relative humidity rises after the converter 11 after a time of 8-10 seconds after adding the expiration air.
- a fourth and fifth measurement curve 33, 34 show the course of the moisture after the converter 11 in the case of heavily aged converters 11. In these, the moisture rises sharply directly after the addition of the exhaled air. From the delay with which the humidity rises after the converter 11 and / or from the steepness of the rise wins an evaluation, which is not shown in Figure 2, a value for the aging of the converter 11.
- the starting point is ambient air with relatively low humidity. Now when breath is injected through a new converter, there is only a slight increase in gas humidity instead, while the increase increasingly fails at geal ⁇ failed converters. Therefore, it can be concluded from the course of the increase of the gas humidity on the aging state of the converter ⁇ . Also shown in FIG. 1 is the exhalation pressure 31, which characterizes the injection process.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Food Science & Technology (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Biophysics (AREA)
- Urology & Nephrology (AREA)
- Hematology (AREA)
- Physiology (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Pulmonology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES12743396T ES2703783T3 (es) | 2011-07-08 | 2012-06-27 | Monitoreo de la funcionalidad de un convertidor de un aparato de análisis de aliento |
JP2014519488A JP5933712B2 (ja) | 2011-07-08 | 2012-06-27 | 呼気分析装置の変換器の機能性の監視 |
US14/129,258 US9329161B2 (en) | 2011-07-08 | 2012-06-27 | Monitoring of the functionality of a converter of a breath analysis apparatus |
EP12743396.9A EP2729800B1 (de) | 2011-07-08 | 2012-06-27 | Überwachung der funktionalität eines konverters eines atemanalysegerätes |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011078867 | 2011-07-08 | ||
DE102011078867.0 | 2011-07-08 | ||
DE102011080765A DE102011080765A1 (de) | 2011-07-08 | 2011-08-10 | Überwachung der Funktionalität eines Konverters eines Atemanalysegerätes |
DE102011080765.9 | 2011-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013007516A1 true WO2013007516A1 (de) | 2013-01-17 |
Family
ID=47426506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/062421 WO2013007516A1 (de) | 2011-07-08 | 2012-06-27 | Überwachung der funktionalität eines konverters eines atemanalysegerätes |
Country Status (6)
Country | Link |
---|---|
US (1) | US9329161B2 (de) |
EP (1) | EP2729800B1 (de) |
JP (1) | JP5933712B2 (de) |
DE (1) | DE102011080765A1 (de) |
ES (1) | ES2703783T3 (de) |
WO (1) | WO2013007516A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014202172A1 (de) * | 2014-02-06 | 2015-08-20 | Robert Bosch Gmbh | Verfahren und Mobilgerät zum Steuern einer Messeinrichtung sowie Anordnung zum Messen zumindest eines Gasanalyten in einer Ausatemluft |
EP3152557A4 (de) | 2014-06-09 | 2017-12-13 | Biometry Inc. | Kostengünstiger teststreifen und verfahren zur messung von analyten |
US11175268B2 (en) | 2014-06-09 | 2021-11-16 | Biometry Inc. | Mini point of care gas chromatographic test strip and method to measure analytes |
CN109715067B (zh) | 2016-07-19 | 2022-05-17 | 生物统计股份有限公司 | 使用批量可校准测试条测量分析物的方法和系统 |
DE102017207430A1 (de) * | 2017-05-03 | 2018-11-08 | Robert Bosch Gmbh | Vorrichtung zur Vorbehandlung eines zu untersuchenden Gases |
US20180348155A1 (en) * | 2017-06-02 | 2018-12-06 | Ngk Spark Plug Co., Ltd. | Gas detection apparatus |
WO2021253086A1 (en) * | 2020-06-17 | 2021-12-23 | Pemdx Pty Ltd | Breath detection apparatus and method for breath detection |
Citations (3)
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DE4308894A1 (de) * | 1993-03-19 | 1994-09-22 | Siemens Ag | Verfahren zur Überprüfung der Konvertierung eines Katalysators |
EP1384069A2 (de) | 2001-04-30 | 2004-01-28 | Siemens Aktiengesellschaft | Vorrichtung und verfahren zur quantitativen messung von stickoxiden in der ausatemluft und verwendung |
WO2010115694A1 (de) * | 2009-04-08 | 2010-10-14 | Siemens Aktiengesellschaft | Gas-analysegerät mit einer kombination aus gasentfeuchter und gaskonverter |
Family Cites Families (17)
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US4335073A (en) * | 1981-05-04 | 1982-06-15 | Beckman Instruments, Inc. | NOx Conversion efficiency detector |
JPS6445913A (en) | 1987-08-11 | 1989-02-20 | Mitsubishi Motors Corp | Catalyst deterioration diagnosing device for internal combustion engine |
US6207460B1 (en) * | 1999-01-14 | 2001-03-27 | Extraction Systems, Inc. | Detection of base contaminants in gas samples |
JP2000221183A (ja) * | 1999-01-29 | 2000-08-11 | Horiba Ltd | 水質分析計のフロー異常判定方法 |
JP4314737B2 (ja) * | 2000-11-07 | 2009-08-19 | 株式会社島津製作所 | 化学発光式窒素酸化物濃度計 |
JP2003083042A (ja) * | 2001-09-07 | 2003-03-19 | Hitachi Ltd | 内燃機関の診断装置 |
JP3963130B2 (ja) * | 2002-06-27 | 2007-08-22 | トヨタ自動車株式会社 | 触媒劣化判定装置 |
JP3113917U (ja) * | 2005-06-21 | 2005-09-22 | 株式会社島津製作所 | 揮発性有機化合物測定装置 |
JP2009533682A (ja) | 2006-04-14 | 2009-09-17 | セラマテック・インク | 呼気中の窒素酸化物を測定する装置および方法 |
WO2008088780A1 (en) * | 2007-01-12 | 2008-07-24 | University Of Pittsburgh-Of The Commonwealth System Of Higher Education | Detection of nitric oxide by nanostructured sensor |
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2011
- 2011-08-10 DE DE102011080765A patent/DE102011080765A1/de not_active Ceased
-
2012
- 2012-06-27 WO PCT/EP2012/062421 patent/WO2013007516A1/de active Application Filing
- 2012-06-27 JP JP2014519488A patent/JP5933712B2/ja not_active Expired - Fee Related
- 2012-06-27 EP EP12743396.9A patent/EP2729800B1/de active Active
- 2012-06-27 US US14/129,258 patent/US9329161B2/en not_active Expired - Fee Related
- 2012-06-27 ES ES12743396T patent/ES2703783T3/es active Active
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DE4308894A1 (de) * | 1993-03-19 | 1994-09-22 | Siemens Ag | Verfahren zur Überprüfung der Konvertierung eines Katalysators |
EP1384069A2 (de) | 2001-04-30 | 2004-01-28 | Siemens Aktiengesellschaft | Vorrichtung und verfahren zur quantitativen messung von stickoxiden in der ausatemluft und verwendung |
WO2010115694A1 (de) * | 2009-04-08 | 2010-10-14 | Siemens Aktiengesellschaft | Gas-analysegerät mit einer kombination aus gasentfeuchter und gaskonverter |
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Title |
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Also Published As
Publication number | Publication date |
---|---|
JP5933712B2 (ja) | 2016-06-15 |
EP2729800A1 (de) | 2014-05-14 |
DE102011080765A1 (de) | 2013-01-10 |
JP2014521077A (ja) | 2014-08-25 |
EP2729800B1 (de) | 2018-10-03 |
US9329161B2 (en) | 2016-05-03 |
ES2703783T3 (es) | 2019-03-12 |
US20140202232A1 (en) | 2014-07-24 |
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