GB741510A - Improvements in or relating to means for taking an air sample from exhalation air - Google Patents

Improvements in or relating to means for taking an air sample from exhalation air

Info

Publication number
GB741510A
GB741510A GB2130253A GB2130253A GB741510A GB 741510 A GB741510 A GB 741510A GB 2130253 A GB2130253 A GB 2130253A GB 2130253 A GB2130253 A GB 2130253A GB 741510 A GB741510 A GB 741510A
Authority
GB
United Kingdom
Prior art keywords
air
branch
resistance
container
tube
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.)
Expired
Application number
GB2130253A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB741510A publication Critical patent/GB741510A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
    • 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
    • G01N33/4972—Determining alcohol content

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Chemical & Material Sciences (AREA)
  • Hematology (AREA)
  • Pulmonology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Food Science & Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Urology & Nephrology (AREA)
  • Physiology (AREA)
  • Medicinal Chemistry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

<PICT:0741510/III/1> Apparatus for sampling exhalation air comprises a three-way member 2, branch 1 being for connection to the mouth, branch 3 leading to a gas-tight collapsible bag or evacuated container 4, and the third branch 5 leading to a sample container 7 and being provided with a resistance to air flow. The resistance may be an excess pressure valve 6, as shown, or a nozzle or capillary tube. On exhaling into branch 1 the air first fills bag or container 4 and only then flows past the resistance in the sampling tube into the container 7, thus ensuring that only alveolar <\>air is sampled; the sample may be removed at 9 for analysis. A tube containing a reagent which changes colour in the presence of a constituent of exhaled air may be used as the flow resistance, Fig. 2 (not shown); if the volume of air passing through the tube is known, the colour change indicates the concentration of a constituent, for example, alcohol or carbon dioxide.
GB2130253A 1952-08-06 1953-07-31 Improvements in or relating to means for taking an air sample from exhalation air Expired GB741510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED12901A DE1029525B (en) 1952-08-06 1952-08-06 Device for taking sample air from exhaled air

Publications (1)

Publication Number Publication Date
GB741510A true GB741510A (en) 1955-12-07

Family

ID=7034233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2130253A Expired GB741510A (en) 1952-08-06 1953-07-31 Improvements in or relating to means for taking an air sample from exhalation air

Country Status (4)

Country Link
CH (1) CH320119A (en)
DE (1) DE1029525B (en)
GB (1) GB741510A (en)
NL (2) NL90346C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218515A (en) * 1988-04-26 1989-11-15 Quentin Paul Ainsworth Carbon-dioxide detection
GB2435162B (en) * 2004-08-13 2008-06-04 Asthma Alert Ltd Gas sensor
WO2014009324A3 (en) * 2012-07-09 2014-04-10 Roland Stangl Expiration air separation device for collecting a sample of expired air

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1616010C3 (en) * 1968-02-06 1983-02-17 Jaeger, Erich, 8700 Würzburg Expiratory air collection vessel
DE3233462A1 (en) * 1982-09-09 1984-04-12 Drägerwerk AG, 2400 Lübeck MOUTHPIECE FOR A BREATH ALCOHOL MEASURING DEVICE
SE505709C2 (en) * 1992-06-29 1997-09-29 Minco Ab Device for indicating the presence of carbon dioxide in a patient's exhaled air
WO2012045560A2 (en) 2010-10-08 2012-04-12 Aerocrine Ab Apparatus for collecting expiratory air

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2062785A (en) * 1932-06-11 1936-12-01 Rolla N Harger Apparatus for and process of readily determining alcohol concentrations in live animals and solutions
DE722871C (en) * 1940-08-31 1942-07-23 Dr Robert Havemann Method and device for determining gas metabolism
US2591691A (en) * 1946-07-05 1952-04-08 Glenn C Forrester Method for determining breath alcohol content
US2427145A (en) * 1947-03-06 1947-09-09 Frederick W Koehler Apparatus for measuring pulmonary capacity of human beings
DE814021C (en) * 1948-10-02 1951-09-17 Albert Dargatz Fa Apparatus for measuring gas metabolism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218515A (en) * 1988-04-26 1989-11-15 Quentin Paul Ainsworth Carbon-dioxide detection
GB2435162B (en) * 2004-08-13 2008-06-04 Asthma Alert Ltd Gas sensor
WO2014009324A3 (en) * 2012-07-09 2014-04-10 Roland Stangl Expiration air separation device for collecting a sample of expired air

Also Published As

Publication number Publication date
NL179934B (en)
NL90346C (en)
DE1029525B (en) 1958-05-08
CH320119A (en) 1957-03-15

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