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GB1368870A - Measurement of carbon dioxide in a gas which is to be inhaled - Google Patents

Measurement of carbon dioxide in a gas which is to be inhaled

Info

Publication number
GB1368870A
GB1368870A GB4408672A GB4408672A GB1368870A GB 1368870 A GB1368870 A GB 1368870A GB 4408672 A GB4408672 A GB 4408672A GB 4408672 A GB4408672 A GB 4408672A GB 1368870 A GB1368870 A GB 1368870A
Authority
GB
United Kingdom
Prior art keywords
cell
sept
exchange resin
inhaled
measurement
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
GB4408672A
Inventor
P E Moyat
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of GB1368870A publication Critical patent/GB1368870A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/104—Preparation of respiratory gases or vapours specially adapted for anaesthetics
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/0087—Environmental safety or protection means, e.g. preventing explosion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/22—Carbon dioxide-absorbing devices ; Other means for removing carbon dioxide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M2016/102—Measuring a parameter of the content of the delivered gas
    • A61M2016/1035—Measuring a parameter of the content of the delivered gas the anaesthetic agent concentration

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Anesthesiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Emergency Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pulmonology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

1368870 Electro-chemical analysis DRAGERWERK A G 22 Sept 1972 [24 Sept 1971] 44086/72 Addition to 1314877 Heading G1N The invention relates to a cell for determining the concentration of CO 2 in a closed circuit anaesthetising systems by measuring the conductivity of deionised water connected to the system by a gas permeable membrane. Instead of regenerating the cell from a reservoir of deionised water, as in the Parent Specification 1314877, the cell contains granules of a de-salting ion-exchange resin - preferably an anion/cation mixed bed exchanger. The granules are retained at the back of the cell by a nylon fabric screen. If the ion-exchange resin is conductive it may form one electrode.
GB4408672A 1971-09-24 1972-09-22 Measurement of carbon dioxide in a gas which is to be inhaled Expired GB1368870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2147718A DE2147718C3 (en) 1971-09-24 1971-09-24 Carbon dioxide warning device

Publications (1)

Publication Number Publication Date
GB1368870A true GB1368870A (en) 1974-10-02

Family

ID=5820462

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4408672A Expired GB1368870A (en) 1971-09-24 1972-09-22 Measurement of carbon dioxide in a gas which is to be inhaled

Country Status (6)

Country Link
JP (1) JPS4841591A (en)
DE (1) DE2147718C3 (en)
FR (1) FR2155293A6 (en)
GB (1) GB1368870A (en)
NL (1) NL7212706A (en)
SE (1) SE376083B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992738A (en) * 1988-05-04 1991-02-12 Dragerwerk Aktiengesellschaft Device for the measuring of gas, vapor or aerosol fractions of a measured gas
GB2306658A (en) * 1995-10-31 1997-05-07 Christopher Arthur Sta Gillard Device for measuring gas concentration electrically
EP1024357A2 (en) * 1999-01-29 2000-08-02 The BOC Group plc Detection means
US7622304B2 (en) 1998-07-17 2009-11-24 Alertis Medical As Carbon dioxide sensor and method of determining partial pressure of carbon dioxide
US7826880B2 (en) 2004-07-16 2010-11-02 Alertis Medical As Electrochemical sensor for in-vivo or ex-vivio measurements of the carbon dioxide partial pressure of living tissue
DE102011108133A1 (en) 2011-07-20 2013-01-24 Kurt-Schwabe-Institut für Mess- und Sensortechnik e.V. Meinsberg Device for extraction of dissolved components from e.g. organic liquid for e.g. bioprocess engineering filed, has carrier gas inlet tube ending in lower part of gas extraction vessel at small distance above measuring liquid by vessel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2636431B1 (en) * 1988-05-04 1992-08-07 Draegerwerk Ag DEVICE FOR MEASURING GASEOUS COMPONENTS, IN THE STATE OF VAPOR OR IN THE AEROSOL STATE OF A GAS TO BE MEASURED

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992738A (en) * 1988-05-04 1991-02-12 Dragerwerk Aktiengesellschaft Device for the measuring of gas, vapor or aerosol fractions of a measured gas
GB2306658A (en) * 1995-10-31 1997-05-07 Christopher Arthur Sta Gillard Device for measuring gas concentration electrically
US7622304B2 (en) 1998-07-17 2009-11-24 Alertis Medical As Carbon dioxide sensor and method of determining partial pressure of carbon dioxide
EP1099115B1 (en) * 1998-07-17 2012-04-25 Alertis Medical AS Co2 sensor
EP1024357A2 (en) * 1999-01-29 2000-08-02 The BOC Group plc Detection means
EP1024357A3 (en) * 1999-01-29 2002-12-11 The BOC Group plc Detection means
US7826880B2 (en) 2004-07-16 2010-11-02 Alertis Medical As Electrochemical sensor for in-vivo or ex-vivio measurements of the carbon dioxide partial pressure of living tissue
DE102011108133A1 (en) 2011-07-20 2013-01-24 Kurt-Schwabe-Institut für Mess- und Sensortechnik e.V. Meinsberg Device for extraction of dissolved components from e.g. organic liquid for e.g. bioprocess engineering filed, has carrier gas inlet tube ending in lower part of gas extraction vessel at small distance above measuring liquid by vessel

Also Published As

Publication number Publication date
DE2147718A1 (en) 1973-04-12
JPS4841591A (en) 1973-06-18
FR2155293A6 (en) 1973-05-18
DE2147718C3 (en) 1978-11-02
NL7212706A (en) 1973-03-27
DE2147718B2 (en) 1978-02-16
SE376083B (en) 1975-05-05

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee