ES472045A1 - Perfeccionamientos en sensores electroquimicos para la medi-cion simultanea y continua de po2 y pco2 en fluidos - Google Patents

Perfeccionamientos en sensores electroquimicos para la medi-cion simultanea y continua de po2 y pco2 en fluidos

Info

Publication number
ES472045A1
ES472045A1 ES472045A ES472045A ES472045A1 ES 472045 A1 ES472045 A1 ES 472045A1 ES 472045 A ES472045 A ES 472045A ES 472045 A ES472045 A ES 472045A ES 472045 A1 ES472045 A1 ES 472045A1
Authority
ES
Spain
Prior art keywords
pco2
partial pressure
electrochemical sensor
blood
pco2 sensor
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
ES472045A
Other languages
English (en)
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.)
GD Searle LLC
Original Assignee
GD Searle LLC
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 GD Searle LLC filed Critical GD Searle LLC
Publication of ES472045A1 publication Critical patent/ES472045A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/14539—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue for measuring pH
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1491—Heated applicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
    • G01N27/4045—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors for gases other than oxygen
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/4162—Systems investigating the composition of gases, by the influence exerted on ionic conductivity in a liquid

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Optics & Photonics (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

Perfeccionamientos en sensores electroquímicos para la medición simultánea y continua de PO2 y PCO2 en fluidos, caracterizados porque cada sensor se forma por: (a) una cámara electródica que tiene en su interior un primer electrodo sensible a los cambios de pH producidos por la presencia de dióxido de carbono; un segundo electrodo capaz de reducir oxígeno electroquímicamente; un electrodo de referencia para cada uno de los electrodos primero y segundo o bien común a ambos; medios para que el primer electrodo, el segundo electrodo y el electrodo de referencia estén separado, entre sí y aislados; y un electrolito en contacto con el electrodo de referencia y con el primer y el segundo electrodo; y (b) una membrana permeable al oxígeno y dióxido de carbono, dotada de un primer lado y de un segundo lado, estando el primer lado en contacto con el electrolito y el segundo disponible para su exposición a los gases de dióxido de carbono y oxígeno del fluido a ensayar, manteniendo la membrana al electrolito en contacto con los electrodos y proporcionando la entrada de oxígeno y dióxido de carbono gaseosos en el electrólito; siendo también dicha membrana permeable al agua cuando el electróltio alcalino es sólido.
ES472045A 1977-07-26 1978-07-26 Perfeccionamientos en sensores electroquimicos para la medi-cion simultanea y continua de po2 y pco2 en fluidos Expired ES472045A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3127377 1977-07-26

Publications (1)

Publication Number Publication Date
ES472045A1 true ES472045A1 (es) 1979-02-01

Family

ID=10320658

Family Applications (1)

Application Number Title Priority Date Filing Date
ES472045A Expired ES472045A1 (es) 1977-07-26 1978-07-26 Perfeccionamientos en sensores electroquimicos para la medi-cion simultanea y continua de po2 y pco2 en fluidos

Country Status (11)

Country Link
US (1) US4197853A (es)
JP (2) JPS5931328B2 (es)
AU (1) AU517637B2 (es)
BE (1) BE869244A (es)
CA (1) CA1110327A (es)
DE (1) DE2832501A1 (es)
DK (1) DK330278A (es)
ES (1) ES472045A1 (es)
FR (1) FR2399021A1 (es)
GB (1) GB2005418B (es)
IT (1) IT1107552B (es)

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US4615340A (en) * 1985-02-27 1986-10-07 Becton, Dickinson And Company Sensor assembly suitable for blood gas analysis and the like and the method of use
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US4842697A (en) * 1985-04-26 1989-06-27 Hnu Systems, Inc. Method of determining ammonia in a gaseous or liquid sample
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Also Published As

Publication number Publication date
US4197853A (en) 1980-04-15
JPS5424694A (en) 1979-02-24
DK330278A (da) 1979-01-27
BE869244A (fr) 1979-01-25
DE2832501A1 (de) 1979-02-08
GB2005418B (en) 1982-04-21
GB2005418A (en) 1979-04-19
FR2399021A1 (fr) 1979-02-23
CA1110327A (en) 1981-10-06
JPS5931328B2 (ja) 1984-08-01
JPS61122846A (ja) 1986-06-10
IT7850464A0 (it) 1978-07-25
AU3832178A (en) 1980-01-31
IT1107552B (it) 1985-11-25
AU517637B2 (en) 1981-08-13

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990503