FR2425641A1 - Polarographic cell contg. platinum-silicon cathodes - silver reference anode, used partic. medically to measure partial pressure of oxygen - Google Patents

Polarographic cell contg. platinum-silicon cathodes - silver reference anode, used partic. medically to measure partial pressure of oxygen

Info

Publication number
FR2425641A1
FR2425641A1 FR7814179A FR7814179A FR2425641A1 FR 2425641 A1 FR2425641 A1 FR 2425641A1 FR 7814179 A FR7814179 A FR 7814179A FR 7814179 A FR7814179 A FR 7814179A FR 2425641 A1 FR2425641 A1 FR 2425641A1
Authority
FR
France
Prior art keywords
layer
oxygen
cell
cathodes
partic
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.)
Granted
Application number
FR7814179A
Other languages
French (fr)
Other versions
FR2425641B1 (en
Inventor
Michel Croset
Gonzalo Velasco
Noel Nouailles
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7814179A priority Critical patent/FR2425641A1/en
Publication of FR2425641A1 publication Critical patent/FR2425641A1/en
Application granted granted Critical
Publication of FR2425641B1 publication Critical patent/FR2425641B1/fr
Granted 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
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring blood gases
    • 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, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1468—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means
    • 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

Abstract

A polarographic cell for measuring partial pressures of oxygen contains a silicon substrate, a silver reference anode, and a large number of cathodes; these electrodes work in an electrolytic medium of alkaline metal halide, partic. KCl, sepd. from the medium to be analysed by a membrane permeable only to O2. The polarographic cell is mfd. by (a) oxidising a semiconductor substrate of Si to form a layer of SiO2; (b) eliminating this layer through a mask in the places where the cathodes will be formed; (c) depositing on the unit obtd. a layer of metal, partic. Pt, which can form an alloy (Pt-Si) which constitutes the cathode; and (d) eliminating the metal by a chemical which leaves the alloy intact. Subsequent stages involve the successive deposit of a layer of e.g. Zr and a layer of Ag, and elimination of these layers in the cathode area. The cell is used in the medical field to measure the partial pressures of oxygen in the blood and in respiratory: passages. The cell can be used, e.g. in a probe contg. KCl soln., closed by a PTFE membrane.
FR7814179A 1978-05-12 1978-05-12 Polarographic cell contg. platinum-silicon cathodes - silver reference anode, used partic. medically to measure partial pressure of oxygen Granted FR2425641A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7814179A FR2425641A1 (en) 1978-05-12 1978-05-12 Polarographic cell contg. platinum-silicon cathodes - silver reference anode, used partic. medically to measure partial pressure of oxygen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7814179A FR2425641A1 (en) 1978-05-12 1978-05-12 Polarographic cell contg. platinum-silicon cathodes - silver reference anode, used partic. medically to measure partial pressure of oxygen

Publications (2)

Publication Number Publication Date
FR2425641A1 true FR2425641A1 (en) 1979-12-07
FR2425641B1 FR2425641B1 (en) 1981-11-27

Family

ID=9208200

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814179A Granted FR2425641A1 (en) 1978-05-12 1978-05-12 Polarographic cell contg. platinum-silicon cathodes - silver reference anode, used partic. medically to measure partial pressure of oxygen

Country Status (1)

Country Link
FR (1) FR2425641A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064970A2 (en) * 1981-05-07 1982-11-17 Ottosensors Corporation Mecidal probe
EP0284518A2 (en) * 1987-03-27 1988-09-28 Isao Karube Miniaturized oxygen electrode and miniaturized biosensor and production process thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336919A (en) * 1964-02-21 1967-08-22 Russ Clem Implanted electrode for measuring oxygen pressure in an organ
US4062750A (en) * 1974-12-18 1977-12-13 James Francis Butler Thin film electrochemical electrode and cell

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336919A (en) * 1964-02-21 1967-08-22 Russ Clem Implanted electrode for measuring oxygen pressure in an organ
US4062750A (en) * 1974-12-18 1977-12-13 James Francis Butler Thin film electrochemical electrode and cell

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064970A2 (en) * 1981-05-07 1982-11-17 Ottosensors Corporation Mecidal probe
EP0064970A3 (en) * 1981-05-07 1983-11-09 Otto Dipl.-Ing. Dr. Prohaska Mecidal probe
US4682602A (en) * 1981-05-07 1987-07-28 Ottosensor Corporation Probe for medical application
EP0284518A2 (en) * 1987-03-27 1988-09-28 Isao Karube Miniaturized oxygen electrode and miniaturized biosensor and production process thereof
EP0284518A3 (en) * 1987-03-27 1989-11-29 Isao Karube Miniaturized oxygen electrode and miniaturized biosensor and production process thereof

Also Published As

Publication number Publication date
FR2425641B1 (en) 1981-11-27

Similar Documents

Publication Publication Date Title
US4062750A (en) Thin film electrochemical electrode and cell
US5304293A (en) Microsensors for gaseous and vaporous species
ATE23943T1 (en) SOLID SENSOR FOR MEASURING TRANSCUTANEOUS BLOOD GAS.
JPS57118152A (en) Enzyme electrode
EP0027005B1 (en) A method of electrochemical sensing and a sensor for oxygen, halothane and nitrous oxide
GB521773A (en) Improvements in voltaic gas cell
FR2425641A1 (en) Polarographic cell contg. platinum-silicon cathodes - silver reference anode, used partic. medically to measure partial pressure of oxygen
Karagounis et al. A thick-film multiple component cathode three-electrode oxygen sensor
Churchill The formation of hydrogen peroxide during corrosion reactions
JPS5497089A (en) Oxygen concentration detector
Hahn Techniques for measuring the partial pressures of gases in the blood. I. In vitro measurements
CN204302217U (en) A kind of glucose sensing system
US5106479A (en) Metal/metal oxide electrode for determing chlorine
Ramsay XXII. The passage of hydrogen through a palladium septum, and the pressure which it produces
FR2426904A1 (en) Cell for measuring oxygen partial pressure in blood - made by microelectronics techniques with conductive silicon base bearing metal cathodes with oxygen-permeable membrane cover
JPH061254B2 (en) Oxygen electrode
Hoare Kinetic study of the rest potential on a platinum| oxygen diaphragm electrode
Kessler et al. Potentiometric polarographic pO2 electrode (pO2-PPE)
JPS585643A (en) Enzyme electrode
JPH0545330A (en) Carbon dioxide sensor
SE433504B (en) WAY TO TREAT THE INTERIOR SURFACE OF A RUBBER OF A Zirconia-Based Alloy FOR APPLICATION OF PROTECT LAYERS
JPS5518956A (en) Oxygen concentration detecting element
JPS57169668A (en) Electrode for measuring glucose concentration
GB1460622A (en) Production of moisture sensitive elements
JP2767868B2 (en) Small oxygen electrode

Legal Events

Date Code Title Description
ST Notification of lapse