GB1407969A - Electrical transducers for use in measuring characteristics of fluids - Google Patents

Electrical transducers for use in measuring characteristics of fluids

Info

Publication number
GB1407969A
GB1407969A GB5436971A GB5436971A GB1407969A GB 1407969 A GB1407969 A GB 1407969A GB 5436971 A GB5436971 A GB 5436971A GB 5436971 A GB5436971 A GB 5436971A GB 1407969 A GB1407969 A GB 1407969A
Authority
GB
United Kingdom
Prior art keywords
transducer
fluid
standardized
catheter
nov
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
GB5436971A
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB5436971A priority Critical patent/GB1407969A/en
Publication of GB1407969A publication Critical patent/GB1407969A/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
    • A61B5/145—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
    • A61B5/1473—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 invasive, e.g. introduced into the body by a catheter

Landscapes

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

Abstract

1407969 Electro-chemical analysis NATIONAL RESEARCH DEVELOPMENT CORP 14 Nov 1972 [23 Nov 1971] 54369/71 Heading G1N An electrical transducer, such as an oxygen permeable membrane electrode, is releasably secured to a container filled with a fluid having a standardized value of the characteristic to which the transducer is variable such as water saturated with air. As shown the transducer is of the type described in Patent Specification 1325873 including a catheter 2 provided with lead pellet anode 1 and silver cathode 3, a membrane (not shown) covering the end of the pellet. A plug 6 carrying the catheter 2 is provided with boss 8 which fits into a tube 7 filled with the standardized fluid 10 and is secured therein by adhesive tape 9. Before use the assembly is sterilized by α-rays. The measuring instrument to which the transducer is connected is calibrated with the transducer still in the standardized fluid. The container 7 is then removed for normal use.
GB5436971A 1971-11-23 1971-11-23 Electrical transducers for use in measuring characteristics of fluids Expired GB1407969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5436971A GB1407969A (en) 1971-11-23 1971-11-23 Electrical transducers for use in measuring characteristics of fluids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5436971A GB1407969A (en) 1971-11-23 1971-11-23 Electrical transducers for use in measuring characteristics of fluids

Publications (1)

Publication Number Publication Date
GB1407969A true GB1407969A (en) 1975-10-01

Family

ID=10470782

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5436971A Expired GB1407969A (en) 1971-11-23 1971-11-23 Electrical transducers for use in measuring characteristics of fluids

Country Status (1)

Country Link
GB (1) GB1407969A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436990A1 (en) * 1978-09-21 1980-04-18 Draegerwerk Ag METHOD FOR CALIBRATING A SENSOR AND SENSOR SUITABLE FOR THIS METHOD
WO1981002218A1 (en) * 1980-01-28 1981-08-06 J Kater Ion selective electrodes and calibration method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436990A1 (en) * 1978-09-21 1980-04-18 Draegerwerk Ag METHOD FOR CALIBRATING A SENSOR AND SENSOR SUITABLE FOR THIS METHOD
WO1981002218A1 (en) * 1980-01-28 1981-08-06 J Kater Ion selective electrodes and calibration method

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Legal Events

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