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GB1512989A - Method and apparatus for in vivo blood gas analysis - Google Patents

Method and apparatus for in vivo blood gas analysis

Info

Publication number
GB1512989A
GB1512989A GB2964475A GB2964475A GB1512989A GB 1512989 A GB1512989 A GB 1512989A GB 2964475 A GB2964475 A GB 2964475A GB 2964475 A GB2964475 A GB 2964475A GB 1512989 A GB1512989 A GB 1512989A
Authority
GB
United Kingdom
Prior art keywords
gases
carrier gas
valve
blood
membrane
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
GB2964475A
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.)
Airco Inc
Original Assignee
Airco Inc
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 Airco Inc filed Critical Airco Inc
Publication of GB1512989A publication Critical patent/GB1512989A/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 or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • 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
    • A61B5/14542—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 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 or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1468—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 using chemical or electrochemical methods, e.g. by polarographic means
    • A61B5/1473—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 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)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (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)
  • Investigating Or Analysing Biological Materials (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)

Abstract

1512989 Measuring blood gases AIRCO INC 15 July 1975 [1 Aug 1974] 29644/75 Heading ASK [Also in Division G1] A device for the sampling of gases dissolved in blood comprises a catheter 1, a portion (4) of which is a membrane which is gas-but not blood-permeable, a carrier gas source 30 connectable for flow of carrier gas to one face of the membrane 4, means to supply to the membrane portion 4 carrier gas at substantially atmospheric pressure, the device being adapted to allow a volume of carrier gas to contact the membrane portion for a preselected period of time to allow establishment of an equilibrium between the carrier gas and the dissolved blood gases, and means which may comprise syringe 34 or a vacuum pump (35, Fig. 4 not shown) connected to the catheter to remove the equilibrated gases from the catheter. In the embodiment shown, syringe 34 draws the gases into valve 50 when the valve is in position I, then operation of the valve into position II allows flushing of the gases into analyser 49 by means of an auxiliary carrier gas stream from 47. The device of Fig. 4 (not shown) includes a calibration gas supply (61) connected upstream of the valve. Port 86 provides for the taking of blood samples.
GB2964475A 1974-08-01 1975-07-15 Method and apparatus for in vivo blood gas analysis Expired GB1512989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49393874A 1974-08-01 1974-08-01

Publications (1)

Publication Number Publication Date
GB1512989A true GB1512989A (en) 1978-06-01

Family

ID=23962342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2964475A Expired GB1512989A (en) 1974-08-01 1975-07-15 Method and apparatus for in vivo blood gas analysis

Country Status (4)

Country Link
JP (1) JPS5326154B2 (en)
DE (1) DE2534255C3 (en)
FR (1) FR2280901A1 (en)
GB (1) GB1512989A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463593A (en) * 1980-11-11 1984-08-07 G. D. Searle & Co. Apparatus for monitoring the partial pressure of gases
WO2009043555A1 (en) * 2007-09-27 2009-04-09 Roche Diagnostics Gmbh System for removal and infusion of body fluid, and method for its operation

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2734247C2 (en) * 1977-07-29 1984-07-19 Fresenius AG, 6380 Bad Homburg Device for continuous chemical analysis in the living body
US4187856A (en) * 1978-04-03 1980-02-12 The Perkin-Elmer Corporation High-speed transmission of blood stream gases
JPS54161341A (en) * 1978-06-09 1979-12-20 Ricoh Co Ltd Toner cleaner
DE3530689A1 (en) * 1985-08-28 1987-03-12 Siegfried Dipl Phys Stiller Method for continuous measurement of the haemoglobin concentration in the extracorporeal circulation
DE3615973A1 (en) * 1985-08-28 1987-11-19 Siegfried Dipl Phys Stiller Method for continuously measuring the haemoglobin concentration in an extracorporeal circulation
FI96379C (en) * 1992-10-16 1996-06-25 Instrumentarium Oy Method and apparatus for analyzing a sample
DE4426694C2 (en) * 1994-07-28 1998-07-23 Boehringer Mannheim Gmbh Device for long-term determination of the content of at least one substance in body fluids

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4463593A (en) * 1980-11-11 1984-08-07 G. D. Searle & Co. Apparatus for monitoring the partial pressure of gases
WO2009043555A1 (en) * 2007-09-27 2009-04-09 Roche Diagnostics Gmbh System for removal and infusion of body fluid, and method for its operation
US8444594B2 (en) 2007-09-27 2013-05-21 Roche Diagnostics Operations, Inc. System for removal and infusion of body fluid, and method for its operation

Also Published As

Publication number Publication date
FR2280901B1 (en) 1977-12-09
DE2534255C3 (en) 1978-12-07
JPS5149082A (en) 1976-04-27
DE2534255A1 (en) 1976-03-11
FR2280901A1 (en) 1976-02-27
JPS5326154B2 (en) 1978-07-31
DE2534255B2 (en) 1978-04-13

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Legal Events

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