GB1370548A - Optical method and apparatus for determinations relating to the concentration of one or two components - Google Patents

Optical method and apparatus for determinations relating to the concentration of one or two components

Info

Publication number
GB1370548A
GB1370548A GB3233872A GB3233872A GB1370548A GB 1370548 A GB1370548 A GB 1370548A GB 3233872 A GB3233872 A GB 3233872A GB 3233872 A GB3233872 A GB 3233872A GB 1370548 A GB1370548 A GB 1370548A
Authority
GB
United Kingdom
Prior art keywords
concentration
signals
haemoglobin
concentrations
produce
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
GB3233872A
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.)
Medicor Muvek
Original Assignee
Medicor Muvek
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
Priority claimed from HUME001459 external-priority patent/HU166270B/hu
Application filed by Medicor Muvek filed Critical Medicor Muvek
Publication of GB1370548A publication Critical patent/GB1370548A/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
    • A61B5/1455—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 optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—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 optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
    • G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Optics & Photonics (AREA)
  • Immunology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
GB3233872A 1972-01-13 1972-07-11 Optical method and apparatus for determinations relating to the concentration of one or two components Expired GB1370548A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUME001459 HU166270B (https=) 1972-01-13 1972-01-13
FR7414568A FR2269072B1 (https=) 1972-01-13 1974-04-26

Publications (1)

Publication Number Publication Date
GB1370548A true GB1370548A (en) 1974-10-16

Family

ID=26218303

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3233872A Expired GB1370548A (en) 1972-01-13 1972-07-11 Optical method and apparatus for determinations relating to the concentration of one or two components

Country Status (2)

Country Link
FR (1) FR2269072B1 (https=)
GB (1) GB1370548A (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316664A1 (fr) * 1975-06-30 1977-01-28 Medicor Muevek Montage pour determiner des courbes de dilution de colorant en vue de calculer le debit cardiaque
FR2368038A1 (fr) * 1976-10-18 1978-05-12 Oximetrix Perfectionnements aux appareils et procedes d'oxymetrie utilisant un cathener
GB2136118A (en) * 1983-03-03 1984-09-12 Inst Francais Du Petrole A process and device for determining the composition of an alcohol-petrol mixture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037103A (en) * 1975-08-07 1977-07-19 Exxon Research And Engineering Company Diameter measuring system for cylindrical objects

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316664A1 (fr) * 1975-06-30 1977-01-28 Medicor Muevek Montage pour determiner des courbes de dilution de colorant en vue de calculer le debit cardiaque
FR2368038A1 (fr) * 1976-10-18 1978-05-12 Oximetrix Perfectionnements aux appareils et procedes d'oxymetrie utilisant un cathener
GB2136118A (en) * 1983-03-03 1984-09-12 Inst Francais Du Petrole A process and device for determining the composition of an alcohol-petrol mixture

Also Published As

Publication number Publication date
FR2269072B1 (https=) 1977-10-14
FR2269072A1 (https=) 1975-11-21

Similar Documents

Publication Publication Date Title
US5365066A (en) Low cost means for increasing measurement sensitivity in LED/IRED near-infrared instruments
Shepherd et al. A solid-state arteriovenous oxygen difference analyzer for flowing whole blood
US4286327A (en) Apparatus for near infrared quantitative analysis
DE3852108T2 (de) Vorrichtung und verfahren zur optischen messung der konzentration an material.
GB1426005A (en) Dual wavelength photometer for absorbance difference measurements
GB1426377A (en) Oximeter for monitoring oxygen saturation in blood
GB1478058A (en) Method for photometric measurement of concentration ratios
WO2001040771A3 (en) Apparatus and method for analyzing fluids
CA1158890A (en) Photometric analyser for studying automatically complex solutions
DE3673910D1 (de) Verfahren und geraet zur bestimmung von blutbestandteilen.
DE3785283D1 (de) Verfahren und geraet zur automatischen eichung von signalen in der oximetrie.
GB1376246A (en) Determining the oxygen content of blood
JPS5616847A (en) Nondispersion type infrared-ray analysis meter
GB1370548A (en) Optical method and apparatus for determinations relating to the concentration of one or two components
US4652136A (en) Method for the measurement of the difference in color contents of samples
GB1510719A (en) Atomic absorption spectroscopy with background correction
KR101490333B1 (ko) 빛의 투과도를 이용한 pH측정 장치 및 방법
GB2008745A (en) Spectrophotometer
KR870005241A (ko) 색변화를 유도하는 파라메타의 정밀측정을 위한 색채정량화 장치
JPS5484781A (en) Absorptiometric analysis method
RU2244935C2 (ru) Фотометрический способ измерения содержания билирубина в крови и устройство для его осуществления
JPS58193438A (ja) 二波長測光式吸光光度計
JPS56140240A (en) Photometer for blood coagulation measurement
RU1789048C (ru) Способ определени содержани жира и белка в молоке
DD203632A1 (de) Schnellverfahren und einrichtung zur fotometrischen blutuntersuchung

Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee