JPS6216646B2 - - Google Patents

Info

Publication number
JPS6216646B2
JPS6216646B2 JP53076084A JP7608478A JPS6216646B2 JP S6216646 B2 JPS6216646 B2 JP S6216646B2 JP 53076084 A JP53076084 A JP 53076084A JP 7608478 A JP7608478 A JP 7608478A JP S6216646 B2 JPS6216646 B2 JP S6216646B2
Authority
JP
Japan
Prior art keywords
change
light intensity
light
signals
signal
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
JP53076084A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5524004A (en
Inventor
Kenji Hamaguri
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.)
Minolta Co Ltd
Original Assignee
Minolta Co Ltd
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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP7608478A priority Critical patent/JPS5524004A/ja
Priority to US06/050,097 priority patent/US4266554A/en
Publication of JPS5524004A publication Critical patent/JPS5524004A/ja
Publication of JPS6216646B2 publication Critical patent/JPS6216646B2/ja
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
    • A61B5/1455—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 optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—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 optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • 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)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP7608478A 1978-06-22 1978-06-22 Oxymeter Granted JPS5524004A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP7608478A JPS5524004A (en) 1978-06-22 1978-06-22 Oxymeter
US06/050,097 US4266554A (en) 1978-06-22 1979-06-19 Digital oximeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7608478A JPS5524004A (en) 1978-06-22 1978-06-22 Oxymeter

Publications (2)

Publication Number Publication Date
JPS5524004A JPS5524004A (en) 1980-02-20
JPS6216646B2 true JPS6216646B2 (US06236872-20010522-M00003.png) 1987-04-14

Family

ID=13594953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7608478A Granted JPS5524004A (en) 1978-06-22 1978-06-22 Oxymeter

Country Status (2)

Country Link
US (1) US4266554A (US06236872-20010522-M00003.png)
JP (1) JPS5524004A (US06236872-20010522-M00003.png)

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Also Published As

Publication number Publication date
US4266554A (en) 1981-05-12
JPS5524004A (en) 1980-02-20

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