CH627277A5 - - Google Patents

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Publication number
CH627277A5
CH627277A5 CH1247077A CH1247077A CH627277A5 CH 627277 A5 CH627277 A5 CH 627277A5 CH 1247077 A CH1247077 A CH 1247077A CH 1247077 A CH1247077 A CH 1247077A CH 627277 A5 CH627277 A5 CH 627277A5
Authority
CH
Switzerland
Prior art keywords
quotient
oxygen saturation
signals
blood
wavelengths
Prior art date
Application number
CH1247077A
Other languages
German (de)
English (en)
Inventor
Robert F Shaw
John M Sperinde
Original Assignee
Oximetrix
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 Oximetrix filed Critical Oximetrix
Publication of CH627277A5 publication Critical patent/CH627277A5/de

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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
    • A61B5/1459—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 invasive, e.g. introduced into the body by a catheter
    • 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
    • G01N21/3151—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 using two sources of radiation of different wavelengths

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Toxicology (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)
CH1247077A 1976-10-18 1977-10-12 CH627277A5 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/733,278 US4114604A (en) 1976-10-18 1976-10-18 Catheter oximeter apparatus and method

Publications (1)

Publication Number Publication Date
CH627277A5 true CH627277A5 (ja) 1981-12-31

Family

ID=24946941

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1247077A CH627277A5 (ja) 1976-10-18 1977-10-12

Country Status (8)

Country Link
US (1) US4114604A (ja)
JP (1) JPS5350880A (ja)
CA (1) CA1086982A (ja)
CH (1) CH627277A5 (ja)
DE (1) DE2741981C3 (ja)
FR (1) FR2368038A1 (ja)
GB (1) GB1586888A (ja)
NL (1) NL178278C (ja)

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US4817623A (en) 1983-10-14 1989-04-04 Somanetics Corporation Method and apparatus for interpreting optical response data
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US6662033B2 (en) 1994-04-01 2003-12-09 Nellcor Incorporated Pulse oximeter and sensor optimized for low saturation
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US5935076A (en) * 1997-02-10 1999-08-10 University Of Alabama In Huntsville Method and apparatus for accurately measuring the transmittance of blood within a retinal vessel
US5776060A (en) * 1997-02-20 1998-07-07 University Of Alabama In Huntsville Method and apparatus for measuring blood oxygen saturation within a retinal vessel with light having several selected wavelengths
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US6198952B1 (en) 1998-10-30 2001-03-06 Medtronic, Inc. Multiple lens oxygen sensor for medical electrical lead
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US6248080B1 (en) 1997-09-03 2001-06-19 Medtronic, Inc. Intracranial monitoring and therapy delivery control device, system and method
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US5902326A (en) 1997-09-03 1999-05-11 Medtronic, Inc. Optical window for implantable medical devices
US5954050A (en) * 1997-10-20 1999-09-21 Christopher; Kent L. System for monitoring and treating sleep disorders using a transtracheal catheter
US6519486B1 (en) 1998-10-15 2003-02-11 Ntc Technology Inc. Method, apparatus and system for removing motion artifacts from measurements of bodily parameters
US7991448B2 (en) * 1998-10-15 2011-08-02 Philips Electronics North America Corporation Method, apparatus, and system for removing motion artifacts from measurements of bodily parameters
US6163723A (en) * 1998-10-22 2000-12-19 Medtronic, Inc. Circuit and method for implantable dual sensor medical electrical lead
US6144444A (en) * 1998-11-06 2000-11-07 Medtronic Avecor Cardiovascular, Inc. Apparatus and method to determine blood parameters
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US9341565B2 (en) 2004-07-07 2016-05-17 Masimo Corporation Multiple-wavelength physiological monitor
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Also Published As

Publication number Publication date
GB1586888A (en) 1981-03-25
DE2741981A1 (de) 1978-04-20
FR2368038B1 (ja) 1982-02-12
CA1086982A (en) 1980-10-07
FR2368038A1 (fr) 1978-05-12
JPS5350880A (en) 1978-05-09
NL178278C (nl) 1986-02-17
NL7709465A (nl) 1978-04-20
DE2741981B2 (de) 1979-10-25
US4114604A (en) 1978-09-19
DE2741981C3 (de) 1980-07-03
JPS6111096B2 (ja) 1986-04-01

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