CA971768A - Oximeter and method - Google Patents

Oximeter and method

Info

Publication number
CA971768A
CA971768A CA162,357A CA162357A CA971768A CA 971768 A CA971768 A CA 971768A CA 162357 A CA162357 A CA 162357A CA 971768 A CA971768 A CA 971768A
Authority
CA
Canada
Prior art keywords
oximeter
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
CA162,357A
Other versions
CA162357S (en
Inventor
Robert F. Shaw
David P. Sidlauskas
Donn D. Lobdell
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.)
Oximetrix Inc
Original Assignee
Oximetrix 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 Oximetrix Inc filed Critical Oximetrix Inc
Application granted granted Critical
Publication of CA971768A publication Critical patent/CA971768A/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
    • A61B5/1455—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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4416—Heterogeneous cables
CA162,357A 1972-02-01 1973-01-25 Oximeter and method Expired CA971768A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22257972A 1972-02-01 1972-02-01
US00400085A US3847483A (en) 1972-02-01 1973-09-24 Optical oximeter apparatus and method

Publications (1)

Publication Number Publication Date
CA971768A true CA971768A (en) 1975-07-29

Family

ID=26916958

Family Applications (1)

Application Number Title Priority Date Filing Date
CA162,357A Expired CA971768A (en) 1972-02-01 1973-01-25 Oximeter and method

Country Status (8)

Country Link
US (1) US3847483A (en)
AU (1) AU463065B2 (en)
CA (1) CA971768A (en)
CH (2) CH593067A5 (en)
DE (1) DE2365342A1 (en)
FR (1) FR2173981B1 (en)
GB (2) GB1419701A (en)
NL (1) NL7301460A (en)

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Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647299A (en) * 1970-04-20 1972-03-07 American Optical Corp Oximeter

Also Published As

Publication number Publication date
DE2304046A1 (en) 1973-08-09
DE2365342A1 (en) 1975-02-27
DE2304046B2 (en) 1975-05-22
AU463065B2 (en) 1975-07-17
CH593067A5 (en) 1977-11-15
NL7301460A (en) 1973-08-03
GB1419701A (en) 1975-12-31
US3847483A (en) 1974-11-12
FR2173981A1 (en) 1973-10-12
GB1419702A (en) 1975-12-31
AU5142773A (en) 1974-08-15
CH563019A5 (en) 1975-06-13
FR2173981B1 (en) 1974-02-01

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