CA1094341A - Sterilizable, disposable optical scattering reference medium - Google Patents

Sterilizable, disposable optical scattering reference medium

Info

Publication number
CA1094341A
CA1094341A CA284,617A CA284617A CA1094341A CA 1094341 A CA1094341 A CA 1094341A CA 284617 A CA284617 A CA 284617A CA 1094341 A CA1094341 A CA 1094341A
Authority
CA
Canada
Prior art keywords
light guide
light
measuring device
catheter
optical
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
CA284,617A
Other languages
English (en)
French (fr)
Inventor
Robert F. Shaw
John M. Sperinde
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
Priority to CA351,025A priority Critical patent/CA1099129A/en
Application granted granted Critical
Publication of CA1094341A publication Critical patent/CA1094341A/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
    • A61B5/1495—Calibrating or testing of in-vivo probes
    • 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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/4785—Standardising light scatter apparatus; Standards therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
    • A61B2560/0228—Operational features of calibration, e.g. protocols for calibrating sensors using calibration standards
    • A61B2560/0233—Optical standards

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Optics & Photonics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Public Health (AREA)
  • Spectroscopy & Molecular Physics (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 Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
CA284,617A 1976-10-18 1977-08-12 Sterilizable, disposable optical scattering reference medium Expired CA1094341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA351,025A CA1099129A (en) 1976-10-18 1980-04-30 Sterilizable, disposable optical scattering reference medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73328076A 1976-10-18 1976-10-18
US733,280 1976-10-18

Publications (1)

Publication Number Publication Date
CA1094341A true CA1094341A (en) 1981-01-27

Family

ID=24946953

Family Applications (1)

Application Number Title Priority Date Filing Date
CA284,617A Expired CA1094341A (en) 1976-10-18 1977-08-12 Sterilizable, disposable optical scattering reference medium

Country Status (7)

Country Link
JP (1) JPS5350878A (de)
CA (1) CA1094341A (de)
CH (1) CH626171A5 (de)
DE (1) DE2741914C3 (de)
FR (1) FR2368032A1 (de)
GB (1) GB1595207A (de)
NL (1) NL7709499A (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526458A1 (de) * 1985-07-24 1987-01-29 Grundig Emv Einrichtung zur optischen truebungsmessung von gasen
US4650327A (en) * 1985-10-28 1987-03-17 Oximetrix, Inc. Optical catheter calibrating assembly
DE3736027A1 (de) * 1987-10-24 1989-05-03 Gerhard Dipl Phys Artmann Verfahren zur ermittlung der zu einem bestimmten zeitpunkt vorliegenden form von zellen und einrichtung zur durchfuehrung des verfahrens
DE3903031A1 (de) * 1989-02-02 1990-08-16 Berthold Koch Referenzgefaess zum beurteilen der truebung von fluessigkeiten
US5421329A (en) 1994-04-01 1995-06-06 Nellcor, Inc. Pulse oximeter sensor optimized for low saturation
US6662033B2 (en) 1994-04-01 2003-12-09 Nellcor Incorporated Pulse oximeter and sensor optimized for low saturation
DE60031551T2 (de) * 1999-08-31 2007-08-23 Nir Diagnostics Inc., Waterloo Vorrichtung zur überprüfung der genauigkeit eines spektralanalysators
DE102012104721B4 (de) 2012-05-31 2021-06-10 Endress+Hauser Conducta Gmbh+Co. Kg Festkörper, Trübungssensor und Verfahren zum Justieren, Kalibrieren oder zur Funktionsprüfung eines Trübungssensors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029682A (en) * 1959-07-17 1962-04-17 Research Corp Apparatus for determining percentage oxygen-saturation of blood
US3296922A (en) * 1963-04-22 1967-01-10 American Optical Corp Apparatus for determining oxygen saturation of blood
US3706499A (en) * 1970-03-02 1972-12-19 Becton Dickinson Co Blood test system
GB1325039A (en) * 1970-10-07 1973-08-01 Shaw R F Oximeter and method for in vivo determination of oxygen saturatiion in blood
US3947122A (en) * 1974-12-16 1976-03-30 American Optical Corporation Cuvette and stirrer for oximeter

Also Published As

Publication number Publication date
NL7709499A (nl) 1978-04-20
DE2741914B2 (de) 1981-06-04
JPS6120806B2 (de) 1986-05-23
CH626171A5 (en) 1981-10-30
GB1595207A (en) 1981-08-12
JPS5350878A (en) 1978-05-09
FR2368032B1 (de) 1982-01-22
FR2368032A1 (fr) 1978-05-12
DE2741914A1 (de) 1978-04-20
DE2741914C3 (de) 1982-11-11

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Legal Events

Date Code Title Description
MKEX Expiry