FR2368032A1 - EQUIPMENT FOR REFERENCE OPTICAL DIFFUSER MEDIUM - Google Patents

EQUIPMENT FOR REFERENCE OPTICAL DIFFUSER MEDIUM

Info

Publication number
FR2368032A1
FR2368032A1 FR7730961A FR7730961A FR2368032A1 FR 2368032 A1 FR2368032 A1 FR 2368032A1 FR 7730961 A FR7730961 A FR 7730961A FR 7730961 A FR7730961 A FR 7730961A FR 2368032 A1 FR2368032 A1 FR 2368032A1
Authority
FR
France
Prior art keywords
medium
optical
reference optical
equipment
measurements
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.)
Granted
Application number
FR7730961A
Other languages
French (fr)
Other versions
FR2368032B1 (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.)
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
Publication of FR2368032A1 publication Critical patent/FR2368032A1/en
Application granted granted Critical
Publication of FR2368032B1 publication Critical patent/FR2368032B1/fr
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
    • A61B5/1495—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

Abstract

L'invention concerne les mesures optiques. On constitue un milieu diffuseur optique de référence en dispersant des particules qui diffusent la lumière, de manière pratiquement uniforme, dans un milieu solide transparent, souple et pratiquement incompressible; ce milieu peut être sélectivement mis en position contre la pointe d'un cathéter optique et être utilisé à l'intérieur d'une enveloppe amovible stérilisable pour effectuer des mesures photométriques répétitives, afin de calibrer les performances d'un instrument de mesure photométrique. Application : mesure optique de la saturation du sang en oxygene.The invention relates to optical measurements. A reference optical scattering medium is constituted by dispersing particles which scatter light, in a practically uniform manner, in a transparent, flexible and practically incompressible solid medium; this medium can be selectively positioned against the tip of an optical catheter and be used inside a removable sterilizable envelope to perform repetitive photometric measurements, in order to calibrate the performance of a photometric measuring instrument. Application: optical measurement of blood oxygen saturation.

FR7730961A 1976-10-18 1977-10-14 EQUIPMENT FOR REFERENCE OPTICAL DIFFUSER MEDIUM Granted FR2368032A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73328076A 1976-10-18 1976-10-18

Publications (2)

Publication Number Publication Date
FR2368032A1 true FR2368032A1 (en) 1978-05-12
FR2368032B1 FR2368032B1 (en) 1982-01-22

Family

ID=24946953

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730961A Granted FR2368032A1 (en) 1976-10-18 1977-10-14 EQUIPMENT FOR REFERENCE OPTICAL DIFFUSER MEDIUM

Country Status (7)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526458A1 (en) * 1985-07-24 1987-01-29 Grundig Emv DEVICE FOR OPTICAL TURBIDITY MEASUREMENT OF GASES
US4650327A (en) * 1985-10-28 1987-03-17 Oximetrix, Inc. Optical catheter calibrating assembly
DE3736027A1 (en) * 1987-10-24 1989-05-03 Gerhard Dipl Phys Artmann Method for determining the shape of cells which prevails at a specific instant and device for carrying out the method
DE3903031A1 (en) * 1989-02-02 1990-08-16 Berthold Koch REFERENCE TUBE FOR ASSESSING THE TURBIDITY OF LIQUIDS
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
JP2003508734A (en) * 1999-08-31 2003-03-04 シーエムイー テレメトリックス インク． Apparatus for verifying the accuracy of a spectrum analyzer
DE102012104721B4 (en) * 2012-05-31 2021-06-10 Endress+Hauser Conducta Gmbh+Co. Kg Solid body, turbidity sensor and methods for adjusting, calibrating or for functional testing of a turbidity sensor

Citations (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

Patent Citations (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
CH626171A5 (en) 1981-10-30
FR2368032B1 (en) 1982-01-22
JPS6120806B2 (en) 1986-05-23
DE2741914C3 (en) 1982-11-11
NL7709499A (en) 1978-04-20
GB1595207A (en) 1981-08-12
DE2741914B2 (en) 1981-06-04
DE2741914A1 (en) 1978-04-20
CA1094341A (en) 1981-01-27
JPS5350878A (en) 1978-05-09

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Legal Events

Date Code Title Description
ST Notification of lapse