GB1595207A - Apparatus for calibrating a photometric measuring device - Google Patents

Apparatus for calibrating a photometric measuring device Download PDF

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Publication number
GB1595207A
GB1595207A GB3398977A GB3398977A GB1595207A GB 1595207 A GB1595207 A GB 1595207A GB 3398977 A GB3398977 A GB 3398977A GB 3398977 A GB3398977 A GB 3398977A GB 1595207 A GB1595207 A GB 1595207A
Authority
GB
United Kingdom
Prior art keywords
light guide
catheter
optical
face
particles
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
GB3398977A
Other languages
English (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 GB1595207A publication Critical patent/GB1595207A/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)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Optics & Photonics (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (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)
GB3398977A 1976-10-18 1977-10-18 Apparatus for calibrating a photometric measuring device Expired GB1595207A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1595207A true GB1595207A (en) 1981-08-12

Family

ID=24946953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3398977A Expired GB1595207A (en) 1976-10-18 1977-10-18 Apparatus for calibrating a photometric measuring device

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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782237A (en) * 1994-04-01 1998-07-21 Nellcor Puritan Bennett Incorporated Pulse oximeter and sensor optimized for low saturation
US6662033B2 (en) 1994-04-01 2003-12-09 Nellcor Incorporated Pulse oximeter and sensor optimized for low saturation
US9719921B2 (en) 2012-05-31 2017-08-01 Endress+Hauser Conducta Gmbh+Co. Kg Solid body

Families Citing this family (5)

* 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
WO2001015596A1 (en) * 1999-08-31 2001-03-08 Cme Telemetrix Inc. Device for verifying the accuracy of a spectral analyzer

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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782237A (en) * 1994-04-01 1998-07-21 Nellcor Puritan Bennett Incorporated Pulse oximeter and sensor optimized for low saturation
US6272363B1 (en) 1994-04-01 2001-08-07 Nellcor Incorporated Pulse oximeter and sensor optimized for low saturation
US6662033B2 (en) 1994-04-01 2003-12-09 Nellcor Incorporated Pulse oximeter and sensor optimized for low saturation
US7349726B2 (en) 1994-04-01 2008-03-25 Nellcor Puritan Bennett Llc Pulse oximeter and sensor optimized for low saturation
US7376454B2 (en) 1994-04-01 2008-05-20 Nellcor Puritan Bennett Inc. Oximeter with selection between calculations based on patient type
US7415298B2 (en) 1994-04-01 2008-08-19 Nellcor Puritan Bennett Inc. Pulse oximeter and sensor optimized for low saturation
US9719921B2 (en) 2012-05-31 2017-08-01 Endress+Hauser Conducta Gmbh+Co. Kg Solid body

Also Published As

Publication number Publication date
JPS5350878A (en) 1978-05-09
FR2368032A1 (fr) 1978-05-12
NL7709499A (nl) 1978-04-20
CA1094341A (en) 1981-01-27
DE2741914B2 (de) 1981-06-04
JPS6120806B2 (de) 1986-05-23
DE2741914C3 (de) 1982-11-11
DE2741914A1 (de) 1978-04-20
FR2368032B1 (de) 1982-01-22
CH626171A5 (en) 1981-10-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee