CA2221968A1 - Sensor, method and device for optical blood oximetry - Google Patents

Sensor, method and device for optical blood oximetry

Info

Publication number
CA2221968A1
CA2221968A1 CA002221968A CA2221968A CA2221968A1 CA 2221968 A1 CA2221968 A1 CA 2221968A1 CA 002221968 A CA002221968 A CA 002221968A CA 2221968 A CA2221968 A CA 2221968A CA 2221968 A1 CA2221968 A1 CA 2221968A1
Authority
CA
Canada
Prior art keywords
optical blood
sensor
new sensor
blood oximetry
light
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
CA002221968A
Other languages
French (fr)
Other versions
CA2221968C (en
Inventor
Ilya Fine
Alexander Sternberg
Yeshayahu Katz
Leonid Goldinov
Boris Rapoport
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.)
Tmm Acquisitions Ltd
Original Assignee
Cybro Medical Ltd.
Ilya Fine
Alexander Sternberg
Yeshayahu Katz
Leonid Goldinov
Boris Rapoport
T.M.M. Acquisitions, Ltd.
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
Priority claimed from IL11408095A external-priority patent/IL114080A0/en
Priority claimed from IL11408295A external-priority patent/IL114082A/en
Application filed by Cybro Medical Ltd., Ilya Fine, Alexander Sternberg, Yeshayahu Katz, Leonid Goldinov, Boris Rapoport, T.M.M. Acquisitions, Ltd. filed Critical Cybro Medical Ltd.
Publication of CA2221968A1 publication Critical patent/CA2221968A1/en
Application granted granted Critical
Publication of CA2221968C publication Critical patent/CA2221968C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61B5/1455—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
    • A61B5/14551—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 for measuring blood gases
    • A61B5/14552—Details of sensors specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0233—Special features of optical sensors or probes classified in A61B5/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/04—Arrangements of multiple sensors of the same type
    • A61B2562/046—Arrangements of multiple sensors of the same type in a matrix array
    • 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
    • G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
    • G01N21/474—Details of optical heads therefor, e.g. using optical fibres
    • G01N2021/4742—Details of optical heads therefor, e.g. using optical fibres comprising optical fibres
    • G01N2021/4747—Concentric bundles

Abstract

There is described a new sensor for optical blood oximetry as well as a method and apparatus in which the new sensor is used. The new sensor includes two point-like light emitters (23, 24) positioned in the center of the device in close proximity to each other and at least one and preferably two annular detector terminals (32, 39) concentrically surrounding the light emitters. The light sources may, for example, be two laser diodes emitting each monochromatic light within the range of 670 nm to 940 nm. The detector devices are, for example, photodetectors.
CA 2221968 1995-06-09 1996-06-06 Sensor, method and device for optical blood oximetry Expired - Lifetime CA2221968C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
IL11408095A IL114080A0 (en) 1995-06-09 1995-06-09 A method and a device for optical oximetry of blood
IL114082 1995-06-09
IL11408295A IL114082A (en) 1995-06-09 1995-06-09 Probe for optical blood oximetry
IL114080 1995-06-09
PCT/IL1996/000006 WO1996041566A2 (en) 1995-06-09 1996-06-06 Sensor, method and device for optical blood oximetry

Publications (2)

Publication Number Publication Date
CA2221968A1 true CA2221968A1 (en) 1996-12-27
CA2221968C CA2221968C (en) 2007-08-21

Family

ID=26323076

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2221968 Expired - Lifetime CA2221968C (en) 1995-06-09 1996-06-06 Sensor, method and device for optical blood oximetry

Country Status (8)

Country Link
US (1) US6031603A (en)
EP (1) EP0957747B1 (en)
JP (2) JP3772189B2 (en)
AU (1) AU708051B2 (en)
CA (1) CA2221968C (en)
DE (1) DE69631698T2 (en)
IL (1) IL122515A (en)
WO (1) WO1996041566A2 (en)

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AU5909696A (en) 1997-01-09
DE69631698T2 (en) 2004-07-29
IL122515A0 (en) 1998-06-15
JP2006051374A (en) 2006-02-23
IL122515A (en) 1999-10-28
JPH11507568A (en) 1999-07-06
WO1996041566A2 (en) 1996-12-27
DE69631698D1 (en) 2004-04-01
EP0957747B1 (en) 2004-02-25
AU708051B2 (en) 1999-07-29
WO1996041566A3 (en) 1997-05-15
EP0957747A4 (en) 1999-11-24
JP3772189B2 (en) 2006-05-10
EP0957747A2 (en) 1999-11-24
JP3928972B2 (en) 2007-06-13
CA2221968C (en) 2007-08-21
US6031603A (en) 2000-02-29

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