GB2228314B - Examination apparatus - Google Patents

Examination apparatus

Info

Publication number
GB2228314B
GB2228314B GB8903518A GB8903518A GB2228314B GB 2228314 B GB2228314 B GB 2228314B GB 8903518 A GB8903518 A GB 8903518A GB 8903518 A GB8903518 A GB 8903518A GB 2228314 B GB2228314 B GB 2228314B
Authority
GB
United Kingdom
Prior art keywords
examination apparatus
examination
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 - Fee Related
Application number
GB8903518A
Other versions
GB2228314A (en
GB8903518D0 (en
Inventor
Takaji Yamashita
Yutaka Yamashita
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.)
Hamamatsu Photonics KK
Original Assignee
Hamamatsu Photonics KK
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 Hamamatsu Photonics KK filed Critical Hamamatsu Photonics KK
Priority to GB8903518A priority Critical patent/GB2228314B/en
Publication of GB8903518D0 publication Critical patent/GB8903518D0/en
Publication of GB2228314A publication Critical patent/GB2228314A/en
Priority to US07/639,377 priority patent/US5090415A/en
Application granted granted Critical
Publication of GB2228314B publication Critical patent/GB2228314B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6814—Head
    • 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
    • A61B5/14553—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 specially adapted for cerebral tissue
    • 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
    • G01N21/4795—Scattering, i.e. diffuse reflection spatially resolved investigating of object in scattering medium
    • 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
    • G01N2021/178—Methods for obtaining spatial resolution of the property being measured
    • 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
    • G01N2021/1789—Time resolved
    • G01N2021/1791—Time resolved stroboscopic; pulse gated; time range gated
    • 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
    • G01N2021/4704—Angular selective
    • G01N2021/4709—Backscatter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/08—Optical fibres; light guides
GB8903518A 1989-02-14 1989-02-16 Examination apparatus Expired - Fee Related GB2228314B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8903518A GB2228314B (en) 1989-02-16 1989-02-16 Examination apparatus
US07/639,377 US5090415A (en) 1989-02-14 1991-01-11 Examination apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8903518A GB2228314B (en) 1989-02-16 1989-02-16 Examination apparatus

Publications (3)

Publication Number Publication Date
GB8903518D0 GB8903518D0 (en) 1989-04-05
GB2228314A GB2228314A (en) 1990-08-22
GB2228314B true GB2228314B (en) 1992-11-18

Family

ID=10651790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8903518A Expired - Fee Related GB2228314B (en) 1989-02-14 1989-02-16 Examination apparatus

Country Status (1)

Country Link
GB (1) GB2228314B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5873821A (en) * 1992-05-18 1999-02-23 Non-Invasive Technology, Inc. Lateralization spectrophotometer
JPH04106748U (en) * 1991-02-28 1992-09-14 株式会社島津製作所 Optical biomeasuring device
WO1992020273A2 (en) * 1991-05-16 1992-11-26 Nim Incorporated Measuring metabolic conditions with hemoglobinometers
US6549795B1 (en) 1991-05-16 2003-04-15 Non-Invasive Technology, Inc. Spectrophotometer for tissue examination
EP0527703B1 (en) * 1991-08-12 1995-06-28 AVL Medical Instruments AG Device for measuring at least one gaseous concentration level in particular the oxygen concentration level in blood
US6785568B2 (en) 1992-05-18 2004-08-31 Non-Invasive Technology Inc. Transcranial examination of the brain
US5954053A (en) * 1995-06-06 1999-09-21 Non-Invasive Technology, Inc. Detection of brain hematoma
IL107396A (en) * 1992-11-09 1997-02-18 Boehringer Mannheim Gmbh Method and apparatus for analytical determination of glucose in a biological matrix
EP0700267A4 (en) * 1993-05-28 1998-06-24 Somanetics Corp Method and apparatus for spectrophotometric cerebral oximetry
JP3433498B2 (en) * 1993-06-02 2003-08-04 浜松ホトニクス株式会社 Method and apparatus for measuring internal information of scattering medium
JP3577335B2 (en) * 1993-06-02 2004-10-13 浜松ホトニクス株式会社 Scattering absorber measurement method and device
DE4340072C2 (en) * 1993-11-24 1996-05-15 Siemens Ag Device for examining tissue with light
US5497769A (en) * 1993-12-16 1996-03-12 I.S.S. (Usa) Inc. Photosensor with multiple light sources
US5492118A (en) 1993-12-16 1996-02-20 Board Of Trustees Of The University Of Illinois Determining material concentrations in tissues
JP3433534B2 (en) * 1994-11-07 2003-08-04 浜松ホトニクス株式会社 Method and apparatus for measuring scattering and absorption characteristics in scattering medium
US5601080A (en) * 1994-12-28 1997-02-11 Coretech Medical Technologies Corporation Spectrophotometric blood analysis
PL307419A1 (en) * 1995-02-21 1995-06-12 Andrzej Francisz Frydrychowski System for monitoring the cerebrospinal fluid filled space of cerebrum
US6240309B1 (en) 1995-10-06 2001-05-29 Hitachi, Ltd. Optical measurement instrument for living body
US5813403A (en) * 1995-11-08 1998-09-29 Soller; Babs R. Optical measurement of tissue pH
DE19681107B4 (en) * 1995-11-17 2006-01-26 Hitachi, Ltd. Instrument for optical measurement in a living body
JP3662376B2 (en) * 1996-05-10 2005-06-22 浜松ホトニクス株式会社 Internal characteristic distribution measuring method and apparatus
JP3660761B2 (en) * 1996-10-03 2005-06-15 技術研究組合医療福祉機器研究所 Method and apparatus for measuring absorption information of scatterers
JP5295584B2 (en) 2008-02-14 2013-09-18 国立大学法人 筑波大学 Blood flow measuring device and brain activity measuring device using blood flow measuring device
EP2272428B1 (en) * 2009-07-09 2015-03-04 University of Tsukuba Blood flow measuring apparatus and brain activity measuring apparatus using the same
CN104207767B (en) * 2009-07-14 2016-06-22 国立大学法人筑波大学 Bloodstream measurement device and use the cerebration measurement apparatus of this bloodstream measurement device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018534A (en) * 1975-05-21 1977-04-19 The United States Of America As Represented By The Secretary Of The Army Aerosol average-density determining system
US4281645A (en) * 1977-06-28 1981-08-04 Duke University, Inc. Method and apparatus for monitoring metabolism in body organs
GB2212261A (en) * 1987-11-06 1989-07-19 Stc Plc Water contaminant meter
WO1989012223A1 (en) * 1988-06-08 1989-12-14 Barbour Randall L A method of imaging a random medium
EP0358809A1 (en) * 1988-09-15 1990-03-21 Hellige GmbH Spectrophotometer for monitoring a living organism
WO1990007905A1 (en) * 1989-01-19 1990-07-26 Futrex, Inc. Non-invasive measurement of blood glucose

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018534A (en) * 1975-05-21 1977-04-19 The United States Of America As Represented By The Secretary Of The Army Aerosol average-density determining system
US4281645A (en) * 1977-06-28 1981-08-04 Duke University, Inc. Method and apparatus for monitoring metabolism in body organs
GB2212261A (en) * 1987-11-06 1989-07-19 Stc Plc Water contaminant meter
WO1989012223A1 (en) * 1988-06-08 1989-12-14 Barbour Randall L A method of imaging a random medium
EP0358809A1 (en) * 1988-09-15 1990-03-21 Hellige GmbH Spectrophotometer for monitoring a living organism
WO1990007905A1 (en) * 1989-01-19 1990-07-26 Futrex, Inc. Non-invasive measurement of blood glucose

Also Published As

Publication number Publication date
GB2228314A (en) 1990-08-22
GB8903518D0 (en) 1989-04-05

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Legal Events

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

Effective date: 20070216