WO2008035076A3 - Blood oxygen monitor - Google Patents

Blood oxygen monitor Download PDF

Info

Publication number
WO2008035076A3
WO2008035076A3 PCT/GB2007/003566 GB2007003566W WO2008035076A3 WO 2008035076 A3 WO2008035076 A3 WO 2008035076A3 GB 2007003566 W GB2007003566 W GB 2007003566W WO 2008035076 A3 WO2008035076 A3 WO 2008035076A3
Authority
WO
WIPO (PCT)
Prior art keywords
blood oxygen
oxygen monitor
radiation
determining
wavelength
Prior art date
Application number
PCT/GB2007/003566
Other languages
French (fr)
Other versions
WO2008035076A2 (en
Inventor
Geoffrey Mathews
Veronica Hickson
Original Assignee
Electrode Company Ltd
Geoffrey Mathews
Veronica Hickson
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 Electrode Company Ltd, Geoffrey Mathews, Veronica Hickson filed Critical Electrode Company Ltd
Priority to EP07823903A priority Critical patent/EP2063763A2/en
Publication of WO2008035076A2 publication Critical patent/WO2008035076A2/en
Publication of WO2008035076A3 publication Critical patent/WO2008035076A3/en

Links

Classifications

    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G01N21/274—Calibration, base line adjustment, drift correction
    • 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
    • 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
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N21/3151—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using two sources of radiation of different wavelengths
    • 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
    • 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
    • A61B2562/08—Sensors provided with means for identification, e.g. barcodes or memory chips
    • A61B2562/085—Sensors provided with means for identification, e.g. barcodes or memory chips combined with means for recording calibration data
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N2021/3144—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths for oxymetry
    • 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
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N2021/3181—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using LEDs

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Medical Informatics (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Optics & Photonics (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Toxicology (AREA)

Abstract

Calibration apparatus for use in calibrating monitoring apparatus used in determining the oxygen content of blood, the calibration apparatus including a wavelength sensitive device to receive data relating to at least one radiation wavelength received from the sensor and a processor for determining an adjustment factor calculated from the data concerning the at least one radiation wavelength of radiation which can be used to calibrate the monitoring apparatus.
PCT/GB2007/003566 2006-09-20 2007-09-21 Blood oxygen monitor WO2008035076A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07823903A EP2063763A2 (en) 2006-09-20 2007-09-21 Blood oxygen monitor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0618547.4 2006-09-20
GB0618547A GB0618547D0 (en) 2006-09-20 2006-09-20 Blood oxygen monitor

Publications (2)

Publication Number Publication Date
WO2008035076A2 WO2008035076A2 (en) 2008-03-27
WO2008035076A3 true WO2008035076A3 (en) 2008-05-15

Family

ID=37421324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/003566 WO2008035076A2 (en) 2006-09-20 2007-09-21 Blood oxygen monitor

Country Status (3)

Country Link
EP (1) EP2063763A2 (en)
GB (1) GB0618547D0 (en)
WO (1) WO2008035076A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8265724B2 (en) 2007-03-09 2012-09-11 Nellcor Puritan Bennett Llc Cancellation of light shunting
US8364224B2 (en) 2008-03-31 2013-01-29 Covidien Lp System and method for facilitating sensor and monitor communication
US20100004518A1 (en) 2008-07-03 2010-01-07 Masimo Laboratories, Inc. Heat sink for noninvasive medical sensor
US8630691B2 (en) 2008-08-04 2014-01-14 Cercacor Laboratories, Inc. Multi-stream sensor front ends for noninvasive measurement of blood constituents
US9066660B2 (en) 2009-09-29 2015-06-30 Nellcor Puritan Bennett Ireland Systems and methods for high-pass filtering a photoplethysmograph signal
US8610769B2 (en) 2011-02-28 2013-12-17 Covidien Lp Medical monitor data collection system and method
WO2013077808A1 (en) * 2011-11-25 2013-05-30 Nitto Denko Corporation A method of obtaining a correction factor and a calibration device facilitating performance of said method
CN109924987A (en) * 2019-03-14 2019-06-25 浙江荷清柔性电子技术有限公司 Scaling method, system and the readable storage medium storing program for executing of reflectance oximetry

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001078593A1 (en) * 2000-04-17 2001-10-25 Nellcor Puritan Bennett Incorporated Pulse oximeter sensor with piece-wise function
US20030033102A1 (en) * 2001-08-09 2003-02-13 Thomas Dietiker System and method for a self-calibrating non-invasive sensor
US6600940B1 (en) * 2000-08-31 2003-07-29 Mallinckrodt Inc. Oximeter sensor with digital memory

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001078593A1 (en) * 2000-04-17 2001-10-25 Nellcor Puritan Bennett Incorporated Pulse oximeter sensor with piece-wise function
US6600940B1 (en) * 2000-08-31 2003-07-29 Mallinckrodt Inc. Oximeter sensor with digital memory
US20030033102A1 (en) * 2001-08-09 2003-02-13 Thomas Dietiker System and method for a self-calibrating non-invasive sensor

Also Published As

Publication number Publication date
EP2063763A2 (en) 2009-06-03
GB0618547D0 (en) 2006-11-01
WO2008035076A2 (en) 2008-03-27

Similar Documents

Publication Publication Date Title
WO2008035076A3 (en) Blood oxygen monitor
WO2011119201A3 (en) Calibration of glucose monitoring sensor and/or insulin delivery system
WO2009063443A3 (en) Medical system, apparatus and method
WO2010147659A3 (en) Closed-loop glucose and/or insulin control system
WO2008021913A3 (en) Calibration of an analyte sensor
HK1133217A1 (en) Combined drug delivery and analyte sensor apparatus
WO2009037654A3 (en) Feedback apparatus for a game
WO2012058337A3 (en) Continuous analyte monitor data recording device operable in a blinded mode
EP1877774A4 (en) Optical sensor device and image processing unit for measuring chemical concentrations, chemical saturations and biophysical parameters
WO2012142502A3 (en) Advanced analyte sensor calibration and error detection
WO2011028670A3 (en) Additional calibration for analyte monitor
WO2008016394A3 (en) System and method for high-sensitivity sensor
WO2007064564A3 (en) Non-encumbering, substantially continuous patient daily activity data measurement for indication of patient condition change for access by remote caregiver
EP4252639A3 (en) Method of calibrating an analyte sensor
WO2008067314A3 (en) Apparatus for detecting medical device acceleration condition
WO2008114224A3 (en) Method and device for substance measurement
WO2005057168A3 (en) Calibration techniques for a continuous analyte sensor
WO2008129532A3 (en) Device system and method for monitoring and controlling blood analyte levels
WO2009152962A3 (en) Holding device for securing a calibration element, and method for calibrating a measuring sensor of a coordinate measuring instrument
WO2008055229A3 (en) External sensing for implant rupture
WO2012040263A3 (en) Method and system for 3d display calibration with feedback determined by a camera device
EP1855588A4 (en) System and methods for processing analyte sensor data for sensor calibration
WO2009005960A3 (en) Method and apparatus for determining and delivering a drug bolus
WO2008113328A3 (en) Measuring device and method for optically determining the concentration of blood sugar and/or lactate in biological systems
WO2013062618A3 (en) A calibrating breathalyzer

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07823903

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 2007823903

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 1453/KOLNP/2009

Country of ref document: IN