WO2007033318A3 - Continuous spectroscopic measurement of total hemoglobin - Google Patents

Continuous spectroscopic measurement of total hemoglobin Download PDF

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Publication number
WO2007033318A3
WO2007033318A3 PCT/US2006/035830 US2006035830W WO2007033318A3 WO 2007033318 A3 WO2007033318 A3 WO 2007033318A3 US 2006035830 W US2006035830 W US 2006035830W WO 2007033318 A3 WO2007033318 A3 WO 2007033318A3
Authority
WO
WIPO (PCT)
Prior art keywords
total hemoglobin
multiple wavelengths
spectroscopic measurement
measuring
comparison
Prior art date
Application number
PCT/US2006/035830
Other languages
French (fr)
Other versions
WO2007033318A2 (en
Inventor
Michael J Higgins
Original Assignee
Edwards Lifesciences Corp
Michael J Higgins
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 Edwards Lifesciences Corp, Michael J Higgins filed Critical Edwards Lifesciences Corp
Priority to JP2008530038A priority Critical patent/JP2009507569A/en
Priority to EP06803589A priority patent/EP1924195A2/en
Priority to CA2610753A priority patent/CA2610753C/en
Publication of WO2007033318A2 publication Critical patent/WO2007033318A2/en
Publication of WO2007033318A3 publication Critical patent/WO2007033318A3/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14535Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring haematocrit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0075Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0082Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
    • A61B5/0084Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for introduction into the body, e.g. by catheters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0082Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
    • A61B5/0084Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for introduction into the body, e.g. by catheters
    • A61B5/0086Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for introduction into the body, e.g. by catheters using infrared radiation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/41Detecting, measuring or recording for evaluating the immune or lymphatic systems
    • A61B5/414Evaluating particular organs or parts of the immune or lymphatic systems
    • A61B5/417Evaluating particular organs or parts of the immune or lymphatic systems the bone marrow
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483Physical analysis of biological material
    • G01N33/487Physical analysis of biological material of liquid biological material
    • G01N33/49Blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/72Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7203Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal

Abstract

Methods for measuring the total hemoglobin of whole blood include measuring reflective light at multiple wavelengths within the visible spectrum, calculating light absorbance at each of the multiple wavelengths, performing a comparison in a change in like absorbance between the multiple wavelengths, and/or relating the comparison to total hemoglobin. A system for measuring total hemoglobin of whole blood may include at least one light source, a catheter, optical fibers, at least one photodetector, data processing circuitry, and/or a display unit.
PCT/US2006/035830 2005-09-13 2006-09-13 Continuous spectroscopic measurement of total hemoglobin WO2007033318A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008530038A JP2009507569A (en) 2005-09-13 2006-09-13 Continuous spectroscopic measurement of total hemoglobin
EP06803589A EP1924195A2 (en) 2005-09-13 2006-09-13 Continuous spectroscopic measurement of total hemoglobin
CA2610753A CA2610753C (en) 2005-09-13 2006-09-13 Continuous spectroscopic measurement of total hemoglobin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71669505P 2005-09-13 2005-09-13
US60/716,695 2005-09-13

Publications (2)

Publication Number Publication Date
WO2007033318A2 WO2007033318A2 (en) 2007-03-22
WO2007033318A3 true WO2007033318A3 (en) 2007-05-03

Family

ID=37499523

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/035830 WO2007033318A2 (en) 2005-09-13 2006-09-13 Continuous spectroscopic measurement of total hemoglobin

Country Status (6)

Country Link
US (3) US7426407B2 (en)
EP (1) EP1924195A2 (en)
JP (1) JP2009507569A (en)
CN (1) CN101232843A (en)
CA (2) CA2824033A1 (en)
WO (1) WO2007033318A2 (en)

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Also Published As

Publication number Publication date
WO2007033318A2 (en) 2007-03-22
US7319894B2 (en) 2008-01-15
US7426407B2 (en) 2008-09-16
CA2610753C (en) 2014-04-29
US8483789B2 (en) 2013-07-09
US20070060810A1 (en) 2007-03-15
JP2009507569A (en) 2009-02-26
US20070060809A1 (en) 2007-03-15
CA2824033A1 (en) 2007-03-22
US20080108887A1 (en) 2008-05-08
CN101232843A (en) 2008-07-30
CA2610753A1 (en) 2007-03-22
EP1924195A2 (en) 2008-05-28

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