WO2008097598A3 - Blood volume analyzer - Google Patents

Blood volume analyzer Download PDF

Info

Publication number
WO2008097598A3
WO2008097598A3 PCT/US2008/001605 US2008001605W WO2008097598A3 WO 2008097598 A3 WO2008097598 A3 WO 2008097598A3 US 2008001605 W US2008001605 W US 2008001605W WO 2008097598 A3 WO2008097598 A3 WO 2008097598A3
Authority
WO
WIPO (PCT)
Prior art keywords
whole blood
blood volume
electrical property
blood
volume analyzer
Prior art date
Application number
PCT/US2008/001605
Other languages
French (fr)
Other versions
WO2008097598A2 (en
Inventor
Kenneth R Kensey
Daniel J Cho
Original Assignee
Kenneth R Kensey
Daniel J Cho
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 Kenneth R Kensey, Daniel J Cho filed Critical Kenneth R Kensey
Publication of WO2008097598A2 publication Critical patent/WO2008097598A2/en
Publication of WO2008097598A3 publication Critical patent/WO2008097598A3/en

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
    • A61B5/14535—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 for measuring haematocrit
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/487—Physical analysis of biological material of liquid biological material
    • G01N33/49—Blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Optics & Photonics (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Ecology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

A method for estimating blood content of whole blood that includes measuring an electrical property of whole blood, diluting the whole blood with a fluid of known electrical property, measuring the electrical property of the diluted whole blood, and estimating the content of blood based on the changes in the electrical property of the whole blood before and after dilution.
PCT/US2008/001605 2007-02-06 2008-02-07 Blood volume analyzer WO2008097598A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88839807P 2007-02-06 2007-02-06
US60/888,398 2007-02-06

Publications (2)

Publication Number Publication Date
WO2008097598A2 WO2008097598A2 (en) 2008-08-14
WO2008097598A3 true WO2008097598A3 (en) 2008-10-09

Family

ID=39682316

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2008/001605 WO2008097598A2 (en) 2007-02-06 2008-02-07 Blood volume analyzer
PCT/US2008/001782 WO2008097663A2 (en) 2007-02-06 2008-02-11 Blood volume analyzer

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2008/001782 WO2008097663A2 (en) 2007-02-06 2008-02-11 Blood volume analyzer

Country Status (1)

Country Link
WO (2) WO2008097598A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100159498A1 (en) * 2008-12-19 2010-06-24 Ritzen Kalle Blood analyzer with a blood cell sedimentation control mechanism and method of use

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250257A (en) * 1978-08-24 1981-02-10 Technicon Instruments Corporation Whole blood analyses in porous media
US20040158133A1 (en) * 1997-10-14 2004-08-12 Transonic Systems, Inc. Blood volume determination and sensor calibration
US20060025661A1 (en) * 2004-08-02 2006-02-02 Sweeney Robert J Device for monitoring fluid status
US20070027385A1 (en) * 2003-12-05 2007-02-01 Mark Brister Dual electrode system for a continuous analyte sensor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227988A (en) * 1979-03-30 1980-10-14 International Business Machines Corporation Potentiostat for use with electrochemical cells
US4374644A (en) * 1981-04-06 1983-02-22 Coulter Electronics, Inc. Blood cell volume monitoring
US4995268A (en) * 1989-09-01 1991-02-26 Ash Medical System, Incorporated Method and apparatus for determining a rate of flow of blood for an extracorporeal blood therapy instrument
US5143066A (en) * 1990-05-08 1992-09-01 University Of Pittsburgh Optical fiber sensors for continuous monitoring of biochemicals and related method
US7144486B1 (en) * 1997-04-30 2006-12-05 Board Of Trustees Of The University Of Arkansas Multilayer microcavity devices and methods
WO2003089926A2 (en) * 2002-04-19 2003-10-30 Mission Medical, Inc. Integrated automatic blood processing unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250257A (en) * 1978-08-24 1981-02-10 Technicon Instruments Corporation Whole blood analyses in porous media
US20040158133A1 (en) * 1997-10-14 2004-08-12 Transonic Systems, Inc. Blood volume determination and sensor calibration
US20070027385A1 (en) * 2003-12-05 2007-02-01 Mark Brister Dual electrode system for a continuous analyte sensor
US20060025661A1 (en) * 2004-08-02 2006-02-02 Sweeney Robert J Device for monitoring fluid status

Also Published As

Publication number Publication date
WO2008097663A3 (en) 2008-10-09
WO2008097598A2 (en) 2008-08-14
WO2008097663A2 (en) 2008-08-14

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