DE602005024408D1 - Vorrichtung zur schätzung des hämatokrits - Google Patents

Vorrichtung zur schätzung des hämatokrits

Info

Publication number
DE602005024408D1
DE602005024408D1 DE602005024408T DE602005024408T DE602005024408D1 DE 602005024408 D1 DE602005024408 D1 DE 602005024408D1 DE 602005024408 T DE602005024408 T DE 602005024408T DE 602005024408 T DE602005024408 T DE 602005024408T DE 602005024408 D1 DE602005024408 D1 DE 602005024408D1
Authority
DE
Germany
Prior art keywords
hematocrit
technique
estimating
order
electrical impedance
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.)
Active
Application number
DE602005024408T
Other languages
English (en)
Inventor
Robert J Sweeney
Julio C Spinelli
Rodney W Salo
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.)
Cardiac Pacemakers Inc
Original Assignee
Cardiac Pacemakers Inc
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 Cardiac Pacemakers Inc filed Critical Cardiac Pacemakers Inc
Publication of DE602005024408D1 publication Critical patent/DE602005024408D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—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
    • A61B5/0538—Measuring electrical impedance or conductance of a portion of the body invasively, e.g. using a catheter
    • 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
    • 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
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
    • A61N1/36514—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure
    • A61N1/36521—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure the parameter being derived from measurement of an electrical impedance

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • External Artificial Organs (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
DE602005024408T 2004-08-02 2005-08-01 Vorrichtung zur schätzung des hämatokrits Active DE602005024408D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/909,926 US7356366B2 (en) 2004-08-02 2004-08-02 Device for monitoring fluid status
PCT/US2005/027277 WO2006017446A1 (en) 2004-08-02 2005-08-01 Device for estimating hematocrit

Publications (1)

Publication Number Publication Date
DE602005024408D1 true DE602005024408D1 (de) 2010-12-09

Family

ID=35124553

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005024408T Active DE602005024408D1 (de) 2004-08-02 2005-08-01 Vorrichtung zur schätzung des hämatokrits

Country Status (6)

Country Link
US (2) US7356366B2 (de)
EP (1) EP1781169B1 (de)
JP (1) JP4774054B2 (de)
AT (1) ATE485764T1 (de)
DE (1) DE602005024408D1 (de)
WO (1) WO2006017446A1 (de)

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Also Published As

Publication number Publication date
US8103326B2 (en) 2012-01-24
JP4774054B2 (ja) 2011-09-14
JP2008508078A (ja) 2008-03-21
US20080188730A1 (en) 2008-08-07
EP1781169A1 (de) 2007-05-09
WO2006017446A1 (en) 2006-02-16
ATE485764T1 (de) 2010-11-15
US7356366B2 (en) 2008-04-08
EP1781169B1 (de) 2010-10-27
US20060025661A1 (en) 2006-02-02

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