DE69232267T2 - Verfahren zur impedanz-kardiographie und zur bestimmung des herz-rhythmus sowie apparat zu deren implementierung - Google Patents

Verfahren zur impedanz-kardiographie und zur bestimmung des herz-rhythmus sowie apparat zu deren implementierung

Info

Publication number
DE69232267T2
DE69232267T2 DE69232267T DE69232267T DE69232267T2 DE 69232267 T2 DE69232267 T2 DE 69232267T2 DE 69232267 T DE69232267 T DE 69232267T DE 69232267 T DE69232267 T DE 69232267T DE 69232267 T2 DE69232267 T2 DE 69232267T2
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DE
Germany
Prior art keywords
ekg
signal
processed
stroke volume
thoracic 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.)
Expired - Lifetime
Application number
DE69232267T
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English (en)
Other versions
DE69232267D1 (de
Inventor
Xiang Wang
H Sun
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Drexel University
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Drexel University
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Application filed by Drexel University filed Critical Drexel University
Publication of DE69232267D1 publication Critical patent/DE69232267D1/de
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Publication of DE69232267T2 publication Critical patent/DE69232267T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • 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
    • A61B5/0535—Impedance plethysmography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms
DE69232267T 1991-09-12 1992-09-11 Verfahren zur impedanz-kardiographie und zur bestimmung des herz-rhythmus sowie apparat zu deren implementierung Expired - Lifetime DE69232267T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US75803491A 1991-09-12 1991-09-12
US07/834,425 US5309917A (en) 1991-09-12 1992-02-12 System and method of impedance cardiography and heartbeat determination
PCT/US1992/007756 WO1993004627A1 (en) 1991-09-12 1992-09-11 Methods of impedance cardiography and heartbeat determination

Publications (2)

Publication Number Publication Date
DE69232267D1 DE69232267D1 (de) 2002-01-17
DE69232267T2 true DE69232267T2 (de) 2002-10-24

Family

ID=27116481

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69232267T Expired - Lifetime DE69232267T2 (de) 1991-09-12 1992-09-11 Verfahren zur impedanz-kardiographie und zur bestimmung des herz-rhythmus sowie apparat zu deren implementierung

Country Status (7)

Country Link
US (2) US5309917A (de)
EP (1) EP0606301B1 (de)
JP (1) JPH07503380A (de)
AT (1) ATE209873T1 (de)
CA (1) CA2118930C (de)
DE (1) DE69232267T2 (de)
WO (1) WO1993004627A1 (de)

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CA2118930C (en) 2004-02-10
EP0606301B1 (de) 2001-12-05
DE69232267D1 (de) 2002-01-17
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CA2118930A1 (en) 1993-03-18
ATE209873T1 (de) 2001-12-15
WO1993004627A1 (en) 1993-03-18
US5309917A (en) 1994-05-10
EP0606301A4 (en) 1997-12-03
EP0606301A1 (de) 1994-07-20

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