WO2000074631A3 - Waveform interpreter for respiratory analysis - Google Patents

Waveform interpreter for respiratory analysis Download PDF

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Publication number
WO2000074631A3
WO2000074631A3 PCT/IL2000/000344 IL0000344W WO0074631A3 WO 2000074631 A3 WO2000074631 A3 WO 2000074631A3 IL 0000344 W IL0000344 W IL 0000344W WO 0074631 A3 WO0074631 A3 WO 0074631A3
Authority
WO
WIPO (PCT)
Prior art keywords
waveform
patient
analysis
waveforms
parameters
Prior art date
Application number
PCT/IL2000/000344
Other languages
French (fr)
Other versions
WO2000074631A2 (en
Inventor
Ephraim Carlebach
Original Assignee
Oridion Medical Ltd
Ephraim Carlebach
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 Oridion Medical Ltd, Ephraim Carlebach filed Critical Oridion Medical Ltd
Priority to EP00937152.7A priority Critical patent/EP1237477B1/en
Priority to JP2001501168A priority patent/JP2003532442A/en
Priority to AU52436/00A priority patent/AU5243600A/en
Publication of WO2000074631A2 publication Critical patent/WO2000074631A2/en
Publication of WO2000074631A3 publication Critical patent/WO2000074631A3/en

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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
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/083—Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
    • A61B5/0836—Measuring rate of CO2 production

Abstract

A capnograph which performs an analysis of the breath waveforms measured by the carbon dioxide sensor, interprets the results of this analysis, and outputs to the operator diagnostic information about the respiratory status of the patient, or about the adequacy of the breathing support provided to the patient. The instrument compares a number of parameters characteristic of the waveforms of the patient's breath with an internal library of the values of those parameters expected from normal waveforms stored in its memory. These parameters may either relate to specific features of the waveform in the time domain, or may characterize spectral components of the waveform in the frequency domain. The capnographic waveform analyis may be combined with further non-invasive measurements in order to provide an indication of the deviation of the value of EtCO2 from PaCO2.
PCT/IL2000/000344 1999-06-08 2000-06-08 Waveform interpreter for respiratory analysis WO2000074631A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00937152.7A EP1237477B1 (en) 1999-06-08 2000-06-08 Waveform interpreter for respiratory analysis
JP2001501168A JP2003532442A (en) 1999-06-08 2000-06-08 Waveform interpreter for respiratory analysis
AU52436/00A AU5243600A (en) 1999-06-08 2000-06-08 Waveform interpreter for respiratory analysis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL130371 1999-06-08
IL13037199A IL130371A (en) 1999-06-08 1999-06-08 Capnography waveform interpreter

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP11175221.8A Previously-Filed-Application EP2438855B1 (en) 1999-06-08 2000-06-08 Waveform interpretation for respiratory analysis

Publications (2)

Publication Number Publication Date
WO2000074631A2 WO2000074631A2 (en) 2000-12-14
WO2000074631A3 true WO2000074631A3 (en) 2001-12-06

Family

ID=11072900

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2000/000344 WO2000074631A2 (en) 1999-06-08 2000-06-08 Waveform interpreter for respiratory analysis

Country Status (6)

Country Link
US (2) US6428483B1 (en)
EP (3) EP2932895A1 (en)
JP (1) JP2003532442A (en)
AU (1) AU5243600A (en)
IL (1) IL130371A (en)
WO (1) WO2000074631A2 (en)

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US6997880B2 (en) 2006-02-14
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US20020082511A1 (en) 2002-06-27
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