DE3786216D1 - Verfahren und geraet zur verarbeitung von signalen angewendet in der oximetrie. - Google Patents

Verfahren und geraet zur verarbeitung von signalen angewendet in der oximetrie.

Info

Publication number
DE3786216D1
DE3786216D1 DE8787307254T DE3786216T DE3786216D1 DE 3786216 D1 DE3786216 D1 DE 3786216D1 DE 8787307254 T DE8787307254 T DE 8787307254T DE 3786216 T DE3786216 T DE 3786216T DE 3786216 D1 DE3786216 D1 DE 3786216D1
Authority
DE
Germany
Prior art keywords
signal
positive
peaks
negative
points
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 - Fee Related
Application number
DE8787307254T
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English (en)
Other versions
DE3786216T2 (de
Inventor
Robert Eugene Smith
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.)
Physio Control Inc
Original Assignee
Physio Control 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 Physio Control Inc filed Critical Physio Control Inc
Application granted granted Critical
Publication of DE3786216D1 publication Critical patent/DE3786216D1/de
Publication of DE3786216T2 publication Critical patent/DE3786216T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • A61B5/1455—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 using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—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 using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • 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
DE87307254T 1986-08-18 1987-08-17 Verfahren und Gerät zur Verarbeitung von Signalen angewendet in der Oximetrie. Expired - Fee Related DE3786216T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/897,750 US4800495A (en) 1986-08-18 1986-08-18 Method and apparatus for processing signals used in oximetry

Publications (2)

Publication Number Publication Date
DE3786216D1 true DE3786216D1 (de) 1993-07-22
DE3786216T2 DE3786216T2 (de) 1993-11-11

Family

ID=25408363

Family Applications (1)

Application Number Title Priority Date Filing Date
DE87307254T Expired - Fee Related DE3786216T2 (de) 1986-08-18 1987-08-17 Verfahren und Gerät zur Verarbeitung von Signalen angewendet in der Oximetrie.

Country Status (8)

Country Link
US (1) US4800495A (de)
EP (1) EP0262778B1 (de)
JP (1) JPH01500647A (de)
AT (1) ATE90537T1 (de)
AU (1) AU588768B2 (de)
CA (1) CA1298483C (de)
DE (1) DE3786216T2 (de)
WO (1) WO1988001128A2 (de)

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DE3786216T2 (de) 1993-11-11
US4800495A (en) 1989-01-24
ATE90537T1 (de) 1993-07-15
AU588768B2 (en) 1989-09-21
WO1988001128A3 (en) 1988-05-05
EP0262778A1 (de) 1988-04-06
EP0262778B1 (de) 1993-06-16
WO1988001128A2 (en) 1988-02-25
CA1298483C (en) 1992-04-07
AU7718487A (en) 1988-02-25
JPH01500647A (ja) 1989-03-09

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