DE69307912T2 - Verfahren und vorrichtung zur reduzierung von umgebungsgeraeusch in elektronischen ueberwachungsinstrumenten - Google Patents

Verfahren und vorrichtung zur reduzierung von umgebungsgeraeusch in elektronischen ueberwachungsinstrumenten

Info

Publication number
DE69307912T2
DE69307912T2 DE69307912T DE69307912T DE69307912T2 DE 69307912 T2 DE69307912 T2 DE 69307912T2 DE 69307912 T DE69307912 T DE 69307912T DE 69307912 T DE69307912 T DE 69307912T DE 69307912 T2 DE69307912 T2 DE 69307912T2
Authority
DE
Germany
Prior art keywords
environmental noise
electronic monitoring
reducing environmental
monitoring instruments
instruments
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
DE69307912T
Other languages
English (en)
Other versions
DE69307912D1 (de
Inventor
Charles Richardson
Michael Bernstein
Jerry Okikawa
Terrence Bennett
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.)
Nellcor Inc
Original Assignee
Nellcor 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 Nellcor Inc filed Critical Nellcor Inc
Application granted granted Critical
Publication of DE69307912D1 publication Critical patent/DE69307912D1/de
Publication of DE69307912T2 publication Critical patent/DE69307912T2/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
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
    • 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
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
DE69307912T 1992-10-23 1993-09-24 Verfahren und vorrichtung zur reduzierung von umgebungsgeraeusch in elektronischen ueberwachungsinstrumenten Expired - Fee Related DE69307912T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/965,684 US5368224A (en) 1992-10-23 1992-10-23 Method for reducing ambient noise effects in electronic monitoring instruments
PCT/US1993/009064 WO1994009698A1 (en) 1992-10-23 1993-09-24 Method and apparatus for reducing ambient noise effects in electronic monitoring instruments

Publications (2)

Publication Number Publication Date
DE69307912D1 DE69307912D1 (de) 1997-03-13
DE69307912T2 true DE69307912T2 (de) 1997-09-04

Family

ID=25510334

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69307912T Expired - Fee Related DE69307912T2 (de) 1992-10-23 1993-09-24 Verfahren und vorrichtung zur reduzierung von umgebungsgeraeusch in elektronischen ueberwachungsinstrumenten

Country Status (6)

Country Link
US (4) US5368224A (de)
EP (1) EP0665727B1 (de)
JP (2) JP3958353B2 (de)
AU (1) AU681357B2 (de)
DE (1) DE69307912T2 (de)
WO (1) WO1994009698A1 (de)

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DE69307912D1 (de) 1997-03-13
US5885213A (en) 1999-03-23
WO1994009698A1 (en) 1994-05-11
JP3958353B2 (ja) 2007-08-15
AU5163993A (en) 1994-05-24
US5713355A (en) 1998-02-03
US5555882A (en) 1996-09-17
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EP0665727A1 (de) 1995-08-09
AU681357B2 (en) 1997-08-28

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