DE3671602D1 - Verfahren und geraet zum feststellen optischer impulse. - Google Patents

Verfahren und geraet zum feststellen optischer impulse.

Info

Publication number
DE3671602D1
DE3671602D1 DE8686902611T DE3671602T DE3671602D1 DE 3671602 D1 DE3671602 D1 DE 3671602D1 DE 8686902611 T DE8686902611 T DE 8686902611T DE 3671602 T DE3671602 T DE 3671602T DE 3671602 D1 DE3671602 D1 DE 3671602D1
Authority
DE
Germany
Prior art keywords
detecting optical
optical impulses
impulses
detecting
optical
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
DE8686902611T
Other languages
English (en)
Inventor
E Goodman
E Corenman
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 DE3671602D1 publication Critical patent/DE3671602D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61B5/02—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
    • A61B5/0245—Detecting, measuring or recording pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
    • 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
    • A61B5/30—Input circuits therefor
    • A61B5/301—Input circuits therefor providing electrical separation, e.g. by using isolating transformers or optocouplers
    • 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
    • A61B5/30—Input circuits therefor
    • A61B5/305—Common mode rejection
    • 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
    • A61B5/30—Input circuits therefor
    • A61B5/307—Input circuits therefor specially adapted for particular uses
    • A61B5/308—Input circuits therefor specially adapted for particular uses for electrocardiography [ECG]
    • 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
    • A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
DE8686902611T 1985-04-01 1986-03-31 Verfahren und geraet zum feststellen optischer impulse. Expired - Lifetime DE3671602D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US71852585A 1985-04-01 1985-04-01
US06/742,720 US4802486A (en) 1985-04-01 1985-06-07 Method and apparatus for detecting optical pulses
PCT/US1986/000625 WO1986005674A1 (en) 1985-04-01 1986-03-31 Method and apparatus for detecting optical pulses

Publications (1)

Publication Number Publication Date
DE3671602D1 true DE3671602D1 (de) 1990-07-05

Family

ID=27109911

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686902611T Expired - Lifetime DE3671602D1 (de) 1985-04-01 1986-03-31 Verfahren und geraet zum feststellen optischer impulse.

Country Status (7)

Country Link
US (1) US4802486A (de)
EP (1) EP0217918B1 (de)
CN (1) CN86102111A (de)
AU (1) AU592561B2 (de)
CA (1) CA1260613A (de)
DE (1) DE3671602D1 (de)
WO (1) WO1986005674A1 (de)

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* Cited by examiner, † Cited by third party
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EP0217918B1 (de) 1990-05-30
CA1260613A (en) 1989-09-26
CN86102111A (zh) 1987-02-04
EP0217918A1 (de) 1987-04-15
WO1986005674A1 (en) 1986-10-09
AU5667786A (en) 1986-10-23
US4802486A (en) 1989-02-07

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