WO1992003967A3 - A method of measuring blood pressure with a photoplethysmograph - Google Patents

A method of measuring blood pressure with a photoplethysmograph Download PDF

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Publication number
WO1992003967A3
WO1992003967A3 PCT/US1991/006914 US9106914W WO9203967A3 WO 1992003967 A3 WO1992003967 A3 WO 1992003967A3 US 9106914 W US9106914 W US 9106914W WO 9203967 A3 WO9203967 A3 WO 9203967A3
Authority
WO
WIPO (PCT)
Prior art keywords
photoplethysmograph
blood pressure
patient
measuring blood
output
Prior art date
Application number
PCT/US1991/006914
Other languages
French (fr)
Other versions
WO1992003967A2 (en
Inventor
Paul Harvey Jones
Wei-Min Wang
Original Assignee
Spacelabs 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 Spacelabs Inc filed Critical Spacelabs Inc
Priority to EP91918602A priority Critical patent/EP0498885B1/en
Priority to DE69119741T priority patent/DE69119741T2/en
Publication of WO1992003967A2 publication Critical patent/WO1992003967A2/en
Publication of WO1992003967A3 publication Critical patent/WO1992003967A3/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
    • A61B5/02—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
    • A61B5/021—Measuring pressure in heart or blood vessels

Abstract

A method and apparatus for determining arterial blood pressures uses a photoplethysmograph (4). The output (22) of which is calibrated to the patient (9) using an auxiliary blood pressure determining instrument (20); a constant (k) particular to the patient's arterial blood pressure-volume relationship is determined and is stored for later use; at the time of measurement information is obtained from the photoplethysmograph output (22); and a computer (24) determines the patient's systolic and diastolic blood pressures.
PCT/US1991/006914 1990-09-06 1991-09-06 A method of measuring blood pressure with a photoplethysmograph WO1992003967A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP91918602A EP0498885B1 (en) 1990-09-06 1991-09-06 A method of measuring blood pressure with a photoplethysmograph
DE69119741T DE69119741T2 (en) 1990-09-06 1991-09-06 METHOD FOR DETERMINING THE BLOOD PRESSURE BY MEANS OF PHOTOPLETHYSMOGRAPHY

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US57915990A 1990-09-06 1990-09-06
US579,159 1990-09-06
US656,021 1991-02-15
US07/656,021 US5140990A (en) 1990-09-06 1991-02-15 Method of measuring blood pressure with a photoplethysmograph

Publications (2)

Publication Number Publication Date
WO1992003967A2 WO1992003967A2 (en) 1992-03-19
WO1992003967A3 true WO1992003967A3 (en) 1992-04-30

Family

ID=27077687

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/006914 WO1992003967A2 (en) 1990-09-06 1991-09-06 A method of measuring blood pressure with a photoplethysmograph

Country Status (5)

Country Link
US (1) US5140990A (en)
EP (1) EP0498885B1 (en)
CA (1) CA2073019A1 (en)
DE (1) DE69119741T2 (en)
WO (1) WO1992003967A2 (en)

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Also Published As

Publication number Publication date
DE69119741T2 (en) 1996-10-02
US5140990A (en) 1992-08-25
CA2073019A1 (en) 1992-03-07
EP0498885A1 (en) 1992-08-19
DE69119741D1 (en) 1996-06-27
WO1992003967A2 (en) 1992-03-19
EP0498885B1 (en) 1996-05-22

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