WO1998051213A1 - Dilution curve measuring instrument and method - Google Patents

Dilution curve measuring instrument and method Download PDF

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Publication number
WO1998051213A1
WO1998051213A1 PCT/JP1998/002075 JP9802075W WO9851213A1 WO 1998051213 A1 WO1998051213 A1 WO 1998051213A1 JP 9802075 W JP9802075 W JP 9802075W WO 9851213 A1 WO9851213 A1 WO 9851213A1
Authority
WO
WIPO (PCT)
Prior art keywords
dilution curve
measuring instrument
circulation
curve measuring
waveforms
Prior art date
Application number
PCT/JP1998/002075
Other languages
French (fr)
Japanese (ja)
Inventor
Tadashi Asahina
Shigeo Tanaka
Original Assignee
Tadashi Asahina
Shigeo Tanaka
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 Tadashi Asahina, Shigeo Tanaka filed Critical Tadashi Asahina
Publication of WO1998051213A1 publication Critical patent/WO1998051213A1/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
    • A61B5/026—Measuring blood flow
    • A61B5/0275—Measuring blood flow using tracers, e.g. dye dilution
    • 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
    • A61B5/026—Measuring blood flow
    • A61B5/029—Measuring or recording blood output from the heart, e.g. minute volume

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Physiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

A dilution curve measuring instrument functioning also as an infusion device, a short-period dilution curve measuring instrument permitting continuous measurement, and a method therefor. Parameters of a logical function are calculated from measured values by using the logical function to separate primary circulation, re-circulation and high-order re-circulation waveforms. In other words, a mathematical model of a dilution curve is created and solved from the measured values to obtain primary circulation, re-circulation and high-order re-circulation curves. The measurement accuracy is improved by correcting physiological changes of the dilution curve by the heart dynamic waveforms, thus making high speed injection of an indicator possible. The output (one-minute value) and the output per pulse are corrected by the heart dynamic waveforms. This invention provides also a percutaneous absorption type dilution curve measuring instrument and a method therefor, a dilution curve measuring instrument having a diagnostic function, and a dilution curve measuring instrument having an alarming function. When tubes are controlled from outside by the infusion pump in accordance with a pseudo-random time-series by removing the DC component, pigment can be intermittently supplied accurately and constantly in accordance with the pseudo-random time-series in the case of percutaneous absorption, leakage can be removed, if any, and the pigment in the blood can be removed, too.
PCT/JP1998/002075 1997-05-09 1998-05-11 Dilution curve measuring instrument and method WO1998051213A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP9/119749 1997-05-09
JP11974997 1997-05-09
JP22466197 1997-08-21
JP9/224661 1997-08-21

Publications (1)

Publication Number Publication Date
WO1998051213A1 true WO1998051213A1 (en) 1998-11-19

Family

ID=26457423

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/002075 WO1998051213A1 (en) 1997-05-09 1998-05-11 Dilution curve measuring instrument and method

Country Status (1)

Country Link
WO (1) WO1998051213A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009519082A (en) * 2005-12-15 2009-05-14 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ System, apparatus and method for reproducible and comparable flow acquisition

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893387A (en) * 1972-03-10 1973-12-03
JPS58138436A (en) * 1982-02-10 1983-08-17 住友電気工業株式会社 Apparatus for measuring cardiac pulse output amount cardiac venticle volume and output fractionation
JPS59230537A (en) * 1983-06-13 1984-12-25 住友電気工業株式会社 Cardiac pulse output measuring method
JPH06500163A (en) * 1990-04-18 1994-01-06 インターフロー　メディカル　インコーポレーテッド Device that continuously measures volumetric flow rate
JPH08252329A (en) * 1995-03-16 1996-10-01 Advance Co Ltd Interface for iontophoresis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893387A (en) * 1972-03-10 1973-12-03
JPS58138436A (en) * 1982-02-10 1983-08-17 住友電気工業株式会社 Apparatus for measuring cardiac pulse output amount cardiac venticle volume and output fractionation
JPS59230537A (en) * 1983-06-13 1984-12-25 住友電気工業株式会社 Cardiac pulse output measuring method
JPH06500163A (en) * 1990-04-18 1994-01-06 インターフロー　メディカル　インコーポレーテッド Device that continuously measures volumetric flow rate
JPH08252329A (en) * 1995-03-16 1996-10-01 Advance Co Ltd Interface for iontophoresis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009519082A (en) * 2005-12-15 2009-05-14 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ System, apparatus and method for reproducible and comparable flow acquisition

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