EP2073694A1 - Procédé et appareil pour indexer une amplitude de pouls - Google Patents

Procédé et appareil pour indexer une amplitude de pouls

Info

Publication number
EP2073694A1
EP2073694A1 EP06804239A EP06804239A EP2073694A1 EP 2073694 A1 EP2073694 A1 EP 2073694A1 EP 06804239 A EP06804239 A EP 06804239A EP 06804239 A EP06804239 A EP 06804239A EP 2073694 A1 EP2073694 A1 EP 2073694A1
Authority
EP
European Patent Office
Prior art keywords
pulse amplitude
pulse
amplitude
monitored
mathematical combination
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.)
Withdrawn
Application number
EP06804239A
Other languages
German (de)
English (en)
Other versions
EP2073694A4 (fr
Inventor
Bernhard B. Sterling
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.)
Woolsthorpe Technologies LLC
Original Assignee
Woolsthorpe Technologies LLC
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 Woolsthorpe Technologies LLC filed Critical Woolsthorpe Technologies LLC
Publication of EP2073694A1 publication Critical patent/EP2073694A1/fr
Publication of EP2073694A4 publication Critical patent/EP2073694A4/fr
Withdrawn legal-status Critical Current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 or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or 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
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1495—Calibrating or testing of in-vivo probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors

Definitions

  • FIGURE 2 is a schematic illustration of a pulse oximeter apparatus, according to the invention.
  • the r-wave portion of the QRS component is typically the steepest wave therein, having the largest amplitude and slope, and may be used for indicating the onset of cardiovascular activity.
  • the arterial blood pulse flows mechanically and its appearance in any part of the body typically follows the R wave of the electrical heart activity by a determinable period of time that remains essentially constant for a given patient. See, e.g., Goodlin et al., "Systolic Time Intervals in the Fetus and Neonate, Obstetrics and Gynecology", Vol. 39, No. 2, (February 1972) and U.S. Pat. No. 3,734,086.
  • the demodulator 24 which is employed in most pulse oximeter systems, removes any common mode signals present and splits the time multiplexed signal into two (2) channels, one representing the red voltage (or optical) signal and the other representing the infrared voltage (or optical) signal.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Optics & Photonics (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

La présente invention comprend un procédé et un appareil destinés à déterminer une caractéristique physiologique en détectant l'intensité de la lumière après absorption par le tissu à deux longueurs d'onde, en estimant l'amplitude de pouls et en indexant une caractéristique physiologique calculée sur l'amplitude de pouls estimée. Dans un mode de réalisation, le rapport des logarithmes de l'amplitude des signaux d'absorbance est indexé sur l'amplitude de pouls afin d'améliorer la précision de la saturation artérielle en oxygène déterminée par un oxymètre de pouls.
EP06804239A 2006-09-27 2006-09-27 Procédé et appareil pour indexer une amplitude de pouls Withdrawn EP2073694A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2006/037914 WO2008039195A1 (fr) 2006-09-27 2006-09-27 Procédé et appareil pour indexer une amplitude de pouls

Publications (2)

Publication Number Publication Date
EP2073694A1 true EP2073694A1 (fr) 2009-07-01
EP2073694A4 EP2073694A4 (fr) 2010-12-08

Family

ID=39230484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06804239A Withdrawn EP2073694A4 (fr) 2006-09-27 2006-09-27 Procédé et appareil pour indexer une amplitude de pouls

Country Status (3)

Country Link
EP (1) EP2073694A4 (fr)
JP (1) JP2010504803A (fr)
WO (1) WO2008039195A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8229530B2 (en) 2007-03-09 2012-07-24 Nellcor Puritan Bennett Llc System and method for detection of venous pulsation
US7541602B2 (en) 2007-06-04 2009-06-02 Or-Nim Medical Ltd. System and method for noninvasively monitoring conditions of a subject
US7961304B2 (en) 2007-09-13 2011-06-14 The Curators Of The University Of Missouri Optical device components
AU2008307505B2 (en) 2007-10-04 2013-01-31 St. Louis Medical Devices, Inc. Optical device components
US7961305B2 (en) 2007-10-23 2011-06-14 The Curators Of The University Of Missouri Optical device components
US10542919B2 (en) 2008-03-25 2020-01-28 St. Louis Medical Devices, Inc. Method and system for non-invasive blood glucose detection utilizing spectral data of one or more components other than glucose
US9560994B2 (en) 2008-03-26 2017-02-07 Covidien Lp Pulse oximeter with adaptive power conservation
RU2566920C2 (ru) 2008-05-22 2015-10-27 Дзе Кьюрейторз Оф Дзе Юниверсити Оф Миссури Способ и система для неинвазивного оптического определения глюкозы крови, используя спектральный анализ данных
WO2010004554A1 (fr) * 2008-07-06 2010-01-14 Or-Nim Medical Ltd. Procédé et système permettant une surveillance non effractive du flux d’un fluide dans un sujet
US9027412B2 (en) 2008-07-06 2015-05-12 Or-Nim Medical Ltd. Method and system for non-invasively monitoring fluid flow in a subject
US8336391B2 (en) 2008-07-06 2012-12-25 Or-Nim Medical Ltd. Method and system for non-invasively monitoring fluid flow in a subject
WO2010114736A1 (fr) 2009-04-01 2010-10-07 The Curators Of The University Of Missouri Dispositif de spectroscopie optique pour détection non invasive du glucose dans le sang et procédé d'utilisation associé
US8509869B2 (en) 2009-05-15 2013-08-13 Covidien Lp Method and apparatus for detecting and analyzing variations in a physiologic parameter
US9066660B2 (en) 2009-09-29 2015-06-30 Nellcor Puritan Bennett Ireland Systems and methods for high-pass filtering a photoplethysmograph signal
CN107683109B (zh) * 2015-06-25 2021-06-08 费森尤斯医疗控股股份有限公司 直接光差分测量系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2375635A1 (fr) * 1999-07-14 2001-01-18 Providence Health System-Oregon Procede et dispositif d'oximetrie pulsee a etalonnage adaptatif
US6882874B2 (en) * 2002-02-15 2005-04-19 Datex-Ohmeda, Inc. Compensation of human variability in pulse oximetry
US6711425B1 (en) * 2002-05-28 2004-03-23 Ob Scientific, Inc. Pulse oximeter with calibration stabilization
US7194293B2 (en) * 2004-03-08 2007-03-20 Nellcor Puritan Bennett Incorporated Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics

Also Published As

Publication number Publication date
EP2073694A4 (fr) 2010-12-08
JP2010504803A (ja) 2010-02-18
WO2008039195A1 (fr) 2008-04-03

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