EP2073694A1 - Procédé et appareil pour indexer une amplitude de pouls - Google Patents
Procédé et appareil pour indexer une amplitude de poulsInfo
- 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- Withdrawn
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
- A61B5/145—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
- A61B5/1495—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.
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.
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)
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 |
CN103637768B (zh) | 2007-09-13 | 2017-08-08 | 圣路易斯医疗器械有限公司 | 光学装置组件 |
CN101903757B (zh) | 2007-10-04 | 2012-08-29 | 密苏里大学董事会 | 光学装置组件 |
US7961305B2 (en) | 2007-10-23 | 2011-06-14 | The Curators Of The University Of Missouri | Optical device components |
JP2011516118A (ja) | 2008-03-25 | 2011-05-26 | ザ・キュレイターズ・オブ・ザ・ユニバーシティ・オブ・ミズーリ | グルコース以外の1つ以上の成分のスペクトルデータを使用して非侵襲で血糖を検出するための方法およびシステム |
US9560994B2 (en) | 2008-03-26 | 2017-02-07 | Covidien Lp | Pulse oximeter with adaptive power conservation |
CN102961147B (zh) | 2008-05-22 | 2015-04-15 | 密苏里大学董事会 | 用光谱数据分析进行无创的光学血糖检测的方法和系统 |
US8336391B2 (en) | 2008-07-06 | 2012-12-25 | Or-Nim Medical Ltd. | Method and system for non-invasively monitoring fluid flow in a subject |
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 |
CA2789658C (fr) | 2009-04-01 | 2017-11-07 | The Curators Of The University Of Missouri | Dispositif de spectroscopie optique pour detection non invasive du glucose dans le sang et procede d'utilisation associe |
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 |
JP6851996B2 (ja) | 2015-06-25 | 2021-03-31 | フレセニウス メディカル ケア ホールディングス インコーポレーテッド | 直接光の示差測定システム |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050197549A1 (en) * | 2004-03-08 | 2005-09-08 | Nellcor Puritan Bennett Incorporated | Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics |
US20050250998A1 (en) * | 2002-02-15 | 2005-11-10 | Matti Huiku | Compensation of human variability in pulse oximetry |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6421549B1 (en) * | 1999-07-14 | 2002-07-16 | Providence Health System-Oregon | Adaptive calibration pulsed oximetry method and device |
US6711425B1 (en) * | 2002-05-28 | 2004-03-23 | Ob Scientific, Inc. | Pulse oximeter with calibration stabilization |
-
2006
- 2006-09-27 EP EP06804239A patent/EP2073694A4/fr not_active Withdrawn
- 2006-09-27 WO PCT/US2006/037914 patent/WO2008039195A1/fr active Application Filing
- 2006-09-27 JP JP2009530316A patent/JP2010504803A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050250998A1 (en) * | 2002-02-15 | 2005-11-10 | Matti Huiku | Compensation of human variability in pulse oximetry |
US20050197549A1 (en) * | 2004-03-08 | 2005-09-08 | Nellcor Puritan Bennett Incorporated | Selection of ensemble averaging weights for a pulse oximeter based on signal quality metrics |
Non-Patent Citations (1)
Title |
---|
See also references of WO2008039195A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008039195A1 (fr) | 2008-04-03 |
JP2010504803A (ja) | 2010-02-18 |
EP2073694A4 (fr) | 2010-12-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7184809B1 (en) | Pulse amplitude indexing method and apparatus | |
EP2073694A1 (fr) | Procédé et appareil pour indexer une amplitude de pouls | |
US7215987B1 (en) | Method and apparatus for processing signals reflecting physiological characteristics | |
US20070260132A1 (en) | Method and apparatus for processing signals reflecting physiological characteristics from multiple sensors | |
US6178343B1 (en) | Pulse rate and heart rate coincidence detection for pulse oximetry | |
US5766127A (en) | Method and apparatus for improved photoplethysmographic perfusion-index monitoring | |
US8385995B2 (en) | Physiological parameter tracking system | |
US6711425B1 (en) | Pulse oximeter with calibration stabilization | |
US5193543A (en) | Method and apparatus for measuring arterial blood constituents | |
US9351674B2 (en) | Method for enhancing pulse oximetry calculations in the presence of correlated artifacts | |
US6896661B2 (en) | Monitoring physiological parameters based on variations in a photoplethysmographic baseline signal | |
EP0335357B1 (fr) | Méthode améliorée et appareil pour détecter des impulsions optiques | |
US5615672A (en) | Self-emission noninvasive infrared spectrophotometer with body temperature compensation | |
US8109882B2 (en) | System and method for venous pulsation detection using near infrared wavelengths | |
JP2003505115A (ja) | デジタル型オキシメータおよび酸素化レベルの算出方法 | |
WO2011060220A1 (fr) | Systèmes et procédés pour capteurs physiologiques combinés | |
US20110082357A1 (en) | Method and apparatus for co2 evaluation | |
CN209899402U (zh) | 反射式血氧仪 | |
US20100249551A1 (en) | System And Method For Generating Corrective Actions Correlated To Medical Sensor Errors | |
WO2008039187A1 (fr) | procédé et appareil pour traiter des signaux reflétant des caractéristiques physiologiques | |
US20090030296A1 (en) | Predictive oximetry model and method | |
US20140187884A1 (en) | Systems and methods for ensemble averaging in pulse oximetry | |
WO2009088799A1 (fr) | Procédé et appareil permettant d'évaluer le contact d'un capteur avec un tissu artérialisé | |
CN115089171A (zh) | 一种增强深肤色人群血氧测量结果准确性的方法及装置 | |
EP4337095A1 (fr) | Procédé et appareil de mesure non invasive de l'hémoglobine sanguine circulatoire en tenant compte des facteurs de confusion hémodynamiques |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20090424 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20101105 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20110401 |