ES2239775T3 - Sistema para estimar salidas cardiacas. - Google Patents
Sistema para estimar salidas cardiacas.Info
- Publication number
- ES2239775T3 ES2239775T3 ES96937752T ES96937752T ES2239775T3 ES 2239775 T3 ES2239775 T3 ES 2239775T3 ES 96937752 T ES96937752 T ES 96937752T ES 96937752 T ES96937752 T ES 96937752T ES 2239775 T3 ES2239775 T3 ES 2239775T3
- Authority
- ES
- Spain
- Prior art keywords
- estimator
- trend
- indicator
- signal
- local
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—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
- A61B5/028—Measuring blood flow using tracers, e.g. dye dilution by thermo-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
-
- 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
- A61B5/7235—Details of waveform analysis
- A61B5/7253—Details of waveform analysis characterised by using transforms
- A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Cardiology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physiology (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)
- Electrotherapy Devices (AREA)
Abstract
EL GASTO CARDIACO (GC) SE CALCULA POR SEPARADO EN UN ESTIMADOR LOCAL (118) Y EN UN ESTIMADOR DE TENDENCIAS (120) PARA PROPORCIONAR VALORES DE GC. SE INYECTA UN INDICADOR TERMICO PREFERENTEMENTE DE ACUERDO CON UN PERFIL SEUDOALEATORIO DE SEÑALES DE SECUENCIA BINARIA (X(T)) EN UNA POSICION SUPERIOR DE LA CORRIENTE SANGUINEA DE UNA REGION DE FLUJO SANGUINEO DEL ORGANISMO DE UN PACIENTE, DETECTANDOSE COMO UNA SEÑAL DE SALIDA DE UN INDICADOR (108) (Y(T)) EN UNA POSICION INFERIOR DE LA CORRIENTE SANGUINEA. SE ELIMINA PREFERENTEMENTE EL RUIDO DE BAJA FRECUENCIA DE LA SEÑAL DE SALIDA DEL INDICADOR DETECTADA. LAS ESTIMACIONES LOCALES Y DE TENDENCIAS SE BASAN EN LOS VALORES MEDIDOS DE LA FUNCION DE TRANSFERENCIA FRECUENCIA - DOMINIO ENTRE LA SEÑAL DETECTADA Y LA SEÑAL DE ENTRADA DEL INDICADOR EN RELACION CON UN MODELO PREDETERMINADO DE FUNCION DE TRANSFERENCIA, QUE PREFERENTEMENTE ES UN MODELO NORMAL AISLADO DEL CALOR. EL ESTIMADOR DE TENDENCIAS ES PREFERENTEMENTE UN FILTRO KALMAN. EL ESTIMADOR LOCALGENERA PREFERENTEMENTE SU ESTIMACION A PARTIR DE UNA OPTIMACION NO REPETITIVA DE UNA FUNCION DE COSTES. EL ESTIMADOR LOCAL PROPORCIONA PREFERENTEMENTE VALORES INICIALES PARA INICIAR LA ACTIVIDAD DEL ESTIMADOR DE TENDENCIAS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/548,937 US5687733A (en) | 1995-10-26 | 1995-10-26 | System and method for estimating cardiac output |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2239775T3 true ES2239775T3 (es) | 2005-10-01 |
Family
ID=24190994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES96937752T Expired - Lifetime ES2239775T3 (es) | 1995-10-26 | 1996-10-25 | Sistema para estimar salidas cardiacas. |
Country Status (10)
Country | Link |
---|---|
US (1) | US5687733A (es) |
EP (1) | EP0862379B1 (es) |
JP (2) | JPH11513910A (es) |
CN (1) | CN1130166C (es) |
AU (1) | AU699527B2 (es) |
CA (1) | CA2235615C (es) |
DE (1) | DE69634205T2 (es) |
ES (1) | ES2239775T3 (es) |
RU (1) | RU2214787C2 (es) |
WO (1) | WO1997015230A1 (es) |
Families Citing this family (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6045512A (en) * | 1998-06-09 | 2000-04-04 | Baxter International Inc. | System and method for continuous estimation and display of cardiac ejection fraction and end diastolic volume |
US6338713B1 (en) * | 1998-08-18 | 2002-01-15 | Aspect Medical Systems, Inc. | System and method for facilitating clinical decision making |
EP2085028A1 (en) * | 1998-11-09 | 2009-08-05 | Xinde Li | Processing low signal-to-noise ratio signals |
US6285909B1 (en) | 1999-05-27 | 2001-09-04 | Cardiac Pacemakers, Inc. | Preserving patient specific data in implantable pulse generator systems |
US6371923B1 (en) * | 1999-12-07 | 2002-04-16 | Edwards Lifesciences Corporation | Time-domain system and method for relaxation measurement and estimation of indicator dilution for continuous estimation and display of cardiac ejection fraction and end diastolic volume |
US6575905B2 (en) * | 2000-09-22 | 2003-06-10 | Knobbe, Lim & Buckingham | Method and apparatus for real-time estimation of physiological parameters |
US6895352B2 (en) * | 2002-03-12 | 2005-05-17 | Itt Manufacturing Enterprises, Inc. | Simultaneous rapid open and closed loop bode plot measurement using a binary pseudo-random sequence |
US7131950B1 (en) * | 2002-09-23 | 2006-11-07 | E.P. Limited | System and method for noise reduction in thermodilution for cardiac measurement |
US7474985B1 (en) * | 2003-04-25 | 2009-01-06 | The United States Of America As Represented By The Secretary Of The Navy | Method and system for detecting changes in data |
US7452333B2 (en) * | 2003-12-05 | 2008-11-18 | Edwards Lifesciences Corporation | Arterial pressure-based, automatic determination of a cardiovascular parameter |
US7220230B2 (en) * | 2003-12-05 | 2007-05-22 | Edwards Lifesciences Corporation | Pressure-based system and method for determining cardiac stroke volume |
US7422562B2 (en) * | 2003-12-05 | 2008-09-09 | Edwards Lifesciences | Real-time measurement of ventricular stroke volume variations by continuous arterial pulse contour analysis |
US8396670B2 (en) | 2004-08-16 | 2013-03-12 | Venture Milling, Inc. | Process, system and method for improving the determination of digestive effects upon an ingestable substance |
US8282563B2 (en) * | 2004-11-18 | 2012-10-09 | Japan Health Sciences Foundation | Cardiac disease treatment system |
US7632235B1 (en) * | 2004-11-22 | 2009-12-15 | Pacesetter, Inc. | System and method for measuring cardiac output via thermal dilution using an implantable medical device with an external ultrasound power delivery system |
US7651466B2 (en) | 2005-04-13 | 2010-01-26 | Edwards Lifesciences Corporation | Pulse contour method and apparatus for continuous assessment of a cardiovascular parameter |
US7378649B2 (en) * | 2005-10-17 | 2008-05-27 | Varian, Inc. | Simplex optimization methods for instrumentation tuning |
US9104287B2 (en) * | 2005-10-27 | 2015-08-11 | International Business Machines Corporation | System and method for data collection interface creation and data collection administration |
US20070167864A1 (en) * | 2005-11-29 | 2007-07-19 | Lopez George A | Cardiac output measurement devices and methods |
US8014650B1 (en) * | 2006-01-24 | 2011-09-06 | Adobe Systems Incorporated | Feedback of out-of-range signals |
US7761150B2 (en) * | 2006-03-29 | 2010-07-20 | Medtronic, Inc. | Method and apparatus for detecting arrhythmias in a medical device |
US8905939B2 (en) | 2006-07-13 | 2014-12-09 | Edwards Lifesciences Corporation | Method and apparatus for continuous assessment of a cardiovascular parameter using the arterial pulse pressure propagation time and waveform |
ES2361134T1 (es) * | 2006-12-22 | 2011-06-14 | Pulsion Medical Systems Ag | Aparato de monitorización de pacientes para determinar un parámetro que representa un compartimiento de volumen intratorácico de un paciente. |
US20080242955A1 (en) * | 2007-03-30 | 2008-10-02 | Kimmo Uutela | Reliability in determination of clinical state of a subject |
US8262579B2 (en) * | 2007-05-16 | 2012-09-11 | Massachusetts Institute Of Technology | System and method for prediction and detection of circulatory shock |
WO2008144490A1 (en) * | 2007-05-16 | 2008-11-27 | Massachusetts Instutute Of Technology | Systems and methods for model-based estimation of cardiac ejection fraction, cardiac contractility, and ventricular end-diastolic volume |
WO2008144404A1 (en) * | 2007-05-16 | 2008-11-27 | Massachusetts Instutute Of Technology | Systems and methods for model-based estimation of cardiac output and total peripheral resistance |
US20090122853A1 (en) * | 2007-11-12 | 2009-05-14 | Acorn Technologies, Inc. | Channel tracking methods for subspace equalizers |
US20090270739A1 (en) * | 2008-01-30 | 2009-10-29 | Edwards Lifesciences Corporation | Real-time detection of vascular conditions of a subject using arterial pressure waveform analysis |
WO2009129158A1 (en) * | 2008-04-15 | 2009-10-22 | Massachusetts Institute Of Technology | Flow estimation |
EP2493373B1 (en) | 2009-10-29 | 2016-03-16 | CNSystems Medizintechnik AG | Apparatus and methods for enhancing and analyzing signals from a continuous non-invasive blood pressure measurement device |
CN102834047A (zh) | 2010-01-29 | 2012-12-19 | 爱德华兹生命科学公司 | 在心血管参数确定中不规则心动周期影响的排除 |
US9176671B1 (en) | 2011-04-06 | 2015-11-03 | P4tents1, LLC | Fetching data between thread execution in a flash/DRAM/embedded DRAM-equipped system |
US8930647B1 (en) | 2011-04-06 | 2015-01-06 | P4tents1, LLC | Multiple class memory systems |
US9170744B1 (en) | 2011-04-06 | 2015-10-27 | P4tents1, LLC | Computer program product for controlling a flash/DRAM/embedded DRAM-equipped system |
US9158546B1 (en) | 2011-04-06 | 2015-10-13 | P4tents1, LLC | Computer program product for fetching from a first physical memory between an execution of a plurality of threads associated with a second physical memory |
US9164679B2 (en) | 2011-04-06 | 2015-10-20 | Patents1, Llc | System, method and computer program product for multi-thread operation involving first memory of a first memory class and second memory of a second memory class |
US9417754B2 (en) | 2011-08-05 | 2016-08-16 | P4tents1, LLC | User interface system, method, and computer program product |
JP5880001B2 (ja) * | 2011-12-14 | 2016-03-08 | 富士通株式会社 | 覚醒度判定装置、覚醒度判定方法、及びプログラム |
US9775559B2 (en) | 2013-04-26 | 2017-10-03 | Medtronic, Inc. | Staged rhythm detection system and method |
EP3170447A1 (en) | 2013-07-08 | 2017-05-24 | Edwards Lifesciences Corporation | A method for determining a mechanical-respiration-induced variation in a cardiovascular parameter |
EP3113737A4 (en) * | 2014-03-07 | 2017-11-22 | ZOLL Circulation, Inc. | Endovascular heat exchange systems and methods with blood flow monitoring and notification functions |
US10376705B2 (en) | 2014-04-01 | 2019-08-13 | Medtronic, Inc. | Method and apparatus for discriminating tachycardia events in a medical device |
US9526908B2 (en) | 2014-04-01 | 2016-12-27 | Medtronic, Inc. | Method and apparatus for discriminating tachycardia events in a medical device |
US9808640B2 (en) | 2014-04-10 | 2017-11-07 | Medtronic, Inc. | Method and apparatus for discriminating tachycardia events in a medical device using two sensing vectors |
US9352165B2 (en) | 2014-04-17 | 2016-05-31 | Medtronic, Inc. | Method and apparatus for verifying discriminating of tachycardia events in a medical device having dual sensing vectors |
US10252067B2 (en) | 2014-04-24 | 2019-04-09 | Medtronic, Inc. | Method and apparatus for adjusting a blanking period during transitioning between operating states in a medical device |
US10278601B2 (en) | 2014-04-24 | 2019-05-07 | Medtronic, Inc. | Method and apparatus for selecting a sensing vector configuration in a medical device |
US9795312B2 (en) | 2014-04-24 | 2017-10-24 | Medtronic, Inc. | Method and apparatus for adjusting a blanking period for selecting a sensing vector configuration in a medical device |
US10244957B2 (en) | 2014-04-24 | 2019-04-02 | Medtronic, Inc. | Method and apparatus for selecting a sensing vector configuration in a medical device |
US9610025B2 (en) | 2014-07-01 | 2017-04-04 | Medtronic, Inc. | Method and apparatus for verifying discriminating of tachycardia events in a medical device having dual sensing vectors |
CN104493877A (zh) * | 2014-12-19 | 2015-04-08 | 苏州洛伊斯自动化科技有限公司 | 一种软管切割机的送料装置 |
US9561005B2 (en) | 2015-01-23 | 2017-02-07 | Medtronic, Inc. | Method and apparatus for beat acquisition during template generation in a medical device having dual sensing vectors |
US10188867B2 (en) | 2015-01-23 | 2019-01-29 | Medtronic, Inc. | Method and apparatus for beat acquisition during template generation in a medical device having dual sensing vectors |
DE102016001710B4 (de) * | 2016-02-15 | 2022-08-25 | Fresenius Medical Care Deutschland Gmbh | Gerät zur extrakorporalen Blutbehandlung mit einer Auswerte- und Steuereinheit |
US11614516B2 (en) * | 2020-02-19 | 2023-03-28 | Infineon Technologies Ag | Radar vital signal tracking using a Kalman filter |
US11585891B2 (en) | 2020-04-20 | 2023-02-21 | Infineon Technologies Ag | Radar-based vital sign estimation |
CN112560243B (zh) * | 2020-12-07 | 2022-11-15 | 桂林电子科技大学 | 一种改进频域临界采样图滤波器组的设计方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2402996A1 (fr) * | 1977-09-12 | 1979-04-06 | Labo Electronique Physique | Procede de realisation de bulles metalliques sur un substrat perce, substrat ainsi traite et utilisation |
US4507974A (en) * | 1983-04-21 | 1985-04-02 | The Board Of Trustees Of The Leland Stanford Jr. University | Method and apparatus for measuring flow |
US5146414A (en) * | 1990-04-18 | 1992-09-08 | Interflo Medical, Inc. | Method and apparatus for continuously measuring volumetric flow |
US5357967A (en) * | 1993-06-04 | 1994-10-25 | Baxter International Inc. | Method and apparatus for measuring flow using frequency-dispersive techniques |
US5363856A (en) * | 1993-08-13 | 1994-11-15 | Abbott Laboratories | Correcting thermal drift in cardiac output determination |
-
1995
- 1995-10-26 US US08/548,937 patent/US5687733A/en not_active Expired - Lifetime
-
1996
- 1996-10-25 CN CN96199068.6A patent/CN1130166C/zh not_active Expired - Lifetime
- 1996-10-25 DE DE69634205T patent/DE69634205T2/de not_active Expired - Lifetime
- 1996-10-25 RU RU98109892/14A patent/RU2214787C2/ru not_active IP Right Cessation
- 1996-10-25 ES ES96937752T patent/ES2239775T3/es not_active Expired - Lifetime
- 1996-10-25 AU AU75221/96A patent/AU699527B2/en not_active Expired
- 1996-10-25 WO PCT/US1996/017154 patent/WO1997015230A1/en active IP Right Grant
- 1996-10-25 JP JP9516814A patent/JPH11513910A/ja active Pending
- 1996-10-25 CA CA002235615A patent/CA2235615C/en not_active Expired - Lifetime
- 1996-10-25 EP EP96937752A patent/EP0862379B1/en not_active Expired - Lifetime
-
2003
- 2003-06-18 JP JP2003174129A patent/JP3701285B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1204241A (zh) | 1999-01-06 |
JPH11513910A (ja) | 1999-11-30 |
RU2214787C2 (ru) | 2003-10-27 |
AU699527B2 (en) | 1998-12-03 |
DE69634205D1 (de) | 2005-02-24 |
EP0862379B1 (en) | 2005-01-19 |
WO1997015230A1 (en) | 1997-05-01 |
JP3701285B2 (ja) | 2005-09-28 |
AU7522196A (en) | 1997-05-15 |
JP2004000653A (ja) | 2004-01-08 |
US5687733A (en) | 1997-11-18 |
CA2235615A1 (en) | 1997-05-01 |
CA2235615C (en) | 2001-05-08 |
DE69634205T2 (de) | 2005-07-07 |
CN1130166C (zh) | 2003-12-10 |
EP0862379A1 (en) | 1998-09-09 |
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