ATE383106T1 - Digitale demodulationsvorrichtung und -verfahren zur messung der elektrischen bioimpedanz oder bioadmittanz - Google Patents
Digitale demodulationsvorrichtung und -verfahren zur messung der elektrischen bioimpedanz oder bioadmittanzInfo
- Publication number
- ATE383106T1 ATE383106T1 AT05017871T AT05017871T ATE383106T1 AT E383106 T1 ATE383106 T1 AT E383106T1 AT 05017871 T AT05017871 T AT 05017871T AT 05017871 T AT05017871 T AT 05017871T AT E383106 T1 ATE383106 T1 AT E383106T1
- Authority
- AT
- Austria
- Prior art keywords
- excitation signal
- bioadmittance
- bioimpedance
- signal
- waveforms
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0535—Impedance plethysmography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/0809—Detecting, measuring or recording devices for evaluating the respiratory organs by impedance pneumography
-
- 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
- A61B5/7228—Signal modulation applied to the input signal sent to patient or subject; demodulation to recover the physiological signal
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05017871A EP1754441B1 (de) | 2005-08-17 | 2005-08-17 | Digitale Demodulationsvorrichtung und -verfahren zur Messung der elektrischen Bioimpedanz oder Bioadmittanz |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE383106T1 true ATE383106T1 (de) | 2008-01-15 |
Family
ID=35058271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT05017871T ATE383106T1 (de) | 2005-08-17 | 2005-08-17 | Digitale demodulationsvorrichtung und -verfahren zur messung der elektrischen bioimpedanz oder bioadmittanz |
Country Status (4)
Country | Link |
---|---|
US (3) | US20070043303A1 (de) |
EP (1) | EP1754441B1 (de) |
AT (1) | ATE383106T1 (de) |
DE (1) | DE602005004282T2 (de) |
Families Citing this family (70)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPQ113799A0 (en) | 1999-06-22 | 1999-07-15 | University Of Queensland, The | A method and device for measuring lymphoedema |
EP1390311B1 (de) * | 2001-05-30 | 2011-03-09 | Prysmian S.p.A. | Verfahren und brenner zum herstellen einer glasvorform für optische fasern durch abscheidung aus der dampfphase |
US7822470B2 (en) | 2001-10-11 | 2010-10-26 | Osypka Medical Gmbh | Method for determining the left-ventricular ejection time TLVE of a heart of a subject |
DE10332820B4 (de) * | 2003-07-18 | 2006-07-20 | Osypka Medical Gmbh | Vorrichtung zum potentialgetrennten Umwandeln einer ersten Spannung in eine zweite Spannung zum Messen von Impedanzen und Admittanzen an biologischen Geweben |
US7351208B2 (en) * | 2004-03-12 | 2008-04-01 | Ge Medical Systems Information Technologies, Inc. | Respiration monitoring system and method |
JP4848369B2 (ja) | 2004-06-18 | 2011-12-28 | インぺディメッド リミテッド | 浮腫検出のための装置と該動作方法 |
WO2006056074A1 (en) | 2004-11-26 | 2006-06-01 | Z-Tech (Canada) Inc. | Weighted gradient method and system for diagnosing disease |
EP1898784B1 (de) * | 2005-07-01 | 2016-05-18 | Impedimed Limited | Verfahren und vorrichtung für impedanzmessungen |
WO2007002991A1 (en) | 2005-07-01 | 2007-01-11 | Impedimed Limited | Monitoring system |
EP1912563B1 (de) * | 2005-08-02 | 2016-04-20 | Impedimed Limited | Impedanzparameter-werte |
EP1754441B1 (de) | 2005-08-17 | 2008-01-09 | Osypka Medical GmbH | Digitale Demodulationsvorrichtung und -verfahren zur Messung der elektrischen Bioimpedanz oder Bioadmittanz |
ES2476999T3 (es) | 2005-10-11 | 2014-07-15 | Impedimed Limited | Monitorización del estado de hidratación |
US8773151B2 (en) * | 2006-04-24 | 2014-07-08 | Oü Eliko Tehnoloogia Arenduskeskus | Method and device for multichannel multifrequency analysis of an object |
EP2020918B1 (de) | 2006-05-30 | 2015-05-20 | Impedimed Limited | Impedanzmessungen |
CA2670293C (en) | 2006-11-30 | 2017-01-03 | Impedimed Limited | Measurement apparatus |
JP5400618B2 (ja) * | 2007-01-15 | 2014-01-29 | インぺディメッド リミテッド | モニタリングシステム |
JP5101685B2 (ja) * | 2007-03-30 | 2012-12-19 | インぺディメッド リミテッド | 補償レベルを可変制御して抵抗性信号および容量性信号の負荷を低減するための動作保護回路 |
JP5419861B2 (ja) | 2007-04-20 | 2014-02-19 | インぺディメッド リミテッド | インピーダンス測定装置および方法 |
WO2009036313A1 (en) | 2007-09-14 | 2009-03-19 | Corventis, Inc. | Adherent device with multiple physiological sensors |
US20090076343A1 (en) | 2007-09-14 | 2009-03-19 | Corventis, Inc. | Energy Management for Adherent Patient Monitor |
US8684925B2 (en) | 2007-09-14 | 2014-04-01 | Corventis, Inc. | Injectable device for physiological monitoring |
US8374688B2 (en) | 2007-09-14 | 2013-02-12 | Corventis, Inc. | System and methods for wireless body fluid monitoring |
EP2200512A1 (de) | 2007-09-14 | 2010-06-30 | Corventis, Inc. | Haftende vorrichtung zur überwachung der atmung und atmungsstörungen im schlaf |
WO2009036348A1 (en) | 2007-09-14 | 2009-03-19 | Corventis, Inc. | Medical device automatic start-up upon contact to patient tissue |
EP3922171A1 (de) | 2007-09-14 | 2021-12-15 | Medtronic Monitoring, Inc. | Adhärenter herzmonitor mit verbesserten sensorfähigkeiten |
WO2009059351A1 (en) * | 2007-11-05 | 2009-05-14 | Impedimed Limited | Impedance determination |
AU2008207672B2 (en) * | 2008-02-15 | 2013-10-31 | Impedimed Limited | Impedance Analysis |
WO2009114548A1 (en) | 2008-03-12 | 2009-09-17 | Corventis, Inc. | Heart failure decompensation prediction based on cardiac rhythm |
US8412317B2 (en) | 2008-04-18 | 2013-04-02 | Corventis, Inc. | Method and apparatus to measure bioelectric impedance of patient tissue |
JP5616900B2 (ja) | 2008-11-28 | 2014-10-29 | インぺディメッド リミテッドImpedimed Limited | インピーダンス測定処理 |
DE102009031232A1 (de) | 2009-06-26 | 2010-12-30 | Universitätsklinikum Jena | Verfahren und Vorrichtung zur transthorakalen, transösophagealen und intrakardialen Impedanzkardiographie, insbesondere für die Stimulation und Ablation des Herzens |
US8862210B2 (en) | 2009-09-14 | 2014-10-14 | Imec | Analogue signal processors |
EP2294979B1 (de) * | 2009-09-14 | 2013-12-18 | Imec | Verfahren und elektronisches medizinisches Gerät für simultane Messung sowie Impedanz und Biopotenzialsignal |
EP2294978B1 (de) | 2009-09-14 | 2013-09-04 | Imec | Adaptive Probenentnahme eines Elektrokardiogramms |
EP2305112A1 (de) * | 2009-10-01 | 2011-04-06 | seca ag | Bioimpedanzmessvorrichtung |
AU2010312305B2 (en) | 2009-10-26 | 2014-01-16 | Impedimed Limited | Fluid level indicator determination |
WO2011060497A1 (en) | 2009-11-18 | 2011-05-26 | Impedimed Limited | Signal distribution for patient-electrode measurements |
US9451897B2 (en) | 2009-12-14 | 2016-09-27 | Medtronic Monitoring, Inc. | Body adherent patch with electronics for physiologic monitoring |
US20130131551A1 (en) * | 2010-03-24 | 2013-05-23 | Shriram Raghunathan | Methods and devices for diagnosing and treating vocal cord dysfunction |
US8965498B2 (en) | 2010-04-05 | 2015-02-24 | Corventis, Inc. | Method and apparatus for personalized physiologic parameters |
IT1402690B1 (it) | 2010-10-26 | 2013-09-13 | St Microelectronics Srl | "metodo e relativo dispositivo per rilevare ampiezza e fase di un segnale elettrico" |
MX343282B (es) | 2011-06-27 | 2016-10-31 | Trilithic Inc | Metodo para detectar fugas en sistemas digitalmente modulados. |
AU2012351988B2 (en) | 2011-12-14 | 2017-05-04 | Impedimed Limited | Devices, systems and methods for determining the relative spatial change in subsurface resistivities across frequencies in tissue |
PL398277A1 (pl) * | 2012-02-29 | 2013-09-02 | Bone Vitae Spólka Akcyjna | Sposób sterowania elektrodami do pomiaru bioimpedancyjnych i urzadzenie do pomiarów bioimpedancyjnych |
KR102255204B1 (ko) | 2013-08-28 | 2021-05-24 | 삼성전자주식회사 | 재구성 가능한 측정 장치 및 그 장치를 제어하는 방법 |
US9651592B2 (en) * | 2013-12-03 | 2017-05-16 | Rockwell Automation Technologies, Inc. | Impedance detector apparatus and method |
KR101987408B1 (ko) * | 2014-01-21 | 2019-06-11 | 삼성전자주식회사 | 생체 임피던스 측정 장치 및 방법 |
JP2017514597A (ja) * | 2014-05-09 | 2017-06-08 | ボストン サイエンティフィック サイムド,インコーポレイテッドBoston Scientific Scimed,Inc. | 心臓組織をマッピングする医療用デバイス |
TWI563972B (zh) * | 2014-06-11 | 2017-01-01 | 國立成功大學 | 信號處理系統及方法與生物阻抗檢測裝置及元件 |
CN104483554B (zh) * | 2014-12-31 | 2023-07-04 | 思澜科技(成都)有限公司 | 用于生物电阻抗测量的数字相位解调方法及其系统 |
US20170150902A1 (en) * | 2015-11-30 | 2017-06-01 | Draeger Medical Systems, Inc. | Systems and methods for measuring respiration rate |
US10739433B2 (en) * | 2016-03-21 | 2020-08-11 | Texas Instruments Incorporated | Calibrating body impedance measurement systems |
US10912481B2 (en) * | 2016-08-10 | 2021-02-09 | Koninklijke Philips N.V. | Bioimpedance measurement system calibration |
US10401465B2 (en) * | 2016-12-15 | 2019-09-03 | Stmicroelectronics S.R.L. | Compensation and calibration for a low power bio-impedance measurement device |
EP3881788B1 (de) * | 2017-10-24 | 2022-11-16 | St. Jude Medical, Cardiology Division, Inc. | System zur bestimmung eines kontaktstatus zwischen einem medizinischen gerät und gewebe |
US10993672B2 (en) * | 2017-12-31 | 2021-05-04 | Msheaf Health Management Technologies Limited | Non-invasive method and system to extract characteristic information of bio-tissues |
US10966668B2 (en) * | 2017-12-31 | 2021-04-06 | Msheaf Health Management Technologies Limited | Method and apparatus to measure bodily fluid and its change, and blood volume change |
CN110432903A (zh) * | 2018-04-06 | 2019-11-12 | 麦层移动健康管理有限公司 | 一种用于提取生物组织特征信息的非侵入性方法及其系统 |
JP2019208843A (ja) * | 2018-06-04 | 2019-12-12 | ラピスセミコンダクタ株式会社 | 半導体装置、計測システム、および計測方法 |
CN109363674B (zh) * | 2018-08-22 | 2020-07-17 | 西安电子科技大学 | 一种生物阻抗测量系统 |
CN111200573B (zh) * | 2018-11-16 | 2022-02-22 | 迈普通信技术股份有限公司 | 一种rpc请求调用方法及装置 |
EP3941346A1 (de) * | 2019-03-19 | 2022-01-26 | Smith & Nephew plc | Systeme und verfahren zur messung der gewebeimpedanz |
US11185246B2 (en) * | 2019-08-23 | 2021-11-30 | Aura Devices, Inc. | Smart watch strap for bioimpedance measurements |
CN113796847B (zh) * | 2020-05-29 | 2023-09-19 | 纮康科技股份有限公司 | 具有校正功能的交流阻抗测量电路 |
US11272854B1 (en) | 2020-09-02 | 2022-03-15 | Analog Devices International Unlimited Company | Noise cancellation in impedance measurement circuits |
CN114199947A (zh) * | 2021-11-29 | 2022-03-18 | 中山大学 | 一种基于多频正弦的快速高精度电化学阻抗谱测量系统及测量方法 |
EE202200004A (et) * | 2022-03-29 | 2023-11-15 | Tallinna Tehnikaülikool | Impedantskardiograafia seade |
CN115363557B (zh) * | 2022-08-26 | 2023-10-03 | 上海交通大学 | 基于任意波形与数字相敏解调的多频电阻抗测量方法 |
CN115841064B (zh) * | 2023-02-27 | 2023-05-09 | 北京华睿博视医学影像技术有限公司 | 用于测试电阻抗成像系统性能的仿体及其阻值确定方法 |
CN117243585B (zh) * | 2023-11-10 | 2024-04-16 | 深圳市奋达智能技术有限公司 | 无创心排量测量方法、系统、计算机设备及存储介质 |
Family Cites Families (77)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US237874A (en) * | 1881-02-15 | Packing-case | ||
US1908688A (en) * | 1929-06-06 | 1933-05-16 | Gen Electric X Ray Corp | Electrotherapeutic apparatus |
GB618405A (en) | 1939-05-10 | 1949-02-22 | Laszlo Rosa M D | Improvements in or relating to electrical devices for testing the functions of living bodies |
US2327874A (en) | 1942-04-16 | 1943-08-24 | Modern Inv S Corp | Portable electromedical apparatus |
US3284724A (en) * | 1963-10-14 | 1966-11-08 | Robertshaw Controls Co | Oscillator with feedback bias amplitude stabilization |
US3340867A (en) | 1964-08-19 | 1967-09-12 | Univ Minnesota | Impedance plethysmograph |
US3402572A (en) * | 1966-12-22 | 1968-09-24 | Koppers Co Inc | Electrically insulated mechanical connector |
US3601126A (en) * | 1969-01-08 | 1971-08-24 | Electro Medical Systems Inc | High frequency electrosurgical apparatus |
USRE30750E (en) * | 1972-05-15 | 1981-09-29 | Cardiac Resuscitator Corporation | Cardiac resuscitator and monitoring apparatus |
US3971365A (en) * | 1973-02-12 | 1976-07-27 | Beckman Instruments, Inc. | Bioelectrical impedance measuring system |
US4057736A (en) * | 1974-09-13 | 1977-11-08 | Jeppson Morris R | Electrical power generation and distribution system |
US4001554A (en) * | 1975-10-29 | 1977-01-04 | The United States Of America As Represented By The Secretary Of The Army | Mode control computer interface |
US4207772A (en) * | 1977-07-11 | 1980-06-17 | Mediscan, Inc. | Electronic drive system and technique for ultrasonic transducer |
US4168459A (en) * | 1977-10-25 | 1979-09-18 | Precise Power Corporation | Non-interruptible power supply systems |
US4289142A (en) * | 1978-11-24 | 1981-09-15 | Kearns Kenneth L | Physiological occurrence, such as apnea, monitor and X-ray triggering device |
US4387722A (en) * | 1978-11-24 | 1983-06-14 | Kearns Kenneth L | Respiration monitor and x-ray triggering apparatus |
US4354501A (en) * | 1979-08-28 | 1982-10-19 | Univ Washington | Esophageal catheter including ultrasonic transducer for use in detection of air emboli |
US4562843A (en) * | 1980-09-29 | 1986-01-07 | Ljubomir Djordjevich | System for determining characteristics of blood flow |
US4416277A (en) * | 1981-11-03 | 1983-11-22 | Valleylab, Inc. | Return electrode monitoring system for use during electrosurgical activation |
FR2524996B1 (fr) * | 1982-04-07 | 1985-08-16 | Breton Jacques | Source de courants regules/generateur de tensions asservies |
US4450527A (en) | 1982-06-29 | 1984-05-22 | Bomed Medical Mfg. Ltd. | Noninvasive continuous cardiac output monitor |
US4509526A (en) * | 1983-02-08 | 1985-04-09 | Lawrence Medical Systems, Inc. | Method and system for non-invasive ultrasound Doppler cardiac output measurement |
GB8431500D0 (en) * | 1984-12-13 | 1985-01-23 | Antec Systems | Measurement of thoracic impedances |
US4858614A (en) * | 1986-04-29 | 1989-08-22 | Stevens Jerry D | Methods of and apparatus for positioning and aiming an ultrasonic probe |
JPS62266039A (ja) * | 1986-05-14 | 1987-11-18 | 株式会社東芝 | 超音波診断装置 |
US4836214A (en) | 1986-12-01 | 1989-06-06 | Bomed Medical Manufacturing, Ltd. | Esophageal electrode array for electrical bioimpedance measurement |
US4807638A (en) * | 1987-10-21 | 1989-02-28 | Bomed Medical Manufacturing, Ltd. | Noninvasive continuous mean arterial blood prssure monitor |
US5052395A (en) * | 1987-11-16 | 1991-10-01 | Waters Instruments, Inc. | Non-invasive ultrasonic pulse doppler cardiac output monitor |
US5178151A (en) | 1988-04-20 | 1993-01-12 | Sackner Marvin A | System for non-invasive detection of changes of cardiac volumes and aortic pulses |
US5103828A (en) * | 1988-07-14 | 1992-04-14 | Bomed Medical Manufacturing, Ltd. | System for therapeutic management of hemodynamic state of patient |
GB9013177D0 (en) | 1990-06-13 | 1990-08-01 | Brown Brian H | Real-time imaging, etc. |
US5178154A (en) * | 1990-09-18 | 1993-01-12 | Sorba Medical Systems, Inc. | Impedance cardiograph and method of operation utilizing peak aligned ensemble averaging |
US5642734A (en) * | 1990-10-04 | 1997-07-01 | Microcor, Inc. | Method and apparatus for noninvasively determining hematocrit |
EP0480078A1 (de) | 1990-10-08 | 1992-04-15 | Siemens Aktiengesellschaft | Messvorrichtung mit nichtelektrischer Signal- und Energieübertragung |
US5241964A (en) * | 1990-10-31 | 1993-09-07 | Medwave, Incorporated | Noninvasive, non-occlusive method and apparatus which provides a continuous indication of arterial pressure and a beat-by-beat characterization of the arterial system |
US5211177A (en) * | 1990-12-28 | 1993-05-18 | Regents Of The University Of Minnesota | Vascular impedance measurement instrument |
US5188106A (en) * | 1991-03-08 | 1993-02-23 | Telectronics Pacing Systems, Inc. | Method and apparatus for chronically monitoring the hemodynamic state of a patient using doppler ultrasound |
US5280429A (en) | 1991-04-30 | 1994-01-18 | Xitron Technologies | Method and apparatus for displaying multi-frequency bio-impedance |
US5423326A (en) * | 1991-09-12 | 1995-06-13 | Drexel University | Apparatus and method for measuring cardiac output |
US5309917A (en) * | 1991-09-12 | 1994-05-10 | Drexel University | System and method of impedance cardiography and heartbeat determination |
IL102300A (en) * | 1992-06-24 | 1996-07-23 | N I Medical Ltd | Non-invasive system for determining of the main cardiorespiratory parameters of the human body |
US5505209A (en) * | 1994-07-07 | 1996-04-09 | Reining International, Ltd. | Impedance cardiograph apparatus and method |
US5503157A (en) * | 1995-03-17 | 1996-04-02 | Sramek; Bohumir | System for detection of electrical bioimpedance signals |
DE19533663A1 (de) * | 1995-09-12 | 1997-03-13 | Heinemann & Gregori Gmbh | Verfahren und Vorrichtung zur Herzzeitvolumenbestimmung |
DE19609382A1 (de) * | 1996-03-04 | 1997-09-11 | Biotronik Mess & Therapieg | Aktivitätsgesteuerter Herzschrittmacher |
US20030206021A1 (en) * | 1997-07-25 | 2003-11-06 | Laletin William H. | Method and apparatus for measuring and analyzing electrical or electrochemical systems |
US5685316A (en) * | 1996-04-08 | 1997-11-11 | Rheo-Graphic Pte Ltd. | Non-invasive monitoring of hemodynamic parameters using impedance cardiography |
US6058325A (en) * | 1996-04-16 | 2000-05-02 | Cardiotronics | Method and apparatus for high current electrode, transthoracic and transmyocardial impedance estimation |
US6016445A (en) * | 1996-04-16 | 2000-01-18 | Cardiotronics | Method and apparatus for electrode and transthoracic impedance estimation |
US5782774A (en) * | 1996-04-17 | 1998-07-21 | Imagyn Medical Technologies California, Inc. | Apparatus and method of bioelectrical impedance analysis of blood flow |
US5791349A (en) * | 1996-04-17 | 1998-08-11 | Urohealth, Inc. | Apparatus and method of bioelectrical impedance analysis of blood flow |
US6198972B1 (en) * | 1997-04-30 | 2001-03-06 | Medtronic, Inc. | Control of externally induced current in implantable medical devices |
AU742481B2 (en) * | 1997-06-12 | 2002-01-03 | Donald D. Hickey | Noninvasive monitoring of cardiac performance |
US6490474B1 (en) * | 1997-08-01 | 2002-12-03 | Cardiac Pathways Corporation | System and method for electrode localization using ultrasound |
WO1999035968A1 (en) * | 1998-01-13 | 1999-07-22 | Urometrics, Inc. | Devices and methods for monitoring female arousal |
WO2000001301A1 (en) * | 1998-07-06 | 2000-01-13 | Pastor, Aleksander | Apparatus for evaluation of skin impedance variations |
WO2000015110A1 (en) * | 1998-09-11 | 2000-03-23 | Res Technologies Llc | Measurement of electric and/or magnetic properties in organisms using induced currents |
US6186955B1 (en) * | 1998-11-16 | 2001-02-13 | Gail D. Baura | Noninvasive continuous cardiac output monitor |
US6316518B1 (en) * | 1999-02-05 | 2001-11-13 | Advanced Polymer Technology, Inc. | Methods of treating polymeric materials, methods of forming nylon, and apparatuses |
US6494832B1 (en) * | 1999-03-09 | 2002-12-17 | Conductance Technologies, Inc. | Multifrequency conductance catheter-based system and method to determine LV function in a patient |
DE19914437A1 (de) | 1999-03-30 | 2000-10-05 | Hans Karl Seifert | Mathematische Formel zur Berechnung des Herzschlagvolumens aus der DELTA Z - Kurve des Impedanzkardiogramms |
JP2000333911A (ja) * | 1999-05-25 | 2000-12-05 | Nippon Colin Co Ltd | 心機能監視装置 |
JP2001008452A (ja) * | 1999-06-21 | 2001-01-12 | Sony Corp | 電源装置 |
US6442422B1 (en) * | 1999-08-11 | 2002-08-27 | Ge Medical Systems Information Technologies, Inc. | Compliance monitoring apparatus and method |
US6275012B1 (en) * | 1999-12-16 | 2001-08-14 | C.E. Niehoff & Co. | Alternator with regulation of multiple voltage outputs |
US6404089B1 (en) * | 2000-07-21 | 2002-06-11 | Mark R. Tomion | Electrodynamic field generator |
US6641520B2 (en) * | 2001-01-29 | 2003-11-04 | Electro Magnetic Resources Corp. | Magnetic field generator for therapeutic applications |
US6511438B2 (en) * | 2001-04-03 | 2003-01-28 | Osypka Medical Gmbh | Apparatus and method for determining an approximation of the stroke volume and the cardiac output of the heart |
DE10125359B4 (de) * | 2001-05-23 | 2005-07-28 | Osypka Medical Gmbh | Wechselstromquelle zur Erzeugung eines durch den Körper zu sendenden Wechselstroms und Verfahren zur Erzeugung eines stabilen Wechselstroms |
US20030052564A1 (en) * | 2001-07-09 | 2003-03-20 | Doris Wilsdorf | Bipolar machines-a new class of homopolar motor/generator |
US7186219B2 (en) * | 2001-10-11 | 2007-03-06 | Osypka Medical Gmbh | Calibration of a doppler velocimeter for stroke volume determination |
US7822470B2 (en) * | 2001-10-11 | 2010-10-26 | Osypka Medical Gmbh | Method for determining the left-ventricular ejection time TLVE of a heart of a subject |
EP1565105A4 (de) * | 2002-11-22 | 2009-04-01 | Impedimed Ltd | Mehrfrequenz-bioimpedanz-bestimmung |
EP1571981A2 (de) * | 2002-11-27 | 2005-09-14 | Z-Tech (Canada) Inc. | Eliminierung von artefakten in bioimpedanzmessungen |
US20040143297A1 (en) * | 2003-01-21 | 2004-07-22 | Maynard Ramsey | Advanced automatic external defibrillator powered by alternative and optionally multiple electrical power sources and a new business method for single use AED distribution and refurbishment |
DE10332820B4 (de) * | 2003-07-18 | 2006-07-20 | Osypka Medical Gmbh | Vorrichtung zum potentialgetrennten Umwandeln einer ersten Spannung in eine zweite Spannung zum Messen von Impedanzen und Admittanzen an biologischen Geweben |
EP1754441B1 (de) | 2005-08-17 | 2008-01-09 | Osypka Medical GmbH | Digitale Demodulationsvorrichtung und -verfahren zur Messung der elektrischen Bioimpedanz oder Bioadmittanz |
-
2005
- 2005-08-17 EP EP05017871A patent/EP1754441B1/de not_active Not-in-force
- 2005-08-17 DE DE602005004282T patent/DE602005004282T2/de active Active
- 2005-08-17 AT AT05017871T patent/ATE383106T1/de active
-
2006
- 2006-08-17 US US11/506,369 patent/US20070043303A1/en not_active Abandoned
-
2013
- 2013-11-26 US US14/091,032 patent/US10470718B2/en active Active
-
2019
- 2019-11-12 US US16/680,597 patent/US11642088B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20140088902A1 (en) | 2014-03-27 |
US10470718B2 (en) | 2019-11-12 |
EP1754441B1 (de) | 2008-01-09 |
DE602005004282T2 (de) | 2008-11-27 |
US11642088B2 (en) | 2023-05-09 |
EP1754441A1 (de) | 2007-02-21 |
DE602005004282D1 (de) | 2008-02-21 |
US20200113523A1 (en) | 2020-04-16 |
US20070043303A1 (en) | 2007-02-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE383106T1 (de) | Digitale demodulationsvorrichtung und -verfahren zur messung der elektrischen bioimpedanz oder bioadmittanz | |
DE3676337D1 (de) | Digitale schaltung fuer einen durchflussmesser und verfahren zur durchflussmessung. | |
CA2553570A1 (en) | Method and apparatus for measuring jitter | |
ATE419786T1 (de) | Gerät und verfahren zur messung von hämodynamischen parametern | |
GB2450463A (en) | Fractional sampling of electrical energy | |
ATE462350T1 (de) | Verfahren und gerät zur laufenden überwachung der konzentration eines analyten | |
WO2010118091A3 (en) | Line noise analysis and detection and measurement error reduction | |
RU2011147162A (ru) | Способ обнаружения структурного дефекта в механическом узле, содержащем вращающийся элемент | |
DE60335573D1 (de) | Verfahren und vorrichtung zur messung der elektrischen bioimpedanz | |
CN108594147B (zh) | 一种模拟信号和数字信号同步采集及同步时间差校准方法 | |
CN103983849A (zh) | 一种实时高精度的电力谐波分析方法 | |
CN105866234B (zh) | 电涡流和巴克豪森相融合的铁磁材料无损检测仪器和方法 | |
KR880009276A (ko) | 고정도 위치 및 속도 검출 장치 | |
US20070100570A1 (en) | Dual sine-wave time stamp method and apparatus | |
JP2006220629A (ja) | 蓄電池の内部インピーダンス測定装置および蓄電池の内部インピーダンス測定方法 | |
CN108592977B (zh) | 动态校准模拟信号和数字信号同步采集分析方法及系统 | |
ATE494832T1 (de) | Ekg-system und verfahren zur grossflächigen messung von ekg-signalen | |
US6469492B1 (en) | Precision RMS measurement | |
EP2690448A3 (de) | System zur Verbesserung der Wahrscheinlichkeit der Erkennung transienter Ereignisse | |
RU2334254C1 (ru) | Устройство для электромагнитного зондирования земной коры | |
RU2363005C1 (ru) | Способ спектрального анализа полигармонических сигналов и устройство для его реализации | |
JP2005098842A5 (de) | ||
CN108036841B (zh) | 可调节误差质量流量计的测试装置及测试方法 | |
CN100483138C (zh) | 单周期波形检测分析方法及系统 | |
CN108037352B (zh) | 一种提高电能测量准确度的方法和系统 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification |
Ref document number: 1754441 Country of ref document: EP |