DE69505799T2 - Elektrische impedanz-tomographie - Google Patents
Elektrische impedanz-tomographieInfo
- Publication number
- DE69505799T2 DE69505799T2 DE69505799T DE69505799T DE69505799T2 DE 69505799 T2 DE69505799 T2 DE 69505799T2 DE 69505799 T DE69505799 T DE 69505799T DE 69505799 T DE69505799 T DE 69505799T DE 69505799 T2 DE69505799 T2 DE 69505799T2
- Authority
- DE
- Germany
- Prior art keywords
- electrical impedance
- impedance tomography
- tomography
- electrical
- impedance
- 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
- A61B5/05—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
- A61B5/0536—Impedance imaging, e.g. by tomography
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9404766A GB9404766D0 (en) | 1994-03-11 | 1994-03-11 | Electrical resistance tomography |
GB9405794A GB9405794D0 (en) | 1994-03-23 | 1994-03-23 | Electrical impedance tomography |
GB9424129A GB9424129D0 (en) | 1994-03-11 | 1994-11-25 | Electrical impedance tomography |
PCT/GB1995/000520 WO1995024155A1 (en) | 1994-03-11 | 1995-03-10 | Electrical impedance tomography |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69505799D1 DE69505799D1 (de) | 1998-12-10 |
DE69505799T2 true DE69505799T2 (de) | 1999-04-22 |
Family
ID=27267094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69505799T Expired - Lifetime DE69505799T2 (de) | 1994-03-11 | 1995-03-10 | Elektrische impedanz-tomographie |
Country Status (6)
Country | Link |
---|---|
US (1) | US5807251A (de) |
EP (1) | EP0749285B1 (de) |
JP (1) | JP3759606B2 (de) |
AU (1) | AU699170B2 (de) |
DE (1) | DE69505799T2 (de) |
WO (1) | WO1995024155A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011018505A1 (de) * | 2011-04-23 | 2012-10-25 | Dräger Medical GmbH | Vorrichtung und Verfahren zur Elektroimpedanztomographie |
DE102011108252A1 (de) * | 2011-07-22 | 2013-01-24 | Rheinisch-Westfälische Technische Hochschule Aachen | Verfahren und Vorrichtung zur Überwachung des Harnblasenfüllstandes eines Patienten |
Families Citing this family (71)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0647224B2 (ja) * | 1987-08-11 | 1994-06-22 | アミテック株式会社 | 矩形枠体用研削装置 |
GB9522060D0 (en) * | 1995-10-27 | 1996-01-03 | Williams Richard A | Characterisation of flowing dispersions |
CA2191285A1 (en) | 1996-11-26 | 1998-05-26 | Philip Maurice Church | Electrode arrangement for electrical impedance tomography system |
JP3125730B2 (ja) * | 1997-09-11 | 2001-01-22 | 憲一 山越 | 血行動態表示装置 |
CA2217603C (en) * | 1997-10-02 | 2003-12-23 | Alvin Wexler | Reconstruction system and methods for impedance imaging |
US6745070B2 (en) | 1997-10-03 | 2004-06-01 | Tasc Ltd. | High definition electrical impedance tomography |
WO1999052588A1 (en) * | 1998-04-14 | 1999-10-21 | Koninklijke Philips Electronics N.V. | Electro-stimulation apparatus |
US6122544A (en) * | 1998-05-01 | 2000-09-19 | Organ; Leslie William | Electrical impedance method and apparatus for detecting and diagnosing diseases |
AUPQ113799A0 (en) * | 1999-06-22 | 1999-07-15 | University Of Queensland, The | A method and device for measuring lymphoedema |
US6594521B2 (en) | 1999-12-17 | 2003-07-15 | Electrical Geodesics, Inc. | Method for localizing electrical activity in the body |
US7499745B2 (en) * | 2000-02-28 | 2009-03-03 | Barbara Ann Karmanos Cancer Institute | Multidimensional bioelectrical tissue analyzer |
US6768921B2 (en) * | 2000-12-28 | 2004-07-27 | Z-Tech (Canada) Inc. | Electrical impedance method and apparatus for detecting and diagnosing diseases |
CA2472220A1 (en) | 2000-12-30 | 2002-07-11 | University Of Leeds | Electrical impedance tomography |
US6529759B1 (en) | 2001-03-08 | 2003-03-04 | Electrical Geodesics, Inc. | Method for mapping internal body tissue |
US7840250B2 (en) | 2001-11-13 | 2010-11-23 | Electrical Geodesics, Inc. | Method for neural current imaging |
US20080064981A1 (en) * | 2002-11-07 | 2008-03-13 | Christopher Gregory | Method and apparatus for determining electrical properties of objects containing inhomogeneities |
DE10315863B4 (de) * | 2003-04-08 | 2013-03-14 | Dräger Medical GmbH | Elektrodengürtel |
US20040236202A1 (en) * | 2003-05-22 | 2004-11-25 | Burton Steven Angell | Expandable strap for use in electrical impedance tomography |
US20050107833A1 (en) | 2003-11-13 | 2005-05-19 | Freeman Gary A. | Multi-path transthoracic defibrillation and cardioversion |
US20080076998A1 (en) * | 2003-12-01 | 2008-03-27 | Z-Tech (Canada) Inc. | Breast electrode array and method of analysis for detecting and diagnosing diseases |
WO2005065090A2 (en) * | 2003-12-30 | 2005-07-21 | The Mitre Corporation | Techniques for building-scale electrostatic tomography |
KR100598146B1 (ko) * | 2004-04-28 | 2006-07-07 | 메디게이트(주) | 체임피던스 측정용 벨트 전극 장치 |
CA2578106C (en) | 2004-06-18 | 2015-09-01 | The University Of Queensland | Oedema detection |
WO2006056074A1 (en) | 2004-11-26 | 2006-06-01 | Z-Tech (Canada) Inc. | Weighted gradient method and system for diagnosing disease |
CA2608962C (en) | 2005-07-01 | 2016-12-06 | Scott Chetham | Monitoring system |
EP1898784B1 (de) | 2005-07-01 | 2016-05-18 | Impedimed Limited | Verfahren und vorrichtung für impedanzmessungen |
JP5161772B2 (ja) | 2005-08-02 | 2013-03-13 | インぺディメッド リミテッド | インピーダンスパラメータ値 |
GB0516158D0 (en) * | 2005-08-05 | 2005-09-14 | Univ Montfort | An apparatus and method for `non-contact' electrical impedance imaging |
WO2007035887A2 (en) * | 2005-09-21 | 2007-03-29 | Beth Israel Deaconess Medical Center, Inc. | Electrical impedance myography |
CA2625631C (en) | 2005-10-11 | 2016-11-29 | Impedance Cardiology Systems, Inc. | Hydration status monitoring |
EP1813345A1 (de) * | 2006-01-30 | 2007-08-01 | Sulzer Pumpen Ag | Verfahren und Vorrichtung zum steuern der Effiziens des Mischens |
ES2545730T3 (es) * | 2006-05-30 | 2015-09-15 | Impedimed Limited | Mediciones de impedancia |
JP5372768B2 (ja) | 2006-11-30 | 2013-12-18 | インぺディメッド リミテッド | 測定装置 |
ES2543967T3 (es) | 2007-01-15 | 2015-08-26 | Impedimed Limited | Método para efectuar mediciones de impedancia en un sujeto |
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 |
US10307074B2 (en) * | 2007-04-20 | 2019-06-04 | Impedimed Limited | Monitoring system and probe |
WO2009018620A1 (en) * | 2007-08-09 | 2009-02-12 | Impedimed Limited | Impedance measurement process |
CA2704061C (en) | 2007-11-05 | 2017-06-20 | Impedimed Limited | Impedance determination |
AU2008207672B2 (en) | 2008-02-15 | 2013-10-31 | Impedimed Limited | Impedance Analysis |
WO2010060152A1 (en) | 2008-11-28 | 2010-06-03 | Impedimed Limited | Impedance measurement process |
US8948838B2 (en) | 2009-01-27 | 2015-02-03 | Scibase Ab | Switch probe for multiple electrode measurement of impedance |
US9615767B2 (en) | 2009-10-26 | 2017-04-11 | Impedimed Limited | Fluid level indicator determination |
EP2501283B1 (de) | 2009-11-18 | 2016-09-21 | Impedimed Limited | Signalverteilung für patientenelektrodenmessungen |
US8264246B2 (en) * | 2010-01-05 | 2012-09-11 | General Electric Company | Electrical network representation of a distributed system |
US8054094B1 (en) * | 2010-06-10 | 2011-11-08 | General Electric Company | Image reconstruction based constrained maximization |
JP5656219B2 (ja) * | 2010-12-16 | 2015-01-21 | 一般財団法人電力中央研究所 | インピーダンス計測センサおよびインピーダンス計測装置 |
JP5704326B2 (ja) * | 2011-03-28 | 2015-04-22 | 株式会社Ihi | トモグラフィ装置及びトモグラフィ計測方法 |
US8983578B2 (en) | 2012-02-27 | 2015-03-17 | General Electric Company | System and method for transducer placement in soft-field tomography |
US20150342497A1 (en) | 2013-01-09 | 2015-12-03 | Timpel S.A. | Method and apparatus for acquiring of signals for electrical impedance |
RU2635343C2 (ru) * | 2013-02-01 | 2017-11-16 | Россоле Лтд | Способ, устройство и компьютерная программа для определения местоположения поверхности раздела |
WO2014135741A1 (en) | 2013-03-07 | 2014-09-12 | Rocsole Ltd | Method and apparatus for investigating permittivity in a target domain |
JP2014202722A (ja) * | 2013-04-10 | 2014-10-27 | 株式会社豊田中央研究所 | 混相状態分布計測装置 |
JP6423183B2 (ja) * | 2014-06-25 | 2018-11-14 | 株式会社Ihi | トモグラフィ計測方法 |
DE102014009439B4 (de) | 2014-06-25 | 2018-05-30 | Drägerwerk AG & Co. KGaA | Vorrichtung und Verfahren zur Verarbeitung von tomografischen Daten |
GB201416287D0 (en) * | 2014-09-15 | 2014-10-29 | Univ Leeds | Tomography apparatus, multi-phase flow monitoring system and corresponding methods |
GB201416280D0 (en) | 2014-09-15 | 2014-10-29 | Univ Leeds | Tomography apparatus and method |
FR3029287B1 (fr) * | 2014-11-28 | 2016-12-30 | Commissariat Energie Atomique | Methode d'imagerie d'un milieu par mesures electriques avec correction d'impedance de contact |
DE102014018107B4 (de) | 2014-12-09 | 2022-03-10 | Drägerwerk AG & Co. KGaA | Vorrichtung zur Verarbeitung von tomografischen Daten zur Darstellung eines Therapieverlaufs |
DE102014018490A1 (de) | 2014-12-16 | 2015-11-05 | Drägerwerk AG & Co. KGaA | Vorrichtung und Verfahren zur Entfernung impulsartiger Störsignale aus Misssignalen eines für eine Bildgebung der Lunge geeignetes Elektro-Impedanz-Tomographie-Gerätes |
US10874324B2 (en) * | 2015-10-20 | 2020-12-29 | General Electric Company | Detection of physiological changes in impedance monitoring |
DE102016011161A1 (de) | 2016-09-16 | 2018-03-22 | Drägerwerk AG & Co. KGaA | Vorrichtung zur Verarbeitung und Visualisierung von Daten eines Elektro-lmpedanz-Tomographie-Gerätes zu einer Ermittlung und Visualisierung von regionalen Eigenschaften der Ventilation der Lunge |
DE102016014251B4 (de) | 2016-11-30 | 2023-02-02 | Drägerwerk AG & Co. KGaA | Vorrichtung und Verfahren zur Ermittlung einer axialen Position einer Elektrodenanordnung zur Elektro-Impedanz-Tomographie |
DE102016014252B4 (de) | 2016-11-30 | 2023-02-02 | Drägerwerk AG & Co. KGaA | Vorrichtung und Verfahren zur Bestimmung einer Umfangsform einer Elektrodenanordnung zur Elektro-Impedanz-Tomographie |
DE102017006107A1 (de) | 2017-06-28 | 2019-01-03 | Drägerwerk AG & Co. KGaA | Vorrichtung und Verfahren zur Verarbeitung und Visualisierung von mittels eines Elektro-lmpedanz-Tomographie-Gerätes (EIT) gewonnenen Daten hinsichtlich eines Durchblutungszustandes von Herz und Lunge |
DE102017007224A1 (de) | 2017-08-02 | 2019-02-07 | Drägerwerk AG & Co. KGaA | Vorrichtung und Verfahren zu einer Bestimmung von Differenzkennzahlen auf Basis von EIT-Daten |
US11412946B2 (en) | 2017-11-14 | 2022-08-16 | Timpel Medical B.V. | Electrical impedance tomography device and system having a multi-dimensional electrode arrangement |
US10542906B2 (en) | 2018-04-25 | 2020-01-28 | Spectrohm, Inc. | Tomographic systems and methods for determining characteristics of inhomogenous specimens using guided electromagnetic fields |
JP2020046182A (ja) * | 2018-09-14 | 2020-03-26 | 日置電機株式会社 | 処理装置および処理方法 |
DE102018008545A1 (de) | 2018-11-01 | 2020-05-07 | Drägerwerk AG & Co. KGaA | Vorrichtung und Verfahren zur Elektro-lmpedanz-Tomographie (EIT) mit Ermittlung einer Herzregion |
CN111024772B (zh) * | 2019-12-03 | 2022-06-14 | 西安科技大学 | 激光熔覆熔池微电阻分布成像方法与装置 |
DE102021134348A1 (de) | 2021-12-22 | 2023-06-22 | Drägerwerk AG & Co. KGaA | Verfahren und System mit einer Messvorrichtung und einer Analysevorrichtung zu einer Verarbeitung von Daten |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2813068A1 (de) * | 1978-03-25 | 1979-10-04 | Philips Patentverwaltung | Verfahren und vorrichtung zur ermittlung von inneren koerperstrukturen |
FR2486386A1 (fr) * | 1980-07-09 | 1982-01-15 | Argamakoff Alexis | Detecteur combine thermographique et impedancemetrique pour la detection precoce de tumeurs |
US4709704A (en) * | 1984-03-06 | 1987-12-01 | The Kendall Company | Monitoring device for bio-signals |
US4920490A (en) * | 1988-01-28 | 1990-04-24 | Rensselaer Polytechnic Institute | Process and apparatus for distinguishing conductivities by electric current computed tomography |
US5184624A (en) * | 1988-04-15 | 1993-02-09 | The University Of Sheffield | Electrical impedance tomography |
US4974598A (en) * | 1988-04-22 | 1990-12-04 | Heart Map, Inc. | EKG system and method using statistical analysis of heartbeats and topographic mapping of body surface potentials |
US5020541A (en) * | 1988-07-13 | 1991-06-04 | Physio-Control Corporation | Apparatus for sensing lead and transthoracic impedances |
GB9013177D0 (en) * | 1990-06-13 | 1990-08-01 | Brown Brian H | Real-time imaging, etc. |
US5272624A (en) * | 1990-10-02 | 1993-12-21 | Rensselaer Polytechnic Institute | Current patterns for impedance tomography |
SE466987B (sv) * | 1990-10-18 | 1992-05-11 | Stiftelsen Ct Foer Dentaltekni | Anordning foer djupselektiv icke-invasiv, lokal maetning av elektrisk impedans i organiska och biologiska material samt prob foer maetning av elektrisk impedans |
GB9113830D0 (en) * | 1991-06-27 | 1991-08-14 | Brown Brian H | Applied potential tomography |
US5544662A (en) * | 1991-07-09 | 1996-08-13 | Rensselaer Polytechnic Institute | High-speed electric tomography |
US5284142A (en) * | 1991-12-16 | 1994-02-08 | Rensselaer Polytechnic Institute | Three-dimensional impedance imaging processes |
US5390110A (en) * | 1991-07-09 | 1995-02-14 | Rensselaer Polytechnic Institute | Layer stripping process for impedance imaging |
US5381333A (en) * | 1991-07-23 | 1995-01-10 | Rensselaer Polytechnic Institute | Current patterns for electrical impedance tomography |
GB9116215D0 (en) * | 1991-07-26 | 1991-09-11 | Nat Res Dev | Electrical impedance tomography |
US5351697A (en) * | 1991-12-16 | 1994-10-04 | Rensseleaer Polytechnic Institute | Three-dimensional impedance imaging process |
GB9226376D0 (en) * | 1992-12-18 | 1993-02-10 | British Tech Group | Tomography |
DE4243628A1 (de) * | 1992-12-22 | 1994-06-23 | Siemens Ag | Vorrichtung zur nichtinvasiven Bestimmung der räumlichen Verteilung der elektrischen Impedanz im Innern eines Lebewesens |
US5560372A (en) * | 1994-02-02 | 1996-10-01 | Cory; Philip C. | Non-invasive, peripheral nerve mapping device and method of use |
US5657552A (en) * | 1995-11-09 | 1997-08-19 | Reineck; Rollin | Device for measuring distances on globes or maps |
-
1995
- 1995-03-10 AU AU18570/95A patent/AU699170B2/en not_active Ceased
- 1995-03-10 WO PCT/GB1995/000520 patent/WO1995024155A1/en active IP Right Grant
- 1995-03-10 EP EP95910660A patent/EP0749285B1/de not_active Expired - Lifetime
- 1995-03-10 JP JP52331895A patent/JP3759606B2/ja not_active Expired - Fee Related
- 1995-03-10 DE DE69505799T patent/DE69505799T2/de not_active Expired - Lifetime
- 1995-03-10 US US08/700,370 patent/US5807251A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011018505A1 (de) * | 2011-04-23 | 2012-10-25 | Dräger Medical GmbH | Vorrichtung und Verfahren zur Elektroimpedanztomographie |
US9042957B2 (en) | 2011-04-23 | 2015-05-26 | Dräger Medical GmbH | Device and method for electroimpedance tomography |
DE102011018505B4 (de) * | 2011-04-23 | 2021-06-24 | Drägerwerk AG & Co. KGaA | Vorrichtung zur Elektroimpedanztomographie |
DE102011108252A1 (de) * | 2011-07-22 | 2013-01-24 | Rheinisch-Westfälische Technische Hochschule Aachen | Verfahren und Vorrichtung zur Überwachung des Harnblasenfüllstandes eines Patienten |
Also Published As
Publication number | Publication date |
---|---|
US5807251A (en) | 1998-09-15 |
EP0749285B1 (de) | 1998-11-04 |
JP3759606B2 (ja) | 2006-03-29 |
EP0749285A1 (de) | 1996-12-27 |
AU1857095A (en) | 1995-09-25 |
JPH09510014A (ja) | 1997-10-07 |
AU699170B2 (en) | 1998-11-26 |
WO1995024155A1 (en) | 1995-09-14 |
DE69505799D1 (de) | 1998-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |