JP2005509481A - 生体臨床測定用電極 - Google Patents
生体臨床測定用電極 Download PDFInfo
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- JP2005509481A JP2005509481A JP2003545179A JP2003545179A JP2005509481A JP 2005509481 A JP2005509481 A JP 2005509481A JP 2003545179 A JP2003545179 A JP 2003545179A JP 2003545179 A JP2003545179 A JP 2003545179A JP 2005509481 A JP2005509481 A JP 2005509481A
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- contact plate
- electrode
- current source
- transmission line
- current
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- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Radiology & Medical Imaging (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
Description
図2は、本発明に係る電極の原理的回路図、
図3は、相反法の概略説明図、
図4は、双極性電流源の回路図、
図5は、伝送路ドライバの回路図、
図6は、図2の原理的回路図に従って構成された本発明に係る電極の断面、
図7は、本発明に係る電極ベルトの断面、
図8は、図7の電極ベルトのデータ収集装置の断面、
図9は、図8に描かれたデータ収集装置の分解組立図、
図10は、インピーダンスの低い、対称的な信号伝送及び処理のための回路、
図11は、交流電源の交流電源インピーダンスに含まれる高インピーダンス内部抵抗を補償するための回路、そして、
図12は、電極における電極−接続点間の漂遊容量を補償するための回路。
a) 対称的な信号伝送において、
b) インピーダンスの低い終端抵抗(RTi、ここでRTi≦typ.300Ω)を使用し、
c) 電流供給構造とマルチプレクサ構造の減結合を改善する
ことにより改善される。
1/(1/RICS−1/RCOMP)=Rp
と表現される。
Claims (14)
- 接触板、
高インピーダンスの信号入力及び低インピーダンスの伝送路出力を有する伝送路ドライバ、及び、
電流出力及び基準点を有する電流源を備え、
前記接触板は前記伝送路ドライバの高インピーダンスの信号入力及び前記電流源の電流出力に電気的に接続され、前記伝送路ドライバ及び前記電流源は前記接触板の空間的近傍に配置されている
生体臨床測定用電極。 - 前記接触板と前記基準点との間の漂遊容量が可能な限り小さくなるように、前記接触板、前記電流源及び前記伝送路ドライバの間の電気的接続が成されていることを特徴とする請求項1に記載の電極。
- 前記伝送路ドライバ及び前記電流源が一体の回路として前記接触板上に配置されていることを特徴とする請求項1又は2に記載の電極。
- 密閉ケースの中で前記接触板が前記伝送路ドライバ及び前記電流源と一体化されていることを特徴とする請求項1〜3のいずれかに記載の電極。
- 前記接触板と前記基準点との間の漂遊容量を能動的に補償するための回路が設けられていることを特徴とする請求項1〜4のいずれかに記載の電極。
- 前記電流源が、内部抵抗の大きい、出力電流が入力電圧にほぼ比例する双極性電流源であることを特徴とする請求項1〜5のいずれかに記載の電極。
- 前記電流源が、周波数範囲1kHzから1MHz、振幅範囲1μAから10mAの交流電流を発生することを特徴とする請求項1〜6のいずれかに記載の電極。
- 前記交流電流が周波数変調又は振幅変調されていることを特徴とする請求項7に記載の電極。
- 前記伝送路ドライバがインピーダンス変換回路から成ることを特徴とする請求項1〜8のいずれかに記載の電極。
- 前記低インピーダンスの伝送路出力と前記基準点との間に電圧測定器が接続されていることを特徴とする請求項9に記載の電極。
- 前記接触板を前記基準点の電位に選択的に接続可能にするためのスイッチが該接触板と該基準点との間に設けられていることを特徴とする請求項1〜10のいずれかに記載の電極。
- 請求項1〜11のいずれかに記載の電極を多数備える、電気インピーダンストモグラフィによる測定を行うための電極ベルト。
- 前記電極が互いにほぼ等間隔で取り付けられていることを特徴とする請求項1〜12のいずれかに記載の電極ベルト。
- 少なくともアナログ−デジタル変換器を備え、該アナログ−デジタル変換器を通じて、一又は複数の電極から各接触板と基準点との間の電圧を読み取り、データ伝送路を通じて中央演算装置に転送するデータ収集装置を備えることをを特徴とする請求項1〜13のいずれかに記載の電極ベルト。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10156833A DE10156833A1 (de) | 2001-11-20 | 2001-11-20 | Elektrode für biomedizinische Messungen |
PCT/EP2002/013026 WO2003043493A2 (de) | 2001-11-20 | 2002-11-20 | Elektrode für biomedizinische messungen |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005509481A true JP2005509481A (ja) | 2005-04-14 |
JP4503289B2 JP4503289B2 (ja) | 2010-07-14 |
Family
ID=7706285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003545179A Expired - Fee Related JP4503289B2 (ja) | 2001-11-20 | 2002-11-20 | 生体臨床測定用電極 |
Country Status (10)
Country | Link |
---|---|
US (1) | US7136690B2 (ja) |
EP (1) | EP1455647B1 (ja) |
JP (1) | JP4503289B2 (ja) |
CN (1) | CN100355393C (ja) |
AT (1) | ATE418912T1 (ja) |
AU (1) | AU2002361958B2 (ja) |
BR (1) | BRPI0214331B8 (ja) |
CA (1) | CA2467900C (ja) |
DE (2) | DE10156833A1 (ja) |
WO (1) | WO2003043493A2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012106141A (ja) * | 2005-07-01 | 2012-06-07 | Impedimed Ltd | 監視システム |
JP2012192187A (ja) * | 2011-03-16 | 2012-10-11 | Draeger Medical Gmbh | 電気インピーダンストモグラフィのための装置を用いてデータ検出する方法 |
JP2012228514A (ja) * | 2011-04-23 | 2012-11-22 | Draeger Medical Gmbh | 電気インピーダンストモグラフィ装置および電気インピーダンストモグラフィのための方法 |
Families Citing this family (31)
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US20060084855A1 (en) | 2004-10-20 | 2006-04-20 | Drager Medical Ag & Co. Kgaa | Electrode belt for carrying out electrodiagnostic procedures on the human body |
US8768429B2 (en) | 2005-12-23 | 2014-07-01 | E.I.T. Pty Ltd. | Internal bleeding detection apparatus |
BRPI0604484B1 (pt) | 2006-08-28 | 2022-09-27 | Timpel S.A | Método para realização de coleta de dados sobre eletrodos colocados em um corpo |
GB2449276A (en) * | 2007-05-15 | 2008-11-19 | Thomas William Bach | A low-capacitance transmit-receive switch for an EIT electrode |
GB2449904A (en) * | 2007-06-07 | 2008-12-10 | Univ Montfort | A high-frequency current source for Electrical impedance Tomography (EIT), with compensation for amplifier gain error |
EP3922171A1 (en) * | 2007-09-14 | 2021-12-15 | Medtronic Monitoring, Inc. | Adherent cardiac monitor with advanced sensing capabilities |
US20090076341A1 (en) * | 2007-09-14 | 2009-03-19 | Corventis, Inc. | Adherent Athletic Monitor |
EP2195076A4 (en) * | 2007-09-14 | 2014-12-31 | Corventis Inc | ADHERENT DEVICE FOR THE MANAGEMENT OF HEART RATE |
US20090076343A1 (en) * | 2007-09-14 | 2009-03-19 | Corventis, Inc. | Energy Management for Adherent Patient Monitor |
US20090076350A1 (en) * | 2007-09-14 | 2009-03-19 | Corventis, Inc. | Data Collection in a Multi-Sensor Patient Monitor |
US8116841B2 (en) | 2007-09-14 | 2012-02-14 | Corventis, Inc. | Adherent device with multiple physiological sensors |
US8897868B2 (en) * | 2007-09-14 | 2014-11-25 | Medtronic, Inc. | Medical device automatic start-up upon contact to patient tissue |
WO2009036319A1 (en) * | 2007-09-14 | 2009-03-19 | Corventis, Inc. | Adherent emergency patient monitor |
US8591430B2 (en) | 2007-09-14 | 2013-11-26 | Corventis, Inc. | Adherent device for respiratory monitoring |
US9186089B2 (en) | 2007-09-14 | 2015-11-17 | Medtronic Monitoring, Inc. | Injectable physiological monitoring system |
WO2009036369A1 (en) | 2007-09-14 | 2009-03-19 | Corventis, Inc. | System and methods for wireless body fluid monitoring |
WO2009036334A1 (en) * | 2007-09-14 | 2009-03-19 | Corventis, Inc. | Adherent multi-sensor device with empathic monitoring |
US8548558B2 (en) | 2008-03-06 | 2013-10-01 | Covidien Lp | Electrode capable of attachment to a garment, system, and methods of manufacturing |
EP2257216B1 (en) * | 2008-03-12 | 2021-04-28 | Medtronic Monitoring, Inc. | Heart failure decompensation prediction based on cardiac rhythm |
WO2009146214A1 (en) * | 2008-04-18 | 2009-12-03 | Corventis, Inc. | Method and apparatus to measure bioelectric impedance of patient tissue |
US20100191310A1 (en) * | 2008-07-29 | 2010-07-29 | Corventis, Inc. | Communication-Anchor Loop For Injectable Device |
US8868216B2 (en) * | 2008-11-21 | 2014-10-21 | Covidien Lp | Electrode garment |
JP2012520112A (ja) * | 2009-03-11 | 2012-09-06 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 関心対象を測定するための方法及び装置 |
GB0907806D0 (en) * | 2009-05-06 | 2009-06-17 | Neurophysix Telemed Ltd | Impedance Tomography Apparatus |
EP2305112A1 (de) * | 2009-10-01 | 2011-04-06 | seca ag | Bioimpedanzmessvorrichtung |
US8790259B2 (en) | 2009-10-22 | 2014-07-29 | Corventis, Inc. | Method and apparatus for remote detection and monitoring of functional chronotropic incompetence |
US9451897B2 (en) * | 2009-12-14 | 2016-09-27 | Medtronic Monitoring, Inc. | Body adherent patch with electronics for physiologic monitoring |
CN102821684B (zh) * | 2010-03-16 | 2015-04-22 | 斯威斯托姆公开股份有限公司 | 用于电阻抗成像扫描装置的电极和电阻抗成像扫描装置 |
US8965498B2 (en) | 2010-04-05 | 2015-02-24 | Corventis, Inc. | Method and apparatus for personalized physiologic parameters |
CN102012287B (zh) * | 2010-09-29 | 2011-12-14 | 东南大学 | 圆形硅薄膜微机电压力传感器 |
CN108937868B (zh) * | 2018-07-12 | 2021-07-13 | 南京棠邑科创服务有限公司 | 一种生物信号采集外保护装置 |
Citations (3)
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JPH02109604U (ja) * | 1989-02-15 | 1990-09-03 | ||
JPH02131406U (ja) * | 1989-04-10 | 1990-11-01 | ||
JPH06168A (ja) * | 1992-06-22 | 1994-01-11 | Hitachi Ltd | 電気インピ−ダンス分布測定方法およびその装置 |
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CA2280996A1 (en) * | 1999-08-26 | 2001-02-26 | Riccardo Brun Del Re | Electric field sensor |
-
2001
- 2001-11-20 DE DE10156833A patent/DE10156833A1/de not_active Withdrawn
-
2002
- 2002-11-20 CA CA2467900A patent/CA2467900C/en not_active Expired - Fee Related
- 2002-11-20 JP JP2003545179A patent/JP4503289B2/ja not_active Expired - Fee Related
- 2002-11-20 AU AU2002361958A patent/AU2002361958B2/en not_active Ceased
- 2002-11-20 CN CNB028251237A patent/CN100355393C/zh not_active Expired - Fee Related
- 2002-11-20 BR BRPI0214331A patent/BRPI0214331B8/pt not_active IP Right Cessation
- 2002-11-20 WO PCT/EP2002/013026 patent/WO2003043493A2/de active Application Filing
- 2002-11-20 DE DE50213180T patent/DE50213180D1/de not_active Expired - Lifetime
- 2002-11-20 AT AT02796547T patent/ATE418912T1/de not_active IP Right Cessation
- 2002-11-20 EP EP02796547A patent/EP1455647B1/de not_active Expired - Lifetime
-
2004
- 2004-05-19 US US10/848,501 patent/US7136690B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH02109604U (ja) * | 1989-02-15 | 1990-09-03 | ||
JPH02131406U (ja) * | 1989-04-10 | 1990-11-01 | ||
JPH06168A (ja) * | 1992-06-22 | 1994-01-11 | Hitachi Ltd | 電気インピ−ダンス分布測定方法およびその装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012106141A (ja) * | 2005-07-01 | 2012-06-07 | Impedimed Ltd | 監視システム |
JP2012192187A (ja) * | 2011-03-16 | 2012-10-11 | Draeger Medical Gmbh | 電気インピーダンストモグラフィのための装置を用いてデータ検出する方法 |
JP2012228514A (ja) * | 2011-04-23 | 2012-11-22 | Draeger Medical Gmbh | 電気インピーダンストモグラフィ装置および電気インピーダンストモグラフィのための方法 |
Also Published As
Publication number | Publication date |
---|---|
DE10156833A1 (de) | 2003-05-28 |
EP1455647A2 (de) | 2004-09-15 |
CN100355393C (zh) | 2007-12-19 |
AU2002361958B2 (en) | 2008-05-01 |
BR0214331A (pt) | 2004-11-30 |
WO2003043493A2 (de) | 2003-05-30 |
CN1604755A (zh) | 2005-04-06 |
ATE418912T1 (de) | 2009-01-15 |
EP1455647B1 (de) | 2008-12-31 |
US7136690B2 (en) | 2006-11-14 |
US20050020935A1 (en) | 2005-01-27 |
WO2003043493A3 (de) | 2003-10-16 |
AU2002361958A1 (en) | 2003-06-10 |
BRPI0214331B8 (pt) | 2021-06-22 |
BR0214331B1 (pt) | 2013-03-05 |
CA2467900C (en) | 2012-05-01 |
DE50213180D1 (de) | 2009-02-12 |
CA2467900A1 (en) | 2003-05-30 |
JP4503289B2 (ja) | 2010-07-14 |
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