JP2008508907A - 心血流量測定を有する除細動器 - Google Patents
心血流量測定を有する除細動器 Download PDFInfo
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- JP2008508907A JP2008508907A JP2007519737A JP2007519737A JP2008508907A JP 2008508907 A JP2008508907 A JP 2008508907A JP 2007519737 A JP2007519737 A JP 2007519737A JP 2007519737 A JP2007519737 A JP 2007519737A JP 2008508907 A JP2008508907 A JP 2008508907A
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- ecg
- icg
- waveform
- blood flow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
- A61N1/39—Heart defibrillators
- A61N1/3925—Monitoring; Protecting
-
- 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
-
- 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
- A61B5/0295—Measuring blood flow using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—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
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/38—Applying electric currents by contact electrodes alternating or intermittent currents for producing shock effects
- A61N1/39—Heart defibrillators
- A61N1/3904—External heart defibrillators [EHD]
-
- 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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/346—Analysis of electrocardiograms
- A61B5/349—Detecting specific parameters of the electrocardiograph cycle
- A61B5/352—Detecting R peaks, e.g. for synchronising diagnostic apparatus; Estimating R-R interval
-
- 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
- A61B5/7264—Classification of physiological signals or data, e.g. using neural networks, statistical classifiers, expert systems or fuzzy systems
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Hematology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Physiology (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Electrotherapy Devices (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
Description
dZ/dt = d[Z-Z0]/dt (1)
ここでZは患者の胸部から測定されたそのままのインピーダンスであり、Z0はZのインピーダンスのベースラインである。
心臓の心電図(ECG)とインピーダンス・カルジオグラフィ(ICG)を同時に採取し;
ECGの連続的な周期を調べて、心臓の電気的な活動を示唆する波形特徴の少なくとも一周期が連続的に発生することを検出し;
その様な各検出に続いて時間の周期(探索周期:search period)を規定し、
前記の各探索周期内においてICG又はそれから得られたシグナルを調べ、ECGにおいて検出された発生に起因する血流を示す波形特徴(「対応する波形特徴」)の発生を検出し;そして
前記の検出された波形特徴に関して測定された関数として、ICGがECGと一致する(concordance)程度を示唆するシグナルを生成する、
という過程からなる。
Y ≧ Eth
ならばショックを与えることがアドバイスされる。そこで、AEDのショック回路24は、Yの値に従い、ショックを与えるか、ショック無しであるかのアドバイスをする。
Claims (7)
- 心臓の電気的な活動の事象が対応する血流の事象の結果となるかを決定する方法であって、以下の:
心臓の心電図(ECG)とインピーダンス・カルジオグラフィ(ICG)を同時に採取し;
ECGの連続的な周期を調べて、心臓の電気的な活動を示唆する波形特徴の少なくとも一周期が連続的に発生することを検出し;
その様な各検出に続いて時間の周期(探索周期:search period)を規定し、
前記の各探索周期内においてICG又はそれから得られたシグナルを調べ、ECGにおいて検出された発生に起因する血流を示す波形特徴(「対応する波形特徴」)の発生を検出し;そして
前記の検出された波形特徴に関して測定された関数として、ICGがECGと一致する(concordance)程度を示唆するシグナルを生成する、
という過程からなる方法。 - 対応する波形特徴について調べる前にICGが微分された(differenciated)請求項1記載の方法。
- ECGの反復する波形特徴がR波であり、ICGまたはそれから得られたシグナルの波形特徴がC波である請求項1または請求項2記載の方法。
- 検出されたECG波形特徴に関してR-R間隔(interval)が測定され、検出されたICG波形特徴に関してC-C間隔(interval)が測定される請求項3記載の方法。
- 前記探索周期がECGでなされた心拍数に依存した測定から計算される請求項1から請求項4のいずれか1項記載の方法。
- ECGの前記連続的な心拍サイクルの各々を調べて多数の異なった波形特徴を検出し、ICGを調べて多数の異なった対応する波形特徴を検出し、各々の検出された特徴に関して多数の測定が行なわれ、血流の程度を示す前記シグナルが前記多数の測定の関数として生じる請求項1から請求項5のいずれか1項記載の方法。
- 請求項1から請求項6のいずれか1項記載の方法を実行するように、および血流の程度を示す前記シグナルの値に依存してショックを与えることを選択的にアドバイスするようにアレンジされた回路を有する体外除細動器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IE20040468 | 2004-07-09 | ||
IES2004/0468 | 2004-07-09 | ||
PCT/EP2005/007454 WO2006005557A1 (en) | 2004-07-09 | 2005-07-07 | Defibrillator with cardiac blood flow determination |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2008508907A true JP2008508907A (ja) | 2008-03-27 |
JP2008508907A5 JP2008508907A5 (ja) | 2008-07-17 |
JP4819045B2 JP4819045B2 (ja) | 2011-11-16 |
Family
ID=35220584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007519737A Active JP4819045B2 (ja) | 2004-07-09 | 2005-07-07 | 心血流量測定を有する除細動器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080306559A1 (ja) |
EP (1) | EP1778347B1 (ja) |
JP (1) | JP4819045B2 (ja) |
AU (1) | AU2005261908B2 (ja) |
WO (1) | WO2006005557A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014006891A1 (ja) * | 2012-07-06 | 2014-01-09 | パナソニック株式会社 | 生体信号計測装置、および、生体信号計測方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2007331664B2 (en) * | 2006-12-14 | 2013-01-10 | Stryker European Operations Limited | A cardiopulmonary resuscitation compression force indicator |
WO2009109595A1 (en) * | 2008-03-05 | 2009-09-11 | Heartsine Technologies Limited | The development and implementation of an adaptive filter technique for the assessment of circulatory collapse. |
WO2011134499A1 (en) * | 2010-04-27 | 2011-11-03 | St. Jude Medical Ab | Arrhythmia classification |
JP6530396B2 (ja) | 2013-08-13 | 2019-06-12 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 心肺蘇生法の品質フィードバックシステム |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4619265A (en) * | 1984-03-08 | 1986-10-28 | Physio-Control Corporation | Interactive portable defibrillator including ECG detection circuit |
US20030109790A1 (en) * | 2001-12-06 | 2003-06-12 | Medtronic Physio-Control Manufacturing Corp. | Pulse detection method and apparatus using patient impedance |
AU2002341609A1 (en) * | 2001-09-06 | 2003-03-24 | Drexel University | Detecting vital signs from impedance cardiograph and electrocardiogram signals |
-
2005
- 2005-07-07 AU AU2005261908A patent/AU2005261908B2/en active Active
- 2005-07-07 JP JP2007519737A patent/JP4819045B2/ja active Active
- 2005-07-07 US US11/571,804 patent/US20080306559A1/en not_active Abandoned
- 2005-07-07 EP EP05772643.2A patent/EP1778347B1/en active Active
- 2005-07-07 WO PCT/EP2005/007454 patent/WO2006005557A1/en active Application Filing
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014006891A1 (ja) * | 2012-07-06 | 2014-01-09 | パナソニック株式会社 | 生体信号計測装置、および、生体信号計測方法 |
JP5587524B2 (ja) * | 2012-07-06 | 2014-09-10 | パナソニック株式会社 | 生体信号計測装置、および、生体信号計測方法 |
JPWO2014006891A1 (ja) * | 2012-07-06 | 2016-06-02 | パナソニック株式会社 | 生体信号計測装置、および、生体信号計測方法 |
US10292600B2 (en) | 2012-07-06 | 2019-05-21 | Panasonic Intellectual Property Management Co., Ltd. | Biosignal measurement apparatus and biosignal measurement method |
Also Published As
Publication number | Publication date |
---|---|
US20080306559A1 (en) | 2008-12-11 |
EP1778347A1 (en) | 2007-05-02 |
AU2005261908B2 (en) | 2011-02-10 |
AU2005261908A1 (en) | 2006-01-19 |
EP1778347B1 (en) | 2016-04-13 |
JP4819045B2 (ja) | 2011-11-16 |
WO2006005557A1 (en) | 2006-01-19 |
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