JP2005199074A - 心電図波形に基準値を合成する方法及びシステム - Google Patents
心電図波形に基準値を合成する方法及びシステム Download PDFInfo
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- JP2005199074A JP2005199074A JP2005007597A JP2005007597A JP2005199074A JP 2005199074 A JP2005199074 A JP 2005199074A JP 2005007597 A JP2005007597 A JP 2005007597A JP 2005007597 A JP2005007597 A JP 2005007597A JP 2005199074 A JP2005199074 A JP 2005199074A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 238000000718 qrs complex Methods 0.000 claims description 19
- 230000002194 synthesizing effect Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 210000003141 lower extremity Anatomy 0.000 description 3
- 230000033764 rhythmic process Effects 0.000 description 3
- 230000000747 cardiac effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000010247 heart contraction Effects 0.000 description 1
- 230000004217 heart function Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004213 regulation of atrial cardiomyocyte membrane depolarization Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/30—Input circuits therefor
- A61B5/307—Input circuits therefor specially adapted for particular uses
- A61B5/308—Input circuits therefor specially adapted for particular uses for electrocardiography [ECG]
-
- 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
- A61B5/30—Input circuits therefor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
- H03F3/45928—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit
- H03F3/45932—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by using feedback means
- H03F3/45937—Measuring at the loading circuit of the differential amplifier
- H03F3/45941—Controlling the input circuit of the differential amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/261—Amplifier which being suitable for instrumentation applications
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- Power Engineering (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
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- Veterinary Medicine (AREA)
- Cardiology (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
【解決手段】 心電図波形内のトリガ事象を特定するステップ200と、トリガ事象の後で、心電図波形が比較的に不活性な期間に入るまで一定期間にわたり待機するステップ230と、比較的に不活性な期間中に心電図波形をサンプリングするステップ240と、心電図波形をサンプルと照合するステップ250とを含む。
【選択図】 図7
Description
また、本発明に係る、心電図波形に基準値を合成するシステムにあっては、患者の心電図波形を表す電圧を伝える少なくとも1つの電極入力と、心電図波形内の事象を検出する事象検出器と、一定期間後に前記事象検出器に応答して、サンプリングデバイスを起動するタイミングデバイスとを備え、サンプリングデバイスにより、前記心電図波形を照合する基準値を求める。
VOutput 115=R2/R1(V+−V-)
に従って電極入力45から減算することができる。
45 電極入力
70 事象検出器
80 タイミングデバイス(時限装置)
85 サンプル・ホールドデバイス
95 増幅器
115 出力
125 アナログ−デジタル変換器
130 メモリ
140 プロセッサ
145 基準電圧発生器
Claims (10)
- 心電図波形に基準値を合成する方法であって、
前記心電図波形内のトリガ事象を特定するステップと、
前記トリガ事象の後で、前記心電図波形が比較的に不活性な期間に入るまで、一定期間にわたり待機するステップと、
前記比較的に不活性な期間中に前記心電図波形をサンプリングするステップと、
前記心電図波形をサンプルと照合するステップと、
を含むことを特徴とする方法。 - 前記比較的に不活性な期間は、前記心電図波形のPT期間中に生じることを特徴とする請求項1に記載の方法。
- 前記トリガ事象は、前記心電図波形のQRS群のピークR値であることを特徴とする請求項1に記載の方法。
- 前記トリガ事象は、QRS群の負のSピーク及びT波のうちの少なくとも1つが後に続く、前記心電図波形の前記QRS群のピークR値であることを特徴とする請求項1に記載の方法。
- 前記トリガ事象は、少なくとも0.2秒の比較的に不活性な期間が後に続く、前記QRS群の正のR値であることを特徴とする請求項1に記載の方法。
- 心電図波形に基準値を合成するシステムであって、
患者の心電図波形を表す電圧を伝える少なくとも1つの電極入力と、
前記心電図波形内の事象を検出する事象検出器と、
一定期間後に前記事象検出器に応答して、サンプリングデバイスを起動するタイミングデバイスと
を備え、
前記サンプリングデバイスは、前記心電図波形を照合する前記基準値を求めること、
を特徴とするシステム。 - 前記基準値は、略0ボルトであることを特徴とする請求項6に記載のシステム。
- 前記事象は、前記心電図波形のQRS群のRピークであることを特徴とする請求項6に記載のシステム。
- 前記事象は、QRS群のピークが後に続く、比較的に不活性な期間であることを特徴とする請求項6に記載のシステム。
- 前記サンプリングデバイスは、前記心電図波形の電圧の変化率を更に検出し、サンプル及び前記電圧の変化率に基づいて前記基準値を求めることを特徴とする請求項6に記載のシステム。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/758,813 US7558621B2 (en) | 2004-01-16 | 2004-01-16 | Synthesizing a reference value in an electrocardial waveform |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005199074A true JP2005199074A (ja) | 2005-07-28 |
JP4112557B2 JP4112557B2 (ja) | 2008-07-02 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2005007597A Expired - Fee Related JP4112557B2 (ja) | 2004-01-16 | 2005-01-14 | 心電図波形に基準値を合成するシステム |
Country Status (4)
Country | Link |
---|---|
US (1) | US7558621B2 (ja) |
EP (1) | EP1554975B1 (ja) |
JP (1) | JP4112557B2 (ja) |
DE (1) | DE602005010492D1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016165383A (ja) * | 2015-03-10 | 2016-09-15 | 公立大学法人首都大学東京 | 生体信号解析システム、方法およびプログラム |
WO2017188772A1 (ko) * | 2016-04-28 | 2017-11-02 | 한국과학기술원 | 수축기를 피하여 oct 이미징을 수행하는 방법 및 이를 수행하는 장치들 |
JP2019042503A (ja) * | 2017-08-29 | 2019-03-22 | バイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd. | Ecg信号及びインピーダンスを示す電気信号を同時に感知するための医療用パッチ |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0641271U (ja) * | 1992-10-30 | 1994-05-31 | 村田機械株式会社 | 原稿読み取り装置 |
NL1034223C2 (nl) * | 2007-08-02 | 2009-02-03 | Twente Medical Systems International Bv | Inrichting voor het verwerken van signalen. |
US8700141B2 (en) * | 2010-03-10 | 2014-04-15 | Brainscope Company, Inc. | Method and apparatus for automatic evoked potentials assessment |
KR101843083B1 (ko) | 2011-01-26 | 2018-03-29 | 삼성전자주식회사 | 다중의 단위 측정기들을 포함하는 생체 신호 측정 장치 및 방법 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3868567A (en) * | 1973-11-26 | 1975-02-25 | Univ Washington | Measurement of ST depression of electrocardiograms |
US4446868A (en) | 1982-05-24 | 1984-05-08 | Aronson Alfred L | Cardiac arrhythmia analysis system |
US4545380A (en) | 1984-04-16 | 1985-10-08 | Cordis Corporation | Method and apparatus for setting and changing parameters or functions of an implanted device |
WO1987006447A1 (en) * | 1986-04-21 | 1987-11-05 | Drago Cernjavic | Electrocardiograph |
US5423325A (en) | 1993-03-12 | 1995-06-13 | Hewlett-Packard Corporation | Methods for enhancement of HRV and late potentials measurements |
US5603321A (en) * | 1995-08-07 | 1997-02-18 | Biomagnetic Technologies, Inc. | Artifact removal from physiological signals |
US5615687A (en) | 1995-12-06 | 1997-04-01 | Hewlett-Packard Company | Heart monitoring system and method with reduced signal acquisition range |
US6032069A (en) | 1998-05-01 | 2000-02-29 | Uab Research Foundation | Physiological triggering device for high-field magnetic-resonance instrumentation |
US6324421B1 (en) * | 1999-03-29 | 2001-11-27 | Medtronic, Inc. | Axis shift analysis of electrocardiogram signal parameters especially applicable for multivector analysis by implantable medical devices, and use of same |
US6169919B1 (en) * | 1999-05-06 | 2001-01-02 | Beth Israel Deaconess Medical Center, Inc. | System and method for quantifying alternation in an electrocardiogram signal |
-
2004
- 2004-01-16 US US10/758,813 patent/US7558621B2/en not_active Expired - Fee Related
-
2005
- 2005-01-13 DE DE602005010492T patent/DE602005010492D1/de active Active
- 2005-01-13 EP EP05250150A patent/EP1554975B1/en not_active Expired - Fee Related
- 2005-01-14 JP JP2005007597A patent/JP4112557B2/ja not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016165383A (ja) * | 2015-03-10 | 2016-09-15 | 公立大学法人首都大学東京 | 生体信号解析システム、方法およびプログラム |
WO2017188772A1 (ko) * | 2016-04-28 | 2017-11-02 | 한국과학기술원 | 수축기를 피하여 oct 이미징을 수행하는 방법 및 이를 수행하는 장치들 |
KR101851058B1 (ko) * | 2016-04-28 | 2018-04-20 | 한국과학기술원 | 수축기를 피하여 oct 이미징을 수행하는 방법 및 이를 수행하는 장치들 |
CN109414185A (zh) * | 2016-04-28 | 2019-03-01 | 韩国科学技术院 | 回避收缩期执行oct成像的方法及其执行装置 |
JP2019042503A (ja) * | 2017-08-29 | 2019-03-22 | バイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd. | Ecg信号及びインピーダンスを示す電気信号を同時に感知するための医療用パッチ |
JP7305318B2 (ja) | 2017-08-29 | 2023-07-10 | バイオセンス・ウエブスター・(イスラエル)・リミテッド | Ecg信号及びインピーダンスを示す電気信号を同時に感知するための医療用パッチ |
Also Published As
Publication number | Publication date |
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JP4112557B2 (ja) | 2008-07-02 |
EP1554975B1 (en) | 2008-10-22 |
EP1554975A1 (en) | 2005-07-20 |
US20050159665A1 (en) | 2005-07-21 |
US7558621B2 (en) | 2009-07-07 |
DE602005010492D1 (de) | 2008-12-04 |
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