JP6351504B2 - 2本の肢の間を測定することで心臓血管の情報を取得するための装置 - Google Patents
2本の肢の間を測定することで心臓血管の情報を取得するための装置 Download PDFInfo
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- JP6351504B2 JP6351504B2 JP2014522125A JP2014522125A JP6351504B2 JP 6351504 B2 JP6351504 B2 JP 6351504B2 JP 2014522125 A JP2014522125 A JP 2014522125A JP 2014522125 A JP2014522125 A JP 2014522125A JP 6351504 B2 JP6351504 B2 JP 6351504B2
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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
- A61B5/02—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
- A61B5/24—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]
-
- 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
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
- A61B5/02125—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics of pulse wave propagation time
-
- 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
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/0245—Detecting, measuring or recording pulse rate or heart rate by using sensing means generating electric signals, i.e. ECG signals
-
- 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
-
- 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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/25—Bioelectric electrodes therefor
-
- 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
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes 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
- A61B5/25—Bioelectric electrodes therefor
- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
- A61B5/282—Holders for multiple electrodes
-
- 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
-
- 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]
- A61B5/332—Portable devices specially adapted therefor
-
- 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
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6824—Arm or wrist
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6825—Hand
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6828—Leg
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6829—Foot or ankle
Description
図5は、記載された好ましい実施形態によって得られたIPG及びECGを示している。上の曲線(IPG)のピークは、下の曲線のピーク(ECGのR波)に対して常にかなり遅れていることが見て取れる。もしも検出されたインピーダンス変化が胸部において発生したものであれば、IPGピークはR波のすぐ後に現れるであろう。なぜなら、これは心室収縮及びその結果として生じる心臓からの血の排出に一致するからである。IPGピークとECGのR波との間の長い遅延は、本発明で提案された電極の配置(投入電極が2つの肢の各々の末端に配置され、検出用電極が投入電極に近接して配置されている)の利点を裏付けている。
Claims (5)
- 心臓血管測定システムから動脈の可撓性及び動脈圧を含む情報を非侵襲的に取得する装置であって、
a)2個の電極対(301.302)であって、前記2個の電極対の各電極対の一方の電極(A、B)は電流投入用電極であり、他方の電極(C,D)は測定用電極であり、前記電流投入用電極(A、B)と測定用電極(C,D)は互いに近接している、2個の電極対(301.302)と、
b)肢の先端に配置された電流投入用第1電極(A)と、別の肢の先端に配置された電流投入用第2電極(B)とに交流電流を供給する交流電源と、
c)前記2つの測定用電極(C,D)の間の電位差を測定するシステムであって、検出器(310)と第1と第2のフィルタリング回路(320,330)とを有し、測定された前記電位差を、心電図(以下「ECG」とも称する)に対応する低周波の第1成分と前記交流電流の周波数を有する第2成分とに分けるシステムと、
前記第2成分の振幅は、前記電流投入用電極(A)と電流投入用電極(B)との間の導電容積のインピーダンスに依存し、前記インピーダンスは、測定される2本の肢の間の基本インピーダンスに対応する定数部分と、インピーダンス容量脈波(以下「IPG」と称する)に対応し心臓血管の動きに起因する可変部分とを含み、
d)以下のステップd1)−d3)
d1)ECGに対応する第1成分とIPGに対応する可変部分とをデジタル化するステップと、
d2)前記第1成分と前記可変部分内のそれぞれの特定の要素を同定するステップと、
d3)前記第1成分の特定の要素と前記可変部分の特定の要素との間の間隔を測定することにより心拍の伝搬時間を計算するステップと
を実行するプロセッサ(340)と
を有し、
前記ECGからの情報と前記交流電流からの情報とを組み合わせることにより、動脈の可撓性及び動脈圧を含む情報を取得する
ことを特徴とする装置。 - 前記情報を表示する装置(350)を更に有する
ことを特徴とする請求項1に記載の装置。 - 前記プロセッサ(340)は、心拍波形を特徴づける計算値からIPGの所定のポイントの振幅を計算する
ことを特徴とする請求項1に記載の装置。 - 前記ステップd3)の特定の要素の間の間隔は、ECGのR波と、前記インピーダンスの可変部分の特定の要素である以下の3つの要素
(x)IPGの立ち上がりの開始点、
(y)IPGの最大振幅点、
(z)前記点(x)と(y)の中間点
の内の1つとの間の間隔である
ことを特徴とする請求項1に記載の装置。 - 前記中間点(z)は、心拍波形の振幅の10%又は50%に対応する点である
ことを特徴とする請求項4に記載の装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP201131331 | 2011-07-29 | ||
ES201131331A ES2398439B1 (es) | 2011-07-29 | 2011-07-29 | Método y aparato para obtener información cardiovascular midiendo entre dos extremidades |
PCT/ES2012/070574 WO2013017718A2 (es) | 2011-07-29 | 2012-07-26 | Método y aparato para obtener información cardiovascular midiendo entre dos extremidades |
Publications (2)
Publication Number | Publication Date |
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JP2014521427A JP2014521427A (ja) | 2014-08-28 |
JP6351504B2 true JP6351504B2 (ja) | 2018-07-04 |
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JP2014522125A Expired - Fee Related JP6351504B2 (ja) | 2011-07-29 | 2012-07-26 | 2本の肢の間を測定することで心臓血管の情報を取得するための装置 |
Country Status (7)
Country | Link |
---|---|
US (2) | US9510761B2 (ja) |
EP (1) | EP2737847B1 (ja) |
JP (1) | JP6351504B2 (ja) |
KR (1) | KR102046669B1 (ja) |
CN (1) | CN103826531B (ja) |
ES (2) | ES2398439B1 (ja) |
WO (1) | WO2013017718A2 (ja) |
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US8870780B2 (en) | 2008-10-15 | 2014-10-28 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for monitoring heart function |
JP5955341B2 (ja) | 2011-01-27 | 2016-07-20 | ザ ボード オブ トラスティーズ オブ ザ レランド スタンフォード ジュニア ユニバーシティー | 循環系を観察するためのシステム及び方法 |
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US9949662B2 (en) | 2014-06-12 | 2018-04-24 | PhysioWave, Inc. | Device and method having automatic user recognition and obtaining impedance-measurement signals |
US10130273B2 (en) | 2014-06-12 | 2018-11-20 | PhysioWave, Inc. | Device and method having automatic user-responsive and user-specific physiological-meter platform |
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2011
- 2011-07-29 ES ES201131331A patent/ES2398439B1/es active Active
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2012
- 2012-07-26 ES ES12819605T patent/ES2791692T3/es active Active
- 2012-07-26 EP EP12819605.2A patent/EP2737847B1/en active Active
- 2012-07-26 CN CN201280036674.6A patent/CN103826531B/zh not_active Expired - Fee Related
- 2012-07-26 JP JP2014522125A patent/JP6351504B2/ja not_active Expired - Fee Related
- 2012-07-26 US US14/235,588 patent/US9510761B2/en active Active
- 2012-07-26 KR KR1020147004413A patent/KR102046669B1/ko active IP Right Grant
- 2012-07-26 WO PCT/ES2012/070574 patent/WO2013017718A2/es active Application Filing
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- 2016-10-24 US US15/332,222 patent/US10076255B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
ES2791692T3 (es) | 2020-11-05 |
CN103826531A (zh) | 2014-05-28 |
JP2014521427A (ja) | 2014-08-28 |
US10076255B2 (en) | 2018-09-18 |
WO2013017718A3 (es) | 2013-03-28 |
US20140194721A1 (en) | 2014-07-10 |
EP2737847A4 (en) | 2015-04-01 |
KR102046669B1 (ko) | 2019-11-19 |
US20170035307A1 (en) | 2017-02-09 |
EP2737847A2 (en) | 2014-06-04 |
KR20140065395A (ko) | 2014-05-29 |
ES2398439B1 (es) | 2014-03-05 |
US9510761B2 (en) | 2016-12-06 |
CN103826531B (zh) | 2016-10-12 |
EP2737847B1 (en) | 2020-02-26 |
ES2398439R2 (es) | 2013-04-24 |
ES2398439A2 (es) | 2013-03-19 |
WO2013017718A2 (es) | 2013-02-07 |
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