JP6309025B2 - 非観血式血圧測定に基づき患者の脈波を近似させるための方法、論理演算装置及びシステム - Google Patents
非観血式血圧測定に基づき患者の脈波を近似させるための方法、論理演算装置及びシステム Download PDFInfo
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- A—HUMAN NECESSITIES
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
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- 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
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- 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
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
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- A—HUMAN NECESSITIES
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- 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
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/02233—Occluders specially adapted therefor
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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
- A61B5/68—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
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
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- A61B5/7225—Details of analog processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation
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- 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
- A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
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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
- A61B5/72—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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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
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Description
(a)締め付け圧力clampn(t)を加えながら、患者の一連のn=1〜N個の脈拍信号pulsen_measured(t)を非観血式に測定するステップ;
(b)重み付け関数を使用して、測定された脈拍信号pulsen_measured(t)を重み付けし、重み付けされた脈拍信号pulsen_weighted(t)を取得するステップ;
(c)重み付けされた脈拍信号pulsen_weighted(t)を合算し、患者の脈波の近似pulseapprox(t)を取得するステップ。
−重み付け関数を使用して、先行して測定された脈拍信号pulsen_measured(t)を重み付けし、重み付けされた脈拍信号pulsen_weighted(t)を取得するステップ;
−重み付けされた脈拍信号pulsen_weighted(t)を合算し、患者の脈波pulseapprox(t)の近似を取得するステップ。
但し、これらのステップは有利には、少なくとも1回反復される。
Claims (17)
- 非観血式血圧測定に基づき患者の脈波を近似させる方法において、
(a)一定でない締め付け圧力clampn(t)を加えながら、前記患者の一連のn=1〜N個の脈拍信号pulsen_measured(t)を非観血式に測定するステップと、
(b)重み付け関数を使用して、測定された前記脈拍信号pulsen_measured(t)を重み付けし、重み付けされた脈拍信号pulsen_weighted(t)を取得するステップと、
(c)前記重み付けされた脈拍信号pulsen_weighted(t)を合算し、前記患者の脈波の近似pulseapprox(t)を取得するステップと、
を備える、方法。 - 前記締め付け圧力clampn(t)は、前記重み付け関数の入力パラメータであり、前記重み付け関数は差圧関数である、
請求項1に記載の方法。 - 方法ステップ(b)及び(c)を少なくとも1回反復する、
請求項1又は2に記載の方法。 - 2回目の反復ループ及び/又は3回目以降の反復ループにおいて使用される前記重み付け関数は、1回目の反復ループに使用される前記重み付け関数とは異なる、
請求項3に記載の方法。 - 2回目の反復ループ及び/又は3回目以降の反復ループにおいて使用される前記重み付け関数は、入力パラメータとしての前記締め付け圧力clampn(t)と、別の入力パラメータとしての、先行の反復ループにおいて取得された、前記近似された脈波pulseapprox(t)とを有している差圧関数である、
請求項4に記載の方法。 - 2回目の反復ループ及び/又は3回目以降の反復ループにおいて使用される前記重み付け関数は三角形関数である、
請求項3乃至5のいずれか一項に記載の方法。 - 2回目の反復ループ及び/又は3回目以降の反復ループにおいて使用される前記重み付け関数は釣鐘型関数である、
請求項3乃至5のいずれか一項に記載の方法。 - 2回目の反復ループ及び/又は3回目以降の反復ループの方法ステップ(c)は更に、前記近似された脈波pulseapprox(t)を、前記患者の拡張期血圧値DAPと収縮期血圧値SAPとの差にスケーリングするステップを含んでいる、
請求項3乃至8のいずれか一項に記載の方法。 - 方法ステップ(a)において、前記締め付け圧力clampn(t)を連続的に上昇又は低下させる、
請求項1乃至9のいずれか一項に記載の方法。 - 方法ステップ(a)は更に、前記測定された脈拍信号pulsen_measured(t)を、前記患者の拡張期血圧値DAPと収縮期血圧値SAPとの差にスケーリングするステップを含んでいる、
請求項1乃至10のいずれか一項に記載の方法。 - 非観血式血圧測定に基づき患者の脈波を近似させる論理演算装置において、
前記論理演算装置は、
−重み付け関数を使用して、先行して測定された脈拍信号pulsen_measured(t)を重み付けし、重み付けされた脈拍信号pulsen_weighted(t)を取得するステップであって、前記先行して測定された脈拍信号pulsen_measured(t)は、一定でない締め付け圧力clampn(t)を使用して測定される、ステップ、
−重み付けされた脈拍信号pulsen_weighted(t)を合算し、患者の脈波pulseapprox(t)の近似を取得するステップ、
を実施するように構成されている、但し、前記ステップは、少なくとも1回反復される、
論理演算装置。 - 非観血式の血圧測定に基づき患者の脈波を近似させるシステムにおいて、
前記システムは、請求項13に記載の論理演算装置と、血圧測定装置とを有しており、
前記血圧測定装置は、測定された脈拍信号pulsen_measured(t)を取得するために、前記患者の一連のn=1〜N個の脈拍信号を非観血式に測定するように構成されており、
前記システムは、前記論理演算装置に対する入力値として、前記測定された脈拍信号pulsen_measured(t)を提供するように構成されている、
システム。 - 前記血圧測定装置は、前記患者の動脈血圧を非観血式に測定するために前記患者の腕周りに取り付けられるよう構成されている圧力カフを有している、
請求項14に記載のシステム。 - 前記システムは更に、前記患者の末梢血圧波形データを継続的に非観血式に測定するように構成されている第2の血圧測定装置を有しており、
前記システムは、近似された脈波pulseapprox(t)に基づき、測定された前記末梢血圧波形データから中心血圧波形を再構成するために伝達関数を使用するように構成されている、
請求項15に記載のシステム。 - 前記患者の近似された脈波pulseapprox(t)が規則的な間隔で求められ、
前記伝達関数は、規則的に求められた、前記患者の近似された脈波pulseapprox(t)に基づき規則的に再較正される、
請求項16に記載のシステム。
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US201361756895P | 2013-01-25 | 2013-01-25 | |
EP13000376.7 | 2013-01-25 | ||
US61/756,895 | 2013-01-25 | ||
EP13000376.7A EP2759258B1 (en) | 2013-01-25 | 2013-01-25 | Method of approximating a patient's pulse wave based on non-invasive blood pressure measurement, a logic unit therefore and a system therefore |
PCT/EP2014/000031 WO2014114423A1 (en) | 2013-01-25 | 2014-01-09 | Method of approximating a patient's pulse wave based on non-invasive blood pressure measurement, a logic unit therefore and a system therefore |
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JP2016508386A JP2016508386A (ja) | 2016-03-22 |
JP2016508386A5 JP2016508386A5 (ja) | 2017-02-09 |
JP6309025B2 true JP6309025B2 (ja) | 2018-04-11 |
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US (2) | US20150320364A1 (ja) |
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EP3125743B1 (de) | 2014-04-04 | 2022-03-23 | Philips Medizin Systeme Böblingen GmbH | Verfahren zur bestimmung des blutdrucks in einem blutgefäss sowie vorrichtung zur durchführung desselben |
CA3054887A1 (en) * | 2017-03-02 | 2018-09-07 | Atcor Medical Pty Ltd | Non-invasive brachial blood pressure measurement |
CN110621219B (zh) * | 2017-03-17 | 2022-08-02 | 安科医疗私人有限公司 | 中心主动脉血压和波形校准方法 |
CA3057762A1 (en) * | 2017-04-13 | 2018-10-18 | Atcor Medical Pty Ltd | Non-invasive blood pressure measurement |
CN110448279A (zh) * | 2019-09-18 | 2019-11-15 | 东莞市好康电子科技有限公司 | 一种心脏频谱血压计以及心脏频谱检测*** |
CN111685749B (zh) * | 2020-06-18 | 2022-09-02 | 郑昕 | 一种脉搏压力波数学模型的构建方法 |
EP4374780A1 (en) | 2022-11-28 | 2024-05-29 | Koninklijke Philips N.V. | Device for use in blood pressure measurement |
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NL8104879A (nl) | 1981-10-28 | 1983-05-16 | Tno | Werkwijze en inrichting voor het regelen van de manchetdruk bij het meten van de vingerbloeddruk met een foto-electrische plethysmograaf. |
US4958638A (en) * | 1988-06-30 | 1990-09-25 | Georgia Tech Research Corporation | Non-contact vital signs monitor |
JPH05317274A (ja) * | 1992-05-18 | 1993-12-03 | Omron Corp | 電子血圧計 |
US5699807A (en) * | 1994-07-26 | 1997-12-23 | Nihon Kohden Corporation | Blood pressure measuring system |
US6503206B1 (en) * | 2001-07-27 | 2003-01-07 | Vsm Medtech Ltd | Apparatus having redundant sensors for continuous monitoring of vital signs and related methods |
JP2003299627A (ja) * | 2002-04-10 | 2003-10-21 | Omron Corp | 電子血圧計 |
US6662130B1 (en) * | 2002-06-13 | 2003-12-09 | Southwest Research Institute | Systems and methods for calibrating a distorted signal with another signal of known calibration |
US9314170B2 (en) * | 2010-05-07 | 2016-04-19 | Atcor Medical Pty Ltd | Brachial cuff |
CN101897578B (zh) * | 2010-06-30 | 2011-06-29 | 重庆大学 | 一种动脉压信号逐拍分割方法 |
JP5234078B2 (ja) * | 2010-09-29 | 2013-07-10 | 株式会社デンソー | 脈波解析装置および血圧推定装置 |
CN102397064B (zh) * | 2011-12-14 | 2014-02-19 | 中国航天员科研训练中心 | 连续血压测量装置 |
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US20220015718A1 (en) | 2022-01-20 |
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