JP5415461B2 - 心拍出力指示装置及び方法 - Google Patents
心拍出力指示装置及び方法 Download PDFInfo
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- JP5415461B2 JP5415461B2 JP2010549138A JP2010549138A JP5415461B2 JP 5415461 B2 JP5415461 B2 JP 5415461B2 JP 2010549138 A JP2010549138 A JP 2010549138A JP 2010549138 A JP2010549138 A JP 2010549138A JP 5415461 B2 JP5415461 B2 JP 5415461B2
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- 238000000034 method Methods 0.000 title claims description 19
- 238000001914 filtration Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000012774 diagnostic algorithm Methods 0.000 description 6
- 230000035939 shock Effects 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 206010047302 ventricular tachycardia Diseases 0.000 description 4
- 208000010496 Heart Arrest Diseases 0.000 description 3
- 230000002051 biphasic effect Effects 0.000 description 2
- 238000003066 decision tree Methods 0.000 description 2
- 230000033764 rhythmic process Effects 0.000 description 2
- 206010047281 Ventricular arrhythmia Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000006793 arrhythmia Effects 0.000 description 1
- 230000008321 arterial blood flow Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 208000003663 ventricular fibrillation Diseases 0.000 description 1
- 230000000007 visual effect 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
- A61B5/02—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
- A61B5/02—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
- 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
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- 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)
- Hematology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Physiology (AREA)
- Electrotherapy Devices (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Description
a.インピーダンス信号の平均振幅の測度である信号S1を導出するステップ。
b.所定周波数帯内の複数の異なる波長でインピーダンス信号をフィルタリングするステップ。
c.各フィルタに対して、各フィルタ出力の平均振幅の測度である信号S2を導出するステップ。
d.ステップaで導出した信号S1に対する、ステップcで導出した信号S2のうちで最大の信号の比率を算出するステップ。
e.ステップdで導出した比率を用いて、心拍出力の有無を示す信号を提供するステップ。
Claims (9)
- 患者の経胸腔インピーダンスをモニタして、対応するインピーダンス信号を生成する手段と、信号処理手段とを備えている心拍出力指示装置であって、
前記信号処理手段は、
a.前記インピーダンス信号の平均振幅の測度である信号S1を導出するステップと、
b.所定周波数帯内の複数の異なる波長で前記インピーダンス信号をフィルタリングするステップと、
c.各フィルタに対して、各フィルタ出力の平均振幅の測度である信号S2を導出するステップと、
d.前記ステップaで導出した信号S1に対する、前記ステップcで導出した信号S2のうちで最大の信号の比率を算出するステップと、
e.前記ステップdで導出した比率を用いて、心拍出力の有無を示す信号を提供するステップと、
を実行する心拍出力指示装置。 - 前記ステップeは、前記比率を第1の閾値と比較し、前記比率が前記第1の閾値を超える場合には、心拍出力があることを示す信号を生成する、請求項1に記載の心拍出力指示装置。
- 前記ステップeは更に、前記比率が前記第1の閾値を超えない場合には、前記比率を前記第1の閾値よりも小さい第2の閾値と比較し、前記比率が前記第2の閾値を超えない場合には、心拍出力がないことを示す信号を生成することを含む、請求項2に記載の心拍出力指示装置。
- 前記ステップeは更に、前記比率が前記第1の閾値と前記第2の閾値の間である場合には、前記信号S1を第3の閾値と比較し、前記信号S1が前記第3の閾値を超える場合には心拍出力があることを示す信号を生成するも、前記信号S1が前記第3の閾値以下である場合には心拍出力がないことを示す信号を生成することを含む、請求項3に記載の心拍出力指示装置。
- 前記信号S1は、前記インピーダンス信号のRMSを算出することによって導出される、請求項1〜4のいずれか一項に記載の心拍出力指示装置。
- 前記信号S2の各々は、前記各フィルタ出力のRMSを算出することによって導出される、請求項1〜5のいずれか一項に記載の心拍出力指示装置。
- 前記心拍出力指示装置は、前記患者にショックを与えること、及び前記患者の経胸腔インピーダンスを得ることの双方に対する患者電極を備えている自動体外式除細動器の一部を形成する、請求項1〜6のいずれか一項に記載の心拍出力指示装置。
- 前記インピーダンス信号は、前記患者のICGである、請求項1〜7のいずれか一項に記載の心拍出力指示装置。
- 患者の経胸腔インピーダンスをモニタして、対応するインピーダンス信号を生成し、該インピーダンス信号を下記のステップに従って処理する心拍出力指示方法であって、
前記インピーダンス信号を処理するステップは、
a.前記インピーダンス信号の平均振幅の測度である信号S1を導出するステップと、
b.所定周波数帯内の複数の異なる波長で前記インピーダンス信号をフィルタリングするステップと、
c.各フィルタに対して、各フィルタ出力の平均振幅の測度である信号S2を導出するステップと、
d.前記ステップaで導出した信号S1に対する、前記ステップcで導出した信号S2のうちで最大の信号の比率を算出するステップと、
e.前記ステップdで導出した比率を用いて、心拍出力の有無を示す信号を提供するステップと、
を含む、心拍出力指示方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IE20080163 | 2008-03-05 | ||
IES2008/0163 | 2008-03-05 | ||
IES2008/0785 | 2008-09-26 | ||
IE20080785 | 2008-09-26 | ||
PCT/EP2009/052539 WO2009109595A1 (en) | 2008-03-05 | 2009-03-04 | The development and implementation of an adaptive filter technique for the assessment of circulatory collapse. |
Publications (2)
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JP2011512975A JP2011512975A (ja) | 2011-04-28 |
JP5415461B2 true JP5415461B2 (ja) | 2014-02-12 |
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JP2010549138A Active JP5415461B2 (ja) | 2008-03-05 | 2009-03-04 | 心拍出力指示装置及び方法 |
Country Status (5)
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US (1) | US9155482B2 (ja) |
EP (1) | EP2262415B1 (ja) |
JP (1) | JP5415461B2 (ja) |
AU (1) | AU2009221154B2 (ja) |
WO (1) | WO2009109595A1 (ja) |
Families Citing this family (12)
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JP6373006B2 (ja) | 2010-11-29 | 2018-08-15 | ハートサイン テクノロジーズ リミテッド | 体外式除細動器 |
US8868179B2 (en) | 2011-11-11 | 2014-10-21 | Zoll Medical Corporation | Determination for effective defibrillation |
US8948859B2 (en) | 2012-06-11 | 2015-02-03 | Zoll Medical Corporation | Resuscitation enhancements |
EP2968909A4 (en) | 2013-03-14 | 2016-12-07 | Zoll Medical Corp | SHOCK PROTECTION BASED ON PREVIOUS SHOCKS |
JP2016515030A (ja) | 2013-03-14 | 2016-05-26 | ゾール メディカル コーポレイションZOLL Medical Corporation | 患者の循環の状態および以前のショックの成果に基づく処置ガイダンス |
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 |
US9782093B2 (en) | 2014-03-14 | 2017-10-10 | Zoll Medical Corporation | Vector-based shock indication |
US10039925B2 (en) | 2014-06-10 | 2018-08-07 | Zoll Medical Corporation | Determining initial treatments from spectral data |
WO2015191771A1 (en) | 2014-06-10 | 2015-12-17 | Zoll Medical Corporation | Selecting energy escalation for defibrillation |
US11324443B2 (en) | 2015-03-26 | 2022-05-10 | Zoll Medical Corporation | Amplitude spectrum area considerations for an external medical monitoring and treatment device |
US10542961B2 (en) | 2015-06-15 | 2020-01-28 | The Research Foundation For The State University Of New York | System and method for infrasonic cardiac monitoring |
US10716949B2 (en) | 2018-03-19 | 2020-07-21 | Zoll Medical Corporation | Changing cardiac shock delivery parameters based on a transform value |
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US6148233A (en) * | 1997-03-07 | 2000-11-14 | Cardiac Science, Inc. | Defibrillation system having segmented electrodes |
NO310137B1 (no) * | 1998-12-11 | 2001-05-28 | Laerdal Medical As | System for å måle og analysere HLR parametere for anvendelse med og av en ekstern defibrillator |
US20030109790A1 (en) * | 2001-12-06 | 2003-06-12 | Medtronic Physio-Control Manufacturing Corp. | Pulse detection method and apparatus using patient impedance |
US20040116969A1 (en) | 2002-08-26 | 2004-06-17 | Owen James M. | Pulse detection using patient physiological signals |
WO2005112749A1 (en) * | 2004-05-12 | 2005-12-01 | Zoll Medical Corporation | Ecg rhythm advisory method |
JP2008504785A (ja) * | 2004-06-30 | 2008-02-14 | 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 | 知的なチャンネル・ザッピングのための方法および装置 |
FI120961B (fi) * | 2004-07-01 | 2010-05-31 | Emfit Oy | Menetelmä ja laitteisto elintoimintojen tai läsnäolon mittaamiseksi ja valvomiseksi |
WO2006005557A1 (en) * | 2004-07-09 | 2006-01-19 | Heartsine Technologies Limited | Defibrillator with cardiac blood flow determination |
BRPI0515158A (pt) * | 2004-09-13 | 2008-07-08 | Koninkl Philips Electronics Nv | métodos para detecção e/ou medição de comportamento de fluxo, para detecção de um fluxo pulsante de um fluido dentro de um indivìduo, e para detectar se há um fluxo de um fluido dentro do corpo de um indivìduo que experimentou recentemente fibrilação ventricular, e, sistema para detecção e/ou medição de comportamento de fluxo |
CN101548194B (zh) * | 2006-05-12 | 2012-12-26 | 因维沃公司 | 用于mri兼容的无线患者监视器的电池系统 |
US8262581B2 (en) * | 2006-12-11 | 2012-09-11 | National Cerebral And Cardiovascular Center | Solid tissue impedance estimating method, cardiac output calculating method, pulmonary artery wedge pressure calculating method, cardiac output monitoring device, cardiac output monitoring system, pulmonary artery wedge pressure monitoring device, and pulmonary artery wedge pressure monitoring system |
US8290577B2 (en) * | 2007-03-23 | 2012-10-16 | Brooks Donald J | Methods and apparatus for enhanced fiducial point determination and non-invasive hemodynamic parameter determination |
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2009
- 2009-03-04 EP EP09717943.6A patent/EP2262415B1/en active Active
- 2009-03-04 WO PCT/EP2009/052539 patent/WO2009109595A1/en active Application Filing
- 2009-03-04 US US12/920,708 patent/US9155482B2/en active Active
- 2009-03-04 AU AU2009221154A patent/AU2009221154B2/en active Active
- 2009-03-04 JP JP2010549138A patent/JP5415461B2/ja active Active
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EP2262415A1 (en) | 2010-12-22 |
AU2009221154A1 (en) | 2009-09-11 |
JP2011512975A (ja) | 2011-04-28 |
AU2009221154B2 (en) | 2015-02-05 |
WO2009109595A1 (en) | 2009-09-11 |
US20110021938A1 (en) | 2011-01-27 |
US9155482B2 (en) | 2015-10-13 |
EP2262415B1 (en) | 2014-05-07 |
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