JP4914551B2 - 血流の生体電気インピーダンス分析の装置および方法 - Google Patents

血流の生体電気インピーダンス分析の装置および方法 Download PDF

Info

Publication number
JP4914551B2
JP4914551B2 JP2001542816A JP2001542816A JP4914551B2 JP 4914551 B2 JP4914551 B2 JP 4914551B2 JP 2001542816 A JP2001542816 A JP 2001542816A JP 2001542816 A JP2001542816 A JP 2001542816A JP 4914551 B2 JP4914551 B2 JP 4914551B2
Authority
JP
Japan
Prior art keywords
sensing electrodes
orthogonal pairs
patient
electrode
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2001542816A
Other languages
English (en)
Japanese (ja)
Other versions
JP2003527164A (ja
JP2003527164A5 (enExample
Inventor
アーサー ダブリュー． ウォラス，
アシャー シュムレウィツ，
Original Assignee
コンメッド コーポレイション
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by コンメッド コーポレイション filed Critical コンメッド コーポレイション
Publication of JP2003527164A publication Critical patent/JP2003527164A/ja
Publication of JP2003527164A5 publication Critical patent/JP2003527164A5/ja
Application granted granted Critical
Publication of JP4914551B2 publication Critical patent/JP4914551B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • A61B5/02—Detecting, measuring or recording for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/026—Measuring blood flow
    • A61B5/029—Measuring 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 for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • 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
    • A61B5/0538—Measuring electrical impedance or conductance of a portion of the body invasively, e.g. using a catheter

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Electrotherapy Devices (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
JP2001542816A 1999-12-08 2000-12-04 血流の生体電気インピーダンス分析の装置および方法 Expired - Fee Related JP4914551B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/458,186 US6292689B1 (en) 1996-04-17 1999-12-08 Apparatus and methods of bioelectrical impedance analysis of blood flow
US09/458,186 1999-12-08
PCT/US2000/032792 WO2001041638A1 (en) 1999-12-08 2000-12-04 Apparatus and methods of bioelectrical impedance analysis of blood flow

Publications (3)

Publication Number Publication Date
JP2003527164A JP2003527164A (ja) 2003-09-16
JP2003527164A5 JP2003527164A5 (enExample) 2008-01-24
JP4914551B2 true JP4914551B2 (ja) 2012-04-11

Family

ID=23819721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001542816A Expired - Fee Related JP4914551B2 (ja) 1999-12-08 2000-12-04 血流の生体電気インピーダンス分析の装置および方法

Country Status (6)

Country Link
US (1) US6292689B1 (enExample)
EP (1) EP1235514B1 (enExample)
JP (1) JP4914551B2 (enExample)
AU (1) AU781264B2 (enExample)
CA (1) CA2393008A1 (enExample)
WO (1) WO2001041638A1 (enExample)

Families Citing this family (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6445942B1 (en) * 1999-09-15 2002-09-03 Resmed Ltd Measurement of respiratory effort using a suprasternal sensor
US6758216B1 (en) 1999-09-15 2004-07-06 Resmed Limited Ventilatory assistance using an external effort sensor
US6517492B2 (en) * 2001-02-22 2003-02-11 Texon Technologies Ltd. Method and apparatus for assessment of cardiac function by monitoring movement of the trachea
US6907288B2 (en) * 2001-04-10 2005-06-14 Cardiac Pacemakers, Inc. Cardiac rhythm management system adjusting rate response factor for treating hypotension
US6912420B2 (en) * 2001-04-10 2005-06-28 Cardiac Pacemakers, Inc. Cardiac rhythm management system for hypotension
US7191000B2 (en) 2001-07-31 2007-03-13 Cardiac Pacemakers, Inc. Cardiac rhythm management system for edema
AU2003213129A1 (en) * 2002-04-15 2003-11-03 Boasso America Corporation (A Louisiana Corporation) Method and apparatus for supplying bulk product to an end user
AUPS214502A0 (en) * 2002-05-06 2002-06-06 Uscom Pty Ltd Blood flow oxygen measurement
AUPS335502A0 (en) * 2002-07-03 2002-07-25 Uscom Pty Ltd Pacemaker evaluation method and apparatus
US7043293B1 (en) 2002-12-24 2006-05-09 Cardiodynamics International Corporation Method and apparatus for waveform assessment
AU2003900261A0 (en) * 2003-01-22 2003-02-06 Uscom Pty Ltd Method and system for the determination of blood characteristics
CN1326487C (zh) * 2003-06-18 2007-07-18 魏蔚 经气管进行医用监测的装置
US7455643B1 (en) 2003-07-07 2008-11-25 Nellcor Puritan Bennett Ireland Continuous non-invasive blood pressure measurement apparatus and methods providing automatic recalibration
TW200534827A (en) * 2004-03-24 2005-11-01 Noninvasive Medical Technologies Llc Thoracic impedance monitor and electrode array and method of use
WO2005110051A2 (en) * 2004-05-10 2005-11-24 Transoma Medical, Inc. Portable device for monitoring electrocardiographic signals and indices of blood flow
US20060004301A1 (en) * 2004-06-24 2006-01-05 Kasevich Raymond S Clinical application of electrical impedance tomography to characterize tissue
US7356366B2 (en) * 2004-08-02 2008-04-08 Cardiac Pacemakers, Inc. Device for monitoring fluid status
US7387610B2 (en) 2004-08-19 2008-06-17 Cardiac Pacemakers, Inc. Thoracic impedance detection with blood resistivity compensation
DE602004032070D1 (de) * 2004-11-18 2011-05-12 Japan Health Science Found System zur behandlung von herzkrankheiten
US20060111641A1 (en) * 2004-11-19 2006-05-25 Applied Cardiac Systems, Inc. System and method for ICG recording and analysis
US7570989B2 (en) * 2004-11-22 2009-08-04 Cardiodynamics International Corporation Method and apparatus for signal assessment including event rejection
US7630763B2 (en) 2005-04-20 2009-12-08 Cardiac Pacemakers, Inc. Thoracic or intracardiac impedance detection with automatic vector selection
US7603170B2 (en) * 2005-04-26 2009-10-13 Cardiac Pacemakers, Inc. Calibration of impedance monitoring of respiratory volumes using thoracic D.C. impedance
US9089275B2 (en) 2005-05-11 2015-07-28 Cardiac Pacemakers, Inc. Sensitivity and specificity of pulmonary edema detection when using transthoracic impedance
US7907997B2 (en) 2005-05-11 2011-03-15 Cardiac Pacemakers, Inc. Enhancements to the detection of pulmonary edema when using transthoracic impedance
US7340296B2 (en) 2005-05-18 2008-03-04 Cardiac Pacemakers, Inc. Detection of pleural effusion using transthoracic impedance
US9839781B2 (en) 2005-08-22 2017-12-12 Cardiac Pacemakers, Inc. Intracardiac impedance and its applications
US8116858B2 (en) * 2005-08-22 2012-02-14 John Koblanski Methods and apparatus for monitoring heart motions
EP2219517B1 (en) * 2007-10-12 2019-03-06 ConMed Corporation Apparatus for the measurement of cardiac output and method for its fabrication
US20090299269A1 (en) * 2008-05-29 2009-12-03 John Foley Vascular stimulation to aid intravascular cell replacement therapy
US8660799B2 (en) 2008-06-30 2014-02-25 Nellcor Puritan Bennett Ireland Processing and detecting baseline changes in signals
US8398556B2 (en) 2008-06-30 2013-03-19 Covidien Lp Systems and methods for non-invasive continuous blood pressure determination
US8506498B2 (en) 2008-07-15 2013-08-13 Nellcor Puritan Bennett Ireland Systems and methods using induced perturbation to determine physiological parameters
US8702613B2 (en) * 2008-09-22 2014-04-22 3Dt Holdings, Llc Methods for determining fractional flow reserve
US9301697B2 (en) 2008-09-30 2016-04-05 Nellcor Puritan Bennett Ireland Systems and methods for recalibrating a non-invasive blood pressure monitor
US9314168B2 (en) 2008-09-30 2016-04-19 Nellcor Puritan Bennett Ireland Detecting sleep events using localized blood pressure changes
US8532751B2 (en) 2008-09-30 2013-09-10 Covidien Lp Laser self-mixing sensors for biological sensing
US9687161B2 (en) 2008-09-30 2017-06-27 Nellcor Puritan Bennett Ireland Systems and methods for maintaining blood pressure monitor calibration
US8386010B2 (en) * 2008-10-23 2013-02-26 Covidien Lp Surgical tissue monitoring system
PL2370015T3 (pl) 2008-11-11 2017-07-31 Shifamed Holdings, Llc Niskoprofilowy zespół elektrodowy
US9795442B2 (en) 2008-11-11 2017-10-24 Shifamed Holdings, Llc Ablation catheters
US8216136B2 (en) 2009-03-05 2012-07-10 Nellcor Puritan Bennett Llc Systems and methods for monitoring heart rate and blood pressure correlation
CA2764859C (en) 2009-06-24 2018-09-25 Shifamed, Llc Steerable medical delivery devices and methods of use
US8290730B2 (en) 2009-06-30 2012-10-16 Nellcor Puritan Bennett Ireland Systems and methods for assessing measurements in physiological monitoring devices
US9198582B2 (en) 2009-06-30 2015-12-01 Nellcor Puritan Bennett Ireland Determining a characteristic physiological parameter
US8628477B2 (en) 2009-07-31 2014-01-14 Nellcor Puritan Bennett Ireland Systems and methods for non-invasive determination of blood pressure
US8467844B2 (en) * 2009-09-21 2013-06-18 Neurovision Medical Products, Inc. Electrode for prolonged monitoring of laryngeal electromyography
US9220440B2 (en) 2009-09-21 2015-12-29 Nellcor Puritan Bennett Ireland Determining a characteristic respiration rate
JP5721721B2 (ja) * 2009-09-23 2015-05-20 ライトラボ・イメージング・インコーポレーテッド 管腔形態および血管抵抗測定データ収集のシステム、装置および方法
US12426789B2 (en) 2009-09-23 2025-09-30 Lightlab Imaging, Inc. Blood vessel lumen morphology and minimum lumen area measurements data collection by intravascular imaging systems for stenosis or stent planning
US9066660B2 (en) 2009-09-29 2015-06-30 Nellcor Puritan Bennett Ireland Systems and methods for high-pass filtering a photoplethysmograph signal
US8463347B2 (en) 2009-09-30 2013-06-11 Nellcor Puritan Bennett Ireland Systems and methods for normalizing a plethysmograph signal for improved feature analysis
WO2011041684A2 (en) 2009-10-02 2011-04-07 Medtronic-Xomed, Inc. Endotracheal tube apparatus
US20110213264A1 (en) * 2010-02-26 2011-09-01 Nellcor Puritan Bennett Llc Sensor on non-sealing portion of tracheal tube cuff
JP5836979B2 (ja) 2010-03-04 2015-12-24 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 多機能栄養管
WO2011116303A1 (en) 2010-03-19 2011-09-22 Micropen Technologies Corporation Thermocouple device
CN102917748B (zh) 2010-03-24 2015-04-01 施菲姆德控股有限责任公司 血管内组织破坏
US9451887B2 (en) 2010-03-31 2016-09-27 Nellcor Puritan Bennett Ireland Systems and methods for measuring electromechanical delay of the heart
US8898037B2 (en) 2010-04-28 2014-11-25 Nellcor Puritan Bennett Ireland Systems and methods for signal monitoring using Lissajous figures
US9655677B2 (en) 2010-05-12 2017-05-23 Shifamed Holdings, Llc Ablation catheters including a balloon and electrodes
CN105105844B (zh) 2010-05-12 2017-12-15 施菲姆德控股有限责任公司 小轮廓的电极组件
GB2496074B (en) * 2010-07-13 2016-07-20 Sandhill Scient Inc Apparatus and method for detecting and measuring condition of esophageal mucosa and indications of gastroesophageal reflux disease
US8825428B2 (en) 2010-11-30 2014-09-02 Neilcor Puritan Bennett Ireland Methods and systems for recalibrating a blood pressure monitor with memory
US9259160B2 (en) 2010-12-01 2016-02-16 Nellcor Puritan Bennett Ireland Systems and methods for determining when to measure a physiological parameter
US9357934B2 (en) 2010-12-01 2016-06-07 Nellcor Puritan Bennett Ireland Systems and methods for physiological event marking
JP6527329B2 (ja) 2011-05-03 2019-06-05 シファメド・ホールディングス・エルエルシー 操縦可能な送達シース
US20140243821A1 (en) 2011-09-30 2014-08-28 Covidien Lp Energy delivery device and methods of use
US9060695B2 (en) 2011-11-30 2015-06-23 Covidien Lp Systems and methods for determining differential pulse transit time from the phase difference of two analog plethysmographs
US9931079B2 (en) 2012-01-04 2018-04-03 Medtronic Xomed, Inc. Clamp for securing a terminal end of a wire to a surface electrode
US8961550B2 (en) 2012-04-17 2015-02-24 Indian Wells Medical, Inc. Steerable endoluminal punch
US9226792B2 (en) 2012-06-12 2016-01-05 Medtronic Advanced Energy Llc Debridement device and method
US9060744B2 (en) 2012-11-29 2015-06-23 Medtronic Xomed, Inc. Endobronchial tube apparatus
US9913594B2 (en) 2013-03-14 2018-03-13 Medtronic Xomed, Inc. Compliant electrode for EMG endotracheal tube
US10349824B2 (en) 2013-04-08 2019-07-16 Apama Medical, Inc. Tissue mapping and visualization systems
CN105228547B (zh) 2013-04-08 2019-05-14 阿帕玛医疗公司 心脏消融导管
US10098694B2 (en) 2013-04-08 2018-10-16 Apama Medical, Inc. Tissue ablation and monitoring thereof
US11207130B2 (en) 2015-02-18 2021-12-28 Medtronic Xomed, Inc. RF energy enabled tissue debridement device
US10376302B2 (en) 2015-02-18 2019-08-13 Medtronic Xomed, Inc. Rotating electrical connector for RF energy enabled tissue debridement device
US10188456B2 (en) 2015-02-18 2019-01-29 Medtronic Xomed, Inc. Electrode assembly for RF energy enabled tissue debridement device
US9451888B1 (en) 2015-03-27 2016-09-27 Cordeus, Inc. Method and apparatus for determination of left ventricular stroke volume and cardiac output using the arteries of the forearm
CA2979884A1 (en) 2015-03-27 2016-10-06 Shifamed Holdings, Llc Steerable medical devices, systems, and methods of use
CA2982823A1 (en) 2015-04-24 2016-10-27 Shifamed Holdings, Llc Steerable medical devices, systems, and methods of use
EP3750477A1 (en) * 2015-05-07 2020-12-16 Ecom Medical, Inc. Systems and method for fabricating invasive ecg probe
EP3373794B1 (en) 2015-11-09 2022-01-05 Kalila Medical, Inc. Steering assemblies for medical devices
CN108348146A (zh) 2015-11-16 2018-07-31 阿帕玛医疗公司 能量传递装置
US11147515B2 (en) 2016-02-16 2021-10-19 Ecom Medical, Inc. Systems and methods for obtaining cardiovascular parameters
WO2018035000A1 (en) 2016-08-13 2018-02-22 Ecom Medical, Inc. Medical devices with layered conductive elements and methods for manufacturing the same
US11266467B2 (en) 2016-10-25 2022-03-08 Navix International Limited Systems and methods for registration of intra-body electrical readings with a pre-acquired three dimensional image
KR101812587B1 (ko) 2016-11-18 2018-01-30 주식회사 바이랩 피험자의 영상 모니터링 장치 및 그 방법과, 영상 모니터링 시스템
US11730395B2 (en) 2017-01-12 2023-08-22 Navix International Limited Reconstruction of an anatomical structure from intrabody measurements
US11471067B2 (en) 2017-01-12 2022-10-18 Navix International Limited Intrabody probe navigation by electrical self-sensing
EP3568068A1 (en) * 2017-01-12 2019-11-20 Navix International Limited Systems and methods for reconstruction of intra-body electrical readings to anatomical structure
US11583202B2 (en) 2017-08-17 2023-02-21 Navix International Limited Field gradient-based remote imaging
CA3072055A1 (en) 2017-08-21 2019-02-28 Ecom Medical, Inc. Systems and methods for applying materials to medical devices
US11110240B2 (en) 2017-09-07 2021-09-07 Medtronic Xomed, Inc. Endotracheal tube with tube coating
US11376421B2 (en) * 2017-11-09 2022-07-05 The Methodist Hospital System Neurostimulation induced medicine devices and related methods of use
US10524668B2 (en) 2018-02-05 2020-01-07 Aerobex, Inc. Method and apparatus for determination of left ventricular stroke volume and cardiac output using the arteries of the forearm by means of integration technique
US11291382B2 (en) 2018-06-01 2022-04-05 Diversatek Healthcare, Inc. System and method for detecting and measuring the condition of intraluminal esophageal mucosa
US20250302328A1 (en) 2024-03-28 2025-10-02 Anusar Inc. Device and method for real time assessment and monitoring of thoracic fluid, air trapping and ventilation

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149627A (en) * 1962-04-25 1964-09-22 Samuel M Bagno Plethysmograph
US3340867A (en) 1964-08-19 1967-09-12 Univ Minnesota Impedance plethysmograph
USRE30101E (en) * 1964-08-19 1979-09-25 Regents Of The University Of Minnesota Impedance plethysmograph
US3651318A (en) 1970-01-26 1972-03-21 Jan A Czekajewski Cardiac output computer
US3726269A (en) 1971-11-24 1973-04-10 W Webster Cardiovascular catheter for thermal dilution measurement
SE363230B (enExample) 1973-02-09 1974-01-14 Hoffmann La Roche
US4437469A (en) 1980-09-29 1984-03-20 Rush-Presbyterian-St. Luke's Medical Center System for determining characteristics of blood flow
US4450527A (en) 1982-06-29 1984-05-22 Bomed Medical Mfg. Ltd. Noninvasive continuous cardiac output monitor
GB8431500D0 (en) 1984-12-13 1985-01-23 Antec Systems Measurement of thoracic impedances
US4671295A (en) 1985-01-15 1987-06-09 Applied Biometrics, Inc. Method for measuring cardiac output
US4722347A (en) 1985-01-15 1988-02-02 Applied Biometrics, Inc. Apparatus for measuring cardiac output
US4852580A (en) 1986-09-17 1989-08-01 Axiom Medical, Inc. Catheter for measuring bioimpedance
US4836214A (en) 1986-12-01 1989-06-06 Bomed Medical Manufacturing, Ltd. Esophageal electrode array for electrical bioimpedance measurement
US4870578A (en) 1987-08-19 1989-09-26 Bomed Medical Manufacturing, Ltd. Diastolic clamp for bioimpedance measuring device
US5000190A (en) * 1988-06-22 1991-03-19 The Cleveland Clinic Foundation Continuous cardiac output by impedance measurements in the heart
US4967759A (en) 1988-06-29 1990-11-06 Teves Leonides Y Cardiac monitor with endotracheal sensor
US5080107A (en) 1988-06-29 1992-01-14 Teves Leonides Y Cardiac monitor with endotracheal sensor
DE3900178A1 (de) 1989-01-05 1990-07-12 Paul Peter Prof D Lunkenheimer Vorrichtung zur durchfuehrung diagnostischer impedanzmessungen
US5125406A (en) 1989-11-29 1992-06-30 Eet Limited Partnership (Del) Electrode endotracheal tube
US5024228A (en) 1989-11-29 1991-06-18 Goldstone Andrew C Electrode endotracheal tube
US5005573A (en) 1990-07-20 1991-04-09 Buchanan Dale C Endotracheal tube with oximetry means
US5063937A (en) * 1990-09-12 1991-11-12 Wright State University Multiple frequency bio-impedance measurement system
US5203344A (en) 1991-01-31 1993-04-20 Brigham And Women's Hospital Method and apparatus for taking bioelectrical impedance measurements using proximally positioned electrodes
US5379765A (en) 1991-06-12 1995-01-10 Kajiwara; Nagao Monitoring apparatus for use in obtaining bronchial electrocardiogram
JP2855556B2 (ja) * 1991-12-06 1999-02-10 長雄 梶原 気管支誘導心電図の測定装置
DE4205336C1 (enExample) 1992-02-21 1993-05-13 Gsf - Forschungszentrum Fuer Umwelt Und Gesundheit, Gmbh, 8000 Muenchen, De
IL102300A (en) 1992-06-24 1996-07-23 N I Medical Ltd Non-invasive system for determining of the main cardiorespiratory parameters of the human body
US5477860A (en) 1992-11-05 1995-12-26 Synectics Medical, Inc. Catheter for measuring respiration and respiratory effort
US5385146A (en) * 1993-01-08 1995-01-31 Goldreyer; Bruce N. Orthogonal sensing for use in clinical electrophysiology
US5487391A (en) * 1994-01-28 1996-01-30 Ep Technologies, Inc. Systems and methods for deriving and displaying the propagation velocities of electrical events in the heart
DE19533663A1 (de) * 1995-09-12 1997-03-13 Heinemann & Gregori Gmbh Verfahren und Vorrichtung zur Herzzeitvolumenbestimmung
US5697377A (en) * 1995-11-22 1997-12-16 Medtronic, Inc. Catheter mapping system and method
US5782774A (en) * 1996-04-17 1998-07-21 Imagyn Medical Technologies California, Inc. Apparatus and method of bioelectrical impedance analysis of blood flow

Also Published As

Publication number Publication date
US6292689B1 (en) 2001-09-18
JP2003527164A (ja) 2003-09-16
WO2001041638A1 (en) 2001-06-14
EP1235514B1 (en) 2014-01-15
EP1235514A1 (en) 2002-09-04
CA2393008A1 (en) 2001-06-14
AU781264B2 (en) 2005-05-12
AU1941201A (en) 2001-06-18
EP1235514A4 (en) 2007-08-08

Similar Documents

Publication Publication Date Title
JP4914551B2 (ja) 血流の生体電気インピーダンス分析の装置および方法
US6095987A (en) Apparatus and methods of bioelectrical impedance analysis of blood flow
US5791349A (en) Apparatus and method of bioelectrical impedance analysis of blood flow
CN100571613C (zh) 测量血流和血容量的系统、方法和装置
KR101498305B1 (ko) 심장 지표들의 비침습적 측정을 위한 방법 및 시스템
US4836214A (en) Esophageal electrode array for electrical bioimpedance measurement
US10617322B2 (en) System, method and apparatus for measuring blood flow and blood volume
JP4739753B2 (ja) 生体インピーダンス法を用いて鬱血性心不全患者をモニタするための装置
US20020123674A1 (en) Process and implantable device for the intrapulmonary assessing of density dependant physical properties of the lung tissue
US6496732B1 (en) Internal cardiac output monitor
US12016826B2 (en) Systems and methods for bioimpedance body composition measurement
Bronzino Bioelectric Impedance Measurements

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20070620

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20070620

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071128

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20071128

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20100726

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20100802

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20100726

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101026

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20110125

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20110201

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110228

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110927

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111219

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120117

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120123

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150127

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees