WO2006088805A3 - Pathology assessment with impedance measurements using convergent bioelectric lead fields - Google Patents

Pathology assessment with impedance measurements using convergent bioelectric lead fields Download PDF

Info

Publication number
WO2006088805A3
WO2006088805A3 PCT/US2006/005060 US2006005060W WO2006088805A3 WO 2006088805 A3 WO2006088805 A3 WO 2006088805A3 US 2006005060 W US2006005060 W US 2006005060W WO 2006088805 A3 WO2006088805 A3 WO 2006088805A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrodes
assessment
potential difference
pathology
impedance measurements
Prior art date
Application number
PCT/US2006/005060
Other languages
French (fr)
Other versions
WO2006088805A2 (en
Inventor
Andres Belalcazar
Robert Patterson
Original Assignee
Univ Minnesota
Andres Belalcazar
Robert Patterson
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 Univ Minnesota, Andres Belalcazar, Robert Patterson filed Critical Univ Minnesota
Priority to EP06734952A priority Critical patent/EP1848334A4/en
Priority to JP2007555322A priority patent/JP2008529678A/en
Publication of WO2006088805A2 publication Critical patent/WO2006088805A2/en
Publication of WO2006088805A3 publication Critical patent/WO2006088805A3/en
Priority to HK08111453.9A priority patent/HK1119550A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/41—Detecting, measuring or recording for evaluating the immune or lymphatic systems
    • A61B5/414—Evaluating particular organs or parts of the immune or lymphatic systems
    • A61B5/416—Evaluating particular organs or parts of the immune or lymphatic systems the spleen
    • 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
    • A61B5/0537—Measuring body composition by impedance, e.g. tissue hydration or fat content
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4519—Muscles

Abstract

A method and apparatus for measuring impedance for pathology assessment in a living being using convergent bioelectric lead fields is disclosed, including injecting a current between first and second electrodes implanted in a body of a living being, where the first and second electrodes define a first electric lead field oriented between the first and second electrodes. A potential difference is measured between third and fourth electrodes implanted in the body, where the potential difference results from the current injected between the first and second electrodes. The third and fourth electrodes define a second electric lead field oriented between the third and fourth electrodes. The first and second electric lead fields converge near an assessment site within the body, but are substantially separated otherwise. An impedance value is calculated based on the potential difference and the current injection, and is used to assess a pathology near the assessment site.
PCT/US2006/005060 2005-02-15 2006-02-14 Pathology assessment with impedance measurements using convergent bioelectric lead fields WO2006088805A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06734952A EP1848334A4 (en) 2005-02-15 2006-02-14 Pathology assessment with impedance measurements using convergent bioelectric lead fields
JP2007555322A JP2008529678A (en) 2005-02-15 2006-02-14 Pathological evaluation by impedance measurement using convergent bioelectric field
HK08111453.9A HK1119550A1 (en) 2005-02-15 2008-10-16 Pathology assessment with impedance measurements using convergent bioelectric lead fields

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/058,123 2005-02-15
US11/058,123 US7447543B2 (en) 2005-02-15 2005-02-15 Pathology assessment with impedance measurements using convergent bioelectric lead fields

Publications (2)

Publication Number Publication Date
WO2006088805A2 WO2006088805A2 (en) 2006-08-24
WO2006088805A3 true WO2006088805A3 (en) 2007-12-13

Family

ID=36816587

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/005060 WO2006088805A2 (en) 2005-02-15 2006-02-14 Pathology assessment with impedance measurements using convergent bioelectric lead fields

Country Status (6)

Country Link
US (1) US7447543B2 (en)
EP (1) EP1848334A4 (en)
JP (1) JP2008529678A (en)
CN (1) CN100584270C (en)
HK (1) HK1119550A1 (en)
WO (1) WO2006088805A2 (en)

Families Citing this family (98)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3045136B1 (en) 2003-09-12 2021-02-24 Vessix Vascular, Inc. Selectable eccentric remodeling and/or ablation of atherosclerotic material
JP4542793B2 (en) * 2004-02-02 2010-09-15 株式会社タニタ Impedance type reaction capacity measuring device
US8920414B2 (en) 2004-09-10 2014-12-30 Vessix Vascular, Inc. Tuned RF energy and electrical tissue characterization for selective treatment of target tissues
US8396548B2 (en) 2008-11-14 2013-03-12 Vessix Vascular, Inc. Selective drug delivery in a lumen
CN101511292B (en) * 2005-03-28 2011-04-06 明诺医学有限公司 Intraluminal electrical tissue characterization and tuned RF energy for selective treatment of atheroma and other target tissues
WO2007002991A1 (en) 2005-07-01 2007-01-11 Impedimed Limited Monitoring system
JP2008544777A (en) 2005-07-01 2008-12-11 インぺディメッド リミテッド Monitoring system
CA2625631C (en) 2005-10-11 2016-11-29 Impedance Cardiology Systems, Inc. Hydration status monitoring
AT502921B1 (en) * 2005-10-21 2012-01-15 Falko Dr Skrabal DEVICE FOR MEASURING HEART AND VESSEL FUNCTION (FUNCTION) AND BODY SPACES (SPACES) BY MEANS OF IMPEDANCE MEASUREMENT
US7844331B2 (en) * 2005-12-20 2010-11-30 Cardiac Pacemakers, Inc. Method and apparatus for controlling anti-tachyarrhythmia pacing using hemodynamic sensor
CN101506798A (en) * 2006-03-22 2009-08-12 皇家飞利浦电子股份有限公司 Respiration-gated cardiography
US8600497B1 (en) 2006-03-31 2013-12-03 Pacesetter, Inc. Systems and methods to monitor and treat heart failure conditions
US8712519B1 (en) 2006-03-31 2014-04-29 Pacesetter, Inc. Closed-loop adaptive adjustment of pacing therapy based on cardiogenic impedance signals detected by an implantable medical device
US7794404B1 (en) 2006-03-31 2010-09-14 Pacesetter, Inc System and method for estimating cardiac pressure using parameters derived from impedance signals detected by an implantable medical device
US7640056B2 (en) * 2006-05-18 2009-12-29 Cardiac Pacemakers, Inc. Monitoring fluid in a subject using an electrode configuration providing negative sensitivity regions
US7894900B2 (en) * 2006-08-30 2011-02-22 Smartimplant OÜ Device and method for monitoring cardiac pacing rate
CA2663897C (en) * 2006-09-19 2015-01-06 Gambro Lundia Ab Estimation of propensity to symptomatic hypotension
EP2070378B1 (en) * 2006-09-25 2010-11-24 St. Jude Medical AB Medical device comprising an impedance measurement means to measure visceral fat.
EP2076194B1 (en) 2006-10-18 2013-04-24 Vessix Vascular, Inc. System for inducing desirable temperature effects on body tissue
EP2992850A1 (en) 2006-10-18 2016-03-09 Vessix Vascular, Inc. Inducing desirable temperature effects on body tissue
US8014863B2 (en) 2007-01-19 2011-09-06 Cardiac Pacemakers, Inc. Heart attack or ischemia detector
US7391257B1 (en) * 2007-01-31 2008-06-24 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US9615744B2 (en) * 2007-01-31 2017-04-11 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US7385443B1 (en) * 2007-01-31 2008-06-10 Medtronic, Inc. Chopper-stabilized instrumentation amplifier
US8265769B2 (en) * 2007-01-31 2012-09-11 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for wireless telemetry
US8862221B2 (en) * 2007-02-21 2014-10-14 St. Jude Medical Ab Monitoring mechanical heart properties
ATE512693T1 (en) * 2007-02-28 2011-07-15 St Jude Medical HEART STIMULATOR WITH AN IMPEDANCE MEASUREMENT CIRCUIT FOR DETECTING ISCHEMIA
EP2114526B1 (en) * 2007-02-28 2012-08-01 St. Jude Medical AB Device for detecting a myocardial infarction and treating the myocardial infarction using therapeutic light
US8208999B2 (en) 2007-04-04 2012-06-26 Pacesetter, Inc. System and method for estimating electrical conduction delays from immittance values measured using an implantable medical device
US8504153B2 (en) 2007-04-04 2013-08-06 Pacesetter, Inc. System and method for estimating cardiac pressure based on cardiac electrical conduction delays using an implantable medical device
ES2473278T3 (en) 2007-04-20 2014-07-04 Impedimed Limited Probe and monitoring system
US8496653B2 (en) 2007-04-23 2013-07-30 Boston Scientific Scimed, Inc. Thrombus removal
US8781595B2 (en) 2007-04-30 2014-07-15 Medtronic, Inc. Chopper mixer telemetry circuit
US7930022B2 (en) * 2007-05-07 2011-04-19 Cardiac Pacemakers, Inc. System and method to determine hemodynamic tolerability
US7970462B2 (en) * 2007-05-29 2011-06-28 Biotronik Crm Patent Ag Implantable medical devices evaluating thorax impedance
US8070686B2 (en) * 2007-07-02 2011-12-06 Cardiac Pacemakers, Inc. Monitoring lung fluid status using the cardiac component of a thoracic impedance-indicating signal
AU2008286194B2 (en) 2007-08-09 2014-05-15 Impedimed Limited Impedance measurement process
US8831716B2 (en) * 2007-09-11 2014-09-09 Cardiac Pacemakers, Inc. Histogram-based thoracic impedance monitoring
WO2009042172A2 (en) * 2007-09-26 2009-04-02 Medtronic, Inc. Frequency selective monitoring of physiological signals
US8380314B2 (en) 2007-09-26 2013-02-19 Medtronic, Inc. Patient directed therapy control
WO2009051638A1 (en) 2007-10-16 2009-04-23 Medtronic, Inc. Therapy control based on a patient movement state
US20090118626A1 (en) * 2007-11-01 2009-05-07 Transoma Medical, Inc. Calculating Respiration Parameters Using Impedance Plethysmography
US8630700B2 (en) * 2007-12-19 2014-01-14 St. Jude Medical, AB Implantable heart monitoring device, system and method
WO2009094050A1 (en) 2008-01-25 2009-07-30 Medtronic, Inc. Sleep stage detection
EP2247238B1 (en) * 2008-01-29 2013-10-23 St. Jude Medical AB Mplantable medical device (imd) for monitoring permeability status of cell membranes.
US9199075B1 (en) * 2008-02-07 2015-12-01 Respicardia, Inc. Transvascular medical lead
US20090275854A1 (en) * 2008-04-30 2009-11-05 Zielinski Todd M System and method of monitoring physiologic parameters based on complex impedance waveform morphology
US8744565B2 (en) 2008-04-30 2014-06-03 Medtronic, Inc. Multi-frequency impedance monitoring system
EP2303401B1 (en) 2008-06-19 2016-11-23 Cardiac Pacemakers, Inc. Cardiac rhythm management system with hemodynamic tolerability analyzer
US20090326408A1 (en) * 2008-06-30 2009-12-31 Loell Boyce Moon Providing Impedance Plethysmography Electrodes
US8200340B2 (en) * 2008-07-11 2012-06-12 Medtronic, Inc. Guided programming for posture-state responsive therapy
US8504150B2 (en) 2008-07-11 2013-08-06 Medtronic, Inc. Associating therapy adjustments with posture states using a stability timer
US8788042B2 (en) 2008-07-30 2014-07-22 Ecole Polytechnique Federale De Lausanne (Epfl) Apparatus and method for optimized stimulation of a neurological target
US8032212B2 (en) * 2008-09-15 2011-10-04 Pacesetter, Inc. System and method for monitoring thoracic fluid levels based on impedance using an implantable medical device
EP2348970A1 (en) * 2008-10-10 2011-08-03 Regents of the University of Minnesota Improved monitor of heart failure using bioimpedance
US8914101B2 (en) 2008-10-30 2014-12-16 Medtronic, Inc. System and method to localize changes in intrathoracic fluid content using measured impedance in an implantable device
US20100113964A1 (en) * 2008-10-31 2010-05-06 Wahlstrand John D Determining intercardiac impedance
US8478402B2 (en) * 2008-10-31 2013-07-02 Medtronic, Inc. Determining intercardiac impedance
US8788064B2 (en) 2008-11-12 2014-07-22 Ecole Polytechnique Federale De Lausanne Microfabricated neurostimulation device
US8050760B2 (en) * 2008-11-13 2011-11-01 Pacesetter, Inc. System and method for evaluating mechanical cardiac dyssynchrony based on multiple impedance vectors using an implantable medical device
CA2743992A1 (en) 2008-11-17 2010-05-20 Minnow Medical, Inc. Selective accumulation of energy with or without knowledge of tissue topography
US9050016B2 (en) * 2009-02-10 2015-06-09 Siemens Medical Solutions Usa, Inc. System for heart performance characterization and abnormality detection
KR101036053B1 (en) * 2009-03-30 2011-05-19 주식회사 바이오스페이스 Apparatus and method for measuring bio-Impedance
US8551096B2 (en) 2009-05-13 2013-10-08 Boston Scientific Scimed, Inc. Directional delivery of energy and bioactives
US8473054B2 (en) 2009-05-28 2013-06-25 Pacesetter, Inc. System and method for detecting pulmonary edema based on impedance measured using an implantable medical device during a lead maturation interval
US20120184866A1 (en) * 2009-09-29 2012-07-19 St. Jude Medical Ab Implantable medical device and method for multisite measurement of intracardiac impedance
JP5431110B2 (en) * 2009-10-21 2014-03-05 知大 白石 System for monitoring thrombus formation
WO2011050393A1 (en) 2009-10-26 2011-05-05 Impedimed Limited Fluid level indicator determination
US9770204B2 (en) 2009-11-11 2017-09-26 Medtronic, Inc. Deep brain stimulation for sleep and movement disorders
EP2501283B1 (en) 2009-11-18 2016-09-21 Impedimed Limited Signal distribution for patient-electrode measurements
US8784323B2 (en) * 2009-11-20 2014-07-22 Pacesetter, Inc. Methods and systems that use implanted posture sensor to monitor pulmonary edema
WO2011121089A1 (en) 2010-04-01 2011-10-06 Ecole Polytechnique Federale De Lausanne (Epfl) Device for interacting with neurological tissue and methods of making and using the same
CN103068330B (en) 2010-04-09 2016-06-29 Vessix血管股份有限公司 Power for treating tissue occurs and controls device
IT1402105B1 (en) 2010-10-11 2013-08-28 W I N Wireless Integrated Networks R L WEARABLE DEVICE FOR DIAGNOSIS OF CARDIAC AND / OR PATHOLOGIES FOR THE DETECTION OF HEMODYNAMIC VARIABLES.
US20120191153A1 (en) * 2011-01-21 2012-07-26 Medtronic, Inc. Diagnosis of lead fracture and connection problems
US10016607B2 (en) * 2011-02-08 2018-07-10 Pacesetter, Inc. Systems and methods for tracking stroke volume using hybrid impedance configurations employing a multi-pole implantable cardiac lead
ES2401286B1 (en) * 2011-08-30 2014-04-03 Universidad De Extremadura UNIT, MODULAR SYSTEM AND PROCEDURE FOR REMOTE MEASUREMENT, PROCESSING AND MONITORING OF ELECTRICAL BIOIMPEDANCE
US9149225B2 (en) 2011-12-14 2015-10-06 Intesection Medical, Inc. Methods for determining the relative spatial change in subsurface resistivities across frequencies in tissue
US9113805B2 (en) 2013-03-04 2015-08-25 Mortara Instrument, Inc. Impedance measurement system
CN103230272B (en) * 2013-04-23 2015-03-25 中国科学院电工研究所 Method and device for hepatopathy nutrition state detection
WO2014189770A2 (en) * 2013-05-15 2014-11-27 Zephyr Technology Corporation Two-electrode, impedance-based respiration determination
US20150038872A1 (en) * 2013-08-02 2015-02-05 The Trustees Of Dartmouth College Multiple-electrode electrical impedance sensing biopsy sampling device and method
WO2015047608A1 (en) * 2013-09-26 2015-04-02 Cardiac Pacemakers, Inc. Heart failure event detection using thoracic impedance
KR101502765B1 (en) 2013-12-23 2015-03-18 정대영 Method and system for exercise guide and moviguide using measuring of biometrics
EP3476430B1 (en) 2014-05-16 2020-07-01 Aleva Neurotherapeutics SA Device for interacting with neurological tissue
US11311718B2 (en) 2014-05-16 2022-04-26 Aleva Neurotherapeutics Sa Device for interacting with neurological tissue and methods of making and using the same
CN103976737B (en) * 2014-05-28 2015-11-18 中山大学 A kind of pulmo respiratory impedance correlation analysis and system
TWI563972B (en) * 2014-06-11 2017-01-01 國立成功大學 Signal process system and method for the same and bioimpedance detection device and element
US9474894B2 (en) 2014-08-27 2016-10-25 Aleva Neurotherapeutics Deep brain stimulation lead
US9924904B2 (en) 2014-09-02 2018-03-27 Medtronic, Inc. Power-efficient chopper amplifier
CN106156698A (en) * 2015-03-30 2016-11-23 联想(北京)有限公司 A kind of information processing method and electronic equipment
JP6857612B2 (en) * 2015-04-08 2021-04-14 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Cardiovascular deterioration warning score
CN105769192B (en) * 2016-02-24 2019-05-14 苏州润心医疗器械有限公司 A kind of multifrequency 3 D detection method of coronary plaque
US20190110710A1 (en) * 2016-03-30 2019-04-18 Universitat Politécnica de Catalunya Systems and methods to assess infarcted myocardial tissue by measuring electrical impedance during the cardiac cycle
US10702692B2 (en) 2018-03-02 2020-07-07 Aleva Neurotherapeutics Neurostimulation device
EP3542716A1 (en) * 2018-03-23 2019-09-25 BIOTRONIK SE & Co. KG Medical device and method for the evaluation of data regarding faults in an electrode lead
CN116669623A (en) * 2020-12-11 2023-08-29 美国亚德诺半导体公司 Model-based lung fluid state detection technique
CN114492536A (en) * 2022-02-15 2022-05-13 福州大学 Muscle impedance signal separation method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020072686A1 (en) * 2000-05-18 2002-06-13 Nuvasive, Inc. Tissue discrimination and applications in medical procedures
US20020123674A1 (en) * 2001-03-01 2002-09-05 Gianni Plicchi Process and implantable device for the intrapulmonary assessing of density dependant physical properties of the lung tissue

Family Cites Families (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3340867A (en) 1964-08-19 1967-09-12 Univ Minnesota Impedance plethysmograph
IL65581A (en) * 1982-04-22 1985-12-31 Dan Atlas Electrical measuring system particularly useful for the non-invasive examination of biological tissue
DE3689347D1 (en) 1985-09-17 1994-01-13 Biotronik Mess & Therapieg Pacemaker.
US5365426A (en) 1987-03-13 1994-11-15 The University Of Maryland Advanced signal processing methodology for the detection, localization and quantification of acute myocardial ischemia
US4905705A (en) 1989-03-03 1990-03-06 Research Triangle Institute Impedance cardiometer
US5358519A (en) 1989-12-06 1994-10-25 Medtronic, Inc. Muscle control and monitoring system
US5154170A (en) 1990-08-14 1992-10-13 Medtronic, Inc. Optimization for rate responsive cardiac pacemaker
DE4100568A1 (en) 1991-01-11 1992-07-16 Fehling Guido DEVICE FOR MONITORING A PATIENT FOR REPELLATION REACTIONS OF AN IMPLANTED ORGAN
US5199428A (en) 1991-03-22 1993-04-06 Medtronic, Inc. Implantable electrical nerve stimulator/pacemaker with ischemia for decreasing cardiac workload
US5267564A (en) 1991-06-14 1993-12-07 Siemens Pacesetter, Inc. Pacemaker lead for sensing a physiologic parameter of the body
US5282840A (en) 1992-03-26 1994-02-01 Medtronic, Inc. Multiple frequency impedance measurement system
US5454377A (en) 1993-10-08 1995-10-03 The Ohio State University Method for measuring the myocardial electrical impedance spectrum
US5824029A (en) 1994-04-28 1998-10-20 Medtronic, Inc. Implantable medical system for performing transthoracic impedance measurements associated with cardiac function
IT1272265B (en) 1994-06-06 1997-06-16 Medtronic Inc Societa Del Minn IMPROVEMENT IN CARDIAC STIMULATOR SYSTEMS
US6038469A (en) 1994-10-07 2000-03-14 Ortivus Ab Myocardial ischemia and infarction analysis and monitoring method and apparatus
US6424860B1 (en) 1994-10-07 2002-07-23 Ortivus Ab Myocardial ischemia and infarction analysis and monitoring method and apparatus
US5556421A (en) 1995-02-22 1996-09-17 Intermedics, Inc. Implantable medical device with enclosed physiological parameter sensors or telemetry link
US5807272A (en) 1995-10-31 1998-09-15 Worcester Polytechnic Institute Impedance spectroscopy system for ischemia monitoring and detection
US5814076A (en) 1996-02-09 1998-09-29 Cardiac Control Systems, Inc. Apparatus for improved cardiac pacing and sensing using extracardiac indifferent electrode configurations
US6269264B1 (en) 1996-12-13 2001-07-31 Pacesetter, Inc. Method for measuring impedance in the body
SE9700182D0 (en) 1997-01-22 1997-01-22 Pacesetter Ab Implantable heart stimulator
SE9700181D0 (en) 1997-01-22 1997-01-22 Pacesetter Ab Ischemia detector and heart stimulator provided with such an ischemia detector
US5876353A (en) 1997-01-31 1999-03-02 Medtronic, Inc. Impedance monitor for discerning edema through evaluation of respiratory rate
US5957861A (en) 1997-01-31 1999-09-28 Medtronic, Inc. Impedance monitor for discerning edema through evaluation of respiratory rate
SE9700427D0 (en) 1997-02-07 1997-02-07 Pacesetter Ab Ischemia detector
SE9701121D0 (en) 1997-03-26 1997-03-26 Pacesetter Ab Implantable heart stimulator
US5974340A (en) 1997-04-29 1999-10-26 Cardiac Pacemakers, Inc. Apparatus and method for monitoring respiratory function in heart failure patients to determine efficacy of therapy
US6070100A (en) 1997-12-15 2000-05-30 Medtronic Inc. Pacing system for optimizing cardiac output and determining heart condition
US5931858A (en) 1998-01-12 1999-08-03 Cardiac Pacemakers, Inc. Implantable device for monitoring aerobic capacity of patients
US6076015A (en) 1998-02-27 2000-06-13 Cardiac Pacemakers, Inc. Rate adaptive cardiac rhythm management device using transthoracic impedance
US6141585A (en) 1998-05-08 2000-10-31 Intermedics Inc. Implantable cardiac stimulator with electrode-tissue interface characterization
US6473640B1 (en) 1999-01-25 2002-10-29 Jay Erlebacher Implantable device and method for long-term detection and monitoring of congestive heart failure
US6128526A (en) 1999-03-29 2000-10-03 Medtronic, Inc. Method for ischemia detection and apparatus for using same
US6115628A (en) 1999-03-29 2000-09-05 Medtronic, Inc. Method and apparatus for filtering electrocardiogram (ECG) signals to remove bad cycle information and for use of physiologic signals determined from said filtered ECG signals
US6278894B1 (en) 1999-06-21 2001-08-21 Cardiac Pacemakers, Inc. Multi-site impedance sensor using coronary sinus/vein electrodes
US6512949B1 (en) 1999-07-12 2003-01-28 Medtronic, Inc. Implantable medical device for measuring time varying physiologic conditions especially edema and for responding thereto
US6360123B1 (en) 1999-08-24 2002-03-19 Impulse Dynamics N.V. Apparatus and method for determining a mechanical property of an organ or body cavity by impedance determination
US6277078B1 (en) 1999-11-19 2001-08-21 Remon Medical Technologies, Ltd. System and method for monitoring a parameter associated with the performance of a heart
JP2001198098A (en) 2000-01-21 2001-07-24 Tanita Corp Dropsy measurement method and dropsy measurement device
FR2805998B1 (en) 2000-03-07 2002-10-18 Ela Medical Sa ACTIVE IMPLANTABLE MEDICAL DEVICE, IN PARTICULAR A CARDIAC STIMULATOR, A DEFIBRILLATOR AND / OR A MULTI-SITE CARDIOVERVER PROVIDED WITH MEANS OF MEASUREMENT OF INTRACARDIAC IMPEDANCE
WO2001087410A2 (en) 2000-05-15 2001-11-22 Pacesetter, Inc. Cardiac stimulation devices and methods for measuring impedances associated with the left side of the heart
US6454719B1 (en) 2000-08-01 2002-09-24 Pacesetter, Inc. Apparatus and method for diagnosis of cardiac disease using a respiration monitor
US6434408B1 (en) 2000-09-29 2002-08-13 Datex-Ohmeda, Inc. Pulse oximetry method and system with improved motion correction
US20030149368A1 (en) 2000-10-24 2003-08-07 Hennemann Willard W. Method and apparatus for locating and detecting vascular plaque via impedence and conductivity measurements, and for cryogenically passivating vascular plaque and inhibiting vascular plaque progression and rupture
US6604000B2 (en) 2000-12-08 2003-08-05 Pacesetter, Inc. Method and device for responding to the detection of ischemia in cardiac tissue
US6438408B1 (en) 2000-12-28 2002-08-20 Medtronic, Inc. Implantable medical device for monitoring congestive heart failure
US6684101B2 (en) 2001-04-25 2004-01-27 Cardiac Pacemakers, Inc. Implantable medical device employing single drive, dual sense impedance measuring
US6595927B2 (en) 2001-07-23 2003-07-22 Medtronic, Inc. Method and system for diagnosing and administering therapy of pulmonary congestion
US7191000B2 (en) 2001-07-31 2007-03-13 Cardiac Pacemakers, Inc. Cardiac rhythm management system for edema
US6937899B2 (en) 2001-08-30 2005-08-30 Medtronic, Inc. Ischemia detection
FR2829917B1 (en) 2001-09-24 2004-06-11 Ela Medical Sa ACTIVE MEDICAL DEVICE INCLUDING MEANS FOR DIAGNOSING THE RESPIRATORY PROFILE
US6980851B2 (en) 2001-11-15 2005-12-27 Cardiac Pacemakers, Inc. Method and apparatus for determining changes in heart failure status
US7010344B2 (en) 2002-04-26 2006-03-07 Medtronic, Inc. Method and apparatus for delaying a ventricular tachycardia therapy
SE0202290D0 (en) 2002-07-22 2002-07-22 St Jude Medical Monitor
US7130679B2 (en) * 2002-11-20 2006-10-31 Medtronic, Inc. Organ rejection monitoring
US7149573B2 (en) 2003-04-25 2006-12-12 Medtronic, Inc. Method and apparatus for impedance signal localizations from implanted devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020072686A1 (en) * 2000-05-18 2002-06-13 Nuvasive, Inc. Tissue discrimination and applications in medical procedures
US20020123674A1 (en) * 2001-03-01 2002-09-05 Gianni Plicchi Process and implantable device for the intrapulmonary assessing of density dependant physical properties of the lung tissue

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MALMIVUO ET AL.: "Bioelectromagnetism: Principles and Applications of Bioelectric and Biomagnetic Fields", November 1995, OXFORD UNIVERSITY PRESS, pages: 202 - 206, XP008097127 *

Also Published As

Publication number Publication date
HK1119550A1 (en) 2009-03-13
US7447543B2 (en) 2008-11-04
EP1848334A2 (en) 2007-10-31
CN100584270C (en) 2010-01-27
CN101163443A (en) 2008-04-16
EP1848334A4 (en) 2009-11-11
JP2008529678A (en) 2008-08-07
WO2006088805A2 (en) 2006-08-24
US20060184060A1 (en) 2006-08-17

Similar Documents

Publication Publication Date Title
WO2006088805A3 (en) Pathology assessment with impedance measurements using convergent bioelectric lead fields
WO2007075091A3 (en) Method and apparatus for determining local tissue impedance for positioning of a needle
ITPI20040060A1 (en) METHOD AND APPARATUS FOR MONITORING OF PHYSIOLOGICAL VARIABLES THROUGH BODY ELECTRIC MEASUREMENT MEASUREMENTS
WO2007127443A3 (en) Apparatus to provide impedance safety checks for neural stimulation
ATE419896T1 (en) ELECTRODE FOR USE IN AN MRI SAFE IMPLANTABLE MEDICAL DEVICE
WO2009009666A3 (en) Method to enhance osteoblast functionality and measure electrochemical properties for a medical implant
ATA15172002A (en) MEDICAL ELECTRODE ELEMENT
EP1712179A3 (en) Trunk visceral fat measuring method and apparatus
ATE454087T1 (en) IMPEDANCE MONITORING FOR DETECTING PULMONARY EDEMA AND CHEST COLLECTION
WO2012074794A3 (en) Apparatus and method for treatment of pain with body impedance analyzer
IL183823A0 (en) Reference catheter for impedance calibration
JP2008534168A5 (en)
WO2004078252A3 (en) Multi-channel and multi-dimensional system and method
WO2008086018A3 (en) Two-probe bark control device and method for making such
WO2012085907A3 (en) Pacemaker with no production
ATE415862T1 (en) MEDICAL DEVICE FOR DETERMINING THE POSTURE OF A PATIENT
IL179295A (en) Method and device for determining a parameter of living tissue
DE602006010995D1 (en) FUNCTION TEST FOR DISTRIBUTED LINE CABLES
HK1087317A1 (en)
WO2008024137A3 (en) Novel method and apparatus for determining optimal neuromuscular detection sites, novel diagnostic biosensor array formed in accordance with the same, and novel method for testing a patient using the novel diagnostic biosensor array
ATE512693T1 (en) HEART STIMULATOR WITH AN IMPEDANCE MEASUREMENT CIRCUIT FOR DETECTING ISCHEMIA
WO2010001089A8 (en) Structural determination apparatus and method
ATE304883T1 (en) ACTIVE IMPLANTABLE MEDICAL DEVICE, IN PARTICULAR CARDIAC STIMULATOR, DEFIBRILLATOR AND/OR MULTISITE DEVICE HAVING MEANS FOR MEASURING TRANSVALCULAR IMPEDANCE
ATE471694T1 (en) IMPLANTABLE MEDICAL DEVICE FOR ASSESSING A PATIENT'S DEGREE OF PULMONARY EDEMA
WO2008021546A3 (en) Impedance measurement of a ph electrode

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200680008535.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2007555322

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 3010/KOLNP/2007

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2006734952

Country of ref document: EP