ATE512693T1 - Herzstimulator mit einem impedanzmesskreis zum nachweis einer ischämie - Google Patents

Herzstimulator mit einem impedanzmesskreis zum nachweis einer ischämie

Info

Publication number
ATE512693T1
ATE512693T1 AT07835033T AT07835033T ATE512693T1 AT E512693 T1 ATE512693 T1 AT E512693T1 AT 07835033 T AT07835033 T AT 07835033T AT 07835033 T AT07835033 T AT 07835033T AT E512693 T1 ATE512693 T1 AT E512693T1
Authority
AT
Austria
Prior art keywords
ischemia
measurement circuit
impedance measurement
heart
heart stimulator
Prior art date
Application number
AT07835033T
Other languages
English (en)
Inventor
Nils Holmstrom
Original Assignee
St Jude Medical
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 St Jude Medical filed Critical St Jude Medical
Application granted granted Critical
Publication of ATE512693T1 publication Critical patent/ATE512693T1/de

Links

Classifications

    • 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
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
    • A61N1/368—Heart stimulators controlled by a physiological parameter, e.g. heart potential comprising more than one electrode co-operating with different heart regions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0033—Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room
    • A61B5/004—Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
    • A61B5/0044—Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part for the heart
    • 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
    • A61B5/0536—Impedance imaging, e.g. by tomography
    • 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
    • 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
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/362—Heart stimulators
    • A61N1/365—Heart stimulators controlled by a physiological parameter, e.g. heart potential
    • A61N1/36514—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure
    • A61N1/36521—Heart stimulators controlled by a physiological parameter, e.g. heart potential controlled by a physiological quantity other than heart potential, e.g. blood pressure the parameter being derived from measurement of an electrical impedance

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Physiology (AREA)
  • Electrotherapy Devices (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
AT07835033T 2007-02-28 2007-02-28 Herzstimulator mit einem impedanzmesskreis zum nachweis einer ischämie ATE512693T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2007/000195 WO2008105692A1 (en) 2007-02-28 2007-02-28 Medical device for detecting ischemia and a method for such a device

Publications (1)

Publication Number Publication Date
ATE512693T1 true ATE512693T1 (de) 2011-07-15

Family

ID=39721471

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07835033T ATE512693T1 (de) 2007-02-28 2007-02-28 Herzstimulator mit einem impedanzmesskreis zum nachweis einer ischämie

Country Status (4)

Country Link
US (1) US8140157B2 (de)
EP (1) EP2114525B1 (de)
AT (1) ATE512693T1 (de)
WO (1) WO2008105692A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8265769B2 (en) 2007-01-31 2012-09-11 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for wireless telemetry
US7385443B1 (en) 2007-01-31 2008-06-10 Medtronic, Inc. Chopper-stabilized instrumentation amplifier
US9615744B2 (en) 2007-01-31 2017-04-11 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US7391257B1 (en) 2007-01-31 2008-06-24 Medtronic, Inc. Chopper-stabilized instrumentation amplifier for impedance measurement
US8781595B2 (en) 2007-04-30 2014-07-15 Medtronic, Inc. Chopper mixer telemetry circuit
US8380314B2 (en) 2007-09-26 2013-02-19 Medtronic, Inc. Patient directed therapy control
EP2211986B1 (de) 2007-10-16 2013-11-20 Medtronic, Inc. Therapiesteuerung basierend auf patientenbewegungszustand
WO2009094050A1 (en) 2008-01-25 2009-07-30 Medtronic, Inc. Sleep stage detection
US8180129B2 (en) 2008-01-31 2012-05-15 Medtronic, Inc. Electrode-to-lead association using post-implant imaging
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
US8478402B2 (en) * 2008-10-31 2013-07-02 Medtronic, Inc. Determining intercardiac impedance
US20100113964A1 (en) * 2008-10-31 2010-05-06 Wahlstrand John D Determining intercardiac impedance
WO2010104425A1 (en) * 2009-03-13 2010-09-16 St. Jude Medical Ab Ischemic status monitoring
US20120184866A1 (en) * 2009-09-29 2012-07-19 St. Jude Medical Ab Implantable medical device and method for multisite measurement of intracardiac impedance
US9770204B2 (en) 2009-11-11 2017-09-26 Medtronic, Inc. Deep brain stimulation for sleep and movement disorders
US8718767B2 (en) 2009-12-18 2014-05-06 St. Jude Medical Ab Cardiac stimulating device
US20120150169A1 (en) * 2010-12-09 2012-06-14 Medtronic, Inc. Impedance measurement to monitor organ perfusion or hemodynamic status
US9123107B2 (en) * 2011-04-28 2015-09-01 Medtronic, Inc. Image-based analysis of implantable medical device positioning
US9924904B2 (en) 2014-09-02 2018-03-27 Medtronic, Inc. Power-efficient chopper amplifier
US20210259572A1 (en) * 2018-07-04 2021-08-26 Navix International Limited Imaging method

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458694A (en) * 1977-11-02 1984-07-10 Yeda Research & Development Co., Ltd. Apparatus and method for detection of tumors in tissue
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
US5807272A (en) * 1995-10-31 1998-09-15 Worcester Polytechnic Institute Impedance spectroscopy system for ischemia monitoring and detection
CA2191285A1 (en) 1996-11-26 1998-05-26 Philip Maurice Church Electrode arrangement for electrical impedance tomography system
SE9700182D0 (sv) 1997-01-22 1997-01-22 Pacesetter Ab Implantable heart stimulator
US6473640B1 (en) 1999-01-25 2002-10-29 Jay Erlebacher Implantable device and method for long-term detection and monitoring of congestive heart failure
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
US6752765B1 (en) * 1999-12-01 2004-06-22 Medtronic, Inc. Method and apparatus for monitoring heart rate and abnormal respiration
US6604000B2 (en) 2000-12-08 2003-08-05 Pacesetter, Inc. Method and device for responding to the detection of ischemia in cardiac tissue
US7169107B2 (en) * 2002-01-25 2007-01-30 Karen Jersey-Willuhn Conductivity reconstruction based on inverse finite element measurements in a tissue monitoring system
SE0202290D0 (sv) * 2002-07-22 2002-07-22 St Jude Medical Monitor
US8383158B2 (en) * 2003-04-15 2013-02-26 Abbott Cardiovascular Systems Inc. Methods and compositions to treat myocardial conditions
WO2004105862A2 (en) * 2003-05-28 2004-12-09 The Ohio State University Measuring human heart muscle viability using myocardial electrical impedance
US8428717B2 (en) * 2003-10-14 2013-04-23 Medtronic, Inc. Method and apparatus for monitoring tissue fluid content for use in an implantable cardiac device
US7668594B2 (en) 2005-08-19 2010-02-23 Cardiac Pacemakers, Inc. Method and apparatus for delivering chronic and post-ischemia cardiac therapies
US7430309B2 (en) * 2004-02-09 2008-09-30 Institut De Cardiologie De Montreal Computation of a geometric parameter of a cardiac chamber from a cardiac tomography data set
DE602004027848D1 (de) * 2004-10-11 2010-08-05 St Jude Medical Nachweis von ischämie
DE602005005940T2 (de) 2005-02-09 2009-04-02 Raul Chirife Ischämiedetektor
US7447543B2 (en) 2005-02-15 2008-11-04 Regents Of The University Of Minnesota Pathology assessment with impedance measurements using convergent bioelectric lead fields
WO2006119015A1 (en) 2005-04-30 2006-11-09 Medtronic, Inc. Impedance-based stimulation adjustment

Also Published As

Publication number Publication date
EP2114525B1 (de) 2011-06-15
EP2114525A1 (de) 2009-11-11
WO2008105692A1 (en) 2008-09-04
US8140157B2 (en) 2012-03-20
US20100100147A1 (en) 2010-04-22
EP2114525A4 (de) 2010-03-17

Similar Documents

Publication Publication Date Title
ATE512693T1 (de) Herzstimulator mit einem impedanzmesskreis zum nachweis einer ischämie
US11850032B2 (en) Method and system for monitoring internal electrical impedance of a biological object
EA200970245A1 (ru) Способ и система для неинвазивных измерений параметров работы сердца
SA517390218B1 (ar) جهاز وطرق لتحديد النسيج التالف باستخدام قياسات الرطوبة تحت الجلد
EP4306053A3 (de) System und verfahren zum erhalt von körperfunktionsmessungen unter verwendung einer mobilen vorrichtung
EP4176799A3 (de) System und verfahren zum erhalt von körperfunktionsmessungen unter verwendung einer mobilen vorrichtung
GB201207734D0 (en) Electrical impedance tomography apparatus and method
ATE391529T1 (de) Ischämiedetektor
JP2008043735A5 (de)
EP4241668A3 (de) Vorrichtung und verfahren zur messung einer elektrodermalen aktivität mit stromkompensation
MY174598A (en) Apparatus for use for providing information on at least one muscle in a patient
WO2013137999A3 (en) Method and system for determining body impedance
WO2015003015A3 (en) Apparatuses for home use in determining tissue wetness
IN2014MN01741A (de)
ATE472293T1 (de) Relative impedanzmessung
WO2014149690A3 (en) Control unit for use with electrode pads and a method for estimating an electrical leakage
DE602006015442D1 (de) Gerät zum nachweis von arrhythmie in einem medizinprodukt
MY168831A (en) Detection apparatus and method
ATE399508T1 (de) Ablationsvorrichtung
WO2014189770A3 (en) Two-electrode, impedance-based respiration determination
ITPI20040060A1 (it) Metodo e apparato per il monitoraggio di variabili fisiologiche attraverso misure di mpedenza elettrica corporea
WO2012034014A3 (en) Electrode system with in-band impedance detection
WO2010001089A8 (en) Structural determination apparatus and method
RU2019125157A (ru) Плоская гибкая накладка
EP4470467A3 (de) Multisensorvorrichtung zur überwachung des gesundheitszustandes

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties