WO2008137529A3 - Method and apparatus for detecting arrhythmias in a medical device - Google Patents

Method and apparatus for detecting arrhythmias in a medical device Download PDF

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Publication number
WO2008137529A3
WO2008137529A3 PCT/US2008/062193 US2008062193W WO2008137529A3 WO 2008137529 A3 WO2008137529 A3 WO 2008137529A3 US 2008062193 W US2008062193 W US 2008062193W WO 2008137529 A3 WO2008137529 A3 WO 2008137529A3
Authority
WO
WIPO (PCT)
Prior art keywords
oversensing
cardiac signals
medical device
detecting arrhythmias
electronic circuitry
Prior art date
Application number
PCT/US2008/062193
Other languages
French (fr)
Other versions
WO2008137529A2 (en
Inventor
Raja N Ghanem
Robert W Stadler
Xusheng Zhang
Karin J Kleckner
Paul G Krause
Original Assignee
Medtronic Inc
Raja N Ghanem
Robert W Stadler
Xusheng Zhang
Karin J Kleckner
Paul G Krause
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
Priority claimed from US11/742,628 external-priority patent/US7937135B2/en
Priority claimed from US11/742,618 external-priority patent/US8095206B2/en
Priority claimed from US11/742,625 external-priority patent/US8068901B2/en
Application filed by Medtronic Inc, Raja N Ghanem, Robert W Stadler, Xusheng Zhang, Karin J Kleckner, Paul G Krause filed Critical Medtronic Inc
Publication of WO2008137529A2 publication Critical patent/WO2008137529A2/en
Publication of WO2008137529A3 publication Critical patent/WO2008137529A3/en

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
    • A61N1/37—Monitoring; Protecting
    • A61N1/3702—Physiological parameters
    • A61N1/3704—Circuits specially adapted therefor, e.g. for sensitivity control
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/346—Analysis of electrocardiograms
    • A61B5/349—Detecting specific parameters of the electrocardiograph cycle
    • A61B5/361—Detecting fibrillation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/346—Analysis of electrocardiograms
    • A61B5/349—Detecting specific parameters of the electrocardiograph cycle
    • A61B5/363—Detecting tachycardia or bradycardia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • 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
    • 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
    • A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/056—Transvascular endocardial electrode systems
    • A61N1/0563—Transvascular endocardial electrode systems specially adapted for defibrillation or cardioversion

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Cardiology (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Physiology (AREA)
  • Electrotherapy Devices (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

A method and apparatus for determining oversensing of cardiac signals that includes a housing containing electronic circuitry, an electrode coupled to the electronic circuitry to sense cardiac signals, and a processor, positioned within the housing, to determine an oversensing characteristic associated with the cardiac signals sensed over a predetermined sensing window, and to identify oversensing in response to the determined oversensing characteristic.
PCT/US2008/062193 2007-05-01 2008-05-01 Method and apparatus for detecting arrhythmias in a medical device WO2008137529A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US11/742,628 US7937135B2 (en) 2007-05-01 2007-05-01 Method and apparatus for adjusting a sensing parameter
US11/742,625 2007-05-01
US11/742,618 US8095206B2 (en) 2007-05-01 2007-05-01 Method and apparatus for detecting arrhythmias in a medical device
US11/742,625 US8068901B2 (en) 2007-05-01 2007-05-01 Method and apparatus for adjusting a sensing parameter
US11/742,618 2007-05-01
US11/742,628 2007-05-01

Publications (2)

Publication Number Publication Date
WO2008137529A2 WO2008137529A2 (en) 2008-11-13
WO2008137529A3 true WO2008137529A3 (en) 2008-12-31

Family

ID=39816727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/062193 WO2008137529A2 (en) 2007-05-01 2008-05-01 Method and apparatus for detecting arrhythmias in a medical device

Country Status (1)

Country Link
WO (1) WO2008137529A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8301233B2 (en) 2009-03-31 2012-10-30 Medtronic, Inc. Detecting a condition of a patient using a probability-correlation based model
US8855755B2 (en) 2009-04-27 2014-10-07 Medtronic, Inc. Distinguishing between treatable and non-treatable heart rhythms

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004023995A1 (en) * 2002-09-11 2004-03-25 Medtronic, Inc. Methods and apparatus for cardiac r-wave sensing in a subcutaneous ecg waveform
US20040106957A1 (en) * 2001-10-29 2004-06-03 Surekha Palreddy Method and system for noise measurement in an implantable cardiac device
WO2004093974A2 (en) * 2003-04-18 2004-11-04 Medtronic, Inc. Method and apparatus for identifying cardiac and non-cardiac oversensing using intracardiac electrograms
WO2007117822A1 (en) * 2006-03-29 2007-10-18 Medtronic, Inc. Method and apparatus for detecting arrhythmias in a subcutaneous medical device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040106957A1 (en) * 2001-10-29 2004-06-03 Surekha Palreddy Method and system for noise measurement in an implantable cardiac device
WO2004023995A1 (en) * 2002-09-11 2004-03-25 Medtronic, Inc. Methods and apparatus for cardiac r-wave sensing in a subcutaneous ecg waveform
WO2004093974A2 (en) * 2003-04-18 2004-11-04 Medtronic, Inc. Method and apparatus for identifying cardiac and non-cardiac oversensing using intracardiac electrograms
WO2007117822A1 (en) * 2006-03-29 2007-10-18 Medtronic, Inc. Method and apparatus for detecting arrhythmias in a subcutaneous medical device

Also Published As

Publication number Publication date
WO2008137529A2 (en) 2008-11-13

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