[go: up one dir, main page]

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

Info

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
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.)
Ceased
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
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Medtronic Inc
Original Assignee
Medtronic Inc
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 US11/742,625 external-priority patent/US8068901B2/en
Priority claimed from US11/742,618 external-priority patent/US8095206B2/en
Application filed by Medtronic Inc filed Critical Medtronic Inc
Publication of WO2008137529A2 publication Critical patent/WO2008137529A2/en
Publication of WO2008137529A3 publication Critical patent/WO2008137529A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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 Ceased WO2008137529A2 (en)

Applications Claiming Priority (6)

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

Similar Documents

Publication Publication Date Title
WO2006023786A3 (en) Blood pressure measurement by implantable device
WO2009121040A3 (en) Analyte sensor calibration management
WO2004062484A3 (en) Method and device for detecting respiratory disturbances
WO2010099190A3 (en) Methods and apparatus for measuring physiological conditions
ATE514440T1 (en) FLUID DISPENSING DEVICE WITH INTEGRATED MONITORING OF PHYSIOLOGICAL PROPERTIES
WO2009037654A3 (en) Feedback apparatus for a game
ATE484314T1 (en) DEVICE FOR DETERMINING OVERSENSING IN A MEDICAL DEVICE
EP1860776A3 (en) Proximity sensor and proximity sensing method
WO2010111531A3 (en) Device for detecting an analyte
WO2007002189A3 (en) Analyte sensor
WO2009013670A3 (en) Monitoring of use status and automatic power management in medical devices
WO2009020114A1 (en) Blood pressure measuring device
WO2006056907A3 (en) Depression detection system
WO2006121661A3 (en) Cellulosic-based resistance domain for an analyte sensor
WO2008082802A3 (en) Contact sensor and sheath exit sensor
WO2004049930A3 (en) Detection of disordered breathing
WO2007106628A3 (en) Electrical field sensors
WO2015157445A3 (en) Method, devices and systems for detecting an attachment of an electronic patch
EP2382556A4 (en) Method and device for early signal attenuation detection using blood glucose measurements
WO2009102613A3 (en) Methods of monitoring hemodynamic status for ryhthm discrimination within the heart
JP2008526453A5 (en)
WO2005057168A3 (en) Calibration techniques for a continuous analyte sensor
EP2624106A3 (en) System and method for calibrating an input device
HK1231347A1 (en) Methods, systems, and devices for optimal positioning of sensors
WO2010058301A3 (en) Piezoresistive force sensor integrated in a display

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08769259

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08769259

Country of ref document: EP

Kind code of ref document: A2