US Patent No: 6,424,865

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Ventricular conduction delay trending system and method

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and system for ascertaining the condition of the heart's conduction system in a patient treated for congestive heart failure with pacing therapy. In accordance with the invention, changes in ventricular activation patterns are monitored over time in order to detect changes in the heart's conduction system that may occur due to physiological regeneration of conduction pathways. The activation patterns are reflected by electrogram signals detected from different ventricular locations. By measuring the difference in conduction times of an excitation impulse traveling from the AV node to the different ventricular locations, a parameter representative of the heart's conduction system is obtained that may be used to adjust the pacing therapy in accordance therewith.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CARDIAC PACEMAKERS, INC.ST PAUL, MN2743

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ding, Jiang Maplewood, MN 254 2701

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MEDTRONIC, INC. (5)
4,890,617 Dual chamber activity responsive pacer 88 1987
4,920,965 Dual chamber pacemaker with adaptive atrial escape interval 72 1987
5,902,324 Bi-atrial and/or bi-ventricular sequential cardiac pacing systems 186 1998
6,122,545 Multiple channel sequential cardiac pacing method 89 1998
6,081,748 Multiple channel, sequential, cardiac pacing systems 86 1999
 
MEDICAL ENGINEERING AND DEVELOPMENT INSTITUTE, INC. (1)
4,945,909 Pacemaker with activity-dependent rate limiting 133 1989
 
Other [Check patent profile for assignment information] (1)
5,179,949 Cardiac pacemaker with automatic A-V programming for optimization of left heart A-V interval 91 1990

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
CARDIAC PACEMAKERS, INC. (108)
7,062,325 Method and apparatus for treating irregular ventricular contractions such as during atrial arrhythmia 30 1999
7,039,461 Cardiac pacing system for prevention of ventricular fibrillation and ventricular tachycardia episode 22 2000
7,142,918 Apparatus and method for pacing mode switching during atrial tachyarrhythmias 20 2000
6,957,100 Method and system for display of cardiac event intervals in a resynchronization pacemaker 16 2000
7,239,914 Rate smoothing control 9 2001
6,763,267 Ventricular conduction delay trending system and method 41 2002
6,988,002 Apparatus and method for ventricular rate regularization with biventricular sensing 14 2002
7,069,077 Rate smoothing control 10 2002
7,181,278 Apparatus and method for ventricular rate regularization 8 2003
7,142,915 Apparatus and method for ventricular rate regularization 12 2003
7,392,084 Demand-based cardiac function therapy 18 2003
7,572,226 System and method for monitoring autonomic balance and physical activity 7 2003
7,212,860 Apparatus and method for pacing mode switching during atrial tachyarrhythmias 13 2003
8,521,284 Cardiac response classification using multisite sensing and pacing 0 2003
7,774,064 Cardiac response classification using retriggerable classification windows 2 2003
7,499,750 Noise canceling cardiac electrodes 15 2003
7,236,819 Separation of a subcutaneous cardiac signal from a plurality of composite signals 44 2003
7,349,734 Method and apparatus for delivering defibrillation shock therapy while reducing electrical dispersion due to ventricular conduction disorder 4 2003
7,865,233 Subcutaneous cardiac signal discrimination employing non-electrophysiologic signal 12 2004
7,047,066 Method and system for display of cardiac event intervals in a resynchronization pacemaker 14 2004
7,555,335 Biopotential signal source separation using source impedances 14 2004
7,678,061 System and method for characterizing patient respiration 21 2004
7,510,531 System and method for discrimination of central and obstructive disordered breathing events 9 2004
7,460,908 System providing ventricular pacing and biventricular coordination 9 2004
7,747,323 Adaptive baroreflex stimulation therapy for disordered breathing 12 2004
7,469,697 Feedback system and method for sleep disordered breathing therapy 21 2004
7,706,866 Automatic orientation determination for ECG measurements using multiple electrodes 15 2004
7,383,086 Ventricular conduction delay trending system and method 12 2004
8,606,356 Autonomic arousal detection system and method 0 2004
7,572,225 Sleep logbook 49 2004
7,668,591 Automatic activation of medical processes 3 2004
8,251,061 Methods and systems for control of gas therapy 0 2004
7,468,040 Methods and systems for implantably monitoring external breathing therapy 27 2004
7,591,265 Coordinated use of respiratory and cardiac therapies for sleep disordered breathing 41 2004
7,575,553 Methods and systems for assessing pulmonary disease 4 2004
7,887,493 Implantable device employing movement sensing for detecting sleep-related disorders 4 2004
7,757,690 System and method for moderating a therapy delivered during sleep using physiologic data acquired during non-sleep 1 2004
7,610,094 Synergistic use of medical devices for detecting medical disorders 26 2004
7,967,756 Respiratory therapy control based on cardiac cycle 0 2004
7,787,946 Patient monitoring, diagnosis, and/or therapy systems and methods 28 2004
7,346,394 Cardiac stimulation at high ventricular wall stress areas 14 2004
7,890,159 Cardiac activation sequence monitoring and tracking 1 2004
7,418,293 Multiple pulse defibrillation for subcutaneous implantable cardiac devices 0 2004
7,996,072 Positionally adaptable implantable cardiac device 2 2004
7,680,534 Implantable cardiac device with dyspnea measurement 5 2005
7,797,036 Cardiac activation sequence monitoring for ischemia detection 14 2005
7,917,196 Arrhythmia discrimination using electrocardiograms sensed from multiple implanted electrodes 2 2005
7,805,185 Posture monitoring using cardiac activation sequences 0 2005
7,509,170 Automatic capture verification using electrocardiograms sensed from multiple implanted electrodes 33 2005
7,457,664 Closed loop cardiac resynchronization therapy using cardiac activation sequence information 28 2005
7,366,568 Controlled delivery of intermittent stress augmentation pacing for cardioprotective effect 16 2005
7,775,983 Rapid shallow breathing detection for use in congestive heart failure status determination 1 2005
7,766,840 Method and system for heart failure status evaluation based on a disordered breathing index 1 2005
7,662,105 Systems and methods for determining respiration metrics 13 2005
8,204,585 Bio-impedance sensor and sensing method 0 2005
7,742,814 Cardiac pacing system for prevention of ventricular fibrillation and ventricular tachycardia episode 6 2006
7,680,530 Method and system for display of cardiac event intervals in a resynchronization pacemaker 6 2006
7,927,284 Quantifying hemodynamic response to drug therapy using implantable sensor 0 2006
7,731,663 System and method for generating a trend parameter based on respiration rate distribution 10 2006
8,064,997 Method and apparatus for treating irregular ventricular contractions such as during atrial arrhythmia 0 2006
8,527,048 Local and non-local sensing for cardiac pacing 0 2006
7,599,741 Systems and methods for improving heart rate kinetics in heart failure patients 2 2006
8,209,013 Therapeutic electrical stimulation that avoids undesirable activation 1 2006
7,805,192 Apparatus and method for pacing mode switching during atrial tachyarrhythmias 8 2006
8,249,703 Apparatus and method for ventricular rate regularization 0 2007
7,856,267 Apparatus and method for pacing mode switching during atrial tachyarrhythmias 5 2007
7,715,916 Multi-parameter arrhythmia discrimination 3 2007
8,271,080 Decongestive therapy titration for heart failure patients using implantable sensor 0 2007
8,512,220 Rate smoothing control 0 2007
8,265,736 Method and apparatus to perform electrode combination selection 1 2007
8,024,039 Subcutaneous cardiac sensing and stimulation system employing blood sensor 0 2007
7,725,185 Cardiac stimulation at high ventricular wall stress areas 2 2008
8,027,719 Method and apparatus for delivering defibrillation shock therapy while reducing electrical dispersion due to ventricular conduction disorder 0 2008
8,027,723 Controlled delivery of intermittent stress augmentation pacing for cardioprotective effect 5 2008
7,938,782 Prediction of disordered breathing 10 2008
8,260,421 Method for reducing phrenic nerve stimulation 0 2008
8,185,202 Implantable cardiac device for reduced phrenic nerve stimulation 0 2008
8,065,003 Demand-based cardiac function therapy 1 2008
8,145,310 Non-captured intrinsic discrimination in cardiac pacing response classification 0 2008
7,993,279 Methods and systems for implantably monitoring external breathing therapy 0 2008
8,000,786 Multiple pulse defibrillation for subcutaneous implantable cardiac devices 0 2008
7,917,215 Closed loop cardiac resynchronization therapy using cardiac activation sequence information 0 2008
8,135,465 System providing ventricular pacing and biventricular coordination 0 2008
8,606,357 Cardiac waveform template creation, maintenance and use 0 2008
8,649,866 Method and apparatus for phrenic stimulation detection 0 2009
8,323,204 Medical event logbook system and method 0 2009
8,116,871 Automatic capture verification using electrocardiograms sensed from multiple implanted electrodes 0 2009
8,147,415 System and method for detection of pulmonary embolism 0 2009
7,996,071 Biopotential signal source separation using source impedances 0 2009
7,833,164 System and method for monitoring autonomic balance and physical activity 1 2009
8,311,631 Systems and methods for improving heart rate kinetics in heart failure patients 0 2009
8,104,470 Coordinated use of respiratory and cardiac therapies for sleep disordered breathing 0 2009
8,380,296 Automatic activation of medical processes 0 2009
8,221,327 Therapy control based on cardiopulmonary status 0 2010
7,941,206 Automatic orientation determination for ECG measurements using multiple electrodes 0 2010
8,515,535 Implantable cardiac device with dyspnea measurement 0 2010
8,496,596 Systems and methods for determining respiration metrics 0 2010
8,103,334 Method and system for display of cardiac event intervals in a resynchronization pacemaker 5 2010
8,321,022 Adaptive therapy for disordered breathing 2010
8,372,012 System and method for generating a trend parameter based on respiration rate distribution 0 2010
8,442,638 Adaptive baroreflex stimulation therapy for disordered breathing 0 2010
8,239,021 Cardiac pacing system for prevention of ventricular fibrillation and ventricular tachycardia episode 0 2010
8,626,276 Cardiac activation sequence monitoring for ischemia detection 0 2010
8,391,974 Apparatus and method for pacing mode switching during atrial tachyarrhythmias 0 2010
8,611,998 Controlled delivery of intermittent stress augmentation pacing for cardioprotective effect 0 2011
8,522,779 Coordinated use of respiratory and cardiac therapies for sleep disordered breathing 0 2012
8,600,502 Sleep state classification 0 2012
8,615,297 Method and apparatus to perform electrode combination selection 0 2012
 
PACESETTER, INC. (13)
7,590,446 Methods for ventricular pacing 4 2004
7,630,767 System and method for communicating information using encoded pacing pulses within an implantable medical system 10 2006
7,778,706 Rate adaptive biventricular and cardiac resynchronization therapy 1 2006
7,702,390 Rate adaptive biventricular and cardiac resynchronization therapy 6 2006
7,881,787 Capture detection system and method CRT therapy 0 2006
7,912,544 CRT responder model using EGM information 0 2007
8,504,152 System and method for estimating cardiac pressure based on cardiac electrical conduction delays using an implantable medical device 0 2007
8,504,153 System and method for estimating cardiac pressure based on cardiac electrical conduction delays using an implantable medical device 0 2007
7,941,217 Techniques for promoting biventricular synchrony and stimulation device efficiency using intentional fusion 3 2008
8,208,999 System and method for estimating electrical conduction delays from immittance values measured using an implantable medical device 1 2008
8,442,634 Systems and methods for controlling ventricular pacing in patients with long inter-atrial conduction delays 0 2008
8,145,309 Monitoring short term fluctuations in PR intervals following premature ventricular contractions 1 2010
8,265,738 CRT responder model using EGM information 1 2011
 
MEDTRONIC, INC. (2)
7,415,307 Ischemia detection based on cardiac conduction time 18 2002
7,792,580 Implantable medical device with his-purkinje activity detection 11 2004
 
MEDIACELL LICENSING CORP (1)
7,819,816 Periodic disordered breathing detection 0 2006

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