US Patent No: 5,836,987

Number of patents in Portfolio can not be more than 2000

Apparatus and method for optimizing cardiac performance by determining the optimal timing interval from an accelerometer signal

Stats

ATTORNEY / AGENT: (SPONSORED)
 

Importance

Loading Importance Indicators... loading....

Abstract

A cardiac stimulating apparatus and method which optimizes cardiac performance by determining, from a filtered waveform transmitted from an accelerometer contained within the cardiac pacer, an optimum timing interval between at least one of intrinsic and paced stimulations of pre-selected chambers of the heart. Digitized data of the accelerometer signal, corresponding with identified R--R intervals, are stored for a plurality of preselected timing intervals for analysis and comparison. The accelerometer signal is filtered to isolate features of the waveform associated with specific cardiac events including for example, the first heart sound, the second heart sound or an amplitude in the frequency domain thereof. Characteristic values of these features of the accelerometer signal are calculated over a plurality of complete R--R intervals for each of the preselected timing intervals. The characteristic values are analyzed and compared to determine which timing interval optimizes cardiac performance. The cardiac stimulating apparatus and method may be used in any of several pacing modes including A-V pacing, V--V pacing, or A--A pacing.

Loading the Abstract Image... loading....

First Claim

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
CARDIAC PACEMAKERS, INC.ST PAUL, MN2441

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baumann, Lawrence S Bloomington, MN 13 721
Salo, Rodney W Fridley, MN 156 4219
Silvermint, Emanuel H Shoreview, MN 5 244
Tockman, Bruce A Scandia, MN 82 2015

Cited Art

Patent Info (Count) # Cites Year
 
PACESETTER, INC. (5)
5,024,222 Hemodynamically rate responsive pacemaker and method of automatically adjusting the escape and A-V intervals 76 1990
5,480,412 System and method for deriving hemodynamic signals from a cardiac wall motion sensor 50 1993
5,476,483 System and method for modulating the base rate during sleep for a rate-responsive cardiac pacemaker 257 1994
5,549,650 System and method for providing hemodynamically optimal pacing therapy 120 1994
5,496,361 System and method for detecting cardiac arrhythmias using a cardiac wall acceleration sensor signal 67 1994
 
CARDIAC PACEMAKERS, INC. (4)
4,686,987 Biomedical method and apparatus for controlling the administration of therapy to a patient in response to changes in physiologic demand 195 1982
4,674,518 Method and apparatus for measuring ventricular volume 183 1985
5,334,222 Cardiac stimulating apparatus and method for heart failure therapy 197 1992
5,674,256 Cardiac pre-ejection period detection 61 1995
 
ADVANCED MEDICAL DEVICES, S.A. (2)
5,031,614 Pacemaker rate control using amplitude and frequency of activity signal 15 1990
5,360,436 Cardiac pacing responsive to multiple activity types 57 1992
 
INTERMEDICS, INC. (1)
4,922,930 Implantable device with circadian rhythm adjustment 28 1989
 
MEDTRONIC, INC. (1)
5,554,177 Method and apparatus to optimize pacing based on intensity of acoustic signal 203 1995
 
MIROWSKI; MIECZYSLAW (1)
4,303,075 Method and apparatus for maximizing stroke volume through atrioventricular pacing using implanted cardioverter/pacer 98 1980
 
PRECISION CONTROL DESIGN, INC. (1)
5,197,489 Activity monitoring apparatus with configurable filters 53 1991
 
Other [Check patent profile for assignment information] (1)
5,063,927 Rate-responsive pacemaker 59 1989

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
CARDIAC PACEMAKERS, INC. (190)
6,044,298 Optimization of pacing parameters based on measurement of integrated acoustic noise 202 1998
7,062,325 Method and apparatus for treating irregular ventricular contractions such as during atrial arrhythmia 26 1999
6,430,438 Cardiac rhythm management system with atrial shock timing optimization 54 1999
6,351,669 Cardiac rhythm management system promoting atrial pacing 67 1999
6,285,907 System providing ventricular pacing and biventricular coordination 203 1999
6,453,201 Implantable medical device with voice responding and recording capacity 37 1999
7,039,461 Cardiac pacing system for prevention of ventricular fibrillation and ventricular tachycardia episode 18 2000
6,353,759 Cardiac rhythm management system promoting a trial pacing 70 2000
7,142,918 Apparatus and method for pacing mode switching during atrial tachyarrhythmias 19 2000
6,957,100 Method and system for display of cardiac event intervals in a resynchronization pacemaker 15 2000
6,501,988 Apparatus and method for ventricular rate regularization with biventricular sensing 59 2000
7,052,466 Apparatus and method for outputting heart sounds 11 2001
6,411,848 System providing ventricular pacing and biventricular coordination 150 2001
6,665,564 Cardiac rhythm management system selecting A-V delay based on interval between atrial depolarization and mitral valve closure 52 2001
6,832,113 Non-invasive method and apparatus for cardiac pacemaker pacing parameter optimization and monitoring of cardiac dysfunction 62 2001
6,597,951 Automatic selection from multiple cardiac optimization protocols 126 2001
7,127,289 Cardiac resynchronization system employing mechanical measurement of cardiac walls 9 2001
7,239,914 Rate smoothing control 7 2001
6,763,267 Ventricular conduction delay trending system and method 34 2002
6,963,777 Cardiac rhythm management system and method using time between mitral valve closure and aortic ejection 22 2002
7,113,825 Method and apparatus for detecting acoustic oscillations in cardiac rhythm 26 2002
7,206,634 Method and apparatus for optimizing cardiac pumping performance 13 2002
7,120,490 Cardiac rhythm management system with atrial shock timing optimization 9 2002
7,127,290 Cardiac rhythm management systems and methods predicting congestive heart failure status 72 2002
6,865,424 Implantable medical device with voice responding and recording capacity 3 2002
6,988,002 Apparatus and method for ventricular rate regularization with biventricular sensing 13 2002
7,069,077 Rate smoothing control 9 2002
7,260,429 Method and apparatus for phonocardiographic image acquisition and presentation 13 2002
7,123,962 Phonocardiographic image-based atrioventricular delay optimization 38 2002
7,101,339 Respiration signal measurement apparatus, systems, and methods 11 2002
8,391,989 Advanced patient management for defining, identifying and using predetermined health-related events 0 2002
7,972,275 Method and apparatus for monitoring of diastolic hemodynamics 1 2002
6,687,541 Method for delivering atrial defibrillation therapy 23 2002
7,062,316 Cross chamber interval correlation 2 2003
7,013,176 Method and apparatus for setting pacing parameters in cardiac resynchronization therapy 33 2003
7,181,278 Apparatus and method for ventricular rate regularization 7 2003
7,142,915 Apparatus and method for ventricular rate regularization 10 2003
7,792,571 Tachyarrhythmia detection and discrimination based on curvature parameters 3 2003
7,500,955 Signal compression based on curvature parameters 5 2003
7,231,248 Resynchronization method and apparatus based on intrinsic atrial rate 15 2003
7,245,969 Cardiac rhythm management system selecting A-V delay based on interval between atrial depolarization and mitral valve closure 5 2003
8,050,764 Cross-checking of transthoracic impedance and acceleration signals 3 2003
7,248,923 Dual-use sensor for rate responsive pacing and heart sound monitoring 40 2003
7,212,860 Apparatus and method for pacing mode switching during atrial tachyarrhythmias 11 2003
7,774,064 Cardiac response classification using retriggerable classification windows 1 2003
7,272,442 Automatically configurable minute ventilation sensor 3 2003
7,499,750 Noise canceling cardiac electrodes 7 2003
7,310,554 Method and apparatus for adjustment of sequential biventricular pacing parameters 20 2003
7,236,819 Separation of a subcutaneous cardiac signal from a plurality of composite signals 26 2003
7,215,997 Dynamic device therapy control for treating post myocardial infarction patients 32 2003
7,431,699 Method and apparatus for third heart sound detection 24 2003
7,115,096 Third heart sound activity index for heart failure monitoring 57 2003
7,865,233 Subcutaneous cardiac signal discrimination employing non-electrophysiologic signal 4 2004
7,047,066 Method and system for display of cardiac event intervals in a resynchronization pacemaker 13 2004
7,047,071 Patient stratification for implantable subcutaneous cardiac monitoring and therapy 3 2004
7,389,138 Electrode placement determination for subcutaneous cardiac monitoring and therapy 0 2004
7,218,966 Multi-parameter arrhythmia discrimination 13 2004
7,302,294 Subcutaneous cardiac sensing and stimulation system employing blood sensor 14 2004
7,570,997 Subcutaneous cardiac rhythm management with asystole prevention therapy 11 2004
7,555,335 Biopotential signal source separation using source impedances 7 2004
7,678,061 System and method for characterizing patient respiration 7 2004
7,510,531 System and method for discrimination of central and obstructive disordered breathing events 8 2004
7,460,908 System providing ventricular pacing and biventricular coordination 7 2004
7,747,323 Adaptive baroreflex stimulation therapy for disordered breathing 7 2004
7,596,413 Coordinated therapy for disordered breathing including baroreflex modulation 6 2004
7,469,697 Feedback system and method for sleep disordered breathing therapy 14 2004
7,209,786 Method and apparatus for optimization of cardiac resynchronization therapy using heart sounds 24 2004
7,706,866 Automatic orientation determination for ECG measurements using multiple electrodes 9 2004
7,383,086 Ventricular conduction delay trending system and method 9 2004
7,480,528 Method and apparatus for monitoring heart failure patients with cardiopulmonary comorbidities 19 2004
7,559,901 Determining a patient's posture from mechanical vibrations of the heart 32 2004
7,572,225 Sleep logbook 29 2004
7,389,141 Biatrial pacing optimization for biventricular pacing 8 2004
7,668,591 Automatic activation of medical processes 1 2004
8,251,061 Methods and systems for control of gas therapy 0 2004
7,970,470 Diagnosis and/or therapy using blood chemistry/expired gas parameter analysis 2 2004
7,468,040 Methods and systems for implantably monitoring external breathing therapy 17 2004
7,662,101 Therapy control based on cardiopulmonary status 4 2004
7,591,265 Coordinated use of respiratory and cardiac therapies for sleep disordered breathing 27 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 3 2004
7,757,690 System and method for moderating a therapy delivered during sleep using physiologic data acquired during non-sleep 0 2004
7,616,988 System and method for detecting an involuntary muscle movement disorder 0 2004
7,610,094 Synergistic use of medical devices for detecting medical disorders 15 2004
7,967,756 Respiratory therapy control based on cardiac cycle 0 2004
7,664,546 Posture detection system and method 23 2004
7,532,934 Snoring detection system and method 13 2004
7,366,569 Non-invasive method and apparatus for cardiac pacemaker pacing parameter optimization and monitoring of cardiac dysfunction 26 2004
7,302,295 Method and apparatus for mimicking respiratory sinus arrhythmia with cardiac pacing controlled via external respiration therapy device 19 2004
7,787,946 Patient monitoring, diagnosis, and/or therapy systems and methods 12 2004
7,890,159 Cardiac activation sequence monitoring and tracking 0 2004
7,981,065 Lead electrode incorporating extracellular matrix 0 2004
7,883,470 Apparatus and method for outputting heart sounds 1 2005
7,662,104 Method for correction of posture dependence on heart sounds 9 2005
7,680,534 Implantable cardiac device with dyspnea measurement 2 2005
7,551,962 Implantable medical device with voice responding and recording capacity 1 2005
7,797,036 Cardiac activation sequence monitoring for ischemia detection 4 2005
7,630,755 Syncope logbook and method of using same 2 2005
7,404,802 Trending of systolic murmur intensity for monitoring cardiac disease with implantable device 6 2005
7,917,196 Arrhythmia discrimination using electrocardiograms sensed from multiple implanted electrodes 0 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 22 2005
7,457,664 Closed loop cardiac resynchronization therapy using cardiac activation sequence information 19 2005
7,424,321 Systems and methods for multi-axis cardiac vibration measurements 14 2005
7,670,298 Sensing rate of change of pressure in the left ventricle with an implanted device 2 2005
7,922,669 Ischemia detection using a heart sound sensor 8 2005
7,630,764 Method and system for delivering cardiac resynchronization therapy with variable atrio-ventricular delay 6 2005
7,775,983 Rapid shallow breathing detection for use in congestive heart failure status determination 1 2005
8,108,034 Systems and methods for valvular regurgitation detection 3 2005
7,766,840 Method and system for heart failure status evaluation based on a disordered breathing index 0 2005
7,479,114 Determining blood gas saturation based on measured parameter of respiration 5 2005
7,662,105 Systems and methods for determining respiration metrics 8 2005
7,761,158 Detection of heart failure decompensation based on cumulative changes in sensor signals 0 2005
8,046,069 Method and apparatus for control of cardiac therapy using non-invasive hemodynamic sensor 0 2005
7,780,606 Hemodynamic stability assessment based on heart sounds 7 2006
7,742,814 Cardiac pacing system for prevention of ventricular fibrillation and ventricular tachycardia episode 5 2006
7,680,530 Method and system for display of cardiac event intervals in a resynchronization pacemaker 5 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 2 2006
8,064,997 Method and apparatus for treating irregular ventricular contractions such as during atrial arrhythmia 0 2006
8,000,780 Detection of myocardial ischemia from the time sequence of implanted sensor measurements 2 2006
7,599,741 Systems and methods for improving heart rate kinetics in heart failure patients 1 2006
8,211,033 Third heart sound activity index for heart failure monitoring 0 2006
8,209,013 Therapeutic electrical stimulation that avoids undesirable activation 0 2006
7,805,192 Apparatus and method for pacing mode switching during atrial tachyarrhythmias 8 2006
7,904,155 Cardiac resynchronization method and apparatus employing mechanical measurement of cardiac walls 2 2006
8,048,001 Method and apparatus for detecting atrial filling pressure 0 2006
8,096,954 Adaptive sampling of heart sounds 1 2006
7,736,319 Ischemia detection using heart sound timing 9 2007
8,249,703 Apparatus and method for ventricular rate regularization 0 2007
8,306,621 Cardiac cycle synchronized sampling of impedance signal 1 2007
7,844,332 Atrioventricular delay adjustment enhancing ventricular tachyarrhythmia detection 1 2007
7,822,473 Resynchronization method and apparatus based on intrinsic atrial rate 2 2007
7,953,484 Method and apparatus for optimization of cardiac resynchronization therapy using heart sounds 0 2007
7,844,330 Dynamic device therapy control for treating post myocardial infarction patients 2 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
7,930,019 Method and apparatus for phonocardiographic image acquisition and presentation 0 2007
8,265,736 Method and apparatus to perform electrode combination selection 0 2007
7,869,877 Cardiopulmonary functional status assessment via heart rate response detection by implantable cardiac device 1 2007
8,209,011 Automatically configurable minute ventilation sensor 1 2007
8,024,039 Subcutaneous cardiac sensing and stimulation system employing blood sensor 0 2007
8,126,547 Method and apparatus for adjustment of sequential biventricular pacing parameters 0 2007
8,126,548 Closed loop impedance-based cardiac resynchronization therapy systems, devices, and methods 1 2008
7,938,782 Prediction of disordered breathing 3 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
8,116,869 Cardiopulmonary functional status assessment via metabolic response detection by implantable cardiac device 0 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
7,963,926 Trending of systolic murmur intensity for monitoring cardiac disease with implantable device 0 2008
8,317,717 Method and apparatus for third heart sound detection 0 2008
8,295,927 Closed loop impedance-based cardiac resynchronization therapy systems, devices, and methods 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
8,126,551 AV delay features 0 2008
8,065,010 Method and apparatus for monitoring heart failure patients with cardiopulmonary comorbidities 1 2009
8,280,508 Signal compression based on curvature parameters 0 2009
7,899,532 Method and apparatus for minimizing post-infarct ventricular remodeling 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
7,962,210 Implantable medical device with voice responding and recording capacity 0 2009
8,054,178 System and method for correlating biometric trends with a related temporal event 1 2009
7,996,071 Biopotential signal source separation using source impedances 0 2009
8,034,000 Ischemia detection using a heart sound sensor 2 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
8,162,844 Managing preload reserve by tracking the ventricular operating point with heart sounds 0 2009
8,121,685 Method and system for delivering cardiac resynchronization therapy with variable atrio-ventricular delay 0 2009
7,951,087 Method for correction of posture dependence on heart sounds 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
8,007,442 Sensing rate of change of pressure in the left ventricle with an implanted device 1 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
7,938,781 Hemodynamic stability assessment based on heart sounds 2 2010
8,239,021 Cardiac pacing system for prevention of ventricular fibrillation and ventricular tachycardia episode 0 2010
8,409,107 Tachyarrhythmia detection and discrimination based on curvature parameters 0 2010
8,332,034 Heart sound tracking system and method 0 2010
8,391,974 Apparatus and method for pacing mode switching during atrial tachyarrhythmias 0 2010
8,167,811 Apparatus and method for outputting heart sounds 0 2011
8,277,389 Sensing rate of change of pressure in the left ventricle with an implanted device 0 2011
8,403,860 Method and apparatus for detecting atrial filling pressure 0 2011
8,423,142 Cross-checking of transthoracic impedance and acceleration signals 0 2011
8,442,633 Cardiac cycle synchronized sampling of impedance signal 0 2012
 
MEDTRONIC, INC. (23)
6,882,882 Atrioventricular delay adjustment 12 2002
7,013,178 Implantable medical device communication system 39 2002
7,610,088 Method and apparatus for assessing left ventricular function and optimizing cardiac pacing intervals based on left ventricular wall motion 3 2003
6,885,889 Method and apparatus for optimizing cardiac resynchronization therapy based on left ventricular acceleration 50 2003
6,871,088 Method and apparatus for optimizing cardiac resynchronization therapy 34 2003
7,558,626 Cardiac resynchronization via left ventricular pacing 1 2003
7,930,026 Monitoring QRS complex to identify left ventricular dysfunction 0 2003
7,027,866 Mechanically-based interval optimization for a biventricular pacing engine 11 2003
7,139,613 Implantable medical device communication system with pulsed power biasing 4 2003
7,286,884 Implantable lead including sensor 5 2004
7,203,541 Real-time optimization of right to left ventricular timing sequence in bi-ventricular pacing of heart failure patients 12 2004
7,559,900 Cardiac sensing and detection using subcutaneous ECG signals and heart sounds 4 2005
7,869,876 Method and apparatus for monitoring and optimizing atrial function 0 2005
7,672,715 Method and apparatus for determining excitation-physiologic response delays 0 2006
7,819,909 Therapy programming guidance based on stored programming history 0 2006
7,930,027 Method and apparatus to deliver mechanically fused pacing therapy 3 2007
7,706,879 Apparatus and methods for automatic determination of a fusion pacing pre-excitation interval 1 2007
8,340,750 Mechanical function marker channel for cardiac monitoring and therapy control 0 2007
8,041,424 Cardiac resynchronization therapy for patients with right bundle branch block 0 2007
8,103,357 Implantable lead including sensor 0 2007
8,150,513 Method and apparatus for assessing left ventricular function and optimizing cardiac pacing intervals based on left ventricular wall motion 0 2009
8,396,563 Clock synchronization in an implantable medical device system 0 2010
8,355,784 Dynamic representation of multipolar leads in a programmer interface 0 2011
 
PACESETTER, INC. (14)
5,991,661 System and method for measuring cardiac activity 51 1997
6,567,700 Implantable cardiac stimulation device and method which optimizes pacing effectiveness 53 2000
6,792,310 Methods, systems and devices for optimizing cardiac pacing parameters 9 2001
6,522,923 Methods, systems and devices for optimizing cardiac pacing parameters using evolutionary algorithms 59 2001
6,622,045 System and method for remote programming of implantable cardiac stimulation devices 67 2001
6,751,503 Methods and systems for treating patients with congestive heart failure (CHF) 16 2001
6,945,939 Hemodynamic analysis 5 2002
7,139,609 System and method for monitoring cardiac function via cardiac sounds using an implantable cardiac stimulation device 25 2003
7,206,636 Pacing optimization based on changes in pulse amplitude and pulse amplitude variability 15 2004
7,096,066 Methods, systems and devices for optimizing cardiac pacing parameters 3 2004
7,414,534 Method and apparatus for monitoring ingestion of medications using an implantable medical device 11 2004
7,689,283 Diastolic mechanical algorithm for optimization of AV timing using a plurality of sensors 3 2007
7,751,889 Closed loop programming for individual adjustment of electro-mechanical synchrony 0 2007
7,876,228 Method and apparatus for monitoring ingestion of medications using an implantable medical device 2 2008
 
PROTEUS DIGITAL HEALTH, INC. (3)
8,036,743 Automated optimization of multi-electrode pacing for cardiac resynchronization 0 2006
7,983,751 Measuring conduction velocity using one or more satellite devices 0 2006
8,412,347 Methods and apparatus for leads for implantable devices 0 2009
 
AVANTEC VASCULAR CORPORATION (1)
7,238,168 Exchangeable catheter 1 2002
 
BIOTRONIK MESS- UND THERAPIEGERATE GMBH & CO. INGENIEURBÜRO BERLIN (1)
6,405,085 Method for determining a variable control parameter for an implantable medical device 9 2000
 
BLOOM, LEONARD, ESQUIRE (1/3 INTEREST) (1)
7,239,915 Hemodynamic optimization system for biventricular implants 9 2004
 
MEDIACELL LICENSING CORP (1)
7,819,816 Periodic disordered breathing detection 0 2006
 
ST. JUDE MEDICAL AB (1)
8,060,201 Medical device 0 2005
 
THE JOHNS HOPKINS UNIVERSITY (1)
7,225,028 Dual cochlear/vestibular stimulator with control signals derived from motion and speech signals 14 2005