Method for discriminating between ventricular and supraventricular arrhythmias
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61N-001/00
A61B-005/0452
A61N-001/39
A61B-005/0464
A61B-005/00
출원번호
US-0573475
(2014-12-17)
등록번호
US-9155485
(2015-10-13)
발명자
/ 주소
Ostroff, Alan H.
Warren, Jay A.
Bardy, Gust H.
출원인 / 주소
CAMERON HEALTH, INC.
대리인 / 주소
Seager, Tufte & Wickhem LLP
인용정보
피인용 횟수 :
1인용 특허 :
187
초록▼
The present invention is directed toward a detection architecture for use in implantable cardiac rhythm devices. The detection architecture of the present invention provides methods and devices for discriminating between arrhythmias. Moreover, by exploiting the enhanced specificity in the origin of
The present invention is directed toward a detection architecture for use in implantable cardiac rhythm devices. The detection architecture of the present invention provides methods and devices for discriminating between arrhythmias. Moreover, by exploiting the enhanced specificity in the origin of the identified arrhythmia, the detection architecture can better discriminate between rhythms appropriate for device therapy and those that are not.
대표청구항▼
1. An implantable cardiac device comprising a battery, operational circuitry coupled to the battery, and a housing for at least the operational circuitry, in which the operational circuitry includes input circuitry configured to couple to at least three electrodes to define a plurality of sensing ve
1. An implantable cardiac device comprising a battery, operational circuitry coupled to the battery, and a housing for at least the operational circuitry, in which the operational circuitry includes input circuitry configured to couple to at least three electrodes to define a plurality of sensing vectors, wherein the operational circuitry is configured to analyze electrical signals in the plurality of sensing vectors as follows: monitoring at least two sensing vectors to identify a signal-to-noise ratio (SNR) for each of the at least two sensing vectors;calculating templates for each of the at least two sensing vectors;on a cardiac complex-by-cardiac complex basis, selecting a best sensing vector as distinguished by SNR; andusing a corresponding template to assess whether a ventricular arrhythmia is occurring. 2. The device of claim 1 wherein the operational circuitry is configured to use, in addition to template analysis in the best sensing vector, a template analysis in a second sensing vector, to assist in determining whether a ventricular arrhythmia is occurring. 3. The device of claim 2 wherein the operational circuitry is further configured such that the template analysis in the best sensing vector uses a static template, and the template analysis in the second sensing vector uses a dynamic template formed from a preceding cardiac complex taken from the second sensing vector. 4. The device of claim 2 wherein the operational circuitry is configured to identify the second vector based on determining that it is generally orthogonal to the best sensing vector. 5. The device of claim 1 wherein the operational circuitry is configured to analyze a set of sensed cardiac complexes using the best sensing vector and calculate a set variance of correlation scores to assess whether a ventricular arrhythmia is occurring. 6. The device of claim 1 wherein the operational circuitry is configured to analyze both a correlation of a sensed cardiac complex to an immediately preceding cardiac complex captured with the best sensing vector, as well as a correlation of the sensed cardiac complex to a stored, static template. 7. The device of claim 1 wherein the operational circuitry is configured to assess a set of correlation results using the best sensing vector, calculate a variance thereof, and use the variance of the set of correlation results in assessing whether a ventricular arrhythmia is occurring. 8. An implantable cardiac system comprising a canister housing a battery and operational circuitry coupled to the battery, and a lead having at least three electrodes to define a plurality of sensing vectors, wherein the operational circuitry includes inputs for the at least three electrodes and is configured to analyze electrical signals in the plurality of sensing vectors as follows: monitoring at least two sensing vectors to identify a signal-to-noise ratio (SNR) for cardiac complexes captured in each of the at least two sensing vectors;calculating templates for each of the at least two sensing vectors;on a cardiac complex-by-cardiac complex basis, selecting a best sensing vector as distinguished by SNR; andperforming a template analysis using a template corresponding to the best sensing vector to assess whether a ventricular arrhythmia is occurring. 9. The system of claim 8 wherein the operational circuitry is configured to use, in addition to template analysis in the best sensing vector, a template analysis in a second sensing vector, to assist in determining whether a ventricular arrhythmia is occurring. 10. The system of claim 9 wherein the operational circuitry is further configured such that the template analysis in the best sensing vector uses a static template, and the template analysis in the second sensing vector uses a dynamic template formed from a preceding cardiac complex taken from the second sensing vector. 11. The system of claim 9 wherein the operational circuitry is configured to identify the second vector based on determining that it is generally orthogonal to the best sensing vector. 12. The system of claim 8 wherein the operational circuitry is configured to analyze a set of sensed cardiac complexes using the best sensing vector and calculate a set variance of correlation scores to assess whether a ventricular arrhythmia is occurring. 13. The system of claim 8 wherein the operational circuitry is configured to analyze both a correlation of a sensed cardiac complex to an immediately preceding cardiac complex captured with the best sensing vector, as well as a correlation of the sensed cardiac complex to a stored, static template. 14. The system of claim 8 wherein the operational circuitry is configured to assess a set of correlation results using the best sensing vector, calculate a variance thereof, and use the variance of the set of correlation results in assessing whether a ventricular arrhythmia is occurring. 15. A method of operation in an implantable cardiac system comprising operational circuitry and at least three of electrodes coupled thereto, in which the operational circuitry includes input circuitry configured to couple to the at least three electrodes to define a plurality of sensing vectors, wherein the method comprises: the operational circuitry monitoring at least two sensing vectors to identify a signal-to-noise ratio (SNR) for each of the at least two sensing vectors;the operational circuitry calculating templates for each of the at least two sensing vectors;on a cardiac complex-by-cardiac complex basis, the operational circuitry selecting a best sensing vector as distinguished by SNR; andthe operational circuitry performing a template analysis using a corresponding template for the best sensing vector to assess whether a ventricular arrhythmia is occurring. 16. The method of claim 15 further comprising the operational circuitry performing a template analysis in a second sensing vector using a template corresponding to the second sensing vector, to assist in determining whether a ventricular arrhythmia is occurring. 17. The method of claim 16 wherein: the template analysis in the best sensing vector uses a static template; andthe template analysis in the second sensing vector uses a dynamic template formed from a preceding cardiac complex taken from the second sensing vector. 18. The method of claim 16 further comprising the operational circuitry selecting the second vector based on determining that it is generally orthogonal to the best sensing vector. 19. The method of claim 15 wherein the template analysis includes analysis of both of a correlation of a sensed cardiac complex to an immediately preceding cardiac complex captured with the best sensing vector, as well as a correlation of the sensed cardiac complex to a stored, static template. 20. The method of claim 15 further comprising the operational circuitry analyzing a set of correlation results using the best sensing vector, calculating a variance thereof, and using the variance of the set of correlation results in assessing whether a ventricular arrhythmia is occurring.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (187)
Neisz Hans J. (Coon Rapids MN), Active can emulator and method of use.
Haefner Paul A. (Crystal MN) Stockburger Mark A. (Inver Grove Heights MN) Linder William J. (Golden Valley MN), After potential removal in cardiac rhythm management device.
Weinberg Alvin H. (Moorpark CA), Apparatus and method for mounting an activity sensor or other component within a pacemaker using a contoured hybrid lid.
Bardy, Gust H.; Rissmann, William J.; Ostroff, Alan H.; Erlinger, Paul J.; Allavatam, Venugopal, Apparatus and method of arrhythmia detection in a subcutaneous implantable cardioverter/defibrillator.
Lu Richard M. T. (Highlands Ranch CO) Steinhaus Bruce M. (Parker CO) Crosby Peter A. (Greenwood Village CO), Automatic atrial pacing threshold determination utilizing an external programmer and a surface electrogram.
Dahl Roger W. (Andover MN) Swanson David K. (Roseville MN) Hahn Stephen J. (Roseville MN) Lang Douglas J. (Arden Hills MN) Heil John E. (St. Paul MN), Body implantable defibrillation system.
Schwartz,Mark; Bocek,Joseph M.; Kim,Jaeho, Cardiac rhythm management systems and methods using multiple morphology templates for discriminating between rhythms.
Langer Alois A. (2405 Velvet Valley Way Pittsburgh PA) Heilman Marlin S. (2405 Velvet Valley Way Gibsonia PA) Mower Morton M. (2405 Velvet Valley Way Baltimore MD) Mirowski Mieczyslaw (2405 Velvet Va, Circuit for monitoring a heart and for effecting cardioversion of a needy heart.
Sweeney, Robert J.; Lovett, Eric G., Curvature based method for selecting features from an electrophysiologic signals for purpose of complex identification and classification.
Steinhaus Bruce M. (Parker CO) Wells Randy T. (Littleton CO), Data compression of cardiac electrical signals using scanning correlation and temporal data compression.
KenKnight Bruce H. (Minneapolis MN) Hall Jeffrey A. (Bloomington MN), Defibrillation patch electrode having conductor-free resilient zone for minimally invasive deployment.
Steinhaus Bruce M. (Parker CO) Wells Randy T. (Littleton CO), Detection of cardiac arrhythmias using correlation of a cardiac electrical signals and temporal data compression.
Anderson Kenneth M. (Bloomington MN) Adams Theodore P. (Edina MN) Supino Charles G. (Arden Hills MN) Kroll Mark W. (Minnetonka MN), Electrode system for implantable defibrillator.
Mar Craig E. (Fremont CA) Pless Benjamin D. (Menlo Park CA) Bush M. Elizabeth (Fremont CA), Flexible defibrillation electrode of improved construction.
Collins Kenneth A. (Neutral Bay AUX) Maker Philip J. (Sydney AUX), Implantable automatic and haemodynamically responsive cardioverting/defibrillating pacemaker with means for minimizing b.
Cooke Daniel J. (Lake Jackson TX) Prutchi David (Lake Jackson TX) Paul Patrick J. (Lake Jackson TX), Implantable cardiac stimulation device with warning system having elongated stimulation electrode.
Causey ; III James D. (Simi Valley CA), Implantable cardioversion-defibrillation patch electrodes having means for passive multiplexing of discharge pulses.
Engle William R. (Blaine MN) Moore ; Jr. E. Neil (Wallingford PA) Spear ; Jr. Joseph F. (Philadelphia PA) Rockland Ronald H. (Parsippany NJ), Implantable cardioverter.
Kroll Mark W. (Minnetonka MN) Adams Theodore P. (Edina MN) Anderson Kenneth M. (Bloomington MN) Smith Charles U. (Minnetonka MN), Implantable cardioverter defibrillator having a smaller displacement volume.
Kroll Mark W. (Minnetonka MN) Adams Theodore P. (Edina MN) Anderson Kenneth M. (Bloomington MN) Smith Charles U. (Minnetonka MN), Implantable cardioverter defibrillator having a smaller displacement volume.
Kroll Mark W. ; Adams Theodore P. ; Anderson Kenneth M. ; Smith Charles U., Implantable cardioverter defibrillator having a smaller energy storage capacity.
Kroll Mark W. (Minnetonka MN) Nelson Randall S. (Pine Springs MN) Adams Theodore P. (Edina MN), Implantable cardioverter defibrillator pulse generator kite-tail electrode system.
Heilman Marlin S. (Gibsonia PA) Langer Alois A. (Pittsburgh PA) Mirowski Mieczyslaw (Owings Mills MD) Mower Morton M. (Baltimore MD) Reilly David M. (Pittsburgh PA), Implantable electrodes for accomplishing ventricular defibrillation and pacing and method of electrode implantation and.
Langer Alois A. (2405 Velvet Valley Way Pittsburgh PA) Kolenik Steve A. (2405 Velvet Valley Way Leechburg PA) Heilman Marlin S. (2405 Velvet Valley Way Gibsonia PA) Mirowski Mieczyslaw (2405 Velvet V, Implantable heart stimulator and stimulation method.
Hauser Robert G. (Long Lake MN), Implantable intravenous cardiac stimulation system with pulse generator housing serving as optional additional electrode.
Hauser Robert G. (Long Lake MN) Dahl Roger W. (Andover MN) KenKnight Bruce H. (Robbinsdale MN), Implantable intravenous cardiac stimulation system with pulse generator housing serving as optional additional electrode.
Hauser Robert G. ; Dahl Roger W. ; KenKnight Bruce H., Implantable intravenous cardiac stimulation system with pulse generator housing serving as optional additional electrode.
Hauser Robert G. ; Dahl Roger W. ; Kenknight Bruce H., Implantable intravenous cardiac stimulation system with pulse generator housing serving as optional additional electrode.
Levine Paul A. ; Sholder Jason A. ; Bornzin Gene A. ; Florio Joseph J. ; Valikai Kenneth ; Weinberg Lisa P., Implantable stimulation device having means for operating in a preemptive pacing mode to prevent tachyarrhythmias and method thereof.
Gabriel Mouchawar ; James D. Causey, III ; Kenneth Valikai, Implantable stimulation system for providing dual bipolar sensing using an electrode positioned in proximity to the tricuspid valve and programmable polarity.
Dahl Roger W. (Andover MN) Kadera James D. (St. Paul MN) Wickham Robert W. (Harris MN) Hoch J. Michael (Plymouth MN) Heil John (St. Paul MN), Insertion and tunneling tool for a subcutaneous wire patch electrode.
Lindemans Fred (Limbricht MN NLX) Padgett Clare (Minneapolis MN) Kiekhafer Thomas (Coon Rapids MN) Holleman Timothy (Ham Lake MN) Keimel John (New Brighton MN) Peterson David (Mounds View MN), Medical electrical lead.
Mader Steven J. (Minneapolis MN) Lisowski John R. (Minneapolis MN) Olson Walter H. (North Oaks MN) Huberty Kenneth P. (Lutz FL), Method and apparatus for discrimination of ventricular tachycardia from supraventricular tachycardia and for treatment t.
Bardy Gust H. (Seattle WA) Olson Walter H. (North Oaks MN) Peterson David K. (Mounds View MN) Taepke Robert T. (Fridley MN), Method and apparatus for discrimination of ventricular tachycardia from ventricular fibrillation and for treatment there.
Armstrong Randolph K. ; Deno D. Curtis ; Cook Douglas J. ; Truong Dat H., Method and apparatus for dual chambered tachyarrhythmia classification and therapy.
Kolenik Steve (Leechburg PA) Langer Alois A. (Pittsburgh PA), Method and apparatus for effecting automatic ventricular defibrillation and/or demand cardioversion through the means of.
Stadler Robert ; Nelson Shannon ; Stylos Lee ; Sheldon Todd J., 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.
Riff Kenneth M. (Plymouth MN) McDonald Ray S. (Roseville MN) German Michael J. (Mounds View MN), Method and apparatus for intracardiac electrogram morphologic analysis.
Caswell Stephanie A. ; Jenkins Janice M. ; DiCarlo Lorenzo A., Method and apparatus for separation of ventricular tachycardia from ventricular fibrillation for implantable cardioverte.
Ostroff Alan H. (Philadelphia PA), Method and device for measuring subthreshold defibrillation electrode resistance and providing a constant energy shock d.
Throne Robert D. (Ann Arbor) Jenkins Janice M. (Ann Arbor) DiCarlo Lorenzo A. (Ann Arbor MI), Method and system for monitoring electrocardiographic signals and detecting a pathological cardiac arrhythmia such as ve.
Saksena Sanjeev (33 Fairway Dr. Glenbrook NJ 08812), Method for high energy defibrillation of ventricular fibrillation in humans without a thoracotomy.
Sarkar,Shantanu; Brown,Mark L, Methods and apparatus for discriminating polymorphic tachyarrhythmias from monomorphic tachyarrhythmias facilitating detection of fibrillation.
Fogarty Thomas J. (5660 Alpine Rd. Portola Valley CA 94028) Howell Thomas A. (Palo Alto CA), Methods and apparatus for rolling a defibrillator electrode.
Fogarty Thomas J. (5660 Alpine Rd. Portola Valley CA 94028) Howell Thomas A. (Palo Alto CA), Methods of surgically implanting a defibrillator electrode within a patient.
Miesel Keith A. ; Roberts Jonathan P. ; Olson John C. ; LaFond Roger ; Chatelle Brenda ; Stetz Eric M., Multiple sensor assembly for medical electric lead.
Olson Walter H. (North Oaks MN) Kaemmerer William F. (Edina MN), Prioritized rule based method and apparatus for diagnosis and treatment of arrhythmias.
Dahl Roger W. (Andover MN) Swanson David K. (Roseville MN) Hahn Stephen J. (Roseville MN) Lang Douglas J. (Arden Hills MN) Heil John E. (St. Paul MN), Process for implanting subcutaneous defibrillation electrodes.
Pless Benjamin D. (Atherton CA) Mitchell Steven M. (Palo Alto CA) Bush M. Elizabeth (Fremont CA), Pulse generator with case that can be active or inactive.
Anderson Kenneth M. (Bloomington MN) Adams Theodore P. (Edina MN) Supino Charles G. (Arden Hills MN) Kroll Mark W. (Minnetonka MN), Safety system for an implantable defibrillator.
White Harley (Redmond WA) Bocek Joseph M. (Seattle WA), Selective cardiac activity analysis atrial fibrillation detection system and method and atrial defibrillator utilizing s.
Dahl Roger W. (Andover MN) Swanson David K. (Roseville MN) Hahn Stephen J. (Roseville MN) Lang Douglas J. (Arden Hills MN) Heil John E. (St. Paul MN), Subcutaneous defibrillation electrodes.
Dahl Roger W. (Andover) Swanson David K. (Roseville) Hahn Stephen J. (Roseville) Lang Douglas J. (Arden Hills) Heil John E. (St. Paul MN), Subcutaneous defibrillation electrodes.
Bennett Tom D. (Shoreview MN) Combs William J. (Eden Prairie MN) Kallok ; Michael J. (New Brighton MN) Lee Brian B. (Golden Valley MN) Mehra Rahul (Stillwater MN) Klein George J. (London CAX), Subcutaneous multi-electrode sensing system, method and pacer.
Florio, Joseph J., System and method for distinguishing electrical events originating in the atria from far-field electrical events originating in the ventricles as detected by an implantable medical device.
Kim Jaeho (13323 NE. 69th Way Redmond WA 98052) White Harley G. (937-210th Ave. NE. Redmond WA 98053), System and method for reducing false positives in atrial fibrillation detection.
McClure, Kelly H.; Bornzin, Gene A.; Mai, Junyu, System and method of automatically adjusting sensing parameters based on temporal measurement of cardiac events.
Bocek Joseph M. ; Finch David P. ; Foshee ; Jr. Phillip D. ; Kim Jaeho, System for detecting atrial fibrillation notwithstanding high and variable ventricular rates.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.