Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8447390 | Detecting hemodynamic stability during arrhythmia using the changes in atrial activation Detected changes in atrial activation can be used to discriminate between hemodynamically stable and hemodynamically unstable tachyarrhythmias. ... | 05/21/2013 |
| 8437839 | Electrocardiographic assessment of arrhythmia risk Systems and methods are provided in the disclosure for estimating a risk of arrhythmia in a patient using electrocardiographic analysis. In certain aspects, a method of estimating a risk of arrhythmia in a patient is provided. The method comprises receiving electroc... | 05/07/2013 |
| 8437840 | Episode classifier algorithm The present disclosure is directed to the classification of cardiac episodes using an algorithm. In various examples, an episode classification algorithm evaluates electrogram signal data collected by an implantable medical device. The episode classification algorit... | 05/07/2013 |
| 8433397 | Methods and systems to correlate arrhythmic and ischemic events Systems and methods for determining whether there is a correlation between arrhythmias and myocardial ischemic episodes are provided. An implantable system (e.g., a monitor, pacemaker or ICD) is used to monitor for arrhythmias and to monitor for myocardial ischemic ... | 04/30/2013 |
| 8412315 | Analysis of heart rate variability data in animals for health conditions assessment Assessing health condition of an animal under study includes receiving heart rate information of the animal under study and performing heart rate variability (HRV) analysis on the received heart rate information for determining autonomic dynamics of the animal under... | 04/02/2013 |
| 8412316 | Atrial tachyarrhythmia detection system and method A system and method provide for detecting atrial arrhythmias within an implantable medical device capable of sensing and pacing at least an atrium of a heart. Arrhythmia of the atrium is detected. In response to detecting atrial arrhythmia, delivery of pacing signal... | 04/02/2013 |
| 8401628 | Sensing vector configuration in ICD to assist arrhythmia detection and annotation An apparatus comprises an implantable cardiac signal sensing circuit, configured to provide a sensed near-field depolarization signal from a ventricle and to provide a sensed a far-field intrinsic atrial signal using a far-field atrial sensing channel, and a control... | 03/19/2013 |
| 8401629 | Method and apparatus for detecting and discriminating tachycardia A medical device and associated method for discriminating cardiac events includes determining whether a cardiac evidence counter is greater than a predetermined detection threshold, determining whether to advance from a current state to a next state in response to t... | 03/19/2013 |
| 8401627 | Methods and systems for monitoring heart instabilities Systems and method for assessing a patient's myocardial electrical stability by pacing a patient's heart using a pacing sequence that includes at least two different types of pacing pulses. The pacing rate used is preferably only slightly above the patient's intrins... | 03/19/2013 |
| 8396541 | Signal analysis of cardiac and other patient medical signals A system and method provide detecting and monitoring cardiac electrophysiological changes by determining differences between a reference signal representing a heartbeat signal and an analysis signal representing another heartbeat signal. A set of signal data consist... | 03/12/2013 |
| 8396542 | Parameter value rejection for a cardiac monitor A heart monitor is disclosed. The monitor computes ST segment deviations and stores the results in heart rate based histograms. Periodically, the monitor analyzes the histogram data to determine a median value of ST deviation. Subsequently, beats are excluded from t... | 03/12/2013 |
| 8346350 | Detecting hemodynamic stability during arrhythmia using the changes in atrial activation Detected changes in atrial activation can be used to discriminate between hemodynamically stable and hemodynamically unstable tachyarrhythmias. ... | 01/01/2013 |
| 8332022 | Methods and apparatus for discriminating polymorphic tachyarrhythmias from monomorphic tachyarrhythmias facilitating detection of fibrillation Methods and apparatus are provided for discriminating high rate polymorphic QRS complexes from high rate monomorphic QRS complexes to increase the specificity of detection of polymorphic VT and VF employing wavelet transform signal processing of the QRS complexes ar... | 12/11/2012 |
| 8321005 | System for continuous cardiac pathology detection and characterization A system determines fractal values, a nonlinear fractal ratio and fractal data patterns in a heart and maps determined fractal values to medical conditions. A system for heart performance characterization and abnormality detection includes an interface for receiving... | 11/27/2012 |
| 8315697 | Classification of supraventricular and ventricular cardiac rhythms using cross channel timing algorithm A system and method for classifying cardiac complexes sensed during a tachycardia episode. A first cardiac signal and a second cardiac signal are sensed, where the first cardiac signal has a voltage. A first cardiac complex and a second cardiac complex of a cardiac ... | 11/20/2012 |
| 8311619 | Detection of drastic blood pressure changes A cardiac-activity based prediction of a rapid drop in a patient's blood pressure during extracorporeal blood treatment is disclosed. A proposed alarm apparatus includes a primary beat morphology analysis unit bank of secondary analysis units and an alarm generating... | 11/13/2012 |
| 8301233 | Detecting a condition of a patient using a probability-correlation based model Techniques are described for detecting a condition of a patient using a probability-correlation based model that integrates a plurality of parameters associated with the condition. A medical device that operates in accordance with the techniques obtains a plurality ... | 10/30/2012 |
| 8301234 | Wireless ECG in implantable devices An implantable medical device such as an implantable pacemaker or implantable cardioverter/defibrillator includes a programmable sensing circuit providing for sensing of a signal approximating a surface electrocardiogram (ECG) through implanted electrodes. With vari... | 10/30/2012 |
| 8285371 | Dynamic selection of algorithms for arrhythmia detection An apparatus comprises a first implantable sensor produces a first electrical sensor signal representative of cardiac depolarization events of a heart of a subject, a second implantable sensor that produces a second electrical sensor signal representative of hemodyn... | 10/09/2012 |
| 8260408 | Post-exercise arrhythmia detection Post-exercise arrhythmias are detected by an implantable medical device. In some aspects, post-exercise arrhythmia may be prognostic of a worsening cardiovascular condition. Thus, the detection of post-exercise arrhythmia may be used as an indicator for adjusting th... | 09/04/2012 |
| 8260409 | Self-adjusting ECG morphological feature correlation threshold An apparatus comprises first and second sensing circuits, a template generator circuit, and a correlation circuit. The correlation circuit is configured to identify a first fiducial position in a third cardiac signal sensed using the first sensing circuit during a d... | 09/04/2012 |
| 8255043 | Methods and systems for analyzing T-wave alternans Embodiments of the present invention relate to implantable systems, and methods for use therein, that can detect T-wave alternans and analyze the detected alternans to provide information regarding cardiac instabilities and predict impending arrhythmias. ... | 08/28/2012 |
| 8229552 | Discrimination of supraventricular tachycardia and ventricular tachycardia events A method and system for discrimination of supraventricular tachycardia and ventricular tachycardia events. Morphological features points are extracted from normal sinus rhythm (NSR) complexes and used to generate a NSR template. A numerical convolution is performed ... | 07/24/2012 |
| 8214027 | Cardiac rhythm template generation system and method A method and system provides for generating a snapshot representative of one beat of a patient's normal cardiac rhythm. Cardiac rate channel signals and shock channel signals are sensed. A fiducial point is determined for a predefined number of the cardiac rate chan... | 07/03/2012 |
| 8209003 | Morphology discrimination based on inflection point-related information A morphology discrimination scheme extracts shape characteristics from cardiac signals and identifies an associated cardiac condition based on the shape characteristics. For example, internal data structures may be updated to match the shape characteristics of a kno... | 06/26/2012 |
| 8204580 | Use of patterns in processing on mobile monitoring device and computer system A system include circuitry to receive information from a mobile device including ECG data representative of a beating heart, circuitry to analyze the ECG data using at least one pattern to detect a notable finding in the ECG data and circuitry to determine at least ... | 06/19/2012 |
| 8195280 | Method of and apparatus for classifying arrhythmias using scatter plot analysis A method of classifying arrhythmias using scatter plot analysis to define a measure of variability of a cardiac rhythm parameter such as for example, without limitation, R-R interval, A-A interval, and the slope of a portion of a cardiac signal, is disclosed. The va... | 06/05/2012 |
| 8190247 | Device, method and computer-readable storage medium for detecting and classifying of cardiac events Method for detecting cardiac events, e.g., Atrial Fibrillation (AF) or termination of AF. Based on analysis of the instability observed in heart rate, caused by irregular conduction from the atrium during AF. Change in heart interval is monitored on beat-to-beat bas... | 05/29/2012 |
| 8165666 | System and method for reconstructing cardiac activation information An example system and method of reconstructing cardiac activation information are disclosed. A first cardiac signal and a second cardiac signal are processed via a computing device to determine whether there is a point of change in a derivative of the first cardiac ... | 04/24/2012 |
| 8160685 | Adaptive peak detection system and method for heart pulse The present application discloses an adaptive system and a method for detection of heartbeat peaks. The adaptive detection system for heartbeat peaks includes: means for detecting peaks of ventricular or atrial heartbeat signals; and means for determining heart cond... | 04/17/2012 |
| 8121675 | Device and method for detecting atrial fibrillation Detection of atrial fibrillation involves detecting a plurality of ventricular events and obtaining a series of probabilities of AF, each corresponding to a probability of AF for a different beat window having a plurality of ventricular events. AF onset is detected ... | 02/21/2012 |
| 8090434 | Device, method and computer-readable storage medium for enhanced sense event classification in implantable devices by means of morphology analysis An implantable cardiac device, e.g., a pacemaker, defibrillator, cardioverter or biventricular pacing device, that can sense cardiac electrical signals and accurately classify the sensed events. The device provides a template signal and a test signal originated from... | 01/03/2012 |
| 8086304 | Physiologic signal processing to determine a cardiac condition In a method for determining a cardiac condition, a sensed physiologic signal for a period of time including multiple cardiac cycles is received. Using the received physiologic data, a heart beat frequency to be used as a reference frequency is determined. A pluralit... | 12/27/2011 |
| 8086303 | Cardiac arrhythmias analysis of electrophysiological signals based on symbolic dynamics The disclosed method analyzes cardiac electrophysiological signals, including ECG and internal cardiac electrograms, based on multi-level symbolic complexity calculation and multi-dimensional mapping. The results may be used to objectively identify cardiac disorders... | 12/27/2011 |
| 8082028 | Device, method and computer-readable storage medium for SVT and VT classification A device for classifying of supraventricular tachyarrhythmia (SVT) from ventricular tachyarrhythmia (VT) comprising means for providing a template signal and a test signal originated from an electrogram, the template signal and the test signal comprising samples, me... | 12/20/2011 |
| 8060192 | Method and system for detecting T-wave alternans A method for generating a cardiac electrical instability assessment is disclosed herein. The method includes obtaining a short duration T-wave alternans (SDTWA) measurement, obtaining a long duration T-wave alternans (LDTWA) measurement, and obtaining a cardiac elec... | 11/15/2011 |
| 8055332 | Wireless ECG in implantable devices An implantable medical device such as an implantable pacemaker or implantable cardioverter/defibrillator includes a programmable sensing circuit providing for sensing of a signal approximating a surface electrocardiogram (ECG) through implanted electrodes. With vari... | 11/08/2011 |
| 8046060 | Differentiating arrhythmic events having different origins Methods, systems, and computer program products differentiate between arrhythmic events having different origins. An implantable medical device detects the arrhythmic events. At least one method involves receiving electrograms representing arrhythmic events and sort... | 10/25/2011 |
| 8041416 | Method and apparatus for determining susceptibility for arrhythmias using wedensky modulated electrocardiography and alternans analysis A method of assessing a patient's susceptibility to ventricular arrhythmia obtaining data by applying electrodes to detect electrocardiographic signal. A plurality of synchronized subthreshold electrical stimuli are delivered into the patient's body to present stimu... | 10/18/2011 |
| 8014851 | Signal analysis in implantable cardiac treatment devices Methods and devices for cardiac signal analysis in implantable cardiac therapy systems. Several signal processing and/or conditioning methods are shown including R-wave detection embodiments including the use of thresholds related to previous peak amplitudes. Also, ... | 09/06/2011 |
