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Heart

Subclass of:

600 - Surgery

600300000 - DIAGNOSTIC TESTING

600481000 - Cardiovascular

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
600509000 Detecting heartbeat electric signal 825
600528000 Detecting heart sound 52
600526000 Blood output per beat or time interval 15
600527000 Detecting heartbeat by sensing movement of oscillatable body-supporting means 6
Entries
DocumentTitleDate
20090012412Detecting Atrial Fibrillation, Method of and Apparatus for - A method and apparatus to determine possible atrial fibrillation or absence of atrial fibrillation that includes detecting pulse rhythms from a succession of time intervals each corresponding to a respective interval of time between successive pulse beats; analyzing the detected pulse rhythms to make a determination of possible atrial fibrillation; indicating the possible atrial fibrillation from the determination; or making a determination of the absence of atrial fibrillation.01-08-2009
20120245479Physiology Monitoring and Alerting System and Process - A system for monitoring physiology, having: a RADAR transmitter and a RADAR receiver; a state estimation module configured to process a returned RADAR signal to detect a presence of motion and set a motion state upon said presence of motion, said state estimation module configured to detect a presence of one or more physiological parameters including heartbeat and respiration, and said state estimation module configured to assign a still state or a concern state based on said presence of physiological parameters; a rate estimation module configured to estimate one or more estimated physiological rates including an estimated respiration rate and an estimated heart rate; and an alerting module configured to provide an alert if an alert value exceeds an alert value threshold, wherein the alert value is derived from at least one of the motion state, concern state, still state and the estimated physiological rates.09-27-2012
20130035603TROPONIN BASED RULE-IN AND RULE-OUT ALGORITHM OF MYOCARDIAL INFARCTION - The present invention relates to a method for diagnosing myocardial infarction in a subject presenting with chest pain. The method is based on the determination of an amount of a cardiac troponin in a first sample from the subject obtained at presentation to a physician, and in a second sample obtained within one hour after the first sample. Moreover, the present invention envisages a method for ruling in myocardial infarction and a method for ruling out myocardial infarction. The said methods are also based on the determination of the amount of a cardiac troponin in a first sample from the subject obtained at presentation to a physician, and in a second sample obtained within one hour after the first sample.02-07-2013
20130079649ESTIMATING CARDIAC PULSE RECOVERY FROM MULTI-CHANNEL SOURCE DATA VIA CONSTRAINED SOURCE SEPARATION - What is disclosed is a system and method for recovering a patient's cardiac pulse rate from a sequence of video images recording of that patient. In one embodiment, a reference signal of a particular frequency is generated at predetermined frequency intervals and a constrained source separation is performed on the source data to obtain an estimation of the source signal intended to be recovered. The reference signal is updated and constrained source separation is again performed. These operations are repeated for all frequencies of the reference signal. The frequency at which a minimum error is achieved is determined to be the subject's recovered cardiac pulse frequency. In such a manner, the source signal is extracted and recovered reliably from captured multi-channel RGB signals or multispectral signals. The teachings hereof find their uses in a variety of medical solutions including various military, security and telemedicine applications. Various embodiments are disclosed.03-28-2013
20100099994IMPLANTABLE HEART ANALYZING DEVICE, SYSTEM AND METHOD - An implantable heart analyzing device has a housing and a control circuit located within said housing. The control circuit generates an output signal adapted to actuate an activator, which is able to make a wall of the heart deflect or vibrate. The control circuit also communicates with a sensor, which can be identical with the activator, with which the movement of the heart wall can be sensed. The control circuit executes a procedure that involves the generation of an output signal and sensing a corresponding sensor signal, and to be able to derive information concerning the tension of the heart wall. An implantable heart analyzing includes the aforementioned heart analyzing device, as well as the activator and the sensor. The heart analyzing device and the system implement a method that results in generation of the aforementioned information concerning the tension of the heart wall.04-22-2010
20090156947Knowledgebased image informatics system and method - The present invention is a system and method for analyzing medical images and image-derived data. Before the medical image procedure is accomplished, the present invention analyzes and reports on the appropriateness of the proposed procedure based upon known client data. After image and image-derived data is received from an image acquisition device, the present invention validates the data against data validation rules. Once the data is validated, it is analyzed against a knowledgebase to create a proposed diagnosis based on the validated data. The knowledgebase is preferably embodied in a binary cascade system.06-18-2009
20120184862SYSTEM AND METHOD FOR PATIENT MONITORING - A system and method for patient monitoring using an array of pressure sensors, and a computer readable data storage medium having stored thereon computer code means for instructing a computer to execute a method for monitoring a patient using an array of pressure sensors. The method comprising the steps of: determining a value of a selection parameter of each pressure sensor of the array; selecting one more of the pressure sensors based on the respective values of the selection parameter; and measuring a vital sign of the patient based on data obtained from said one or more selected pressure sensors.07-19-2012
20090270746CRITERIA FOR MONITORING INTRATHORACIC IMPEDANCE - An exemplary method includes providing information (e.g., a left atrial pressure, a NYHA class, echocardiographic information, etc.), based at least in part on the information, determining a weight and, based at least in part on the weight, determining a threshold for use in intrathoracic impedance monitoring. Such an exemplary method may include comparing an intrathoracic impedance to the threshold, comparing an intrathoracic impedance change to the threshold, or comparing a product of intrathoracic impedance and time to the threshold. Various exemplary methods, devices, systems, etc., are disclosed.10-29-2009
20100081948METHOD AND APPARATUS FOR LOCALIZING MYOCARDIAL INFARCTION DURING CATHETERIZATION - A catheter with a tissue property sensor provides for localization of myocardial infarction (MI) by utilizing one or more differences between properties of infarcted myocardial tissue and properties of normal myocardial tissue. The tissue property sensor is to be placed on endocardial wall or epicardial wall during catheterization to sense at least one tissue property allowing for detection of MI. Examples of the tissue property sensor include, but are not limited to, an optical sensor, an acoustic sensor, a contractility sensor, a temperature sensor, and a drug response sensor. In one embodiment, the tissue property sensor senses a tissue property in various locations on endocardial wall or epicardial wall and detects substantial changes in the tissue property that indicate a boundary between infarcted tissue and normal tissue.04-01-2010
20130066220INTRA-CARDIAC MAPPING AND ABLATING - Systems, methods, and devices allow percutaneous mapping, orientation and/or ablation in bodily cavities or lumens. Such may include a structure that is percutaneously positionable in a cavity, such as an intra-cardiac cavity of a heart. Transducers carried by the structure are responsive to blood flow. For example, the transducers may sense temperature, temperature being related to convective cooling caused by blood flow. A controller discerns positional information or location, based on signals from the transducers. For example, blood flow may be greater and/or faster proximate a port in cardiac tissue than proximate tissue spaced from the port. Position information may allow precise ablation of selected tissue, for example tissue surround a port in the intra-cardiac cavity.03-14-2013
20110046496CARDIAC FORCE SENSOR AND METHODS OF USE - A method and apparatus permit sensing one or more forces exerted by one or more portions of a heart. A force transducer and displacement sensor are disclosed. A movement of one or more portions of a heart can be translated into one or more signals indicative of force. These signals can be used to provide information such as to diagnose or treat one or more conditions.02-24-2011
20120116238SYSTEM AND METHOD FOR MEASURING A RESONANCE FREQUENCY OF A TUBE - The invention proposes a system for measuring a resonance frequency of a tube. The system comprises: an oscillating unit (05-10-2012
20120116237APPARATUS, METHOD AND COMPUTER PROGRAM FOR DETERMINING A PROPERTY OF A HEART - The present invention relates to an apparatus for determining a property of a heart. The apparatus comprises a catheter (05-10-2012
20090012413Cardiac patterning for improving diastolic function - Cardiomyopathy may be treated by distributing a space-occupying diastole-assist agent within the myocardium or within the cardiac venous system in a pattern about one or more chambers of the heart, such that the space-modifying agent integrates into and thickens at least part of the cardiac wall about the chamber so as globally to reduce wall stress, stabilize or even reduce chamber size, and/or improve diastolic function. Some patterns also cause a beneficial global reshaping of the chamber. These changes occur quickly and are sustainable, and have a rapid and sustainable therapeutic effect on cardiac function. Patterns of distribution of space-occupying agent within the myocardium for global resizing may also be used or augmented to treat localized conditions such as myocardial infarctions, overt aneurysm of the ventricular wall as typically forms in response to large transmural myocardial infarctions, and mitral regurgitation due to a noncompliant mitral valve. These techniques may also be used to treat localized conditions that may not yet have progressed to cardiomyopathy.01-08-2009
20120289844DEVICES, SYSTEMS, AND METHODS FOR IMPROVING LEFT VENTRICULAR STRUCTURE AND FUNCTION USING BAROREFLEX ACTIVATION THERAPY - Described here are devices, systems, and methods for improving left ventricular function in a patient with systolic heart failure with left ventricular dysfunction using baroreflex activation therapy. In general the systems have at least one electrode and a control system in communication with the electrode, the control system including a processor and memory, wherein the memory includes software defining a stimulus regime configured to effect improvement in left ventricular function. The methods for improving left ventricular function in a subject typically include identifying a patient in need of left ventricular function improvement and stimulating a baroreceptor with a baroreceptor activation device to improve left ventricular function.11-15-2012
20080269624MORPHOLOGY BASED ARRHYTHMIA DETECTION - A medical device system and associated method sample an EGM signal over a processing window having a predetermined time duration. A number of morphology metrics are determined from the sampled EGM signal, and a heart rhythm is detected in response to the morphology metrics without determining depolarization intervals. The morphology metrics include metrics determined from a slope signal derived from the EGM signal in one embodiment.10-30-2008
20120089035IMPLANTABLE CARDIAC STIMULATOR, SYSTEM, DEVICE AND METHOD FOR MONITORING CARDIAC SYNCHRONY - In a system and method for monitoring cardiac synchrony in a human heart, a first sensor is positioned at a first cardiac wall location that is subject to movements related to longitudinal valve plane movements along the longitudinal axis of the heart, and measures the cardiac wall movements at the first cardiac wall location and a second sensor is positioned at a second cardiac wall location that is subject to movements related to longitudinal valve plane movements along the longitudinal axis of the heart, and measures the cardiac wall movements at the second cardiac wall location. A lead arrangement conducts respective output signals from the first and second sensors to processing circuitry that processes the first and second sensor output signals to produce a synchronization signal therefrom indicative of synchrony in the respective valve plane movements at the first and second cardiac wall locations.04-12-2012
20090099467METHOD AND SYSTEM FOR TRACKING QUALITY OF LIFE IN PATIENTS WITH ANGINA - A method and system for tracking quality of life in a patient with angina includes obtaining activity data and cardiac data, determining a level of physical activity of the patient and identifying an ischemic episode based on the cardiac data obtained during the physical activity. The method also provides for recording an activity level at the time the ischemic episode occurs. Furthermore, the method also provides for presenting activity level trends related to activity levels at the onset of ischemia to a user.04-16-2009
20090149766CORONARY VEIN HEMODYNAMIC SENSOR - A system and method for estimating a hemodynamic performance parameter value of a patient's heart. The system includes a pulse generator and a medical electrical lead implanted partially within a coronary vein of heart. The lead includes at least one sensor located within the coronary vein configured to generate a signal indicative of at least one dimensional parameter of the coronary vein. Changes in the dimensional parameter during one or more cardiac cycles are measured. The hemodynamic performance parameter is estimated based on the change in the dimensional parameter of the coronary vein.06-11-2009
20120108989NON-INVASIVELY MEASURING PHYSIOLOGICAL PROCESS - Equipment (05-03-2012
20120108988ZERO-DRIFT DETECTION AND CORRECTION IN CONTACT FORCE MEASUREMENTS - A method, consisting of inserting a probe having a force sensor into a body cavity of a patient, and receiving from the force sensor a plurality of measurements, each of the measurements indicative of a force applied to the force sensor. The method further includes detecting that the measurements received over a period of time of at least a specified duration have not varied by more than a predefined amount, and setting a baseline of the force sensor, for use in further measurements, to a value based on the measurements received during the period.05-03-2012
20080269625PREDICTION AND MONITORING OF CLINICAL EPISODES - A method is provided for predicting an onset of an asthma attack. The method includes sensing at least one parameter of a subject without contacting or viewing the subject or clothes the subject is wearing, and predicting the onset of the asthma attack at least in part responsively to the sensed parameter. Also provided is a method for predicting an onset of an episode associated with congestive heart failure (CHF), including sensing at least one parameter of a subject without contacting or viewing the subject or clothes the subject is wearing, and predicting the onset of the episode at least in part responsively to the sensed parameter. Other embodiments are also described.10-30-2008
20120143072METHOD AND APPARATUS FOR DETERMINING LEFT VENTRICULAR LUSITROPY - A chronically implanted medical device, connected to a medical electrical lead that includes a sensor, is used to detect diastolic dysfunction. A LV accelerometer signal is sensed through the sensor. Based on the LV accelerometer signal, a determination is made as to whether diastolic dysfunction data exists.06-07-2012
20090171225System and Method for Automated Medical Diagnostic Interpretation and Report Generation - Automated medical diagnostic interpretation and report generation for a non-invasive medical diagnostic test, such as an echo cardiogram, is provided. Various dimension measurements and physiological measurements from an echo cardiogram machine are transferred automatically to a computer over an echo cardiogram machine interface. The dimensions and physiological measurements are automatically interpreted by an intelligent interpretation engine running on a computer, generating various machine evaluations. The physician can approve the machine evaluations, overrule them, or make appropriate adjustments. Upon completion of the physician's review, the physician approved interpretations become diagnostic conclusions, and the report containing the results of the physician's review is generated by the report generation engine.07-02-2009
20090281438HEART MONITORING SYSTEM AND METHOD - An implantable heart monitoring system includes a housing configured for implantation in a subject, at least one sensor member implanted relative to the heart of the subject to detect an electrical signal related to cardiac activity of the heart, a control circuit in the housing, and a memory accessible by the control circuit. The control circuit, from said electrical signal, derives a first value related to the volume of a first part of the heart and derives a second value related to the volume of a second part of the heart, and monitors variation of said first value over time in at least a substantial portion of a heart cycle, and monitors variation of said second value over time in said substantial portion of said heart cycle, and stores in the memory information representing the monitoring of said first and second values that represents a relationship between the first and second values in the substantial portion of the heart cycle and variation of the relationship in the substantial portion of the heart cycle.11-12-2009
20090299200METHOD FOR MONITORING AND COMMUNICATING BIOMEDICAL ELECTROMAGNETIC FIELDS - The present invention provides a system and a method of monitoring and communicating biomedical data to a remote receiver. Specifically, the present invention provides a system and method that can monitor a biomedical-based electromagnetic field, e.g., heart rate variability (HRV) field, emitted from a human user (“sender”), and/or communicate the biomedical-based electromagnetic field to a remote receiver by measuring the biomedical-based electromagnetic field emitted from the sender, creating an electronic signal corresponding to the field and transmitting or broadcast and/or apply the signal to a remote receiver.12-03-2009
20120296225System for Cardiac Condition Detection Responsive to Blood Pressure Analysis - A system provides cardiac arrhythmia detection and performs blood pressure analysis of multiple catheter channels of blood pressure signals to characterize heart hemodynamic activity. A system for heart performance characterization and abnormality detection includes a repository, data processor and output processor. The repository of data comprises, first distribution data representing a probability distribution of a first patient parameter over a first time period and acquired on a first occasion and second distribution data representing a probability distribution of the first patient parameter over a second time period and acquired on a second occasion subsequent to the first occasion. The data processor calculates an overlap indicator indicating degree of overlap of the first distribution data and the second distribution data in a predetermined interval of the distributions. The output processor provides the calculated overlap indicator to a destination device.11-22-2012
20110144509SENSING APPARATUS FOR SENSING AN OBJECT - The present invention relates to a sensing apparatus for sensing an object, wherein the sensing apparatus (06-16-2011
20120041324METHOD AND SYSTEM FOR PATIENT-SPECIFIC MODELING OF BLOOD FLOW - Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.02-16-2012
20080281213CARDIAC COUPLED RESPIRATION COORDINATION SYSTEM - A series of feed-forward applications are designed to coordinate heart/respiration/muscle and brain to produce a better quality of life endpoint. The applications will be used to treat anxiety, sleep disorders, arrhythmias and enhanced performance during athletic training. The coordination may be used as part of a diagnostic tool.11-13-2008
20080281214Method for estimating cardiac pumping capacity - The present invention provides a system and a method for estimating changes in cardiac pumping capacity in response to an intervention from data recorded by an accelerometer positioned on an outer surface of the heart. Interventions such as intravenous administration of nitroprusside, betablocker, epinephrine (adrenaline), or changes in the intravascular volume such as by fluid filling, are considered. It is shown that it is possible to directly correlate changes in cardiac pumping capacity to changes in parameters or graphical representation derived from signals characteristic to the acceleration an outer surface of the heart. In particular, it is shown how the effect of the interventions can be directly read from these parameters or graphical representations, and can thereby assist in decisions regarding the treatment of a cardiac surgery patient. The invention is preferably used in a post-surgery monitoring unit for surveillance of cardiac surgery patients.11-13-2008
20080287816ADJUSTABLE SENSORS FOR USE WITH EXERCISE APPARATUS - Adjustable sensors for use with exercise apparatus are described. An example apparatus includes a support frame to assist a user in an exercise and a sensor integral with the support frame. The sensor is to detect a physiological condition of the user through physical contact with the user, and a position of the sensor is adjustable by the user.11-20-2008
20130218035WAKEFULNESS LEVEL DETERMINATION DEVICE, WAKEFULNESS LEVEL DETERMINATION METHOD, AND COMPUTER READABLE STORAGE MEDIUM - A wakefulness level determination device includes a processor; and a memory. The processor executes: calculating a first feature value from a heartbeat signal of a subject; estimating, from the first feature value calculated at the calculating, a feature value of the subject when not fully awake on the basis of a correlation between a feature value of a heartbeat signal of a person fully waking and a feature value of a heartbeat signal of a person not fully waking; setting, as an index of a wakefulness level, a range from the first feature value calculated at the calculating to the feature value estimated at the estimating; calculating a second feature value from a heartbeat signal of the subject; and determining a wakefulness level of the subject by comparing the second feature value with the index of the wakefulness level that is set at the setting.08-22-2013
20120296226PREDICTIVE DROWSINESS ALARM METHOD - A method for predicting drowsiness is disclosed. By obtaining average heart beat rate values of a driver, and according to the characteristics of the heart beat rate values over a period of time, the method is utilized to determine whether the human being is going to sleep. The method comprises the following steps: detecting a heart beat rate of a driver; calculating a curve of the heart beat rate average during a time interval of X minutes; determining an accumulated period of time during which the slope values of the linear regression equations are smaller than the predetermined slope value Z; determining whether the length of the accumulated period of time is greater than a time threshold T to generate a drowsiness detecting result; and determining whether to raise an alarm based on the drowsiness detecting result.11-22-2012
20080281212Transseptal monitoring device - An implantable medical device includes a first sensor array movable between a collapsed configuration and a deployed configuration. The first sensor array includes a first main portion and at least one rigid sensor movably coupled to the first main portion. A coupler is operatively coupled to the first sensor array and configured to couple the implantable medical device with respect to a heart chamber.11-13-2008
20090264779PREDICTING RISK OF MAJOR ADVERSE CARDIAC EVENTS - Measurement of circulating ST2 and natriuretic peptide (e.g., NT-proBNP) concentrations is useful for the prognostic evaluation of subjects, in particular for the prediction of adverse clinical outcomes, e.g., mortality, transplantation, and heart failure.10-22-2009
20090264778Uni-Polar and Bi-Polar Switchable Tracking System between - An volume of a patient can be mapped with a system operable to identify a plurality of locations and save a plurality of locations of a mapping instrument. The mapping instrument can include one or more electrodes that can sense a voltage that can be correlated to a three dimensional location of the electrode at the time of the sensing or measurement. Therefore, a map of a volume can be determined based upon the sensing of the plurality of points without the use of other imaging devices. An implantable medical device can then be navigated relative to the mapping data.10-22-2009
20080208068DYNAMIC POSITIONAL INFORMATION CONSTRAINED HEART MODEL - Methods and systems for producing a computational model of the heart which is patient-specific are provided. Embodiments of the methods and systems include providing a computational model of a heart, obtaining dynamic positional information data from a patient and modifying the heart model with the dynamic positional information data to produce a patient-specific heart model. The invention finds use in a variety of different applications, including but not limited to diagnosis and treatment of heart conditions.08-28-2008
20110208073ARTERIOSCLEROSIS EVALUATING APPARATUS - The disclosed is an arteriosclerosis evaluating apparatus capable of easily separating pulse wave data detected at one measurement site into an incident wave and a reflected wave and capable of easily determining and evaluating the degree of arteriosclerosis. The pulse wave transmitted through an artery is detected at one site of a living body by a pulse wave detection device, and the detected pulse wave is fitted with a fitting function by a breakdown device so that the detected pulse wave can be broken down into an incident wave and a reflected wave. The degree of arteriosclerosis is evaluated from the amplitude intensities (i.e., peak intensities) of the incident wave and the reflected wave broken down from the pulse wave.08-25-2011
20100204593SYSTEM AND METHOD FOR IDENTIFYING A POTENTIAL CAUSE OF PULMONARY EDEMA - A method of identifying a potential cause of pulmonary edema is provided. The method includes obtaining one or more impedance vectors between predetermined combinations of the electrodes positioned proximate the heart. At least one of the impedance vectors is representative of a thoracic fluid level. The method also includes applying a stimulation pulse to the heart and sensing cardiac signals of the heart that are representative of an electrophysiological response to the stimulation pulse. The method further includes monitoring the cardiac signals and at least one of the impedance vectors with respect to time to identify the potential cause of pulmonary edema.08-12-2010
20110144508METHOD AND DEVICE FOR MONITORING ACUTE DECOMPENSATED HEART FAILURE - An implantable medical device has an impedance determiner for determining a cardiogenic impedance signal based on electric signals sensed by connected electrodes. A parameter calculator processes the impedance signal to calculate an impedance parameter representative of the cardiogenic impedance in connection with the diastolic phase of a heart cycle. This parameter is then employed by the device for monitoring acute decompensated heart failure status of a subject.06-16-2011
20090143689WEARABLE DEVICE ASSEMBLY HAVING ATHLETIC FUNCTIONALITY - A wearable device has a carrier having an aperture. A device has a USB connection and a protrusion wherein the protrusion is received in the aperture to connect the device to the carrier. The device is a USB type device having athletic functionality.06-04-2009
20090326397CLINICAL APPLICATIONS FOR ELECTRICAL TOMOGRAPHY DERIVED METRICS - Clinical applications for electrical tomography derived metrics are disclosed. One aspect of the present invention pertains to a method for generating clinical data by processing one or more metrics obtained via an electrical tomography. The method comprises receiving one or more metrics of an electrode stably associated with a tissue site of a subject, where the metrics are based on an induced signal of the electrode generated in response to one or more continuous electrical fields applied to the subject during an electrical tomography process. In addition, the method comprises generating clinical data of the internal organ of the subject based on the metrics.12-31-2009
20110224563SYSTEM AND METHOD FOR DIAGNOSING AND MONITORING CONGESTIVE HEART FAILURE - A system and method for providing diagnosis and monitoring of congestive heart failure for use in automated patient care is described. At least one recorded physiological measure is compared to at least one other recorded physiological measure on a substantially regular basis to quantify a change in patient pathophysiological status for equivalent patient information. An absence, an onset, a progression, a regression, and a status quo of congestive heart failure is evaluated dependent upon the change in patient pathophysiological status.09-15-2011
20090030331LEAD ASSEMBLY HAVING A TETHERED SENSOR AND METHODS RELATED THERETO - A lead assembly includes a lead body and a tether coupled thereto. The tether includes at least one sensor, such as a pressure sensor.01-29-2009
20090048527ASSESSMENT OF PRELOAD DEPENDENCE AND FLUID RESPONSIVENESS - Methods for determining a cardiovascular parameter reflecting fluid or volume changes and for detecting arrhythmia are disclosed. These methods involve receiving a waveform dataset corresponding to an arterial blood pressure, pulseox, Doppler ultrasound or bioimpedance signal and analyzing the waveform to detect premature ventrical or atrial contractions. Premature ventrical or atrial contractions are detected, for example, by comparing parameters of individual cardiac cycles to the parameters of other or average cardiac cycles. If any premature ventrical or atrial contractions are present, they are removed from the waveform dataset. Once any the premature ventrical or atrial contractions are removed, a cardiovascular parameter reflecting fluid or volume changes using the modified waveform dataset is calculated. In the method for determining arrhythmia, if the number of premature ventrical or atrial contractions exceeds a predetermined arrhythmia threshold, a user such as a medical professional is notified.02-19-2009
20090082679CARDIAC MONITORING SYSTEM - A method of analyzing cardiac functions in a subject using a processing system. The method includes causing one or more electrical signals to be applied to the subject using a first set of electrodes, the one or more electrical signals having a plurality of frequencies. The method includes determining an indication of electrical signals measured across a second set of electrodes applied to the subject in response to the applied one or more signals. Following this, and for a number of sequential time instances, the method includes determining from the indicating data and the one or more applied signals, an instantaneous impedance value at each of the plurality of frequencies, and determining, using the using instantaneous impedance values, an intracellular impedance parameter. The intracellular impedance parameter over at least one cardiac cycle is the used to determine one or more parameters relating to cardiac function.03-26-2009
20110230775IMAGING APPARATUS FOR IMAGING A HEART - An imaging apparatus for imaging a heart is provided, wherein the imaging of the heart is improved such that conclusions about regions of the heart having an abnormal behaviour can be made more accurate and more optimal. The imaging apparatus comprises a first site determination unit for determining a first site of the heart comprising a first property type like a fractionated electrogram (09-22-2011
20120078130METHOD AND APPARATUS FOR ROBUST HEART RATE SENSING - A heart rate sensing system (03-29-2012
20120078129METHOD FOR DETERMINING THE LOCATION OF REGIONS IN TISSUE RELEVANT TO ELECTRICAL PROPAGATION - A method of displaying an image of the location of one or more low voltage structures in tissue is provided. The method includes receiving electrical mapping data corresponding to a portion of the tissue. The method further includes generating an image using the electrical mapping data. Electrical mapping values within at least one voltage range having two endpoints that bound the upper and lower limits of the voltage range are distinguishable from electrical mapping values outside the at least one voltage range. The two endpoints are selected to distinguish the one or more low voltage structures of the tissue from other portions of the tissue.03-29-2012
20120078128Collection and Analysis of Vital Signs - A system is disclosed having a storage, a communications module for interacting with a medical measurement device, an analysis controller, and a test module that allows for the testing and evaluating of decision-support algorithms. A method for testing decision-support algorithms is disclosed having the steps of receiving into storage of a ruggedized, compact computer at least one decision-support algorithm; detecting with a communications module the initiation of a vital-sign monitoring session; receiving and storing vital-sign information into storage by the communications module; pushing the stored vital-sign information by an analysis controller to a test module running the stored at least one decision-support algorithm; and providing at least one output from the decision-support algorithm to at least one of a database and a display.03-29-2012
20120078127Physiological status monitoring system - A load score system includes a metabolic sensor such as a heart rate sensor for a subject is configured to output metabolic data for the subject. A biomechanical load sensing subsystem for the subject is configured to output biomechanical load data. A speed sensor subsystem for the subject is configured to output speed data. One or more databases store zones and a weighting factor for each zone for metabolic data, biomechanical load data, and speed data. A performance module is responsive to the metabolic data, the biomechanical load data, and the speed data and the one or more databases and is configured to calculate a metabolic load score for the subject. A biomechanical load score for the subject and a speed load score for the subject are also calculated. An output module displays the subject's calculated metabolic, biomechanical, and speed load scores.03-29-2012
20090253993IMPLANTABLE SENSOR LEAD - In an implantable sensor lead for sensing mechanical cardiac activity of a heart, as well as a sensing method and a cardiac stimulator embodying such a sensor lead, multiple cardiac activity sensing elements are distributed along a portion of a length of the lead body of the implantable lead. The sensing elements sense or detect mechanical cardiac activity and respectively emit electrical signals corresponding to the detected mechanical cardiac activity. The delivery of cardiac stimulation pulses can be controlled dependent on an analysis of the detected mechanical cardiac activity.10-08-2009
20100160801CARDIAC FUNCTION CHANGE EVALUATING DEVICE - A cardiac function variation evaluation apparatus includes: a continuous flow type auxiliary artificial heart 06-24-2010
20100160800SYSTEM AND METHOD FOR MONITORING MYOCARDIAL INSTABILITY - A method of monitoring myocardial stability includes determining a window length representing an acceptable time period between potential start times associated with at least two physiologic indices and monitoring multiple physiologic indices representative of myocardial stability. Predetermined variations in each of the physiologic indices denote the potential start times and potential end times for candidate events that are indicative of myocardial instability. The method further includes identifying the potential start times associated with at least two of the physiologic indices and declaring at least one of the candidate events to be an actual event of myocardial instability based on the window length and a time period between the potential start times identified by the identifying operation.06-24-2010
20100222687METHOD AND SYSTEM FOR MONITORING VITAL BODY SIGNS OF A SEATED PERSON - A method comprising the step of using a plurality of doppler radars disposed on the seat belt or integrated into the seat belt for monitoring vital body signs of a person seated in a seat of a motor vehicle is disclosed. The disclosed method unobtrusively monitors vital body signs like heart rate and respiration of the person seated in the motor vehicle. A number of safety applications as well as wellness applications can be enabled. Examples are detection of momentary sleep of the driver, vital sign monitoring in case of an accident as well as relaxation exercise using biofeedback to reduce stress for drivers.09-02-2010
20090299201ELECTRODE LEAD INTEGRITY REPORTS - In general, the disclosure relates to techniques for providing a combination of stored diagnostic information, including impedance trend data, into one displayable report that may be used to diagnose a possible condition with an implantable medical electrode lead. One example device includes a processor that is configured to obtain impedance trend data for an electrical path, the electrical path comprising a plurality of electrodes, and to obtain additional diagnostic data that is associated with the electrical path, the additional diagnostic data being distinct from the impedance trend data. The device is further configured to combine both the impedance trend data and the additional diagnostic data into a displayable report that indicates whether there is a possible condition with the electrical path. The additional diagnostic data may include non-sustained episode data, sensing integrity data, pacing threshold, and/or electrogram data (such as P-wave amplitude and/or R-wave amplitude data).12-03-2009
20120197143METHOD OF ANALYSIS OF CARDIAC IMAGES - The invention relates to a method of image analysis of a cardiac image of a human subject who has experienced a myocardial infarction. The method includes delineating an area of said image corresponding to scar tissue within myocardium, from the voxel data for said area, determining at least one value indicative of the likelihood of future cardiac arrhythmia, and optionally applying to said value a prediction matrix generated from the same value for other human subjects who have had a myocardial infarction and who have subsequently experienced cardiac arryhthmia.08-02-2012
20130123651SYSTEM AND METHOD FOR ANALYZING A PATIENT STATUS FOR CONGESTIVE HEART FAILURE FOR USE IN AUTOMATED PATIENT CARE - A system and method for providing diagnosis and monitoring of congestive heart failure for use in automated patient care is described. At least one recorded physiological measure is compared to at least one other recorded physiological measure on a substantially regular basis to quantify a change in patient pathophysiological status for equivalent patient information. An absence, an onset, a progression, a regression, and a status quo of congestive heart failure is evaluated dependent upon the change in patient pathophysiological status.05-16-2013
20100217139HEART RATE MEASUREMENT - The invention relates to a monitoring device (08-26-2010
20090076401Injectable Physiological Monitoring System - A system and method are provided for decompensation prediction of a heart failure patient with one or more injectable detecting systems communicating wirelessly with a remote monitoring system. The system includes one or more injectable detecting systems having a plurality of sensors that provide an indication of at least one physiological event of a patient, a wireless communication device coupled to the one or more injectable detecting systems and configured to transfer patient data directly or indirectly from the one or more injectable detecting systems to a remote monitoring system, and a remote monitoring system coupled to the wireless communication device, the remote monitoring system using processed data to determine heart failure status and predict impending decompensation of the patient.03-19-2009
20080287817APPARATUS FOR DETECTING HUMAN PHYSIOLOGICAL AND CONTEXTUAL INFORMATION - The invention comprises an apparatus for determining the contextual or physiological status of the individual wearing the apparatus. The apparatus is designed to be consumable or disposable. In most embodiments the invention comprises an adhesive housing. In some embodiments, two different sensors are secured to the housing. The apparatus is in electronic communication with a processing unit that can derive analytical status data by using the data received from the two sensors. In some embodiments, the processing unit is programmed to control other devices, or is programmed to trigger an event. In still other embodiments, the apparatus is in electronic communication with a separate computing device, which may contain the processing unit.11-20-2008
20080312546Systems and Methods for Needle Access to an Intervertebral Disc - A catheter with a balloon anchor may be sized to fit through an inner needle and introduced into the patient through the needle. The inner needle may comprise an atraumatic needle with a side port and/or a blunt tip. The catheter may include a radiopaque coil disposed over the distal portion of the catheter body to assist with catheter placement when viewed with fluoroscopy and/or x-ray. The distal portion of the catheter can be very flexible. A balloon inflation tube may terminate proximal to a proximal end of the expandable balloon anchor such that the distal portion of catheter can be flexible. This termination of the inflation tube may also position the inflation tube away from the annulus and nerve roots, so as to avoid irritation of the annulus and rubbing of the nerve roots that may potentially obscure FAD test results.12-18-2008
20090069702Method and apparatus for a heart rate indicator fabric - The present invention relates to a method and apparatus for having a fabric that is able to indicate heart rate zones by using colour indicators which comprises of one or a plurality of sensors embedded in the fabric for the detection of heart rate and the signal from the sensor is transmitted to at least a microprocessor whereby the output from the microprocessor will drive at least one or a plurality of light emitting devices and audible signals will be produced. The emitted light is propagated through a medium providing a visual indication to an observer of heart rate zone on the fabric. The audio signal is driven by output signal from the microprocessor to indicate different heart rate zones. Said medium is attached or woven into natural or synthetic yarn to produce light transmitting fabric that reveals different colours. Said sensors, microprocessor and light emitting devices are embedded or attached in the fabric.03-12-2009
20110172548SYSTEM AND METHOD FOR DIAGNOSING AND MONITORING CONGESTIVE HEART FAILURE - A system for diagnosing and monitoring congestive heart failure for automated remote patient care is presented. A database stores a plurality of monitoring sets relating to patient information recorded on a substantially continuous basis. A server retrieving and processing the monitoring sets includes a comparison module determining patient status changes by comparing at least one recorded measure from one of the monitoring sets to at least one other recorded measure from another of the monitoring sets with both recorded measures relating to a type of patient information, and an analysis module testing each patient status change for one of an absence, an onset, a progression, a regression, and a status quo of congestive heart failure against a predetermined indicator threshold corresponding to a type of patient information as the recorded measures. The indicator threshold corresponds to a quantifiable physiological measure of a pathophysiology indicative of congestive heart failure. Hysteresis parameters may be used as a temporally-defined threshold for changes in pathophysiology.07-14-2011
20130150741BIO-SIGNAL TRANSFER DEVICE, VEHICLE CONTROL DEVICE, VEHICLE AUTOMATIC CONTROL SYSTEM AND METHOD USING THEREOF - Disclosed is a bio-signal transfer device which includes a bio-signal measuring unit which includes at least one sensor and measures a bio-signal of a driver through the sensor; a signal processing unit which removes noise from the bio-signal and converts the noise-removed bio-signal into a digital signal; and a transmission unit which transfers the digital signal by wireless.06-13-2013
20110125038SYSTEM AND METHOD FOR HEART FAILURE PREDICTION - Monitoring a health status of a human subject at defined intervals using a questionnaire. The questionnaire provides a standard script for capture, including data from a patient entered on a visual analog scale (VAS). A tool accurately assesses entries on the VAS for use by an algorithm. The captured data is input into a computer together with a physician assessment of health symptoms of the subject and provided to the algorithm for an assessment of a risk of acute heart failure of the subject. The risk is computed using the algorithm and captured data from a plurality of defined intervals. In one method, the health status of the subject as being either improved or worsening is output to the physician as a function of a value of the computed risk. In another method, a survival function outcome for the subject is predicted using the output of the algorithm.05-26-2011
20110125039AUTOMATIC TRANSMISSION POWER ADJUSTMENT FOR DOPPLER RADAR - The invention relates to a Doppler radar heart sensor comprising a radar signal emitter (05-26-2011
20090048526APPARATUS FOR MONITORING A PERSON'S HEART RATE AND/OR HEART RATE VARIATION; WRIST-WATCH COMPRISING THE SAME - Monitoring apparatus (02-19-2009
20090216137METHOD AND APPARATUS FOR SPECTRUM ESTIMATION - The invention relates to a method for transforming physiological data from the time domain to the frequency domain. The method includes the steps of: providing a plurality of digital data in the time domain; providing a microcomputer programmed to run a recursive Fourier transform estimation algorithm; calculating, for each newly received digital data in the time domain, an integer index using modulo(N) arithmetic based on a time the each newly received data was received; selecting a frequency vector from a plurality of N frequency vectors using the integer index; and updating the plurality of frequency coefficients according to a recursive equation including the selected frequency vector as an input variable. The invention also relates to an apparatus that performs a recursive Fourier transform estimation algorithm to convert data in the time domain to data in the frequency domain.08-27-2009
20090216138Cardio-Function cafeteria methodology - A computer-based, cardio-function cafeteria method for gathering, handling, observing and presenting cardio-function data from a selected subject patient, and for utilizing that data to effect constructive and corrective, data-trend-based, cardio-function intervention. The method features (a) gathering cardio-relevant, cardio-functionality data from a patient including, over extended time, selected-category, cardio-functionality trend data, (b) utilizing such trend data in an implemented feedback manner to effect real-time changes in the patient's cardio-functionality as evidenced by that gathered trend data, and (c), while so implementing the mentioned feedback utilization, continuing to gather and observe the same-category trend data so as to achieve, through appropriate, recurrent utilization feedback, and related constructive and corrective intervention, improved cardio-functionality in relation to the associated trend data.08-27-2009
20110082377ADAPTIVE DATA STORAGE AND DOWNLOAD IN A MEDICAL DEVICE - In an example, a medical device includes a physiological data monitor (PDM), a memory, and a processor. The PDM is configured to monitor a physiological data parameter. The memory circuit is configured to store data collected by the PDM. The processor is configured to detect a data capture event and capture a first segment of physiological data associated with the data capture event. The processor is also configured to determine an amount of memory storage space available and determine a first priority level for the first segment of physiological data. The processor is further configured to determine a second priority level for a second segment of physiological data stored previously and select a processing scheme using the first and second priority levels. Finally, the processor is configured to process, using the processing scheme, the first and second segments of physiological data and store the first segment of physiological data.04-07-2011
20110152703Heart monitoring system or other system for measuring magnetic fields - A system includes at least one first magnetic field sensor configured to measure first and second magnetic fields. The system also includes at least one second magnetic field sensor configured to measure the second magnetic field substantially without measuring the first magnetic field. The system further includes processing circuitry configured to perform signal cancellation to generate measurements of the first magnetic field and to generate an output based on the measurements of the first magnetic field. The sensors could represent magneto-electric sensors. The magneto-electric sensors could be configured to up-convert electrical signals associated with the first and/or second magnetic fields to a higher frequency. The processing circuitry could be configured to identify one or more problems associated with a patient's heart.06-23-2011
20120302903System for Cardiac Impairment Detection Based on Signal Regularity - A system for heart performance characterization and abnormality detection comprises an input processor and a signal processor. The input processor receives first sampled data representing a first signal portion of a heart activity related signal and second sampled data representing a second signal portion of a heart activity related signal. The signal processor determines distribution data associated with degree of similarity between the first and second signal portions by determining a difference between (a) values derived by applying a first function to mean adjusted sampled values of the first signal portion and (b) values derived by applying a second function to mean adjusted sampled values of the second signal portion. In response to the determined distribution data, the signal processor initiates generation of a message associated with the degree of similarity between the first and second signal portions.11-29-2012
20110257544Apparatus for Detecting Body Condition - An apparatus for detecting body condition has a communication unit capable of being worn by the body to be detected. The communication unit includes at least one sensor for detecting a signal indicative of the body condition. The apparatus has also a pickup coil of a component of a mobile phone arranged to operate as an inductive antenna for receiving the signal from the communication unit so that said pickup coil is further operable for said component in order to operate the mobile phone. An existing coil in the mobile phone is used for receiving the signal indicative of the body condition from the detector telemetrically. Therefore there is no need to add new components. Existing component can thus be used to detect the signal telemetrically at the mobile phone.10-20-2011
20110152702Cardiac Arrest Monitoring Device - The present disclosure relates to devices, implementations and techniques for health monitoring. Embodiments of the present disclosure relate to cardiac arrest monitoring devices.06-23-2011
20090082680PERSONALIZED CARDIAC SAFETY RISK - A cardiac safety risk model for use in drug safety testing and/or pharmacological agent development is disclosed. The cardiac safety risk model has at least one baseline function based on at least one baseline biomarker. The cardiac safety risk model also has at least one follow-up function based on at least one follow-up biomarker. The cardiac safety risk model further has at least one overall function based on the at least one baseline function and the at least one follow-up function. A method of generating a cardiac safety risk model and a method of drug safety testing are also disclosed.03-26-2009
20110257545IMAGING BASED SYMPTOMATIC CLASSIFICATION AND CARDIOVASCULAR STROKE RISK SCORE ESTIMATION - Characterization of carotid atherosclerosis and classification of plaque into symptomatic or asymptomatic along with the risk score estimation are key steps necessary for allowing the vascular surgeons to decide if the patient has to definitely undergo risky treatment procedures that are needed to unblock the stenosis. This application describes a statistical (a) Computer Aided Diagnostic (CAD) technique for symptomatic versus asymptomatic plaque automated classification of carotid ultrasound images and (b) presents a cardiovascular stroke risk score computation. We demonstrate this for longitudinal Ultrasound, CT, MR modalities and extendable to 3D carotid Ultrasound. The on-line system consists of Atherosclerotic Wall Region estimation using AtheroEdge™ for longitudinal Ultrasound or Athero-CTView™ for CT or Athero-MRView from MR. This greyscale Wall Region is then fed to a feature extraction processor which computes: (a) Higher Order Spectra; (b) Discrete Wavelet Transform (DWT); (c) Texture and (d) Wall Variability. The output of the Feature Processor is fed to the Classifier which is trained off-line from the Database of similar Atherosclerotic Wall Region images. The off-line Classifier is trained from the significant features from (a) Higher Order Spectra; (b) Discrete Wavelet Transform (DWT); (c) Texture and (d) Wall Variability, selected using t-test. Symptomatic ground truth information about the training patients is drawn from cross modality imaging such as CT or MR or 3D ultrasound in the form of 0 or 1. Support Vector Machine (SVM) supervised classifier of varying kernel functions is used off-line for training. The Atheromatic™ system is also demonstrated for Radial Basis Probabilistic Neural Network (RBPNN), or Nearest Neighbor (KNN) classifier or Decision Trees (DT) Classifier for symptomatic versus asymptomatic plaque automated classification. The obtained training parameters are then used to evaluate the test set. The system also yields the cardiovascular stroke risk score value on the basis of the four set of wall features.10-20-2011
20100292593SPREAD-SPECTRUM METHOD FOR DETERMINING PHYSIOLOGICAL PARAMETERS - An apparatus including a receiver and an extractor is provided for determining a physiological parameter of a living being. The receiver is adapted to receive iterating optical signals, the optical signal including sequences, and a sequence including at least two bright periods during which a transmit light source adopts an on state and at least one dark period during which no transmit light source adopts an on state, and the at least two bright periods being irregularly arranged within a sequence. In addition, the apparatus includes an extractor. The extractor extracts information on the physiological parameter from a receive signal, the extractor being adapted to extract, on the basis of the information on the arrangement of the bright periods within the sequence, a value of a magnitude indicating a vital parameter.11-18-2010
20090171226SYSTEM AND METHOD FOR EVALUATING VARIATION IN THE TIMING OF PHYSIOLOGICAL EVENTS - In embodiments, methods and systems are provided for the calculation of one or more indices representing variability in the timing of events in a signal representing a physiological parameter. In embodiments, the method and system may utilize an infinite impulse response formulation for the calculation of the indices to minimize memory and computational overhead, while additionally making the indices more responsive to newer measurements.07-02-2009
20110137187IMPLANTABLE SENSOR FOR MEASURING PHYSIOLOGIC INFORMATION - An implantable sensor is provided that includes a piezopolymer sensor element including a body having a plurality of layers of a piezopolymer, and an attachment device configured to hold the piezopolymer sensor element in direct contact with at least one of a bodily fluid and bodily tissue such that the piezopolymer sensor element is configured to bend in response to motion of the at least one of bodily fluid and bodily tissue. A pair of electrodes is attached to the piezopolymer sensor element and the electrodes are configured to collect an electrical charge that is generated within the piezopolymer sensor element due to the bending of the piezopolymer sensor element.06-09-2011
20110152704SLEEP DETERMINATION DEVICE AND SLEEP DETERMINATION METHOD - An object of the present invention is to provide a sleep determination device and a sleep determination method capable of precisely determining a sleep stage based on heartbeat information of a subject. The sleep determination device and the sleep determination method according to the present invention obtain the heartbeat of the subject, calculate a heartbeat cycle for each heartbeat based on the obtained heartbeat, calculate difference values until obtaining Nth-degree difference values set in advance with difference values between the successive heartbeat cycles as first-degree difference values and difference values between the successive first-degree difference values as second-degree difference values, generate a return map and a histogram indicative of a distribution of the respective values in a predetermined period of time for each of the heartbeat cycles and the difference values from the first-degree difference values to the Nth-degree difference values, and determine a sleep stage of the subject based on the generated return map and the histogram by referring to a return map and a histogram for determination set in advance for each sleep stage.06-23-2011
20100030091Methods for diagnosing and treating a heart condition in a patient - Various methods for diagnosing and treating heart conditions are disclosed herein. According to one method, nitric oxide is delivered to a patient's lungs when the patient has one or more symptoms of a heart condition. The patient is diagnosed as suffering from a heart condition when a symptom of a heart condition subsides after nitric oxide delivery.02-04-2010
20100030089Methods and systems for monitoring and modifying a combination treatment - Methods, computer program products, and systems are described that include monitoring at least one attribute of an individual during an artificial sensory experience while the individual is under the influence of a bioactive agent, identifying at least one characteristic of the artificial sensory experience that is proximate to a desired change in the at least one attribute of the individual, and/or modifying at least one of the artificial sensory experience or the bioactive agent at least partly based on the identifying at least one characteristic of the artificial sensory experience that is proximate to the desired change in the at least one attribute of the individual.02-04-2010
20100022901VISUALIZATION OF STRESS LEVEL CARDIAC FUNCTIONAL ANALYSIS RESULTS - The invention relates to a system (01-28-2010
20100022900Non-Invasive Method And Device For Measuring Cardiac Output - A system comprising a housing containing a signal generator coupled to an antenna and a dielectric material disposed about the antenna. The device is adapted to generate and direct a plurality of signals towards the heart of the person and measure a magnitude of a signal returned from the heart. The device further comprises a processor to compare differences between a magnitude of a signal propagated and the magnitude of the signal returned off the heart and determine a signal frequency having a maximum return loss value based on those differences. The processor also estimates a change in the amplitude of motion of a portion of a wall of the heart based on the differences between the magnitude of the signal propagated by the device and the magnitude of the signal returned off of the portion of the heart.01-28-2010
20100016740CARDIAC PROTECTION SYSTEM AND METHOD - A cardiac ischemic protection system and method for conditioning a patient's heart is provided. The method can include detecting acute myocardial infarction, angina pectoris, silent ischemia, or stunning and providing closed-loop dyssynchronous pacing to the patient's heart to precondition and/or postcondition the patient's heart in order to reduce ischemic damage.01-21-2010
20110071411METHOD AND APPARATUS FOR SENSING MECHANICAL ENERGY OF AN IMPLANTABLE LEAD - An apparatus comprises an implantable sensor and a signal analyzer circuit communicatively coupled to the implantable sensor. The implantable sensor is configured for coupling to an implantable lead and the implantable sensor provides an electrical vibration sensor signal representative of mechanical vibration of the implantable lead. The signal analyzer circuit is configured to determine a baseline of the vibration sensor signal, detect a change in the vibration sensor signal from the baseline vibration sensor signal, and provide an indication of the change to a user or process.03-24-2011
20100160802Genetic Variants as Markers for Use in Diagnosis, Prognosis and Treatment of Eosinophilia, Asthma, and Myocardial Infarction - Polymorphic variants (e.g., certain alleles of polymorphic markers) that have been found to be associated with high blood eosinophil counts, conditions causative of eosinophilia (e.g., asthma, myocardial infarction), and/or hypertension are provided herein. Such polymorphic markers are useful for diagnostic purposes, such as in methods of determining a susceptibility, and for prognostic purposes, including methods of predicting prognosis and methods of assessing an individual for probability of a response to a therapeutic agent, as further described herein. Further applications utilize the polymorphic markers of the invention include, screening methods and genotyping methods. The invention furthermore provides related kits, computer-readable medium, and apparatus.06-24-2010
20120041319METHOD AND SYSTEM FOR PATIENT-SPECIFIC MODELING OF BLOOD FLOW - Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.02-16-2012
20110306891SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT FOR INDICATING STIMULATION SIGNALS TO A USER - Stimulation system for indicating stimulation signals to a user, provided with at least one heart beat sensor for converting measured heart beats into a signal, a processing circuit configured to process the measured heart beat signals, a user interface configured to indicate stimulation signals to a user, wherein the processing circuit is configured to calculate intervals between the detected heart beats and register a predetermined number of successive intervals, predict a time interval between a detected heart beat and a predicted future heart beat based on the registered intervals, and instruct the user interface to indicate a stimulation signal to a user non-simultaneously with the predicted heart beat at the end of the predicted time interval so as to change the heart rate and/or heart coherence of the user.12-15-2011
20110306890CARDIOMECHANICAL ASSESSMENT FOR CARDIAC RESYNCHRONIZATION THERAPY - A first lead provides therapeutic stimulation to the heart and includes a first mechanical sensor that measures physical contraction and relaxation of the heart. A controller induces delivery of therapeutic stimulation via the first lead. The controller receives signals from the first mechanical sensor indicative of the contraction and relaxation; develops a template signal that corresponds to the contraction and relaxation; and uses the template signal to modify the delivery of therapeutic stimulations. In another arrangement, a second lead, with a second mechanical sensor also provides signals to the controller indicative of contraction and relaxation. The first mechanical sensor is adapted to be positioned at the interventricular septal region of the heart, and the second mechanical sensor is adapted to be positioned in the lateral region of the left ventricle. The controller processes the signals from the first mechanical sensor and the second mechanical sensor to develop a dysynchrony index.12-15-2011
20120041325METHOD AND APPARATUS FOR MANAGEMENT OF HEART FAILURE HOSPITALIZATION - A hospitalization management system including a heart failure analyzer that receives diagnostic data including at least sensor data representative of one or more physiological signals sensed from a hospitalized patient using one or more sensors and assesses risk of rehospitalization for the patient using the diagnostic data. The outcome of the risk assessment is used during and following the patient's hospitalization for reducing the risk of rehospitalization.02-16-2012
20090299202Methods and Apparatus for Locating the Fossa Ovalis and Performing Transseptal Puncture - A method of identifying the fossa ovalis in a patient by positioning one or more electrodes against the tissue of the interatrial septum of the patient and acquiring unipolar and/or bipolar electrograms of the tissue of the interatrial septum while moving the electrodes to a plurality of positions against the tissue of the interatrial septum. The fossa ovalis is identified on the basis of unipolar voltage reduction, signal fractionation, broadened signal, reduced signal slew rate, reduced local myocardial impedance, increased phase angle and/or increased pacing threshold. An apparatus for identifying the fossa ovalis is also provided.12-03-2009
20110112413METHOD FOR AUTOMATED EKG ANALYSIS - Systems and methods for analyzing electronic cardiac signals for use in clinical diagnostics are described. System and method embodiments are configured to assist in the analysis of details of EKG signals and vector cardiograms to determine how patients should be categorized into specific cardiac risk categories, such as an acute coronary syndrome category. System configurations may comprise memory devices, computing systems, and EKG data sources positioned at various local or remote positions, and connected via various data connectivity modalities. Various parameters may be utilized to assist in the drawing of one or more conclusions regarding the cardiac condition of a patient.05-12-2011
20120041323METHOD AND SYSTEM FOR PATIENT-SPECIFIC MODELING OF BLOOD FLOW - Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.02-16-2012
20120041320METHOD AND SYSTEM FOR PATIENT-SPECIFIC MODELING OF BLOOD FLOW - Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.02-16-2012
20110105922MYOCARDIAL CONTRACTILE RESERVE MEASURED DURING ACTIVITIES OF DAILY LIVING - A contractile reserve indicator, corresponding to a predicted value of a maximum change in myocardial contractility that can be achieved by a subject, can be determined using a detected indication of cardiac contractility across various different physical activity levels.05-05-2011
20120041321METHOD AND SYSTEM FOR PATIENT-SPECIFIC MODELING OF BLOOD FLOW - Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.02-16-2012
20120041322METHOD AND SYSTEM FOR PATIENT-SPECIFIC MODELING OF BLOOD FLOW - Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.02-16-2012
20090030332 MICROFABRICATED CARDIAC SENSOR WITH TACTILE FEEDBACK AND METHOD AND APPARATUS FOR CALIBRATING THE SAME USING A PLURALITY OF SIGNALS - A plurality of sensor data acquired from the heart using novel microfabricated sensors is compared to analogous data derived by conventional imaging modalities extrinsic to the heart. The cross-correlation of corresponding signals facilitates the development of sensor nanotechnologies including a catheter for performing ablation of cardiac arrhythmias and a biocompatible electrical interface with monitoring capabilities. Cross-correlation of data acquired with differing techniques enables system calibration and design, as well as, validation of the data acquired with next generation sensors. In a preferred mode of the invention, novel cardiac nanosensors enable an operator to differentiate one individual patient's cardiac tissue mechanical properties from others by using a sense of touch much as clinicians today use auditory cues with a stethoscope.01-29-2009
20110098584IMPLANT TRANSMITTER - A monitoring system is provided that enables the monitoring of a heart in a living organism by continuously measuring both pressure and volume in a chamber of the heart, preferably the left ventricle (LV). The pressure and volume measurements are acquired using a single sensing tip and are communicated to a transmitting device to be wirelessly transmitted to a receiving device, wherein they are used to monitor the heart. The system may also incorporate a temperature measurement that can be transmitted with the volume and pressure measurement to provide further data for monitoring. The system may also extract an electrocardiogram (ECG) signal from the volume measurement. This allows the monitoring of up to four signals that can be used to determine the beat by beat state of cardiac output and any changes caused by disease or therapy. In addition to a compact design, the system may also incorporate an energy saving timing scheme that reduces the power required per acquisition cycle and thus increases the operational lifetime of the transmitting device.04-28-2011
20110098583HEART MONITORS AND PROCESSES WITH ACCELEROMETER MOTION ARTIFACT CANCELLATION, AND OTHER ELECTRONIC SYSTEMS - A heart monitor includes a single chest accelerometer (04-28-2011
20110087117REAL-TIME VISUAL ALERT DISPLAY - An alert system for patient treatment that incorporates patient data to display information in readily identifiable icons for vital organs, and in a useable, real-time, updated fashion that extracts data from the medical history, the current medical management, and the current physiologic monitors to produce warnings and alerts to enable practitioners to be made aware of physiologic systems at risk, (physiologic systems in normal range, borderline normal range, and abnormal range of function). These data are not only presented, but also use real-time queries and calculations to enable practitioners to have the types of data that would traditionally assist them in patient care but only be available by reviewing the medical literature and/or doing retrospective individual calculations while providing patient care.04-14-2011
20100016741Heart rate monitor - A waterproof heart rate monitor device, method, and system are disclosed that transmit heart rate information to a user. In operation one or more infrared sensor sits against skin of a user to measure his or her heart rate. An internal computer, or micro-processor, that is coupled to one or more sensors then calculates the number of beats/minute (b/m) that a user's heart is beating and generates output signals to an output unit such as an ear plug or via bone conduction transducer to provide a user an audio representation of his or her heart rate.01-21-2010
20110092833ECG Lead System - An ECG lead system for use with a plurality of unique diverse ECG floor monitors for when a patient is substantially immobile and/or a plurality of unique diverse ECG telemetry monitors, is provided. The ECG lead system includes a plurality of unique adapters, wherein each adapter includes an input receptacle configured for selective electrical connection with a device connector of an ECG lead set assembly; and at least one unique monitor plug electrically connected to the input receptacle. Each monitor plug is configured to selectively electrically connect to a corresponding receptacle of a respective unique diverse ECG floor monitor or unique diverse ECG telemetry monitor.04-21-2011
20120157864CARDIAC DECOMPENSATION DETECTION USING MULTIPLE SENSORS - Physiological data, such as thoracic impedance data, can be obtained over a first time window to establish a baseline, or can be used to form one or more data clusters. Additional physiological data, such as thoracic impedance test data acquired over a later time window, can be obtained and compared to the baseline or data clusters to determine an indication of worsening heart failure. In an example, a quantitative attribute of one or more data clusters can be monitored and used to provide an indication of worsening heart failure. A posture discrimination metric can be obtained, such as using the physiological data obtained over the first time window. The additional physiological data, such as can be obtained over a second time window, can be compared to the posture discrimination metric to provide a patient posture status.06-21-2012
20110105921MONITORING AN INTERVAL WITHIN THE CARDIAC CYCLE - Aspects of this disclosure describe measuring intervals within a cardiac cycle to, for example, determine whether a patient is a candidate for cardiac therapy initiation or modification. The intervals may be measured in response to a trigger identifying a physiological event. The intervals and an identification of the physiological event may be stored. A physician or clinician may determine whether the patient is a candidate for cardiac therapy modification based on the measured intervals.05-05-2011
20120220886Method and Apparatus for Measuring Blood Volume - In one aspect, a conductance catheter is provided for measuring the volume of a fluid. The conductance catheter comprises a series of electrodes and a circuit to compensate for variations in sensitivity of the electrodes in the catheter. In another aspect, a resistivity sensor is provided for determining the resistivity of a fluid. The sensor comprises a series of electrodes spaced such that the total distance between endmost electrodes does not exceed the diameter of the catheter deploying the sensor.08-30-2012
20120316451Event Evaluation Using Heart Rate Variation for Ingestion Monitoring and Therapy - Medical, diagnostic, and/or patient monitoring methods, systems and devices enhance ingestion-related health, often by screening and/or treating patients with eating disorders. Optionally, a gastric electric stimulation (GES) therapy system monitors changes in an obese patients' autonomic balance associated with a stimulation event and/or a meal event by analyzing heart rate variability (HRV) of the patient. These event-based changes in autonomic balance may be used to determine which patients will likely respond to GES therapy, and/or to control the GES therapy administration.12-13-2012
20130184597ACUTE ISCHEMIA DETECTION BASED ON PARAMETER VALUE RANGE ANALYSIS - 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 normal range of ST deviation for a particular heart rate range. The monitor computes heart rate dependent ischemia detection thresholds based on the upper and lower boundaries of the normal range.07-18-2013
20120083705Activity Monitoring Systems and Methods of Operating Same - The present inventions, in one aspect, is an activity monitoring system comprising a fixture having size/shape adapted to couple to a location on the user's body and a particular signature; and a portable monitoring device adapted to detect the fixture's particular signature. The monitoring device includes a housing that is adapted to engage the fixture; activity sensors, disposed in the housing, to detect activity of the user and to generate data which is representative of the activity of the user; and processing circuitry, disposed in the housing, to calculate an activity-related quantity of the user using the data which is representative of the activity of the user, wherein the processing circuitry: determines the monitoring device is engaging the fixture by detecting the fixture's particular signature, and, in response thereto, calculates the activity-related quantity using data from a set of the activity sensors.04-05-2012
20120215122ARRHYTHMIA INFORMATION MANAGEMENT - Systems and methods for managing cardiac information concerning a patient are provided. In some aspects, cardiac information objects are displayed graphically at an interface having at least two axes. Time is displayed on a first axis of the at least two axes and parameters of the cardiac information objects are displayed on a second axis of the at least two axes. Each cardiac information object is spatially associated with at least a portion of the time displayed and a parameter displayed. In some aspects, the interface advantageously allows a user to conveniently view and manage the cardiac information objects.08-23-2012
20100049065PATIENT WEIGHT AND ANKLE DISPLACEMENT CORRELATION DEVICE - A device for correlating trend data with respect to a patient's weight ankle displacement can identify conditions indicative of congestive heart failure. A weight scale or similar device coupled with imaging mechanism operable to measure ankle displacement collects a plurality of measurements over a period of time. Over time trend analysis of both the patient's weight and the ankle displacement measurements can be obtained and compared to identify whether over a particular sample period an increase in a patient's ankle displacement is or is not correlated with an increase in the patient's weight. When an increase in ankle displacement is identified as not correlating to a corresponding change in the patient's weight an alert can be issued of conditions indicative of congestive heart failure.02-25-2010
20100049064COMPOSITIONS AND METHODS FOR SCREENING CARDIOACTIVE DRUGS - We have developed a reduced Drosophila heart preparation in which dissection of the fly heart removes nervous system input and reveals its inherent myogenic activity, which can be preserved for several hours. High speed image capture combined with computer-based analytical packages allows us to generate the equivalent of M-mode traces obtained from ultrasounds of human hearts.02-25-2010
20100049063DEVICES AND METHODS FOR ACCELEROMETER-BASED CHARACTERIZATION OF CARDIAC FUNCTION AND IDENTIFICATION OF LV TARGET PACING ZONES - Systems according to the invention employ an acceleration sensor to characterize displacement and vibrational LV motion, and uses this motion data to characterize the different phases of the LV cycle for analyzing LV function. Systems may identify a target pacing region or regions in the LV or RV using the acceleration sensor by localizing regions of late onset of motion relative to the QRS, or isovolumic contraction, or mitral valve closure, or by pacing of target regions and measuring LV function in response to pacing. Systems further provide an implantable or non-implantable acceleration sensor device for measuring LV motion and characterizing LV function. An implantable myocardial acceleration sensing system (“IAD”) includes at least one acceleration sensor, a data acquisition and processing device, and an electromagnetic, e.g., RF, communication device. The IAD may be integrated into the pacing lead of a CRT device and can operate independently of the CRT IPG.02-25-2010
20100030090Methods and Apparatuses for Detection of Myocardial Ischemia Upon Exertion - Various method embodiments of the present invention concern sensing patient-internal pressure measurements indicative of physiological exertion, identifying one or more steady state periods of physiological exertion based on the patient-internal pressure measurements, sensing extra-cardiac response data and cardiac response data corresponding to the one or more physiological exertion steady state periods, respectively comparing the extra-cardiac response data and the cardiac response data to extra-cardiac response information and cardiac response information associated with equivalent levels of physiological exertion intensity of the one or more steady state periods, and determining the likelihood that myocardial ischemia occurred during the one or more steady state periods based on the comparison of the extra-cardiac response data to the extra-cardiac response information and the cardiac response data to the cardiac response information.02-04-2010
20120179054PERIVASCULAR LEAK REPAIR SYSTEM - The perivascular leak repair system, and method of using the same, of the present invention provides a sealant reservoir with a repair catheter operably attached; a flow control device disposed between the sealant reservoir and the repair catheter, and the flow control device responsive to a flow control signal; a heart phase detector generating a diastole phase signal; an injection switch generating a injection signal; and a flow controller responsive to the diastole phase signal and the injection signal, and generating the flow control signal. A method of sealing a perivascular leak comprises identifying the perivascular leak; inserting a repair catheter to the perivascular leak; injecting sealant at the perivascular leak; and removing the repair catheter. The sealant can be injected when the heart is in diastole to sweep the sealant into the perivascular leak.07-12-2012
20120253212APPARATUS AND METHOD FOR CALCULATING MICROVIBRATION FEATURE QUANTITY - A microvibration feature quantity apparatus includes a beat signal receiver receiving a beat signal output from a Doppler sensor, which radiates a radiation wave at a predetermined frequency to a body to be observed and senses part of the radiation wave reflected by the body to output the beat signal at a frequency corresponding to a difference in frequency between the radiation wave and the reflected part of the wave, a frequency converter transforming the received beat signal into a frequency-domain signal, and a beat signal feature quantity calculator using the frequency-domain signal to derive a beat signal feature quantity exhibiting an abrupt change with respect to time of a vibration velocity of the microvibration, thereby accurately calculating a feature quantity of the microvibration raised in the body.10-04-2012
20120190993LOCATING AN INDICATOR - A system to determine and illustrate a location of position element within a volume is disclosed. The position element can be used to determine the position of a portion of an instrument. The instrument can include one or both of a cannulated member and a lead member passed through the cannula.07-26-2012
20120232414COMPOSITE HUMAN PHYSIOLOGICAL STRESS INDEX BASED ON HEART BEAT AND SLEEP AND/OR ACTIVITY HISTORY DATA INCLUDING ACTIGRAPHY - Systems and methods are provided for providing a composite stress index representing a quantified stress level that an individual may be experiencing or may have experienced during a time interval of interest. The composite stress index is determined based on a combination of heart beat data representative of cardiac activity of the individual during the time interval of interest and one or both of: sleep history data comprising one or more sleep onset times and one or more awakening times during the time interval of interest; and physical activity history data representative of gross motor activity of the individual during the time interval of interest.09-13-2012
20120265082INTRA-OPERATIVE HEART SIZE MEASURING TOOL - A heart size measuring tool includes a tubular body, a flexible measuring cord having length indicia, a measuring cord support mechanism movable between retracted and extended states with respect to the body, and an actuating mechanism to move the measuring cord support mechanism. When in the retracted state the measuring cord support mechanism is positioned within the tubular body with the measuring cord in a collapsed position. When the measuring cord support mechanism is in the extended state the measuring cord extends around a portion of a heart to be measured. A scale on the body can be used in connection with the indicia on the measurement cord to provide a reading of the heart size.10-18-2012
20120265083CARDIOVASCULAR HAPTIC HANDLE SYSTEM - Cardiac tissue motion characteristics acquired by novel cardiac sensors are analyzed and processed for the derivation of physiological indices. The indices are output to a hand held local or remote volumetric haptic display and enable an operator to obtain motion related dynamic characteristics of cardiac tissues. The ability to tactually sense the motion of cardiac tissue and the affect on such motion from inserted cardiovascular instrumentation enhances the operator's performance of procedures including the positioning and placement of implanted catheters/sensors, extraction of permanently implanted leads and delivery of cardiovascular therapies. Optimal haptic rendering is achieved by using computational techniques to reconstruct the physically and perceptually relevant aspects of acquired signals and bridge the gap between the inserted catheter and operator's hand/catheter handle.10-18-2012
20110046495DEVICE FOR MEASURING THE SIZE OF AN INTRACARDIAC OPENING02-24-2011
20120271182Identifying Seizures Using Heart Data from Two of More Windows - Methods and systems for characterizing a seizure event in a patient, including determining a time of beat sequence of the patient's heart, determining a first HR measure for a first window, determining a second HR measure for a second window, wherein at least a portion of the first window occurs after the second window, determining at least one HR parameter based upon said first HR measure and said second HR measure, identifying an onset of the seizure event in response to determining that at least one HR parameter crosses an onset threshold, identifying an end of the seizure event in response to determining that at least one HR parameter crosses an offset threshold.10-25-2012
20120271181IDENTIFYING SEIZURES USING HEART RATE DECREASE - Methods and systems for detecting a seizure event, including receiving heart beat data versus time for a patient, detecting an increase in the heart rate of a patient from a baseline heart rate to an elevated heart rate, detecting a decrease in heart rate from the elevated heart rate, for a time interval occurring during said decrease in heart rate, determining at least one of a) a rate of decrease in heart rate and b) a rate of change in a rate of decrease in heart rate, and detecting a seizure event in response to determining at least one of a) a rate of decrease in heart rate greater than a threshold rate of decrease, and b) a rate of change in the rate of decrease less than a threshold rate of change in a rate of decrease.10-25-2012
20120271183WITHIN-PATIENT ALGORITHM TO PREDICT HEART FAILURE DECOMPENSATION - This document discusses, among other things, systems and methods for predicting heart failure decompensation using within-patient diagnostics. A method comprises detecting an alert status of each of one or more sensors; calculating an alert score by combining the detected alerts; and calculating a composite alert score, the composite alert score being indicative of a physiological condition and comprising a combination of two or more alert scores.10-25-2012
20100228137HEART RATE ALARM SYSTEM AND METHOD - An electronic device and method for alarming using an electronic device receives periodically a plurality of heart rates of a user from an accessory device using a BLUETOOTH device of the electronic device in a time duration, and compares the plurality of heart rates sequentially. The system and method further generates an alarm sound to remind the user by an alarm clock of the electronic device, in response to a determination that the plurality of heart rates has decreased gradually. Furthermore, the system and method resets the heart rates to zero, in response to a determination that the plurality of heart rates has not decreased gradually.09-09-2010
20120277605DYNAMIC HEART RATE THRESHOLD FOR NEUROLOGICAL EVENT DETECTION - A method may include sensing a time of beat sequence of a patient's heart and processing said time of beat sequence with a medical device to identify a change in heart rate of a patient from a first heart rate to a second heart rate. The method may continue by determining with the medical device at least one of a) a ratio of the second heart rate to the first heart rate and b) a difference between the second heart rate and the first heart rate. The method may include determining with the medical device at least one of a) a dynamic ratio threshold for the ratio and b) a dynamic difference threshold for the difference, wherein the at least one threshold is based upon the first heart rate. The ratio and/or the difference may be compared to the threshold(s) to detect a neurological event, for example, an epileptic seizure.11-01-2012
20120101395DEVICE AND COMPUTER PROGRAM FOR ANALYZING BIOLOGICAL BODY STATE - A state change of a person is captured with timing closer to consciousness of the person. A frequency slope waveform of a time series signal of a pulse wave of a body of a person detected by an air pack is obtained by a frequency slope time-series analyzing and a computing device and a frequency fluctuation time-series waveform is obtained by a frequency fluctuation time-series analyzing and computing device. By comparing changes of two waveforms with each other in a waveform determining device, a state change of a person can be captured with timing closer to consciousness of the person. A sleep-onset point can be specified clearly based upon the case where a fluctuation waveform steep gradient portion indicating a steep gradient change emerges in the frequency fluctuation waveform, and amplitude and a base line position of the frequency fluctuation waveform or the frequency slope waveform are in predetermined ranges. Further, when a mean slope line of the fluctuation waveform steep gradient portion is approximately parallel to a mean slope line of the slope waveform steep gradient portion in the frequency slope waveform before emergence of the fluctuation waveform steep gradient portion, a sleepiness waveform is determined, so that a sleepiness state leading to sleep onset can be detected.04-26-2012
20100179442SYSTEM FOR SENSING, DIAGNOSING AND TREATING PHYSIOLOGICAL CONDITIONS AND METHODS - One method for diagnosing a cardiovascular-related condition in a breathing person comprises interfacing a valve system to the person's airway. The valve system is configured to decrease or prevent respiratory gas flow to the person's lungs during at least a portion of an inhalation event. The person is permitted to inhale and exhale through the valve system. During inhalation, the valve system functions to produce a vacuum within the thorax to increase blood flow back to the right heart of the person, thereby increasing blood circulation and blood pressure. Further, at least one physiological parameter is measured both prior to and while the person inhales and exhales through the valve system. The measured parameters are evaluated to confirm the initial diagnosis of a cardiovascular condition.07-15-2010
20080228090METHOD AND APPARATUS FOR MANAGEMENT OF HEART FAILURE HOSPITALIZATION - A hospitalization management system including a heart failure analyzer that receives diagnostic data including at least sensor data representative of one or more physiological signals sensed from a hospitalized patient using one or more sensors and assesses risk of rehospitalization for the patient using the diagnostic data. The outcome of the risk assessment is used during and following the patient's hospitalization for reducing the risk of rehospitalization.09-18-2008
20130172762HEART PARAMETER MONITOR - An electronic device to measure the level of mental activity of an individual includes measurement structure for measuring the interval between every heart beat of the individual. The device also includes analysis structure that is constructed to perform a series of mathematical calculations ultimately to compute an index number for the individual. That index number is a measure of mental activity of the individual and is usable to predict the quality of the individual's performance in a desired activity.07-04-2013
20130178753Heart Rate Monitor - A heart rate monitoring system includes a wrist-borne heart rate monitor for detecting the heart rate of a wearer and having a mobile telephone network transmitter and/or WiFi transmitter for transmitting the heart rate data to the cloud. A display device includes a mobile telephone network receiver and/or WiFi receiver and receives the data and/or information processed from the data on the cloud and displays the same to the wearer.07-11-2013
20130178754Monitoring Device With An Accelerometer, Method And System - A monitoring device for monitoring the vital signs of a user is disclosed herein. The monitoring device is preferably comprises an article, an optical sensor, an accelerometer and processor. The optical sensor preferably comprises a photodetector and a plurality of light emitting diodes. A sensor signal from the optical sensor is processed with a filtered accelerometer output signal from the accelerometer to create a filtered vital sign signal used to generate a real-time vital sign for a user.07-11-2013
20080221466Patient Monitoring System - The present invention relates to a patient monitoring system, a patient monitoring method and a computer program. In order to improve the monitoring of patients, particularly for cardiac monitoring and weight monitoring, a patient monitoring system (09-11-2008
20130144178TECHNIQUES FOR PREDICTION AND MONITORING OF CLINICAL EPISODES - Apparatus and methods are provided including sensing at least one parameter of a subject while the subject sleeps. The parameter is analyzed, and a condition of the subject is determined at least in part responsively to the analysis. The subject is alerted to the condition only after the subject awakes. Other applications are also described.06-06-2013
20130138002SYSTEMS AND METHODS FOR DETECTING ARRHYTHMIA FROM A PHYSIOLOGICAL SIGNAL - Arrhythmia may impact the determination of physiological information from a physiological signal. A patient monitoring system may detect the presence of arrhythmia based on changes in the physiological signal. Derived value data sets may be extracted from the physiological signal and calculations performed to generate arrhythmia features. The arrhythmia features may be used to generate an arrhythmia indicator that may indicate the presence of arrhythmia in the physiological signal.05-30-2013
20130150740SYSTEM AND METHOD OF IDENTIFYING SOURCES FOR BIOLOGICAL RHYTHMS - An example system and method of locating a source of a heart rhythm disorder are disclosed. In accordance with the method, a first pair of cardiac signals is processed to define a first coefficient associated with variability of the first pair of signals at a first region of the heart. Further, a second pair of cardiac signals is processed to define a second coefficient associated with variability of the second pair of signals at a second region of the heart. Thereafter, the first coefficient of variability is compared to the second coefficient of variability to determine a direction towards the source of the rhythm disorder.06-13-2013
20110275947CARDIOVASCULAR POWER SOURCE FOR AUTOMATIC IMPLANTABLE CARDIOVERTER DEFIBRILLATORS - Aspects according to the present invention provide a method and implant suitable for implantation inside a human body that includes a power consuming means responsive to a physiological requirement of the human body, a power source and a power storage device. The power source comprises a piezoelectric assembly that is configured to generate an electrical current when flexed by the tissue of the body and communicate the generated current to the power storage device, which is electrically coupled to the power source and to the power consuming means.11-10-2011
20130150739PREVENTION OF INCORRECT CATHETER ROTATION - A method includes providing an elongated probe having a longitudinal axis and a distal end, and capable of rotation of the distal end about the longitudinal axis in mutually opposite first and second directions. While an operator manipulates the probe within a body of a patient, the rotation that is applied to the distal end is sensed automatically. An alert is issued to the operator upon sensing that the rotation is in the second direction, but not when the sensed rotation is in the first direction.06-13-2013
20100317979Methods for Non-Invasively Monitoring Health - The time between heartbeats is measured over a series of such heartbeats. The time interval between two successive events is calculated and stored as a first array. The time difference between adjacent heartbeat intervals is also calculated from the first array and recorded as a differential array. The differential array is subjected to frequency analysis. First the differential array data is linearly interpolated to increase the number of data samples. The interpolated data is then subjected to a fast fourier transform (FFT) yielding a power spectrum. Characteristic frequency ranges are then integrated and the resulting frequency domain spectrum(s) are analyzed for dominant frequency characteristics.12-16-2010
20120283585Atrial Appendage Occlusion and Arrhythmia Treatment - Atrial appendage occlusion devices and arrhythmia treatment.11-08-2012
20130197377CARDIAC SIGNAL PROCESSING APPARATUS AND CARDIAC SIGNAL PROCESSING METHOD - A cardiac signal processing apparatus includes: a unit for acquiring, from a heartbeat sensor, cardiac signals relating to heartbeats of a subject; a low-pass filter for allowing passage of those cardiac signals having a first predetermined frequency or lower, among the cardiac signals; higher harmonic noise acquisition unit for acquiring harmonic signals of low-frequency noise by performing high frequency extrapolation on the signals output from the low-pass filter; a high-pass filter for allowing passage of those cardiac signals having a second predetermined frequency or higher, among the cardiac signals; and higher harmonic noise removal unit for removing the harmonic signals of low-frequency noise from the signals output from the high-pass filter. It is thus made possible to remove noise from the cardiac signals and to obtain desirable heartbeat detection characteristics.08-01-2013
20110313304Data Transfer - A data transfer component receives cardiac data from a heart sensor while the data transfer component is electromechanically coupled with the heart sensor sensitive to heart activity. A standard electromechanical interface of the data transfer component and a counterpart of the heart sensor are repeatedly connectable and disconnectable. The received data is stored in the data transfer component. The stored data is transferred from the data transfer component to an external device while the data transfer component is electromechanically coupled with the external device by using a coupling between the standard electromechanical interface of the data transfer component and a counterpart of the external device which are repeatedly connectable and disconnectable.12-22-2011
20120289843METHOD AND SYSTEM FOR DETERMINING INFORMATION OF EXTREMA DURING EXPANSION AND CONTRACTION CYCLES OF AN OBJECT - A medical system provides navigation assistance to a surgeon for navigating a flexible medical device through linked passages of an anatomical structure to a target area. For tracking, navigation, and other purposes, information of extrema is determined during expansion and contraction cycles of an object by receiving time sampled information from sensors distributed along a length of a flexible device so as to indicate the shape of the device over time while the device extends through a lumen of the object so as to conform to and resemble the shape of the lumen, displacements over time of a selected point at a selected insertion length of the flexible device into the lumen of the object relative to a reference point are determined, extrema time points are determined by identifying sign changes of the slope of the determined displacements over time, and extrema types are determined using extrema type characteristics.11-15-2012
20120029370METHOD AND APPARATUS TO DETERMINE THE OVERALL FITNESS OF A TEST SUBJECT - A procedure and apparatus to determine the overall fitness of a test subject. For this purpose the qualitative and temporal progression of the heart rate under constant physical stress of the subject is prescribed with at least one parameter dependent on the subject. The heart rate of the subject is measured under constant physical stress during a period of time. The parameter(s) are determined from the measured values, and the maximum heart rate and/or the initial heart rate and/or the increase characteristic of the heart rate are determined from the function and the measured values by numerical procedures. The apparatus can measure the heart rate of the subject, record a temporal progression of the heart rate under physical stress, and determines numerically from the temporal progression of the heart rate, the maximum heart rate and/or the initial heart rate without physical stress and/or the increase characteristic of the heart rate.02-02-2012
20120035487Methods for Receiving Information Relating to an Article of Footwear - In at least one embodiment, a method for providing information to a user about a fitness activity includes receiving on a portable fitness device from a shoe having an RFID tag information relating to the shoe, wherein the shoe is for wearing during the fitness activity, receiving on the portable fitness device information about the fitness activity, and displaying to the user the information relating to the shoe and the information about the fitness activity.02-09-2012
20120071772CARDIAC MONITORING SYSTEM - A method of analysing cardiac functions in a subject using a processing system is described. The method may include applying one or more electrical signals having a plurality of frequencies to the subject and detecting a response to the applied one or more signals from the subject. A characteristic frequency can then be determined from the applied and received signals, and at least one component of the impedance (e.g., reactance, phase shift) can be measured at the characteristic frequency. The impedance or a component of impedance at a characteristic frequency can be determined for a number of sequential time instances. A new characteristic frequency may be determined within a cardiac cycle or the same characteristic frequency may be used throughout the cardiac cycle during which instantaneous values of impedance are determined. These values may be used to determine an indicia of cardiac function.03-22-2012
20120071771Computer Interfaces Including Physiologically Guided Avatars - This invention provides user interfaces that more intuitively display physiological data obtained from physiological monitoring of one or more subjects. Specifically, the user interfaces of this invention create and display one or more avatars having behaviors guided by physiological monitoring data. The monitoring data is preferably obtained when the subject is performing normal tasks without substantial restraint. This invention provides a range of implementations that accommodate user having varying processing and graphics capabilities, e.g., from handheld electronic devices to ordinary PC type computers and to systems with enhanced graphics capabilities.03-22-2012
20120071770METHODS FOR PROMOTING FITNESS IN CONNECTION WITH ELECTROPHYSIOLOGY DATA - A task assessment protocol configured to utilize modified operant conditioning to incentivize physical fitness through rewards associated with units of effort including the steps of selecting the task to be performed, breaking the task to be performed into smaller units, associating the data with a reward using a reward system, gathering subject data into a database for each unit performed, and providing awards to the subject for each unit completed wherein rewards are diversified through monetary based rewards and social capital based rewards. Sensors can be worn to monitor the progress of the subject participating in an activity, competition, or challenge, and the method can provide real time feedback of data gathered to the subject.03-22-2012
20120095356Portable Fitness Monitoring Systems With Displays and Applications Thereof - Portable fitness monitoring systems with displays, and applications thereof, are disclosed. In an embodiment, a method of providing training feedback to an individual using a heart rate sensor and a display module supported by the individual during a physical activity includes the steps of determining a maximum heart rate value for the individual, defining a heart rate zone as a range of heart rate values that correspond to a range of percentages of the maximum heart rate value, associating a color with the heart rate zone, wirelessly transmitting heart rate data from the heart rate sensor to the display module during the physical activity, and displaying the color associated with the heart rate zone to the individual on the display module during the physical activity in response to the heart rate data.04-19-2012
20120095355Volume Sensing - Each sensor in one or more pairs of sensors is associated with a particular tissue, for example a first tissue location and a second tissue location respectively. Tissue at a particular tissue location may be solid, for example, muscle tissue, fat tissue, etc., or fluid, for example, blood, fluids associated with edema, etc. The area between the two tissue locations associated with a pair of sensors may comprise solid tissue, fluid tissue, an empty chamber, or combinations thereof. For each pair of sensors in the at least one pair of sensors, a first impedance measurement between the pair of sensors and associated with a first frequency is determined. For each pair of sensors in the at least one pair of sensors, a second impedance measurement between the pair of sensors and associated with a second frequency is determined. A comparison of a ratio of the first impedance measurement at a point in time to the second impedance measurement at a corresponding point in time may be made to determine a volume-related value associated with an area located between the first tissue location and the second tissue location.04-19-2012
20130211270Mouth Guard for Monitoring Body Dynamics and Methods Therefor - An electronic monitoring device (08-15-2013

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