|| List of recent Electrocardiogram-related patents
| Schema for using dynamic color and pattern backgrounds for electrocardiogram displays and associated systems and methods|
The present technology is generally directed to schemas for using dynamic color and pattern backgrounds for electrocardiogram display and associated systems and methods. In a particular embodiment, a method of displaying an electrocardiogram rhythm can include receiving an electrocardiogram signal and applying an algorithm to the signal to determine a rhythm diagnosis or recommended therapy.
| Cardiac performance monitoring system for use with mobile communications devices|
Described herein are apparatuses (e.g., devices, systems, software), and methods for monitoring the cardiac health of a patient. The apparatuses and methods may include a smartphone or hand held computing device having an accelerometer.
| Systems and methods for analyzing changes in cardiac output|
A system is provided including a cardiac output monitor configured to be operatively connected to a detection module that obtains electrocardiogram (ecg) signals from the patient. The monitor includes an axis analysis module and a cardiac output module.
| Continuous assesment of ecg signal quality|
A method and system for assessing an electrocardiogram (ecg) signal quality are disclosed. In a first aspect, the method comprises determining a kurtosis calculation of the ecg signal and determining whether the kurtosis calculation satisfies a first threshold to continuously assess the ecg signal quality.
| Method for generating a solid model of a heart and associated c-arm x-ray equipment|
A method for generating a solid model of a heart in a predetermined phase of its periodic pumping movement is proposed. During a single c-arm rotation of a c-arm x-ray unit an electrocardiogram signal with consecutive rr intervals is observed by an ekg trigger.
|Systems and methods for sleep monitoring|
A mobile computing device for performing a sleep study includes a processor, a tangible computer readable medium, and a communications module. The tangible computer readable medium includes a sleep study application embodied as code for: selectively prompting a data collection module to store data samples generated based on signals generated using at least one of an electromyography (emg) sensor connected to a user, an electroencephalography (eeg) sensor connected to the user, an electrocardiogram (ecg) sensor connected to the user, and an oxygen saturation (spo2) sensor connected to the user; receiving the data samples from the data collection module; and transmitting sleep study data including the data samples to a first data server.
|Systems and methods for sleep monitoring|
A data collection module for performing a sleep study is described. The data collection module includes a first module, a second module, and a collection control module.
|Systems and methods for sleep monitoring|
A data collection module receives signals generated using at least one of an electromyography (emg) sensor connected to a user, an electroencephalography (eeg) sensor connected to the user, an electrocardiogram (ecg) sensor connected to the user, and an oxygen saturation (spo2) sensor connected to the user. A mobile computing device is implemented independently of the data collection module and communicates with the data collection module.
|Systems and methods for sleep monitoring|
A mobile computing device for performing a sleep study includes a camera, a display, a processor, and a tangible computer readable medium. The tangible computer readable medium includes a sleep study application embodied as code for selectively displaying a request to capture an image of a user of the mobile computing device using the camera.
An electrode assembly for making electrocardiogram measurements includes a substrate and at least two electrodes. The substrate includes at least one electronic item sealed therewithin and is laminated or otherwise constructed so as to facilitate removal of the electronic item from the substrate prior to disposal.
|Cardiovascular monitoring device|
The present invention is related to a cardiovascular monitoring device including an inflatable cuff for surrounding a limb of a user, at least a first and a second electrodes, a controlling circuitry with a processor accommodated in a housing, and a display element. The controlling circuitry is configured to perform a blood pressure measurement through controlling a pressure inside the inflatable cuff, and perform an electrocardiogram measurement by using the electrodes.
|Systems and methods for viewing patient data|
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for displaying an electrocardiogram (ecg) on a computing device using actions including receiving data corresponding to the ecg, processing the data to generate a plurality of traces, displaying a plurality of trace display windows, displaying each trace of the plurality of traces in a trace window of the plurality of trace windows, receiving user input corresponding to at least one trace window of the plurality of trace windows, and modifying a display of each trace of the plurality of traces in the respective trace display windows in response to the user input.. .
|Leadless cardiac stimulation systems|
Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrodes that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system.
|Apparatus and method for detecting myocardial ischemia using analysis of high frequency components of an electrocardiogram|
Ecg apparatus comprises an ecg input for obtaining ecg signals; a high frequency analyzer configured for obtaining high frequency qrs components from a qrs complex within said ecg signals and identifying therein at least one reduced amplitude zone—raz—present within a given qrs complex; and a raz quantifier configured for obtaining a quantification of said at least one raz region within said qrs complex.. .
|Measurement apparatus, measurement method, program, storage medium, and measurement system|
There is provided a measurement apparatus including a blood pressure calculation unit configured to calculate a blood pressure value based on electrocardiography information relating to an electrocardiogram of a measurement subject and pulse wave information relating to a pulse wave of the measurement subject, and a chest contact measurement unit that includes an electrocardiography measurement unit that is brought into contact with a chest of the measurement subject to measure the electrocardiogram and a pulse wave measurement unit configured to measure the pulse wave from a pulse wave detection site of the measurement subject.. .
|Garment accessory with electrocardiogram sensors|
The brassiere may include at least one accommodation disposed on a portion of the brassiere with the at least one accommodation configured to carry at least a pair of sensors. The pair of sensors may be detachably carried by the at least one accommodation.
|Real time assessment of ablation from electrocardiogram signals|
An apparatus includes an intra-body probe and a processor. The intra-body probe includes an electrode, which is configured to contact tissue in a heart.
|Reconstruction of a surface electrocardiogram from an endocardial electrogram using non-linear filtering|
The present invention relates to an active medical device that uses non-linear filtering for reconstructing a surface electrocardiogram from an endocardial electrogram. At least one endocardial egm electrogram signal is collected from of samples collected from at least one endocardial or epicardial derivation (71′, 72′, 73′), and at least one of a reconstructed surface electrocardiogram (ecg) signal through the processing of collected egm samples by a transfer function (tf) of a neural network (60′).
|Cardiovascular monitoring device|
The present invention relates a cardiovascular monitoring device including a first housing and a second housing, a circuitry with at least a processor, distributed in the first and second housings to form a first unit and a second unit, for providing functions of blood pressure and electrocardiogram measurements, an inflatable cuff connected with the first housing for being used during blood pressure measurement, and at least two electrodes, at least one of which is a dry electrode and mounted on the second housing for contacting the user's hand. The processor can detect an activation of the functions of blood pressure and electrocardiogram measurements, and based on a detecting result, trigger the device to enter different operation modes.
|Portable system and method for monitoring of a heart and other body functions|
Portable systems and methods for obtaining an electrocardiogram reading include a portable device having first and second electrodes with differing impedances. Computer instructions instruct a processor of the portable device to output instructional information relating to placement of the electrodes, receive confirmation of the positioning, and calculating lead values using readings from the first electrode, the second electrode, or combinations thereof, such that multiple bipolar and precordial leads can be measured.
|Pulse detection apparatus, software, and methods using patient physiological signals|
A cardiac pulse in a patient is determined by evaluating physiological signals in the patient. A medical device evaluates two or more different physiological signals, such as phonocardiogram (pcg) signals, electrocardiogram (ecg) signals, patient impedance signals, piezoelectric signals, and accelerometer signals for features indicative of the presence of a cardiac pulse.
|Gated sampling of electrocardiogram signals during ablation waveform zero-crossing|
An apparatus includes detection circuitry and gating circuitry. The detection circuitry is configured to sense a radio frequency (rf) ablation signal that is applied to a heart by an intra-body probe, and to identify time intervals during which an amplitude of an ablation signal is within a predefined window.
|Real time qrs duration measurement in electrocardiogram|
Ecg data may be processed in a mobile device by receiving a stream of filtered ecg data samples comprising pqrst pattern cycles. An r point of a pqrst pattern in the filtered ecg data is determined.
|Diffusion tensor magnetic resonance imaging method|
In a diffusion tensor magnetic resonance imaging method for imaging a myocardial fiber structure, the diaphragm position of a subject is detected and a determination is made as to whether the diaphragm position of the subject falls into the acceptance region or not. If it does not, continue the diaphragm position of the examination subject is continued to be detected.
A system including a sensor interface coupled to a processor. The sensor interface is configured to receive and process an analog electrocardiogram signal of a subject and provide a digitized electrocardiogram signal sampled over a first time period and a second time period that is subsequent to the first time period.
|Ultrasound diagnosis method and apparatus using electrocardiogram|
An ultrasound diagnosis method using an electrocardiogram (ecg) including: obtaining ecg information; generating first volume data using at least one piece of sub volume data obtained in a first ecg cycle based on the ecg information; generating second volume data using at least one piece of sub volume data obtained in a second ecg cycle based on the ecg information; and displaying at least one of the first volume data and the second volume data.. .
|Generative model-driven resource-efficient monitoring in body sensor networks|
Body sensor networks (bsns) and methods for monitoring an electrocardiogram using such bsns include a base station that generates an ecg model and an output ecg signal for displaying on a display device, and a sensor platform in electrical communication with the base station. The sensor platform may be configured to receive a sensed ecg signal from one or more sensors, receive an instance of the ecg model, and produce a model ecg signal from the instance.
|Electrocardiogram reconstruction from implanted device electrograms|
A method of reconstruction of the standard 12-lead surface ekg given values of the electrical potential from an implanted medical device is described. This implanted device can be oriented in an arbitrary fashion and reconstruction technique is obtained through physical measurement of the orientation of the implanted device or correlation with a standard 12-lead ekg obtained from the patient..
|Measurement devices for bio-signals|
A measurement device is provided. A sensor senses a vessel pulse waveform of a specific region of an object to generate a vessel pulse signal in a measurement mode.
|Ecg-enabled personal emergency response systems|
The invention provides personal emergency response systems (pers) with expanded life-saving capabilities. One embodiment of the invention provides a wearable pers pendant that incorporates a cell phone transmitter or transceiver, a gps location system, an accelerometer-based fall detector that automatically triggers an alert, and an electrocardiogram (ecg) recorder permitting a remote service center or medical personnel to receive and respond to transmitted alerts and electrocardiographic data..
|Frequency analysis tool for cardiac resynchronization|
Systems and methods are provided for evaluating an expected effectiveness of cardiac resynchronization therapy. Electrocardiogram (ecg) data is received as at least one ecg lead from a set of electrodes.
|Systems and methods for detection of the superior vena cava area and the cavoatrial junction|
Described herein are systems, devices and methods to increase the accuracy of intravascular catheter placement, and to improve electrocardiogram (ecg), intravascular electrogram, and ultrasound doppler signal processing to detect the superior vena cava (svc) area. Embodiments of the invention are intended to place an intravascular catheter within the lower ⅓ of svc to the junction of the svc and the right atrium (ra)—called the cavoatrial junction (caj).
|Portable blood pressure measuring apparatus and blood pressure measuring method in portable terminal|
A method and apparatus for readily measuring a blood pressure without using a cuff includes measuring, by a portable blood pressure measuring apparatus, an electrocardiogram signal and a pulse wave signal, transmitting the measured electrocardiogram signal and pulse wave signal to a portable terminal, calculating, by the portable terminal, a pulse transit time (ptt) and a pulse wave velocity (pwv) using the transmitted electrocardiogram signal and the pulse wave signal, and calculating a blood pressure value based on the ptt and the pwv. Therefore, users may readily measure a blood pressure at any time and place and may be provided with a customized blood pressure measurement result..
|Classification of a signal in a time domain|
Methods, systems, and computer-readable and executable instructions are provided for classifying an electrocardiogram (ecg) signal. Classifying an ecg signal can include analyzing the ecg signal using a stream of pulses generated by a sampler, extracting cardiac pulse features from a timing of the stream of pulses, and classifying the ecg signal based on the extracted cardiac pulse feature..
|Cardiac activation time detection|
A method for characterizing an electrocardiogram, including receiving a first unipolar signal from a first location of a heart and a second unipolar signal from a second location of the heart. The method further includes generating a bipolar signal from the first and second unipolar signals, and analyzing the bipolar signal to delineate a time period during which the first and second locations generate a bipolar complex.
|Blood pressure measurement device|
A blood pressure measurement device includes a case, an electrocardiogram electrode, a pulse wave sensor, an estimation portion, and a display portion. The case has a peripheral surface to be held with both hands.
|Diagnostic system and method for obtaining data relating to a cardiac medical condition|
A medical diagnostic system is provided that includes an electrocardiograph (ecg) device and an ultrasound imaging device. The diagnostic system also includes a user interface having a display.
|Electrocardiogram derived respiration signal for parasympathetic and sympathetic monitoring devices|
The invention presents a method for deriving respiratory data from single lead ecg recordings for monitoring the autonomic nervous system, specifically the parasympathetic and sympathetic nervous systems independently and simultaneously. The ecg derived respiration for ans monitoring devices generally includes a method for non-invasive monitoring of the respiratory activity for the assessment of the parasympathetic and sympathetic (p&s) branches of the autonomic nervous system.
|Heuristic management of physiological data|
Systems and methods for management of physiological data, for example data obtained from monitoring an electrocardiogram signal of a patient. In one example use, digital data is obtained and episodes of arrhythmias are detected.
|Seed-beat selection method for signal-averaged electrocardiography|
An improved method for selection of a seed beat for performing signal averaging on electrocardiograms (“ecgs”). The invention improves upon the prior art by extending the search for seed beats further into the electrocardiogram time-series and by searching all three orthogonal electrocardiographic channels.
|Physiological measuring system comprising a garment in the form of a sleeve or glove and sensing apparatus incorporated in the garment|
A measuring system for measuring electrocardiogram signals comprises a diagnostic garment with ecg electrodes that may assume the form of a sleeve or glove. A disposable version of the glove can be inflated.
|Twa measuring apparatus and twa measuring method|
A twa measuring apparatus includes: a grouping section which is configured to group electrocardiogram waveforms of a subject in increments of a first beat number, to generate a plurality of first groups; a storage section which is configured to store the electrocardiogram waveforms; a testing section which is configured to test a statistical intergroup difference of measurement values of the electrocardiogram waveforms of the first groups; a heartbeat condition determining section which is configured to determine that a heartbeat condition is unstable, when a significant statistical difference exists between the first groups; and a twa measuring section which is configured to measure variation in heartbeat by using the stored electrocardiogram waveforms, when it is determined that the heartbeat condition is unstable.. .
|Blood pressure measuring device capable of measuring electrocardiogram|
A blood pressure measuring device capable of measuring electrocardiogram (ecg) is provided, in which a cuff body includes a compression sensor unit for sensing a blood pressure and a pulse rate while being worn on a user's body, a sensor unit is detachably provided at an interior and exterior of the cuff body and senses potential differences in active current generated during contraction of the user's heart and deriving an ecg value, in contact with the user's body, and a controller is electrically connected to the sensor unit and determines whether the user is normal by comparing the derived ecg value with a preset normal ecg value.. .
|Method for non-contrast enhanced magnetic resonance angiography|
A method for non-contrast enhanced magnetic resonance angiography (“mra”) that has a short scan time and is insensitive to patient motion is provided. More particularly, the method provides significant arterial conspicuity and substantial venous signal suppression.
|System and method for providing access to an information handling system|
An information handling system includes a memory and a detector circuit. The memory is configured to store a first electrocardiogram measurement.
An external defibrillator includes patient electrodes (20) for obtaining the patient's electrocardiogram (ecg) and for applying a shock to the patient. A microprocessor (24) analyses the patient's ecg using a diagnostic algorithm to detect if the patient's heart is in a shockable rhythm, and shock delivery circuitry (10) is enabled when a shockable rhythm is detected by the diagnostic algorithm.
|Cardiac muscle excitation waveform detector|
A cardiac muscle excitation waveform detector including: a waveform acquisition section that acquires, in a preset period, a waveform from an intracardiac electrocardiogram measured in middle of occurrence of atrial fibrillation; a waveform detection condition setting section that sets conditions for detecting a waveform of cardiac muscle excitation; and an excitation waveform detection section that detects a waveform of cardiac muscle excitation from the waveforms based on the conditions, wherein the waveform detection condition setting section includes a section that sets conditions based on a contour of a waveform to detect candidates for the waveform of cardiac muscle excitation, a section that sets a search period for searching for a waveform of cardiac muscle excitation; and a section that sets a preset period subsequent to detection as a detection exclusion period during which the candidate waveforms are not detected when the waveform of cardiac muscle excitation is detected.. .
|Ri measurement/notification apparatus and measurement/notification program|
An ri measurement/notification apparatus includes: a displaying section configured to display waveform data of an intracardiac electrocardiogram; a waveform data acquiring section configured to acquire waveform data in a preset waveform data acquisition time period from an intracardiac electrocardiogram during atrial fibrillation; an ri calculating section configured to calculate an ri value based on the waveform data acquired by the waveform data acquiring section; and a notifying section configured to, in a case where the ri value calculated by the ri calculating section exceeds a preset threshold, notify that the value exceeds the threshold.. .
|Electrocardiogram signal compression and de-compression system|
The invention provides an electrocardiogram signal compression and de-compression system. The invention uses the sign characteristics of the coefficients of the discrete cosine transform type iv and the characteristics of quantization of spectrum to perform the differential pulse code modulation of the spectrum for preserving the high frequency characteristics of the spectrum of the discrete fourier transform.
|Twa measuring apparatus and twa measuring method|
A twa measuring apparatus includes: an electrocardiograph controlling section which is configured to produce an electrocardiogram from electrocardiographic signals of a subject; and a twa measuring section which is configured to select at least two waveforms that contribute to a measurement of twa, from the electrocardiogram, and which is configured to measure a presence of twa by using the selected at least two waveforms.. .
|Fresh blood imaging (fbi) with independently controlled mri data acquisition parameters for diastolic and systolic mri acquisition sub-sequences|
A magnetic resonance imaging (mri) is configured to effect magnetic resonance angiography (mra) data acquisition sequences including electrocardiogram (ecg) triggered fresh blood imaging (fbi) images respectively associated with systolic and diastolic phases of ecg cycles. An operator input and display interface may be configured to provide operator options for independently controlling at least one imaging sequence parameter to have a different value for each of systolic and diastolic phase images in an fbi mri data acquisition sequence..
|Electrocardiogram analysis report, electrocardiogram analysis apparatus, and electrocardiogram analysis program|
An electrocardiogram analysis report simultaneously displays an electrocardiogram waveform collected from a subject and information about a measurement value calculated from the electrocardiogram waveform. The electrocardiogram analysis report includes a frontal plane display region configured to display a limb leads waveform included in the electrocardiogram waveform and information about a measurement value calculated from the limb leads waveform, and a horizontal plane display region configured to display a chest lead waveform included in the electrocardiogram waveform and information about a measurement value calculated from the chest lead waveform, wherein the information about the measurement value is displayed at a position spaced apart by a distance corresponding to a size of the measurement value in a direction from a predetermined center point to the relevant lead waveform in the frontal plane display region and the horizontal plane display region..
|Multifunctional auscultation sensor pad|
Multifunctional pad, including an auscultation sensor configured to detect audio signals of a subject and provide subject audio data; and an electrocardiogram (ecg) sensor configured to detect electrical activity of the subject and provide subject electrical activity data and an optional temperature sensor; wherein the multifunctional pad is configured to be affixed to a skin surface of the subject by an adhesive layer. Also provided is a monitoring system, including an auscultation sensor configured to detect audio signals of a subject and provide subject audio data; an electrocardiogram (ecg) sensor configured to detect electrical activity of the subject and provide subject electrical activity data; one or more monitoring devices; and a connection interface configured to operatively couple the multifunctional pad to the one or more monitoring devices..
|Small wireless portable ekg system|
A wallet-card sized, flexible, largely self-contained electrocardiogram (ekg) device able to wirelessly communicate ekg data to a smart phone, or similarly functional device, hosting an application that can receive and display the ekg data, as well as do some analysis to identify particular heart conditions and display that information, or data product. The ekg device processes data from its integral electrodes into ekg data, can store up to an hour of data, and can wirelessly transmit the ekg data from storage or from real-time processing.
|Apparatus and method for generating atrial fibrillation prediction model, and apparatus and method for predicting atrial fibrillation|
An apparatus and a method to generate an atrial fibrillation prediction model, and an apparatus and a method to predict atrial fibrillation are provided. An atrial fibrillation (af) prediction model generating apparatus includes a feature extractor configured to extract t-wave features in a predetermined time period from electrocardiogram data and generate a t-wave feature profile based on the extracted features, and a prediction model generator configured to classify the generated t-wave feature profile and generate an af prediction model using the classified feature profile..
|Atrial fibrillation classification using power measurement|
An atrial fibrillation classification system collects celectrocardiogram signals and converts them to a frequency, time, or phase domain representation for analysis. An evaluation stage extracts energy density profile over a range of frequencies, time intervals, or phases, which is then summed and normalized to form dispersion metrics.
|Motion and noise artifact detection for ecg data|
Technologies are provided herein for real-time detection of motion and noise (mn) artifacts in electrocardiogram signals recorded by electrocardiography devices. Specifically, the present disclosure provides techniques for increasing the accuracy of identifying paroxysmal atrial fibrillation (af) rhythms, which are often measured via such devices.
|Calibration method of electrocardiogram signals and the application program for the same|
A calibration method of electrocardiogram signals and the application program for the same. The method comprises steps of receiving an uncalibrated/unidentified electrocardiogram signal of a user, calculating the ratio of the distance length of an uncalibrated/unidentified electrocardiogram signal and the distance length of an electrocardiogram template, then generating a trigonometric value which corresponds with a trigonometric projection degree according to the ratio.
|System and method for non-invasive treatment of cardiac arrhythmias|
A method for non-invasive treatment of cardiac arrhythmias is provided. The method includes acquiring body surface electrical signals at locations on a body surface of a living being from electrodes placed on locations of the body surface, reconstructing three-dimensional heart and torso anatomical models of the living being from an imaging scan, and calculating an electrical activity a throughout three-dimensional volume of the heart by electrocardiogram inverse problem solving based at least in part on the acquired body surface electrical signals and the reconstructed three-dimensional heart and torso anatomical models.
|Systems and methods for filtering ecg artifacts|
Systems and methods of processing raw electrocardiogram (ecg) waveform data of a patient into estimated real-time ecg waveform data. The method includes sensing at least one physical non-cardiac influence on the raw ecg waveform data, constructing a time domain computer model of the at least one physical, non-cardiac influence on the raw ecg waveform data, and adaptively filtering the raw ecg waveform data in the time domain using the constructed time domain computer model of the at least one physical non-cardiac influence on the raw ecg waveform data to form the estimated real-time ecg waveform data.
An electrocardiogram (ecg) analyzing system for analyzing electrocardiogram (ecg) signals, the system including: a computing device including: a transformer for transforming an ecg signal into a time-frequency representation over a plurality of frequencies over a period of time; a calculator for calculating a magnitude of the time-frequency representation; an analyzer for analyzing a degree of clustering of a plurality of low-magnitude values in the time-frequency representation; and a diagnosing system for diagnosing whether ventricular fibrillation is present based on the degree of clustering.. .
|Method and system to measure ecg and respiration|
A method for monitoring the respiration rate of a patient includes attaching a plurality of electrocardiogram (ecg) electrodes and a pressure sensor to a patient, producing a first respiration signal based on variations detected in signals provided by the ecg electrodes attached to the patient, and producing a second respiration signal based on pressure variations detected in the pressure sensor secured to the patient. The method also includes selecting at least one of the first respiration signal and the second respiration signal based on respective signal qualities and producing a respiration rate from the selected signal.
|Method and apparatus for measuring multiple ecg leads using a device with embedded leads|
An apparatus and a method, the apparatus including a housing, an electrocardiogram (ecg) measuring circuit contained in the housing, and three electrodes embedded in the housing, electrically connected to the ecg measuring circuit, and in spaced apart configuration from each other.. .
|R-peak detection apparatus and control method thereof|
A method of controlling of an r-peak detection apparatus, which detects an r-peak from an electrocardiogram (ecg) signal, includes receiving the ecg signal, reading out a pre-stored ecg template, comparing the eg signal with the pre-stored ecg template to determine a similarity between the ecg signal and the pre-stored ecg template and determining whether the similarity is equal to or greater than a threshold value, and determining a corresponding interval as the r-peak when the similarity is equal to or greater than the threshold value.. .
|Mobile wellness device|
The invention is directed to a system for acquiring electrical footprint of the heart, electrocardiogram (ekg or ecg) and heart rate variability monitoring, incorporated into a mobile device accessory. The ecg signal is conveniently acquired and transmitted to a server via the mobile device, offering accurate heart rate variability biofeedback measurement which is portable and comfortable during normal daily life.
|Measurements of fatigue level using heart rate variability data|
Methods, apparatuses, and systems for quantifying fatigue of a subject are disclosed. The methods may include measuring an electrocardiogram (ecg) signal from the subject.
|Determination for effective defibrillation|
A method for managing care of a person receiving emergency cardiac is disclosed and involves monitoring, with an external defibrillator, multiple parameters of the person receiving emergency cardiac assistance; determining from at least one of the parameters, an indication of trans-thoracic impedance of the person receiving emergency cardiac care; determining, from at least one of the parameters corresponding to an electrocardiogram of the person receiving emergency cardiac assistance, an initial indication of likely shock effectiveness; determining, as a function of at least the indication of trans-thoracic impedance and the initial indication of likely shock effectiveness, an indication of whether a shock provided to the person receiving emergency medical assistance will be effective; and affecting control of the defibrillator by a caregiver as a result of determining the indication of whether a shock will be effective.. .
|Method and apparatus for identifying cardiac risk|
A cardiac-based metric is computed based upon characteristics of a subject's cardiac function. In accordance with one or more embodiments, the end of a mechanical systole is identified for each of a plurality of cardiac cycles of a subject, based upon an acoustical vibration associated with closure of an aortic valve during the cardiac cycle.
|Method of locating the tip of a central venous catheter|
Methods of locating a tip of a central venous catheter (“cvc”) relative to the superior vena cava, sino-atrial node, right atrium, and/or right ventricle using electrocardiogram data. The cvc includes at least one electrode.
|System and method for the analysis of electrocardiogram signals|
A microprocessor configured to receive and process digitized signals derived from an analogue ecg signal is provided. An example microprocessor comprises a beat detection unit configured to receive the in-phase and quadrature phase band power signals, calculate a band power value and an adaptive threshold value, and compare said band power value with said adaptive threshold value to detect a qrs complex of the ecg signal indicative of a detected valid beat; and an r peak detection unit configured to receive the digital ecg signal and information about the detected valid beat, select a portion of the received ecg signal as a first time window around the detected valid beat; determine the location of a first r peak position; and perform a time domain search in a second time window around said first r peak position in order to refine the location of an r peak position..
|Detection of drastic blood pressure changes|
A cardiac-activity based prediction of a rapid drop in a patient's blood pressure during extracorporeal blood treatment is disclosed. A proposed alarm apparatus includes a primary beat morphology analysis unit bank of secondary analysis units and an alarm generating unit.
|Use of dronedarone or a pharmaceutically acceptable salt thereof for the preparation of a drug for the prevention of atrial fibrillation|
B) performing electrocardiograms serially.. .
|Ventricular fibrillation detection|
Systems and techniques are disclosed for determining the onset and offset of a ventricular fibrillation event and for distinguishing ventricular fibrillation from noise. In some examples, an electrocardiogram (ecg) signal is obtained; a transform is applied to the ecg signal to obtain an analytical pair, the analytical pair including the ecg signal and the transformed ecg signal; a speed-amplitude is determined from the analytical pair; and an onset of a ventricular fibrillation event is identified based at least one of a value of a cost function of the speed-amplitude over a window and a quantity of occurrences the speed-amplitude crosses a threshold over the window..
|Biometric front-end recorder system|
A stethoscope front-end recorder device (also referred to as sleeve) for the chest piece of a stethoscope, which is easily installed and removed. The sleeve covers the circumference of the chest piece of a stethoscope.