19 results about "Ecg waveforms" patented technology

Physiological monitoring can be provided through a lightweight wearable monitor that includes two components, a flexible extended wear electrode patch and a reusable monitor recorder that removably snaps into a receptacle on the electrode patch. The wearable monitor sits centrally on the patient's chest along the sternum oriented top-to-bottom. The placement of the wearable monitor in a location at the sternal midline, with its unique narrow “hourglass”-like shape, significantly improves the ability of the wearable monitor to cutaneously sense cardiac electrical potential signals, particularly the P-wave and the QRS interval signals indicating ventricular activity in the ECG waveforms. In particular, the ECG electrodes on the electrode patch are tailored to be positioned axially along the midline of the sternum for capturing action potential propagation in an orientation that corresponds to the aVF lead used in a conventional 12-lead ECG that is used to sense positive or upright P-waves.

Embodiments of the present disclosure utilize DNNs for ECG interpretation, where original ECG waveforms are directly ingested by the DNNs using paired interpretation labels for training, without the need for explicatory feature extraction or rule-based criteria.

This invention discloses a method for phase synchronization of multimodal data from heart sounds, electrocardiograms (ECG), and echocardiograms, belonging to the field of medical image processing technology. The method includes the following steps: A1. Acquiring original echocardiogram video images and independently recorded heart sound audio data; A2. Preprocessing the acquired data and automatically constructing samples; A3. Constructing a dual-path neural network architecture and extracting ECG waveforms to obtain a digitized ECG signal sequence; A4. Identifying periodic feature points of heart sounds and ECGs based on the digitized ECG signals; A5. Aligning asynchronous data based on linear phase resampling. This invention uses a linear interpolation algorithm to forcibly map video frames, electrical signals, and heart sound signals at different sampling rates to a unified phase coordinate system, ultimately achieving absolute synchronization of the three in terms of the physiological logic of cardiac pulsation, eliminating the influence of individual heart rate differences on data alignment.

A defibrillator using an ECG analyzer and a shock impedance advisor for improving defibrillation of a patient's heart by a defibrillation discharge circuit associated with the defibrillator. In operation, the ECG analyzer derives a shock delivery decision from detecting a shockable rhythm in the patient's ECG waveform in response to a shock delivery decision, and the shock impedance advisor measures the non-shock impedance of the defibrillation discharge circuit, estimates a pre-shock impedance of the defibrillation discharge circuit from the measured non-shock impedance of the defibrillation discharge circuit, and communicates a lower shock impedance advisory to a responder operating the defibrillator when the pre-shock impedance of the defibrillation discharge circuit exceeds a shock impedance threshold.

Embodiments of the present disclosure utilize a DNN for ECG interpretation, where the DNN uses pairs of interpretation markers to directly ingest an original ECG waveform for training, without the need for illustrative feature extraction or rule-based criteria.

The present application discloses a method for processing an electrocardiogram waveform, an electrocardiograph, and a readable storage medium, the method comprising: the electrocardiograph processes the electrocardiogram waveform to obtain an average template waveform corresponding to the electrocardiogram waveform; the average template waveform is displayed on a display interface; in response to a preset operation performed by a user on the display interface, the average template waveform displayed on the display interface is scaled accordingly. In the above manner, the present application can facilitate users to view the average template waveform, and the operation is simple.

A system and method for guiding medical device placement. The system includes a console, a portable acquisition unit for receiving intracavitary and surface electrocardiogram (ECG) signals, and connection hardware, including a sterile ECG adapter and cable for fluid-filled catheters or a sterile clip cable for guidewires. Processors display real-time ECG waveforms and, in response to user input, capture static snapshots at different insertion depths. These snapshots are displayed chronologically on a graphical user interface, forming a visual trajectory of the device. The system determines the device's location by detecting ECG features from each snapshot and comparing them to predetermined boundaries. A location indication is displayed for each snapshot, providing objective guidance for placement and confirmation.

A catheter placement system includes a catheter assembly, an external ultrasound probe, a tip location sensor, and a console. The catheter assembly includes a catheter, a magnetic component producing a magnetic field, and an electrocardiogram (ECG) sensor designed to measure an intravascular ECG signal. The external ultrasound probe includes user input controls. The tip location sensor is configured to detect the magnetic field of the magnetic component when the catheter is disposed in the patient, the magnetic field providing magnetic field information for locating the magnetic component relative to the tip location sensor, and to receive the intravascular ECG signal from the ECG sensor. The console is coupled to the tip location sensor and includes a processor and a display. The display is configured to show an image from the external ultrasound probe, a graphical representation of the magnetic component, and successive ECG waveforms detected by the ECG sensor.

A system including a wearable ECG monitor configured to record a wearable ECG waveform an analyzer configured to run on a computer and to derive an arrhythmia template waveform or a composite arrhythmia waveform from the wearable ECG waveform and to provide the arrhythmia template waveform or the composite arrhythmia waveform to a pace mapping system, an EP lab ECG configured to provide a paced ECG waveform, and the pace mapping system configured to compare the paced ECG waveform with the provided arrhythmia template waveform or composite arrhythmia waveform to determine an arrhythmia focus

A patient monitoring device (20) employing an ECG monitor (24) and a controller (26). In operation, the ECG monitor (24) monitors a corrupted ECG waveform (30), and the controller (26) classifies the corrupted ECG waveform (30) as one of a non-shockable rhythm or a potentially shockable rhythm. The corrupted ECG waveform (30) is classified by the controller (26) as the non-shockable rhythm responsive to a detection by the controller (26) of a presence of an asystole rhythm within the corrupted ECG waveform (30). Conversely, the corrupted ECG waveform (30) is classified by the controller (26) as the potentially shockable rhythm responsive to a detection by the controller (26) of an absence of the asystole rhythm within the corrupted ECG waveform (30) or an indetermination by the controller (26) as to the presence of the asystole rhythm within the corrupted ECG waveform (30).

A defibrillator employs an ECG monitor and a defibrillation controller for supporting a viewer to make a resuscitation termination (TOR) decision during cardiopulmonary resuscitation (CPR) of a patient's heart by the viewer. In an operation during CPR of a patient's heart by a viewer, an ECG monitor monitors an ECG waveform of the patient's heart, and a defibrillation controller monitors the CPR and TOR parameters of the ECG waveform, derives a TOR suggestion from the monitoring of the TOR parameters, and communicates the TOR suggestion to the viewer based on at least one of a request by the viewer or an occurrence of a TOR event.

1. The name of the product of this design: Holter recorder sensor (12 leads). 2. Purpose of the product with this appearance design: This device can work in conjunction with the host of a multi-lead dynamic electrocardiograph recorder to accurately collect bioelectric signals based on the electrocardiogram measurement principle. Whether in the professional environment of a medical institution or in the convenient scenario of home use, it can assist the host to effectively monitor and record the nine-lead ECG waveforms of the human body. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The invention provides a sensor for measuring both impedance and ECG waveforms that is configured to be worn around a patient's neck. The sensor features 1) an ECG system that includes an analog ECG circuit, in electrical contact with at least two ECG electrodes, that generates an analog ECG waveform; and 2) an impedance system that includes an analog impedance circuit, in electrical contact with at least two (and typically four) impedance electrodes, that generates an analog impedance waveform. Also included in the neck-worn system are a digital processing system featuring a microprocessor, and an analog-to-digital converter. During a measurement, the digital processing system receives and processes the analog ECG and impedance waveforms to measure physiological information from the patient. Finally, a cable that drapes around the patient's neck connects the ECG system, impedance system, and digital processing system.

The defibrillator uses an ECG monitor and a defibrillation controller to support a responder in determining termination of resuscitation (TOR) during cardiopulmonary resuscitation (CPR) administered by the responder to the patient's heart. In operation during administration of CPR by the responder to the patient's heart, the ECG monitor monitors ECG waveforms of the patient's heart, and the defibrillation controller monitors TOR parameters of the CPR and ECG waveforms, derives a TOR advisory from the monitoring of the TOR parameters, and communicates the TOR advisory to the responder based on at least one of a request by the responder or the occurrence of a TOR event.

The invention provides a sensor for measuring both impedance and ECG waveforms that is configured to be worn around a patient's neck. The sensor features 1) an ECG system that includes an analog ECG circuit, in electrical contact with at least two ECG electrodes, that generates an analog ECG waveform; and 2) an impedance system that includes an analog impedance circuit, in electrical contact with at least two (and typically four) impedance electrodes, that generates an analog impedance waveform. Also included in the neck-worn system are a digital processing system featuring a microprocessor, and an analog-to-digital converter. During a measurement, the digital processing system receives and processes the analog ECG and impedance waveforms to measure physiological information from the patient. Finally, a cable that drapes around the patient's neck connects the ECG system, impedance system, and digital processing system.

The invention relates to the technical field of dental treatment, in particular to a heart rate detection method, a heart rate detection system and equipment applied to a dental chair. Comprising the steps that frequency band waveform analysis is conducted on ECG waveforms collected by an ECG device in real time, normal heart rate frequency bands are collected, Fourier transform is adopted, signals of a data set of the normal heart rate frequency bands are converted into frequency domain signals from time domain signals, and the frequency domain signals serve as a reference frequency domain data set; determining an abnormal heart rate waveform frequency band; the collected normal heart rate frequency bands and abnormal heart rate waveform frequency bands are recognized and analyzed based on a pattern recognition algorithm, heart rate recognizable frequency bands and heart rate unrecognizable frequency bands are judged, and the heart rate unrecognizable frequency bands are screened to serve as abnormal heart rate analysis frequency bands; and analyzing the abnormal heart rate analysis frequency band based on a heart rate abnormity processing method to obtain an abnormal heart rate value of the abnormal heart rate analysis frequency band. According to the device, the heart rate can be effectively detected even if the detection module is interfered.

The present application generally relates to systems and methods for synchronizing deployment of various devices into cardiac tissue with ECG waveforms. Systems and methods may include using pressurized gas to actuate deployment and anchoring of a device (e.g., an implant configured to reshape a heart ventricle) into heart tissue. Deployment of the device may occur during a portion of the cardiac cycle where cardiac muscle tissue may be at its thickest (e.g., at the end of systole).

Disclosed is an ECG sensor having a packaging label form factor. The ECG sensor may comprise a set of electrodes configured to sense heart-related electrical activity when in contact with skin of a user and produce electrocardiogram (ECG) waveforms representing the sensed heart-related electrical activity. The ECG sensor may further comprise a processor configured to: identify, using a machine learning model, the user based on the ECG waveforms, convert the ECG waveforms to a modulated signal that carries the ECG waveforms representing the sensed heart-related electrical activity, and transmit the modulated signal wirelessly to a computing device using a transmitter. The ECG sensor may also comprise a housing having a first layer and a second layer, wherein the set of electrodes, the processor, and the transmitter are all disposed between the first layer and the second layer of the housing, and wherein the housing has a packaging-label form factor.

The invention relates to an electrocardio waveform drawing method and device based on a GPU shader and a medium, and the method comprises the steps: for each line segment group in an electrocardio data set, according to the width d of lines in an electrocardiogram needing to be drawn, extending each piece of data contained in the line segment group by a distance of d / 2 along two directions of a normal vector of a line segment formed by two pieces of data in the line segment group to obtain four vertexes of a rectangle of which the length is the length of the line segment and the width is d; for each inflection point, according to the coordinates of the inflection point, calculating the coordinates of n segmentation points after a circle which takes the inflection point as the circle center and takes d / 2 as the radius is uniformly split into n segments; based on the inflection points and the segmentation points, n triangles are constructed, and three vertexes in each triangle comprise the inflection points and two adjacent segmentation points; and coloring the rectangles and the triangles through a GPU shader. According to the invention, the problem of sharp puncture existing in the traditional electrocardio waveform is solved, and the diagnosis accuracy of a doctor is improved.