23 results about "Phonocardiogram" patented technology

The invention discloses an abnormal data detection method, device and system based on electrocardio and heart sound, and the method comprises the steps: synchronously collecting an electrocardio signal and a heart sound signal, and carrying out the first preprocessing and the second preprocessing, thereby obtaining electrocardio data and heart sound data; inputting the electrocardio data and the heart sound data into a double-flow convolutional network for feature extraction to obtain an electrocardio feature sequence and a heart sound feature sequence; inputting the electrocardio feature sequence and the heart sound feature sequence into a cross-modal fusion decision model to obtain pooling fusion enhanced features, thereby effectively performing time sequence alignment, fusion and enhancement on the electrocardio feature sequence and the heart sound feature sequence; the score of the pooling fusion enhanced feature is obtained by using a nonlinear scoring formula, whether abnormal data exist in the electrocardiosignal and the heart sound signal of the detected person or not is determined through the score of the pooling fusion enhanced feature, and the method has important significance on early warning, curative effect evaluation and the like of patients with cardiovascular and cerebrovascular diseases.

The invention discloses a breathing and electrocardio information integrated recording and displaying method and system based on overall spatial-temporal characteristics. The method comprises the steps that a high-precision sensor synchronously collects electrocardiogram, phonocardiogram, arterial pulse waveform, venous pulse waveform and breathing wave signals and preprocesses the signals based on different signal characteristics; carrying out multi-cycle electrocardiogram merging by utilizing an R-wave detection algorithm and introducing a variational mode decomposition algorithm; carrying out feature extraction from the multi-mode signal, and carrying out respiratory wave and electrocardiowave conjoint analysis; carrying out feature fusion through a spatial-temporal feature fusion network of a multi-branch attention mechanism, and generating and displaying a combined electrocardiograph distribution diagram; carrying out anomaly detection through an anomaly detection model based on a Transform architecture; synchronously displaying in an integrated display interface; according to the system and the method, efficient acquisition, analysis and visualization of the multi-modal physiological signals are realized by integrating synchronous acquisition, intelligent interpretation and integrated display of various physiological signals, and the efficiency and the accuracy of clinical diagnosis are favorably improved.

The invention discloses a multi-person electrocardiogram reconstruction method based on a millimeter-wave radar, which is applied to the technical field of millimeter-wave radar detection, and aims at solving the problem that in the prior art, only simple heart rate estimation of a plurality of targets is considered, but the estimation of heartbeat signals is not involved. The method comprises the following steps: firstly, converting a radar phonocardiogram into a frequency domain signal; extracting a top-k frequency component and converting the top-k frequency component into a time domain signal; then, multi-head cross attention and multi-head self-attention mechanisms are used for carrying out self-correlation reconstruction on the signals; the obtained output is then input into a frequency Gaussian weighting module, and then a reconstructed ECG signal is output. Compared with traditional heartbeat information analysis of multi-target signals, more accurate electrocardiogram reconstruction information can be provided.

Disclosed is a system for monitoring a heart condition in a companion animal. The system can collect electrocardiogram data of a companion animal through a capacitive electrocardiogram sensor without prior preparation such as hair removal, collect phonocardiogram data and ballistocardiogram data through a phonocardiogram sensor and a ballistocardiogram sensor, and generate cardiogram-integrated data available for diagnosing a heart condition in the companion animal by merging the electrocardiogram data, the phonocardiogram data, and the ballistocardiogram data.

A body-worn patch sensor for simultaneously measuring a blood pressure (BP), pulse oximetry (SpO2), and other vital signs and hemodynamic parameters from a patient featuring a sensing portion having a flexible housing that is worn entirely on the patient's chest and encloses a battery, wireless transmitter, and all the sensor's sensing and electronic components. It measures electrocardiogram (ECG), impedance plethysmogram (IPG), photoplethysmogram (PPG), and phonocardiogram (PCG) waveforms, and collectively processes these to determine the vital signs and hemodynamic parameters. The sensor that measures PPG waveforms also includes a heating element to increase perfusion of tissue on the chest.

A wireless wearable sensor device, system, method, and non-transitory computer readable medium for screening for structural heart disease based on electrocardiogram, phonocardiogram, and / or accelerometer signals on a patient's skin surface.

Systems and methods for identifying third heart sounds (S3) and fourth heart sounds (S4) within phonocardiogram (PCG) and electrocardiogram (ECG) data are disclosed herein. An example computer-implemented method includes collecting (i) PCG data and (ii) ECG data of a user via a digital stethoscope and applying a cardiac acoustic algorithm to the PCG data and the ECG data to identify an S3 or an S4. The example method further includes extracting a respective portion of the PCG data and the ECG data that includes the S3 or the S4, generating a graphical user interface (GUI) that includes a link to an interactive visual representation of (i) the respective portion of the PCG data and (ii) the respective portion of the ECG data, and causing the GUI to be displayed for viewing by a second user.

A digital stethoscope with additional sensors for measuring orientation, positional changes, infrared radiation, strain, and electrophysiology is disclosed. Enhancements to Al driven system(s) and methods as a result of the additional sensors are disclosed. Methods and device implementations enabled by this feature set include providing instruction to a user for improved use of the digital stethoscope in obtaining sound from the body of a patient, automatic exam segmentation, automatic subject orientation capture, and motion capture not possible with a traditional stethoscope transducer alone. A further disclosure of a method for managing heart failure is described.

The application discloses a high-sensitivity electrocardio and phonocardiogram integrated sensor and a mounting method thereof, and belongs to the technical field of biological medical sensors. The high-sensitivity electrocardio and phonocardiogram integrated sensor comprises a shell, an integrated circuit board arranged on the inner side of the shell, a top cover arranged on the shell, a auscultation diaphragm arranged between the top cover and the shell, an installation plate arranged on the inner side of the shell, a first support seat arranged on the side of the installation plate close to the auscultation diaphragm, a first mechanical layer arranged on the first support seat, and a first mass seat arranged on the other end of the first mechanical layer. The phonocardiogram sensor part of the application adopts a high-sensitivity design, the first mechanical layer is equally spaced and divided into three equal parts, and a cavity structure is formed between the first mechanical layer and a first piezoelectric sheet. The design increases the normal strain of the first piezoelectric sheet in the working process of the sensor, thereby improving the sensitivity of the phonocardiogram sensor.

The invention relates to the technical field of intelligent wearing, in particular to an intelligent ring which comprises an outer shell and an inner shell, the outer shell and the inner shell are connected and define an annular containing cavity, a circuit module and a functional module are arranged in the annular containing cavity, the circuit module comprises a battery and a circuit board, and the battery and the circuit board are arranged in the annular containing cavity. The plurality of sensors are arranged along the circumferential direction of the intelligent ring; the functional module comprises a photoelectric volume pulse wave acquisition module and a phonocardiogram acquisition module, and the photoelectric volume pulse wave acquisition module and the phonocardiogram acquisition module are arranged on the circuit board and are arranged corresponding to the battery in the diameter direction of the intelligent ring; the intelligent ring has a wearing state, in the wearing state, the photoelectric volume pulse wave acquisition module is used for acquiring a pulse wave signal, and the phonocardiogram acquisition module is used for acquiring a heart sound signal. The invention mainly aims to provide an intelligent ring, and aims to obtain physiological feature information of a user.

The application discloses a pulmonary arterial hypertension recognition device and method based on multiple ECG and PCG signals, and relates to the technical field of biomedicine. The device comprises the following steps: limiting the landing points of the aortic valve closing candidate peak and the pulmonary valve closing candidate peak in the main peak anchor point time boundary and the ECG segment key turning point time interval of the double-anchored split segment set, performing adjacent beat backtracking replacement and multi-channel consistent voting reservation on the candidate peak of the cross-beat jump, and generating a physiological consistency split segment set; according to the physiological consistency split segment set, gathering the split sequence of the multiple PCGs, and performing beat-level splicing and window-in-consistency closure on the right heart load related morphological items of the multiple ECGs, and generating a pulmonary arterial hypertension recognition diagnosis set. The application realizes high-precision synchronization of multiple ECG and PCG signals, eliminates device differences and noise interference, guarantees the reliability of feature extraction, and improves the stability of pulmonary arterial hypertension recognition.

The application relates to the technical field of healthcare informatics, in particular to a seismocardiogram analysis system and method based on accelerometer data, wherein the system comprises a heart vibration detection unit, a motion artifact detection unit and a data processing unit. The heart vibration detection unit is arranged to collect a sternum vibration signal generated by heart activity. The motion artifact detection unit is arranged to detect a sternum posture signal generated by thoracic activity during breathing. In the application, the data processing unit acquires signals of the heart vibration detection unit and the motion artifact detection unit, encodes the signals into vector group data, performs digital filtering on the vector group data, preliminarily performs band-pass filtering to retain only low-frequency signals, and performs modal decomposition on the sternum vibration signal based on a VMD algorithm to decompose the SCG signal in the sternum posture signal based on parameter characteristics of the sternum posture signal as a constraint condition.

A wearable cardiac ultrasound patch, a cardiovascular disease identification system, and method thereof integrate a silicon photonic integrated circuit layer with a microelectromechanical integrated circuit layer into an optical fiber micro-sensor, which is encapsulated with a computing chip as a single unit. This allows the examinee to perform cardiac ultrasound detection and processing in a wearable and convenient manner, free from time or geographic constraints. The silicon photonic elements in the silicon photonic integrated circuit layer and the piezoelectric elements in the microelectromechanical integrated circuit layer are stacked and arranged in a two-dimensional array, enabling the wearable cardiac ultrasound patch to scan at more angles. Furthermore, the cardiovascular disease identification system of the present invention can process the examinee's cardiac ultrasound signals, electrocardiography (ECG) signals, and phonocardiography (PCG) signals. These three data types cross-validate one another, improving the detection rate of comprehensive cardiovascular diseases and reducing the time and misdiagnosis rate for physicians diagnosing cardiovascular diseases.

A sensing apparatus (102) for cardiac measurements and diagnostics is provided. The sensing apparatus comprises a phonocardiography (PCG) sensor (108) configured to sense heart sounds, and a mechanocardiography (MCG) sensor (109) configured to sense heart-induced motion, wherein the MCG sensor comprising a 3-axis gyroscope and a 3-axis accelerometer. The PCG sensor and the MCG sensor are arranged within a common sensor housing configured to be placed onto a patient's thoracic wall. A cardiac diagnostic system (100) is also provided, comprising a PCG sensor, MCG sensor, at least one electrocardiography, ECG, electrode, and a processor (104), wherein the processor is configured to capture signals from the PCG sensor, the MCG sensor, and the at least one ECG electrode synchronously. Computer-implemented methods for predicting cardiac anomalies and heart failure based on synchronous PCG, MCG, and ECG signals are also provided.

A phonocardiogram (PCG) sensing device is disclosed that comprises a body audio sensing device including a body audio sensing transducer arranged to sense animal body audio when the body audio sensing device is disposed adjacent an animal body in a body audio sensing position and an acoustic path for body audio is defined between the animal body and the body audio sensing transducer. The PCG sensing device also includes an ambient audio sensing device including an ambient audio sensing transducer arranged to sense ambient audio present in an environment adjacent the phonocardiogram sensing device when the body audio sensing device is disposed in the body audio sensing position. The body audio sensing device produces a body audio signal indicative of animal body audio, the ambient audio sensing device produces an ambient audio signal indicative of the ambient audio, and the ambient audio signal is used to increase the signal to noise ratio of the body audio signal.

The application discloses a flexible electrode for integrated sensing of electrocardio and heart sound. The dry electrode is used for noninvasive collection of human body surface Laplace electrocardio signals. The dry electrode and a collection system thereof are composed of three parts. The first part is a multilayer bioelectric dry electrode based on silk screen printing, which is composed of a. an electrocardio signal collection electrode (right limb RA), b. an electrocardio signal collection electrode (left limb LA) and c. an electrocardio signal collection electrode (right leg RL). The second part is d. a front-end signal conditioning circuit, which is composed of a filter circuit and a power follower. The filter circuit is used for filtering high-frequency noise such as electromyographic noise and part of low-frequency baseline drift signals. The power follower is used for inhibiting signal attenuation, providing low output impedance, enhancing signal anti-interference ability, improving system signal-to-noise ratio and ensuring signal integrity. The third part is e. a system processing and transmission circuit, which is composed of a filter, a main control chip and a Bluetooth module. The main control chip part completes processing of the Laplace signal, and obtains a Laplace electrocardiogram.

This invention relates to the field of smart wearable technology, and particularly to a smart ring. The smart ring includes an outer shell and an inner shell, which are connected and enclose a ring-shaped cavity. The ring-shaped cavity contains a circuit module and a functional module. The circuit module includes a battery and a circuit board, which are disposed within the ring-shaped cavity and arranged along the circumferential direction of the smart ring. The functional module includes a photoplethysmography (PPG) acquisition module and a phonocardiogram (PCO) acquisition module, both mounted on the circuit board and corresponding to the battery along the diameter of the smart ring. The smart ring has a wearing state. In this state, the PPG acquisition module acquires pulse wave signals, and the PCO acquisition module acquires heart sound signals. The main objective of this invention is to provide a smart ring designed to acquire the user's physiological characteristic information.

A phonocardiogram apparatus and related method for diagnosis of cardiac pathologies through advanced sound recording and analysis. This apparatus utilizes a grid of microphones embedded in a fabric and positioned over the patient's chest and back to capture heart, lung, and neck sounds from multiple locations. An artificial intelligence (AI) based algorithm is employed to determine the most relevant microphones based on the patient's unique anatomy, thereby optimizing sound collection for diagnostic purposes. The collected sounds undergo a series of pre-processing and machine learning analyses to diagnose cardiac abnormalities such as aortic stenosis, murmurs, and extra systoles, create cardiac auscultatory signatures and allow longitudinal monitoring by clinicians or patients themselves for comparison over time.

The application provides a flexible wearable hybrid electronic device integrated with electrocardio and phonocardiogram collection, comprising a flexible substrate, a flexible stretchable circuit, a conductive gel, a microphone device and a phonocardiogram pickup cavity; the flexible stretchable circuit is arranged on the flexible substrate; a gold electrode is arranged on the flexible stretchable circuit; the conductive gel is adhered to one side of the gold electrode and adhered to the other side of the human skin; the microphone device is arranged on the flexible stretchable circuit; the pickup hole of the microphone device is sleeved with the phonocardiogram pickup cavity; and the phonocardiogram pickup cavity is constructed by an elastic material to tightly adhere to the skin of the human phonocardiogram auscultation part.

An electrocardiogram (ECG)-phonocardiogram (PCG) synchronous acquisition device and an ECG-PCG detection system are provided. The ECG-PCG synchronous acquisition device includes a conductive adsorption unit configured to be absorbed to human skin; and an acquisition unit connected to the conductive adsorption unit. The acquisition unit is configured to acquire ECG signals directly, and simultaneously acquire PCG signals through the conductive adsorption unit. The ECG-PCG synchronous acquisition device and the ECG-PCG detection system are used to solve the technical problem of low efficiency in synchronously acquiring electrocardiogram signals and heart sound signals in the related art.

A system and method are described that provides non-invasive detection and quantification of systolic and diastolic heart failure, including subclinical, asymptomatic systolic and diastolic heart failure. The invention is a novel method for processing physiological data and deriving clinical implications and prognosis. The invention is based on extracting data from simultaneous data streams of electrocardiogram, phonocardiogram, and left ventricular pressure to be graphically displayed in a Wiggers diagram that depicts the entire cardiac cycle.

The present application relates to the technical field of medical devices, and provides a heart sound and electrocardiogram synchronous collector and a heart sound and electrocardiogram detection system. The present application provides a heart sound and electrocardiogram synchronous collector, which comprises a conductive adsorption unit and a collection unit. The conductive adsorption unit can be adsorbed on the human skin. The collection unit is connected to the conductive adsorption unit, can collect a heart sound signal, and can collect an electrocardiogram signal through the conductive adsorption unit. The present application provides a heart sound and electrocardiogram synchronous collector and a heart sound and electrocardiogram detection system, which can solve the technical problem of low efficiency of synchronous collection of an electrocardiogram signal and a heart sound signal in the prior art.

The invention is a method for processing a phonocardiographic signal characterising fetal breathing movement (FBM), whereinin initial start point (SP) determination (S100)in frequency filtering (S110), bandpass-filtered signals of frequency subbands by first and second bandpass filters are generated from the phonocardiographic signal, andfirst identified SP of an FBM episode is determined in a frequency subband in SP search (S120),in episode discovering (S130) further SP is searched applying the SP search (S120) in episode search time period, andif found at smaller distance from identified SP than a clustering threshold, it is merged with identified SP,if found at larger distance from identified SP than the clustering threshold, an SP closest to identified SP is identified as second identified SP.The invention is, furthermore, a system for processing a phonocardiographic signal characterising FBM. (FIG. 4A)