8 results about "Base heart" patented technology

An assessment of basal cardiac fitness uses noninvasively obtained physiological measures to determine the presence of a basal physiological state and cardiometric measures to determine cardiac fitness. In the presence of preload independence and cardiac vagal control, cardiometric signals are acquired that are sensitive to cardiac function and include information indicative of the opening and closing of the individual's aortic valve. The cardiometric signals are analyzed by a cardiac fitness assessment system for the determination of basal cardiac fitness. The invention assures preload independence through the assessment of observational physiological parameters or the use of physiological parameters obtained following alterations in venous return. The invention assures the presence of cardiac vagal control by assessment of measured parameters, including the presence of respiratory sinus arrhythmia. The resulting test is specific for cardiac function without dependencies on physical activities associated with heart rate elevation or respiratory capabilities.

The invention relates to the field of treatment ultrasound, in particular to a heart rate regulation and control system based on focused ultrasound and application of the heart rate regulation and control system. The heart rate regulation and control system based on focused ultrasound comprises an ultrasonic stimulation module, a central control module and an electrocardiosignal acquisition module, the ultrasonic stimulation module is in communication connection with the central control module, and the electrocardiosignal acquisition module is in communication connection with the central control module. The heart rate regulation and control system based on focused ultrasound provided by the invention is controlled by the multi-degree-of-freedom mobile platform to noninvasively convey ultrasonic energy to a heart target region, so that the following effects are achieved: 1) the heart rate can be noninvasively and safely regulated; 2) the system is simple to operate; 3) the heart rate regulation and control effect is high in real-time performance; and 4) the heart rate regulation and control effect is obvious, and the heart rate can be increased by 10-40%.

Provided is a heart-rate control device capable of adjusting the heart rate of a subject to a desired value between a base heart rate and an active heart rate, such as a heart rate immediately after physical exercise. The heart-rate control device includes a detector for detecting heartbeat information of a subject, an input unit to which information on a target value relating to a heart rate of the subject is to be inputted, a difference extracting unit for determining a difference between the target value and a current value relating to the heart rate of the subject, the current value being calculated from the heartbeat information, a pattern generating unit for generating a stimulus pattern depending on the difference so that the current value approaches the target value, the stimulus pattern being a combination of a sympathetic nerve stimulus for stimulating sympathetic nerves, a parasympathetic nerve stimulus for stimulating parasympathetic nerves, and an initialization stimulus for preventing stimulus saturation of the sympathetic nerves or the parasympathetic nerves, and an output unit for outputting the sympathetic nerve stimulus, the parasympathetic nerve stimulus and the initialization stimulus to the subject in accordance with the stimulus pattern.

The application is suitable for the field of remote physiological parameter monitoring, and provides a heart rate determination method and device based on a region of interest and an electronic device, which comprises the following steps: acquiring a video stream comprising a face of a user to be measured; performing region of interest detection on the video stream by using at least two region of interest templates to obtain corresponding regions of interest; for each region of interest, determining a time sequence signal corresponding to the region of interest, performing blind source separation on the time sequence signal by using an independent component algorithm to obtain an independent component signal related to a heart rate, and calculating the heart rate according to the independent component signal to obtain a heart rate corresponding to the region of interest; determining a weight value of each region of interest; and determining a heart rate of the user to be measured according to the weight value and the heart rate corresponding to each region of interest. By using the above method, local abnormal disturbance can be inhibited, and the accuracy of the heart rate can be improved.

A system includes sensing circuitry configured to sense a physiological signal of a patient via one or more electrodes disposed on an implantable medical lead coupled to a medical device of the system; and processing circuitry configured to: determine that one or more features of the physiological signal are indicative of potential right ventricular (RV) lead dislodgement; determine a patient risk level of the patient based on one or more of: an underlying heart rate of the patient; or user input indicative of the patient risk level; and based on the determination that one or more features of the physiological signal are indicative of potential RV lead dislodgement and the patient risk level meeting a criterion, send an emergency alert to a user.

The invention discloses a heart rate monitoring method and device based on wearable equipment, equipment and a medium, and relates to the technical field of heart rate monitoring, and the method comprises the steps that PPG data of a target object is collected through the wearable equipment, and a target heart rate measured value and a target heart rate variability index are obtained based on the PPG data; extracting target HIS data of a target object from an HIS system of a hospital, and inputting the target HIS data, the target heart rate measured value and the target heart rate variability index into a pre-training heart rate grading model, so that the pre-training heart rate grading model is matched with a corresponding target heart rate variability index abnormal range threshold table based on the target HIS data, and determining and outputting a heart rate alarm level corresponding to the target heart rate measured value according to the target heart rate variability index abnormal range threshold table. Compared with a mode of judging abnormal heart rate according to single heart rate data or simple standards, the method fully considers the influence of individual disease characteristics of the patient on the heart rate.

The application discloses a kind of based on multi-plane cardiac valve determination method, device and electronic equipment.Therein, the method comprises: according to the anatomical structure image of heart, determine multiple target planes in heart;Determine the first initial push point in each target plane in multiple target planes;Determine the first push open arrival point corresponding to the first initial push point, wherein the position where the first push open arrival point is located is the position reached after the first initial push point moves to the pipe wall by first push open distance, and the pipe wall is the pipe wall of aortic sinus in heart;According to the first push open arrival point, determine the first push open range corresponding to each target plane;According to the first push open range corresponding to each target plane, determine the second push open range corresponding to autologous heart valve;According to the second push open range, determine the artificial heart valve matched with autologous heart valve.The application solves the technical problem that accuracy cannot be guaranteed due to the determination of heart valve according to experience in the related art.

The invention provides a heart rate monitoring method and system based on radar. The heart rate monitoring method comprises the steps that a microwave signal is transmitted to a target object, and a radar echo signal is received; based on a radar echo signal, setting a spatial position corresponding to the maximum echo energy as a core sampling point; determining a target area with a preset size based on the core sampling point, and additionally setting a plurality of auxiliary sampling points in the target area; performing spatial filtering on the radar echo signals corresponding to the sampling points in the target area; performing noise filtering on the radar echo signals corresponding to the sampling points in the target area after spatial filtering to obtain heart mechanical motion related signals corresponding to the sampling points; inputting the heart mechanical motion related signals corresponding to the sampling points into a pre-trained heartbeat waveform prediction model to output a heartbeat curve; and performing peak searching operation based on the heartbeat curve to obtain heart beat data, and obtaining a heart rate classification result based on the heart beat data.