18 results about "Heart Part" patented technology

The invention relates to a method for generating a spatio-temporal model (4DLVM) of a part of a patient's heart, comprising the following steps: (E1) Receiving a plurality of ultrasound images (EG) of a patient's heart; (E2) Generating a spatial model (3DLVM) of at least a given part of the heart from the plurality of ultrasound images received; Receiving a photoplethysmographic (PPG) signal from said patient; Determining a function of change of volume of the heart (LVVC), during all or part of a cardiac cycle of the patient's heart, from the photoplethysmographic signal; Generating a spatio-temporal model (3DLVM) of said part of the heart by means of the spatial model of said part of the heart and said function of change of volume of the heart.

The invention discloses an oyster infrared heart rate measuring device and method, and the method comprises the steps: placing an oyster in a testing basin, drilling a hole in the shell of the oyster heart part through a punching assembly on a moving arm, and spraying seawater to the shell of the oyster through a spraying pipe on the moving arm in the punching process; an infrared probe of the infrared sensor is kept in contact with the heart of the oyster through a clamping assembly on the fixed arm; collecting an infrared sensing signal of the oyster heart through an infrared sensor; the infrared sensing signals are analyzed and processed through the signal processing assembly, and the oyster heart rate measuring result is obtained. According to the oyster heart rate monitoring device, all the assemblies with the functions of drilling, spraying, fixing and the like are integrated, integration of the oyster heart rate monitoring device is achieved, the operation steps of oyster heart rate monitoring are simplified, and heart rate signals can be rapidly and nondestructively detected in the breeding process and the transportation process so as to evaluate the oyster vigor state. The method can be widely applied to the technical field of shellfish biological monitoring.

The utility model relates to the field of underwear, in particular to an anti-deformation silk-screen cup. Comprising a cup body, the cup body comprises ear parts, side parts, a heart-shaped part and two cup covers, the side parts are arranged on the sides, away from each other, of the two cup covers, the ear parts are arranged on the upper edges of the sides, close to the side parts, of the cup covers, and the heart-shaped part is located between the two cup covers. A first anti-deformation silk-screen layer is arranged on one side, close to the side part, of each cup cover. The first anti-deformation silk-screen layer and the second anti-deformation silk-screen layer are printed on the surface of the cup cover through the silk-screen printing technology, printing ink curing for printing has the good anti-deformation effect, and therefore the synergistic effect is achieved through mutual cooperation of the first anti-deformation silk-screen layer and the second anti-deformation silk-screen layer; when the cup is subjected to external force such as pulling or washing in the using process, the external force can be effectively resisted, and the shape of the cup cover is kept unchanged, so that the structural stability and the using comfort of the cup are improved.

The present invention discloses a non-contact heart rate variability monitoring method based on a frequency-modulated continuous wave radar. The specific method includes transmitting a periodic linearly frequency-modulated wave to the area where the monitoring object is located and collecting the radar echo signal; preprocessing the radar echo signal by using mixing and FFT in sequence; then extracting the position of the heart part of the monitoring object; adopting a phase correlation method to extract the motion information of the heart part of the monitoring object and calculating its acceleration signal accordingly; smoothing the obtained acceleration signal and estimating the position of the segmentation point between each heartbeat by using a peak detection method; generating an acceleration template signal for a single heartbeat and precisely segmenting the acceleration signal to obtain the inter-beat interval of each heartbeat, and calculating the heart rate variability index. The present invention uses microwaves as the detection medium and has many advantages such as strong anti-interference ability, strong penetration ability for non-metallic obstacles, high integration, low power consumption, high measurement accuracy, and strong robustness.

The utility model relates to a vest type bra, it relates to the technical field of female underwear, it contains: the front width, the back of the book connected in the both sides of front width, set in the lower of the front width and the back of the book one end, the cup pad inbed in the front width, and set in the middle of front width the heart part, the front width includes: the surface layer, the lining connected in one side of surface layer, the line silica gel of arc shape setting between surface layer and lining, and the tensile layer is bonded to the lower side of line silica gel and is in the heart part, compared with the existing bra, the above technical scheme has the advantages that the heart part is stressed evenly, is not easy to be stretched and wrinkled, the comfort is improved, and the stability of the lower is improved.

The utility model discloses a wearable binding belt for cardiovascular nursing. The wearable binding belt comprises a first binding plate and a second binding plate, a second binding plate is mounted at one end of the first binding plate; a soft cushion is mounted on the side surface of the first binding plate; through the arrangement of the soft cushion, the stretching column and the like, an operator puts on the first binding plate in front of the chest through the connecting belt, moves the soft cushion to the position matched with the heart, tightens and puts on the first binding plate through the binding belt sleeve at one end of the connecting belt, and the stretching column at the bottom of the first binding plate slides in the movable groove; the position of a second binding plate is pulled to be matched with the body of a user, a threaded sleeve is rotated into a movable groove, the position between a first binding plate and the second binding plate is fixed, when the user needs to bend the body, a soft cushion protects the heart, and the first binding plate and a third binding plate provide certain support; the body is kept vertical, and wound tearing caused by bending of the heart is prevented.

Critical isthmus for treatment of tachycardia via application of ablation therapy may be automatically identified by an electroanatomical mapping system from voltage and timing maps of a portion of a patient's heart. The system identifies one or more low-voltage regions from the voltage map and one or more deceleration zones from the timing map. Based on the identified low-voltage regions and deceleration zones, the system can generate an output including an identification of one or more critical isthmus locations through application of a classifier trained with data from a plurality of subjects that received ablation therapy for treatment of tachycardia. The system can also output a tachycardia termination confidence value for each identified critical isthmus location. The classifier may employ a convolutional neural network algorithm.

Embodiments of the present disclosure provide a left ventricular ejection fraction prediction method, device, equipment, medium and product. The method comprises: acquiring a heart ultrasound sequence of a heart part; inputting the heart ultrasound sequence into a target processing model trained in advance to output a left ventricular graph sequence which has been marked with a left ventricle; determining a plurality of effective image pairs according to area change rates of a plurality of left ventricular segmentation images in the left ventricular graph sequence, and determining left ventricular end-diastolic volumes and left ventricular end-systolic volumes corresponding to each effective image pair; and determining a left ventricular ejection fraction according to the left ventricular end-diastolic volumes and the left ventricular end-systolic volumes associated with the plurality of effective image pairs. The technical solution of the embodiments of the present disclosure processes the heart ultrasound sequence based on the target processing model to determine the left ventricular ejection fraction, which can weaken the influence of factors such as poor single-frame quality, respiratory jitter and arrhythmia, thereby achieving the effect of improving the accuracy of the left ventricular ejection fraction.

It is provided a cardiac mask configured for use in a cardiac ablation, including a ponent aperture in view of the at least one zone of interest identifying a portion of the heart undergoing cardiac ablation, made of an electrically insulating material and substantially counter-shaped to the heart so as to be rested on the heart during cardiac ablation.

The application relates to an enhanced lifting bra, which relates to the technical field of underwear. The enhanced lifting bra comprises an inner layer, a surface layer and an adhesive layer arranged between the inner layer and the surface layer; the thickness of an ear part of the adhesive layer is greater than the thickness of the main body of the adhesive layer; the main body of the adhesive layer comprises a heart part, a lower digging part, a side comparison part, a front width part, a comparison bending part, a lower binding part and an upper binding part. The technical scheme has the advantages of enhanced lifting, enhanced gathering and upholding effects on the chest and better shaping effect.

Disclosed are various embodiments of methods, components and systems configured to determine a location of a source of cardiac arrhythmia in a patient's heart. In some embodiments, to determine a source location, electrogram signals are acquired from a region of the patients' heart using a first set of electrodes; and then a pre-trained artificial intelligence (AI) model is applied to predict the location of the cardiac arrhythmia source by using the signals. Importantly, pre-training of the AI model comprises acquiring electrogram signals from explanted human hearts, the signals are generated by a second set of electrodes assembled into an electrode array that covers at least a part of the explanted human heart, and acquiring co-registered functional and / or structural imaging data in the part of the explanted human heart covered with the electrode array, wherein the functional and / or structural imaging data provide location of at least one source of cardiac arrhythmia.

To improve the visibility of a scanning range from a gastric alveolus part to a cardiac base part when displaying a part detection map.SOLUTION: A display control program causes a computer to execute processing to: acquire a captured image in which multiple parts including a gastric alveolus part, a heart part, and a flow-out channel are scanned; detect the multiple parts at each scanning time; consider parts where a value of a detection rate exceeds a set value and which continue for a set number of frames or more as blocks of the target part and consider blocks that are closer than a certain number of frames to be one continuous block to detect blocks included in the captured image; determine a start position of the display area from a relative positional relation among a first block corresponding to the gastric alveolus part, a second block corresponding to the heart part, and a third block corresponding to the flow-out channel, so that the heart part is in the center of the display area; and display a part detection map associated with the time series of the scan according to the determined start position of the display area.SELECTED DRAWING: Figure 1

The invention relates to a method for generating a spatio-temporal model (4DLVM) of a portion of a patient's heart, comprising the following steps: (E1) Receiving a plurality of ultrasound images (ECi) of a patient's heart; (E2) Generating a spatial model (3DLVM) of at least one given portion of the heart from the plurality of received ultrasound images; Receiving a photoplethysmographic signal (PPG) of said patient; Determining a heart volume change function (LVVC), during all or part of a cardiac cycle of the patient's heart, from the photoplethysmographic signal; Generating a spatio-temporal model (3DLVM) of said portion of the heart using the spatial model of said portion of the heart and said heart volume change function. Figure to be published with the abstract: Fig. 1

The utility model belongs to the technical field of medical teaching models, in particular to a human heart teaching model, which comprises a model main body, a base and a connecting frame, the base is arranged below the model main body, and the connecting frame is arranged between the model main body and the base. By arranging the aorta assembly, the pulmonary artery trunk, the pulmonary artery valve and the aortic valve, when an operator learns the heart part of a human body through the model, the model main body can be divided into two parts, and at the moment, the state displayed by the model main body is a complete internal structure chart; an operator can directly extirpate the pulmonary artery valve and the aortic valve, so that the internal circulation condition of the pulmonary artery trunk is exposed, and the difference of the pulmonary artery valve and the aortic valve in the opening or closing state can be visually displayed; by coating the outside of the model main body with epoxy paint, abrasion of the model main body in long-time touch friction can be reduced, the service life of the structure is prolonged, and misunderstanding of students caused by abrasion of the external paint is also prevented.

Disclosed are radiomics and artificial-intelligence-based methods for predicting clinical cardiac assessment of FDG PET-CT scans. Certain embodiments use a computational method to extract features from one or more cardiac portions of diagnostic scans (e.g., FDG PET-CT scans). In certain embodiments, the method can use extracted features to predict cardiotoxicity for physician evaluation. In certain embodiments, the method can use the extracted features to predict for cardiac clinical complications. In certain embodiments, the method can enable early cardiac toxicity prediction for cancer patients using standard-of-care FDG PET-CT imaging. In certain embodiments, the method can provide a cardiac management decision support tool using standard-of-care FDG PET-CT imaging. In certain embodiments, the method can enable the incorporation of the extracted features in radiation treatment planning (e.g., for patients whose management involves radiation) using standard-of-care FDG PET-CT imaging.

The utility model discloses a polycrystalline diamond compact base body, the upper surface of the base body is a combination surface combined with a diamond layer, the combination surface comprises a center part and an edge part, the center of the center part is provided with a circular bulge, first strip-shaped bulges are uniformly radiated outwards from the outer edge of the circular bulge, and a second strip-shaped bulge is arranged between any two first strip-shaped bulges. The second strip-shaped bulge is not in contact with the circular bulge; the outer edge of the core part is an edge part, the core part and the edge part are in arc transition, the edge part is an inclined surface with high inside and low outside, elliptical bulges are uniformly arranged on the edge part, and the outer parts of the elliptical bulges are close to the outer circle of the base body. According to the polycrystalline diamond compact, the bonding surface is optimized, the contact area of the hard alloy matrix and the diamond micro powder is increased, and the abrasion ratio, the impact resistance and the stability of the polycrystalline diamond compact are improved.

The utility model discloses a real-time visible mapping catheter in the technical field of mapping catheters, which comprises a first catheter which is a multi-cavity catheter and comprises a catheter cavity, a guide wire cavity and a guide wire cavity; the near end of the first catheter is connected with a functional handle, a groove is formed in the far end of the first catheter, and a guide wire penetrates through the guide wire cavity; the second catheter is arranged in the catheter cavity, the near end of the second catheter is also connected with the functional handle, the far end of the second catheter is located in the groove, and a tension wire is arranged in the second catheter; the ultrasonic transducer is arranged at the far end of the first catheter, the mapping electrode is arranged at the far end of the second catheter, and the tail of the functional handle is provided with two connecting channels which are respectively connected with the ultrasonic host and the electrophysiological system; the functional handle is used for controlling the guide wire and the tension wire. According to the mapping catheter, the position of the mapping electrode in the heart can be visually judged, mapping of the electric potential in the heart can be rapidly and effectively carried out, the accuracy and speed of mapping of the electric potential of the heart part are improved, and the operation time is shortened.

Critical isthmus for treatment of tachycardia via application of ablation therapy may be automatically identified by an electroanatomical mapping system from voltage and timing maps of a portion of a patient's heart. The system identifies one or more low-voltage regions from the voltage map and one or more deceleration zones from the timing map. Based on the identified low-voltage regions and deceleration zones, the system can generate an output including an identification of one or more critical isthmus locations through application of a classifier trained with data from a plurality of subjects that received ablation therapy for treatment of tachycardia. The system can also output a tachycardia termination confidence value for each identified critical isthmus location. The classifier may employ a convolutional neural network algorithm.