9 results about "Atrial cavity" patented technology

The invention discloses a left auricle plugging device provided with a real-time atrial pressure monitoring chip, and particularly relates to the technical field of left auricle plugging, the left auricle plugging device comprises a plugging device body and a connector, the top end of the connector is provided with a signal supply module, and the signal supply module is located in the plugging device body; according to the left atrial appendage plugging device, after the inductor in the nut generates a voltage signal, the signal can be transmitted to the low-noise operational amplifier and amplified, meanwhile, the electromagnetic interference between the noise of a circuit and the outside world is restrained, and the plugging device can be used for plugging the left atrial appendage of the left atrial appendage of the left atrial appendage. The physical deformation is converted into corresponding electric signals, the electric signals are transmitted to an in-vitro receiving terminal through an antenna, and a doctor can indirectly judge the recovery condition of the atrial contraction function of the patient according to the pressure signal trend.

The invention relates to a novel multivalent atrial appendage occluder of hybrid design based on two different atrial appendage occluders, one having a proximal disk-shaped cover and a second version without a proximal cover. The two occluder variants each provide relevant application solutions by themselves. The invention further relates to multiple specified, universal devices composed of predominantly rotationally symmetrical individual parts for producing these different LAA occluders (LAA=Left Atrial Appendage) which are graded in different sizes, for the interventional, catheter-based closure of the left atrial appendage. Axially and radially oriented hooks support the secure and gentle anchoring of the occluders 1 in the retaining area of the atrial appendage 26. As a result, the use of substantially smaller access ports in the interventional application is possible. The two atrial appendage occluder variants, with and without proximal cover 14, can be inserted using the same controllable access port and can be implanted in various sizes individually or in combination with one another and likewise as a hybrid variant of two occluders, one without a proximal cover (14) and one subsequently with a proximal cover (14) in one and the same atrial appendage (24) as shown in FIG. 17. The two atrial appendage occluder variants can each be released during the implantation phase in three stages until they are fully unfolded.

The application provides a guide system for patent foramen ovale (PFO) interventional closure device guide wire, which comprises a sheath tube dilator assembly, a guide tube component, a first guide wire and a second guide wire; the sheath tube dilator assembly comprises a fixed sheath tube component and a dilator component, the tube structure of the dilator component is arranged in the tube structure of the fixed sheath tube component; the sheath tube dilator assembly has an operation part for controlling the movement of the distal end of the sheath tube dilator assembly to the fossa ovalis of the atrial septum; the tube structure of the guide tube component is rotatably and slidably arranged in the tube structure of the dilator component, and the distal end of the guide tube component is used for entering the PFO tunnel from the fossa ovalis of the atrial septum, thereby establishing a left atrial passage. The application can significantly improve the success rate and efficiency of the operation, and effectively solves the guide wire passing difficulty problem caused by the small size, adhesion or anatomical variation of the PFO tunnel by using the step-by-step strategy of first mechanically expanding the PFO tunnel by using the guide tube component and then exploring the path by using the second guide wire.

The invention provides a guide system for a guide wire of a patent foramen ovale interventional occluder. The guide system comprises a sheath tube dilator assembly, a guide tube component, a first guide wire and a second guide wire, the sheath tube expander assembly comprises a sheath tube fixing component and an expander component, and a tube body structure of the expander component is used for being arranged in a tube body structure of the sheath tube fixing component in a penetrating mode. The sheathing canal dilator assembly is provided with an operation part which is used for controlling the far end of the sheathing canal dilator assembly to move to the atrial septum fossa ovalis; the pipe body structure of the guide pipe component is used for being rotatably and slidably arranged in the pipe body structure of the expander component in a penetrating mode, and the far end of the guide pipe component is used for entering the PFO tunnel from the atrial septum fossa ovalis, so that a left atrial channel is established. According to the method, the operation success rate and efficiency can be remarkably improved, and the problem that a guide wire is difficult to pass through due to the fact that the PFO tunnel is small, adhesion or anatomical variation is effectively solved by means of the step-by-step strategy that the PFO tunnel is mechanically opened through the guide pipe component firstly and then the second guide wire explores a path.

The invention relates to an atrial arrhythmia recognition method and system based on a space-time diagram neural network and atrial signal source reconstruction and a storage medium. According to the method, source decoupling of ventricular and atrial activities is achieved through a signal processing architecture combining independent component analysis and variational mode decomposition; the atrial signal extraction distortion under wide QRS wave group and noise interference is fundamentally avoided; meanwhile, a multi-modal feature system fusing time domain dynamics, frequency domain morphology and spatial synchronism is constructed, and a space-time diagram convolutional network constructed based on lead physical and physiological topology is matched, so that the space-time dependency relationship of the multi-lead electrocardiosignals is effectively captured. In addition, the introduced attention mechanism provides a visual decision basis, and the accuracy and interpretability of atrial fibrillation and atrial flutter identification in complex pathological scenes with conduction block and the like are remarkably improved.

A method for left atrial appendage (LAA) invagination, including:convexing a portion of the LAA wall into the LAA, wherein the convexing includes convexing the LAA wall portion by applying suction from a collapsible suction cup contacting the LAA wall on the LAA wall portion;grasping the convexed LAA wall portion within the LAA, following the convexing; invaginating the LAA at least partly into the left atria (LA) using the convexed LAA portion;wherein the grasping includes controllably collapsing the collapsible suction cup on the convexed LAA portion with a force sufficient to hold the convexed LAA portion during the invaginating.

A method is provided. The method is implemented by a mapping engine. The mapping engine includes processor executable code that is stored on the memory and executed by the processor. The method includes acquiring a catheter trajectory in real time during an ablation procedure, and training a pre-trained neural network based on a data set and the catheter trajectory to provide a trained neural network. The method includes approximating an atrial shape with a trained neural network and a portion of a catheter traversal path, and generating a three-dimensional model output from the trained neural network and the atrial shape. The method further includes displaying the three-dimensional model output as an early visualization in the ablation procedure.

Methods, systems, and devices for atrial fibrillation (AFib) detection are described. A method may include acquiring physiological data collected from a user via a wearable ring device, the physiological data including temperature data and motion data, and identifying that a measurement trigger condition for AFib has been satisfied based on the temperature data satisfying a temperature threshold and the motion data satisfying a motion threshold. The method may include sampling photoplethysmogram (PPG) data for the user via the wearable ring device based on identifying satisfaction of the measurement trigger condition, and classifying one or more AFib states based on the sampled PPG data. The method may further include causing a GUI of a user device to display an indication of the one or more AFib states.

Methods, systems, and devices for atrial fibrillation (AFib) detection are described. A method may include acquiring physiological data collected from a user via a wearable ring device, the physiological data including temperature data and motion data, and identifying that a measurement trigger condition for AFib has been satisfied based on the temperature data satisfying a temperature threshold and the motion data satisfying a motion threshold. The method may include sampling photoplethysmogram (PPG) data for the user via the wearable ring device based on identifying satisfaction of the measurement trigger condition, and classifying one or more AFib states based on the sampled PPG data. The method may further include causing a GUI of a user device to display an indication of the one or more AFib states.