112 results about "Heart procedures" patented technology

The invention provides a heart multi-mode digital twinning simulation method and system, electronic equipment and a medium, and belongs to the technical field of digital twinning. The method comprises the following steps: S1, collecting multi-modal data of a heart; s2, preprocessing the acquired multi-modal data to obtain heart digital data; s3, based on the heart digital data, constructing a multi-modal digital twinborn model of the heart and optimizing the multi-modal digital twinborn model; s4, performing real-time simulation on the electrophysiological activity of the heart by using the optimized multi-modal digital twin model and using a Runge-Kutta method in combination with a PSO (Particle Swarm Optimization) algorithm; s5, based on the optimized multi-mode digital twinborn model and the simulation result, simulation and planning of virtual cardiac surgical treatment are carried out; and S6, dynamically evaluating the multi-modal digital twin model, and monitoring the state change of the heart in real time. According to the heart multi-mode digital twinborn simulation method and system, the electronic equipment and the medium, efficient simulation and real-time monitoring of the heart state can be achieved.

The invention relates to the field of medical treatment, and discloses a cardiac surgery risk assessment system based on artificial intelligence. The system fuses electrocardiogram, image data and physiological data of wearable equipment, and data quality is ensured through a data preprocessing module; carrying out data dimensionality reduction and nonlinear mapping by using manifold learning and the method, and capturing a relationship between complex physiological signals; the sensor weight is optimized by adopting the maximum entropy principle, and the accuracy of the evaluation result is improved; performing space-time alignment of the multi-modal data based on the Lie group and Lie algebra theories; modeling the fused data by using a machine learning algorithm to generate a risk assessment result; the real-time feedback module dynamically adjusts the evaluation model and system parameters, and the output module displays an evaluation result through a visual interface to assist doctors in accurate decision making. The system improves the accuracy and real-time performance of assessment, and provides scientific and comprehensive risk assessment support for cardiac surgery.

The invention discloses an artificial biological heart valve device, and relates to the technical field of heart surgeries. Valve leaflets are fixedly mounted on a supporting assembly, so that the valve leaflets are supported and limited; the first edge (supporting wall 42) of the suture ring is used for suturing and fixing with the supporting assembly, and the second edge (suturing wall 41) is used for suturing with the tissue ring; the wall face of the suture ring has extension in the axial direction, so that an axial distance exists between the first edge (supporting wall 42) and the second edge (suture wall 41), the first edge (supporting wall 42) is located outside the ventricle, the wall face of the suture ring supports the supporting assembly in the axial direction, and the supporting assembly is made to be away from the ventricle by means of the extension size of the wall face of the suture ring in the axial direction. By the adoption of the structure, the thickness of the suture ring does not need to be additionally increased, and the axial position of the supporting assembly cannot be affected during suture and tensioning.

The invention discloses a thoracoscope minimally invasive cardiac surgery navigation system based on multi-modal image fusion, and the system comprises the steps: constructing a 5D heart digital twin containing an anatomical structure, a soft tissue boundary, metabolic activity and electrophysiological information through fusing preoperative CT, MRI, PET and intraoperative ultrasonic images; real-time dynamic registration is realized by using an electrocardio gating driven biomechanical model; superposing the multi-color coding navigation information to the visual field of the thoracoscope through a wavelength selection type spectroscope; a dynamic risk scoring model is constructed based on the distance, the speed and the tissue vulnerability, and three-level grading intervention is triggered; a miniature force feedback actuator is integrated to realize closed-loop control; and pre-operation virtual drilling and post-operation federal learning optimization are supported. The system remarkably improves the surgical precision and safety, and is suitable for high-difficulty heart minimally invasive surgeries such as mitral valve repair and atrial fibrillation ablation.

The invention discloses a postoperative sub-delirium syndrome risk prediction system for a cardiac surgery patient, and relates to the technical field of medical treatment, and the system comprises a clinical data collection module which is used for collecting multi-dimensional clinical data of the cardiac surgery patient in a perioperative period under extracorporeal circulation, the data comprises patient baseline information, preoperative neurocognitive function evaluation indexes, intraoperative physiological parameters and postoperative early-stage vital signs; and the risk identification module is used for utilizing a single-factor statistical analysis mechanism. According to the postoperative sub-delirium syndrome risk prediction system for the cardiac surgery patient, accurate prediction of the sub-delirium syndrome risk is achieved by collecting multi-dimensional clinical data of the patient in the perioperative period, such as baseline information, preoperative neurocognitive function, intraoperative physiological parameters and postoperative early-stage vital signs; the independent risk factors are scientifically screened and quantified by using single factor analysis and a multivariate Logistic regression model, and the problem of incomplete data dimensions in traditional evaluation is effectively solved.

Planning cardiac surgery is a complex task. Current heart models are mostly static and provide no functional information or personalization apart from structural information from imaging modalities like MRI, CT etc. The embodiments of present disclosure addresses unresolved problem of generating a personalized four dimensional cardiac model that integrates blood flow velocity, pressure profile and volume on three-dimensional cardiac structure, providing a comprehensive tool for pre or post-surgical planning and analysis. Unlike existing techniques, which often rely on separate assessments of cardiac anatomy and hemodynamics, using invasive methods, the present disclosure provides a 4D cardiac model that captures the person specific dynamic interaction between cardiac structures and blood flow throughout the cardiac cycle. Further, the 4D cardiac model enables clinicians to visualize and quantify complex flow patterns and pressure distributions within the region of interest in the heart, facilitating precise surgical planning and outcome prediction especially in pediatric heart surgery.

The invention relates to a cardiovascular and cerebrovascular risk preoperative assessment method, device and equipment for a non-cardiac surgery and a storage medium. The method comprises the steps of performing feature extraction on multi-modal preoperative data of a target patient to obtain multi-modal data features; performing cross-modal interaction processing and global modeling and fusion on the multi-modal data features by a pre-operative feature fusion module based on cross-modal global cross attention to obtain cardiovascular and cerebrovascular risk features; and inputting the cardiovascular and cerebrovascular risk characteristics into a cardiovascular and cerebrovascular risk assessment module based on multi-dimensional reconstruction loss, and outputting a cardiovascular and cerebrovascular risk preoperative assessment result based on the multi-dimensional reconstruction loss by the cardiovascular and cerebrovascular risk assessment module under the guidance of the comprehensive quantitative assessment of the to-be-predicted risk. According to the method, the efficiency and the accuracy of the pre-operative assessment of the cardiovascular and cerebrovascular risks of the non-cardiac surgery are improved, the extraction and fusion process of the multi-modal data features is optimized, and the pre-operative assessment capability and the generalization capability of the model on the cardiovascular and cerebrovascular risks are improved.

An integrated transcatheter valve replacement and Piezoelectric Micro-Machined Ultrasonic Transducer (pMUT) enabled ultrasonic imaging system, is disclosed. The system comprising a transcatheter valve replacement assembly having a longitudinal axis, a proximal end, and a distal end. The transcatheter valve replacement assembly comprises a self-expanding valve, a frame and leaflets. A micro-electromechanical (MEMS) based pMUT transducer having MEMS based pMUT array disposed within the distal end of the transcatheter valve replacement assembly. The MEMS based pMUT array comprises a substrate and a plurality of pMUT array elements arranged on the substrate. The integrated transcatheter valve replacement and pMUT enabled ultrasonic imaging system is used in left atrial appendage (LAA), atrial septal defect (ASD), transcatheter aortic valve replacement (TAVR), transcatheter mitral value replacement (TMVR), and transcatheter tricuspid valve replacement (TTVR) or other catheterized structural heart procedures.

A deflectable sheath or dilator or catheter used for cardiac procedures; it has a shaft with one or more lumens; an optical fiber for use in channeling light used for visualization of calcification, heart tissue architecture or the progress of the cardiac procedure; the sheath or dilator or catheter includes an additional optical fiber for use as part of an ultrafast laser for calcium removal on or in heart valve tissue or for performing surgical intervention of the heart, or where the optical fiber is configurable for propagating a photon beam as part of an ultrafast laser for removing calcium on or in heart valve tissue or for performing surgical intervention of the heart.

The invention provides a multi-degree-of-freedom obstacle avoidance control system and control method for a cardiac surgical robot, the system comprises a main control unit, a parameter detection unit, a data storage unit, a communication unit and a motion control algorithm unit, meanwhile, an out-of-environment obstacle avoidance method is designed for the surgical robot, and an obstacle avoidance method is designed for a scene in a surgery. An obstacle avoidance method in the environment is designed, the flexibility of the slave hand is improved, the motion real-time performance and cooperative performance of a single arm and multiple arms are enhanced, the accuracy and safety of the whole operation are improved, the control precision is improved, collision of the multiple arms in a narrow space is avoided, the obstacle avoidance function is achieved, and harm to a patient is reduced.

The invention relates to the technical field of medical data processing, and provides a real-time early warning method and device for cardiovascular and cerebrovascular events in a non-cardiac perioperative period. The method comprises the following steps: in an operation process of a target operation patient, acquiring intraoperative data of the target operation patient; inputting the intra-operative data into a trained time sequence large model to perform time sequence feature extraction processing to obtain time sequence feature representation of a target operative patient; through a pre-constructed multi-modal data graph, obtaining a joint feature representation of the target surgical patient; wherein the multi-modal data map is constructed based on multi-modal data of a plurality of historical surgical patients and preoperative data of a target surgical patient, and the combined feature representation of the target surgical patient is used for representing the health state of the target surgical patient; and according to the joint feature representation and the time sequence feature representation of the target surgical patient, predicting the risk of the cardiovascular and cerebrovascular event of the target surgical patient. By adopting the method, the accuracy of cardiovascular and cerebrovascular event risk prediction of the surgical patient can be improved.

There is provided a cardiotomy system comprising: a blood reservoir arrangement configured and arranged to be located in use within a sterile field of a patient undergoing cardiac surgery, wherein the reservoir arrangement comprises: a first reservoir having: at least one first inlet configured to be connectable to a cardiotomy sucker; and at least one first outlet; a second reservoir having: at least one second inlet configured to be connectable to a cardiotomy sucker; and at least one second outlet; wherein the first and second outlets are in fluid communication with at least one third outlet configured to be connected to a negative pressure source.

A method, apparatus and computer program product, the method comprising: obtaining electrical information from a plurality of electrodes disposed on a distal end assembly of a catheter within a heart of a patient as the catheter is being maneuvered within the heart; dynamically identifying a portion of the distal end assembly that is displaced from tissue wall of the heart, based upon the electrical information received from the plurality of electrodes; generating a visual representation of the distal end assembly; dynamically distorting the visual representation by warping (the identified portion of the distal end assembly; and rendering the visual representation as dynamically distorted to the display device.

A method for predicting and reducing a risk of acute kidney injury (AKI) after non-cardiac surgery includes selecting factors associated with an occurrence of acute kidney injury after non-cardiac surgery, calculating sensitivity and specificity to a sum of combinations of indexes for each index set, and setting cutoff values for classification according to the sensitivity and specificity, and calculating a sum of indexes determined according to the index set preset for each variable, and classifying risk of acute kidney injury after non-cardiac surgery of the non-cardiac surgery patient on the basis of the cutoff values into four grades, and administering, based on the classified grade, an AKI preventive agent to the patient.

Provided is a support device for a magnetic field generator, relating to the technical field of medical devices. The support device includes a cardiac surgery bed, and further includes a support column arranged at the bottom of the cardiac surgery bed. An output end of a servo motor is driven to make a first threaded rod rotate, the rotation of the first threaded rod drives a first driving wheel to rotate, the rotation of the first driving wheel drives a conveyor belt to drive, then the conveyor belt drives a second driving wheel to rotate to make a second threaded rod to rotate, thus making a thread bushing move. When the thread bushing moves, an extension plate is driven to move, and when the extension plate moves, a limiting shell is driven to move, thus adjusting a position of a mapping assembly.

A method for determining control parameters during a cardiac operation and related devices provided by the present application. During the process of perfusing cardioplegic solution into the interior of a heart model using a cardiac perfusion device, the first temperature of a target point in the heart model is obtained in real time, and the target point at least includes a target point in the myocardium; when the first temperature of each target point is lower than a first temperature threshold, the cardiac perfusion device is controlled to stop perfusing the cardioplegic solution; during the process of natural rewarming of the heart model, the second temperature of the target point in the myocardium of the heart model is obtained in real time; a first infrared image of the surface of the heart model when the second temperature reaches a second temperature threshold is obtained; the first surface temperature of the heart model is determined based on the first infrared image, and the first surface temperature is determined as the first control parameter for controlling the cardiac perfusion device to start perfusing again during a cardiac operation.

Described herein are methods and apparatus for implanting grafts to leaflets for cardiac procedures that are performed minimally-invasively while the heart is beating. The graft elongates, reinforces, and patches the leaflet. In certain disclosed examples, the graft is secured to the atrium or ventricle side of the leaflet with an artificial cord implanted on an edge of the graft to improve coaptation. In some disclosed examples, the graft is secured to both leaflets to enable an edge-to-edge procedure similar to the Alfieri technique. Some examples of the disclosed methods including introducing the graft into the ventricle and guiding it into place using artificial cords previously implanted in the leaflet.

The invention provides a heart valve balloon dilatation catheter which is applied to the technical field of medical instruments and comprises a balloon, a protection net, a supporting net, an inner tube, an outer tube, a connecting structure and a head end structure. The protection net wraps the outer surface of the balloon, supporting legs are arranged on the protection net, the supporting net fixedly surrounds the outer surface of the protection net through the supporting legs, and a target interval is formed between the supporting net and the protection net; the first end of the balloon is fixedly connected with the head end structure, the second end of the balloon is fixedly connected with the first end of the outer tube, the second end of the outer tube is fixedly connected with the connecting structure, the inner tube extends and penetrates through the interior of the balloon, the first end of the inner tube is connected with the head end structure, the second end of the inner tube is fixedly connected with the connecting structure, and the outer tube wraps the outer surface of the inner tube. In the heart valve balloon dilatation catheter, the target interval can provide a blood flowing space, so that blood can smoothly pass through, the risks of ventricular fibrillation and sudden cardiac arrest are reduced, and the safety of cardiac surgery can be improved.

A medical device assembly includes a hinge rod having a first portion and a second portion, and a pedestal is coupled to the second portion of the hinge rod, the pedestal having a top surface, and portions of the pedestal cooperate to define a trough that is configured to hold a first portion of a vessel on the top surface of the pedestal. A retainer is movably coupled to the pedestal, and the retainer has a planar member having a lower surface configured to oppose the top surface of the pedestal. A joint member is coupled to the hinge rod, and a clamp assembly is releasably coupled to the joint member such that when the clamp assembly is in a locked configuration, the hinge rod is not repositionable, and when the clamp assembly is in an unlocked configuration, the hinge rod is repositionable.

Provided herein are methods of generating optimized models of vascular grafts for subjects in certain embodiments. Methods of treating subjects in need of vascular grafts are also provided. Related systems and computer program products are additionally provided.

The invention discloses a functional magnetic stimulation therapeutic apparatus, and particularly relates to the technical field of medical equipment, the functional magnetic stimulation therapeutic apparatus comprises a device body, the device body is internally provided with a cavity, the cavity is internally provided with a safety disc, a catheter is a novel optical fiber catheter and can be used for measuring the pressure of the tail end of an IAB catheter, and the safety disc is arranged in the cavity. The optical fiber catheter transmits optical signals and is almost free of electromagnetic interference, the catheter is directly connected to the device connector, a pressure electric connector is not needed, connecting parts are reduced, the potential risk of infection is reduced, and the catheter can be used for heart failure or cardiac surgery patients with severe illness states and possibly low immunity. Complication caused by catheter related infection can be effectively reduced, the helium bottle extends into the clamping opening, an opening of the helium bottle is communicated with the connecting opening, then the cylindrical fixing block can be pressed to extrude the clamping block on the clamping piece, then the cylindrical fixing block can be fixed by rotating the threaded fixing block, and therefore the helium bottle can be rapidly fixed.

Disclosed herein are methods for preventing, treating, or reducing the severity of a cardiac surgery-associated acute kidney injury and extracorporeal membrane oxygenation-associated acute kidney injury in a subject. The methods include administering to the subject a therapeutically effective amount of a leukotriene receptor antagonist compound.

A medical device assembly includes a hinge rod having a first portion and a second portion, and a pedestal is coupled to the second portion of the hinge rod, the pedestal having a top surface, and portions of the pedestal cooperate to define a trough that is configured to hold a first portion of a vessel on the top surface of the pedestal. A retainer is movably coupled to the pedestal, and the retainer has a planar member having a lower surface configured to oppose the top surface of the pedestal. A joint member is coupled to the hinge rod, and a clamp assembly is releasably coupled to the joint member such that when the clamp assembly is in a locked configuration, the hinge rod is not repositionable, and when the clamp assembly is in an unlocked configuration, the hinge rod is repositionable.

An integrated transcatheter valve replacement and Piezoelectric Micro-Machined Ultrasonic Transducer (pMUT) enabled ultrasonic imaging system, is disclosed. The system comprising a transcatheter valve replacement assembly having a longitudinal axis, a proximal end, and a distal end. The transcatheter valve replacement assembly comprises a self-expanding valve, a frame and leaflets. A micro-electromechanical (MEMS) based pMUT transducer having MEMS based pMUT array disposed within the distal end of the transcatheter valve replacement assembly. The MEMS based pMUT array comprises a substrate and a plurality of pMUT array elements arranged on the substrate. The integrated transcatheter valve replacement and pMUT enabled ultrasonic imaging system is used in left atrial appendage (LAA), atrial septal defect (ASD), transcatheter aortic valve replacement (TAVR), transcatheter mitral value replacement (TMVR), and transcatheter tricuspid valve replacement (TTVR) or other catheterized structural heart procedures.

The present application relates to a method, apparatus, device and storage medium for preoperative assessment of cardiovascular and cerebrovascular risks in non-cardiac surgery. The method includes: extracting features from the target patient's multimodal preoperative data to obtain multimodal data features; using a preoperative feature fusion module based on cross-modal global cross-attention to perform cross-modal interactive processing and global modeling and fusion on the multimodal data features to obtain cardiovascular and cerebrovascular risk features; inputting the cardiovascular and cerebrovascular risk features into a cardiovascular and cerebrovascular risk assessment module based on multidimensional reconstruction loss, the cardiovascular and cerebrovascular risk assessment module is guided by the comprehensive quantitative assessment of the risk to be predicted, and outputs a preoperative assessment result of cardiovascular and cerebrovascular risk based on multidimensional reconstruction loss. The present application improves the efficiency and accuracy of preoperative assessment of cardiovascular and cerebrovascular risks in non-cardiac surgery, optimizes the extraction and fusion process of multimodal data features, and enhances the model's preoperative assessment capability and generalization capability for cardiovascular and cerebrovascular risks.

1. Name of the designed product: medical supply cart for operating room (cardiac surgery). 2. Use of the designed product: used as a medical supply cart for cardiac surgery. 3. Design points of the designed product: in shape. 4. Picture or photo that best indicates the design points: perspective view.

The invention provides a simulated heart valve, a preparation method and a cardiac surgery simulation device.The preparation method of the simulated heart valve comprises the steps that chopped fibers are modified, and modified fibers with active groups on the surfaces are obtained; mixing a nano reinforcing agent with the polyvinyl alcohol matrix precursor solution to obtain a composite solution; dispersing the modified fibers in the composite solution to obtain mixed slurry; the mixed slurry is subjected to pouring and freezing cross-linking treatment, and the simulated heart valve is obtained. According to the preparation method of the simulated heart valve, the elastic modulus, the tearing strength and the fracture toughness of the simulated heart valve can be effectively improved by constructing a ternary composite system of the modified fiber, the nano reinforcing agent and the PVA matrix, so that the simulated heart valve is highly matched with a real valve in mechanical property, and the integrity and the durability of the valve are remarkably enhanced.

The application relates to a lung tissue isolator, belonging to the technical field of medical devices, which comprises a first chest wall outer ring body, a first chest wall inner ring body and a mediastinal ring body, a first isolation film is arranged between the first chest wall outer ring body and the first chest wall inner ring body, the first isolation film is surrounded to form a first isolation cavity, a second isolation film is arranged between the first chest wall inner ring body and the mediastinal ring body, the second isolation film is surrounded to form a second isolation cavity, a support is arranged in the second isolation film, the support is used for supporting the second isolation film, and the first isolation cavity and the second isolation cavity are communicated to form a viewing channel. The second isolation film is used together with the support to isolate lung tissue, prevent lung tissue from expanding over the isolator into an upper cardiac surgery area along with respiration, and provide a good surgery view for thoracoscopy or chest wall lateral intercostal incision cardiac surgery while maintaining double lung ventilation.