69 results about "Heart procedures" patented technology

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.

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.

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.

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.

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.

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.

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.

A guidewire is disclosed comprising a distal tip, a distal shaft, and a proximal shaft, and a distal sensor configured to measure a distal pressure and transmit a distal sensor signal through a distal fiber; and a proximal sensor housing connected distally to the distal shaft on one end and connected to the proximal shaft on another end, the proximal sensor housing partially enclosing a portion of the distal fiber, a tip of a proximal fiber, and a proximal sensor connected to the proximal fiber and configured to measure a proximal pressure. A guidewire connector and a guidewire coupler, as well as methods of manufacturing thereof are also provided.

A computer-implemented method includes obtaining data related to a heart medical procedure for a patient, the data including patient-specific data including 3D computational analysis generated from pre-procedural medical imaging, device data related to at least one device to be deployed in the heart medical procedure, and interactive input from medical personnel. The method includes generating, based on the data, options of modification strategies including device modifications to the at least one device and anatomical modifications to the patient's anatomy. The method includes simulating the heart medical procedure and generating a simulation outcome for each option of the modification strategies, selecting a modification strategy that corresponds to the simulation outcome having a desired heart medical procedure result, and generating procedural recommendations including device deployment instructions and modification parameters to guide the heart medical procedure in real life.

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 utility model discloses a minimally invasive tool packing box for cardiac surgery, which comprises a box body, a box cover and a fixed inner frame, the top of the box body is provided with the box cover which is rotatably connected, one side of the box cover is fixedly connected with a hinge, the other side of the box cover is provided with a buckle which is buckled and connected with the box body, the box body is internally provided with embedded grooves which are uniformly distributed, and the embedded grooves are connected with the fixed inner frame. The fixing inner frame is longitudinally connected with the embedding groove in an inserted mode, a fixing groove is formed in the center of the fixing inner frame, a supporting bracket is arranged on the edge of the fixing groove, the surface of the fixing inner frame is further covered with a coating film, and a handle groove is formed in the top of the fixing inner frame. The packaging box is composed of the box body, the box cover and the inner fixing frame, minimally invasive tools for cardiac surgery can be conveniently packaged, stability and safety of fixation of the minimally invasive tools are improved, the inner fixing frame is longitudinally inserted into the box body and matched with the fixing groove and the coating film on the surface of the inner fixing frame, and therefore the minimally invasive tools can be conveniently packaged. The precise minimally invasive tool can be effectively prevented from being damaged by collision in the carrying and transporting process.

The application provides a heart valve balloon dilatation catheter applied to the technical field of medical devices, which comprises a balloon, a protection net, a support net, an inner tube, an outer tube, a connecting structure and a head end structure; the protection net is wrapped on the outer surface of the balloon, the protection net is provided with a supporting leg, the support net is fixedly surrounded on the outer surface of the protection net through the supporting leg, and a target interval is formed between the support 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 through the inside 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 is wrapped on the outer surface of the inner tube.In the heart valve balloon dilatation catheter, the target interval can provide a blood flow space, so that the blood can flow smoothly, the risk of ventricular fibrillation and cardiac arrest is reduced, and therefore the safety of heart surgery can be improved.

A system for guiding prosthetic heart valve procedures is provided that includes a console having a display and a processor and a tubular body supporting pressure sensor. The tubular body is configured to be inserted into a blood vessel (e.g., an artery) and advanced into a heart chamber (e.g., a ventricle). The processor is configured to: (a) receive fluoroscopic image data of a cardiovascular region that includes vascular segment adjacent to the heart (e.g., an aortic root) of a patient; (b) receive pressure signal data from the pressure sensor positioned in the cardiovascular region; (c) determine a marker indicating a location of a device positioning feature based at least in part on at least one of pressure signal data from the pressure sensor and analysis of the fluoroscopic image data; and (d) cause presentation of a user interface on the display that includes the fluoroscopic image and the marker.

Systems, methods, and devices for performing heart procedures include a multi-functional catheter with a multi-lumen arrangement. The multi-lumen arrangement includes a central lumen formed by an inner tube with multiple pressure channels embedded in the wall of the catheter. The central lumen has a first end hole terminating at a distal end of the multi-functional catheter. The outer lumen has one or more second side holes. Moreover, a welded tip can maintain a consistent diameter for the distal end. Multiple radiopaque markers can identify various portions of multi-functional catheter to aid in positioning the lumens at different placements in the heart and / or crossing the aortic valve. Accordingly, multiple diagnostic procedures can be performed with the multi-functional catheter, such as a coronary angiogram and a trans-valvular pressure gradient measurement, while omitting reliance on additional catheters or a digital console system.

The present invention discloses an artificial bioprosthetic heart valve device, which relates to the technical field of cardiac surgery. The leaflets are fixedly mounted on a support assembly so that the leaflets are supported and limited. The first edge (support wall 42) of the suture ring is used for suturing and fixing with the support assembly, and the second edge (suture wall 41) is used for suturing with the tissue ring. The wall surface of the suture ring has an axial extension so that there is an axial spacing between the first edge (support wall 42) and the second edge (suture wall 41). The first edge (support wall 42) is located outside the ventricle. The wall surface of the suture ring provides axial support for the support assembly. The axial extension size of the wall surface of the suture ring is used to move the support assembly away from the ventricle, thereby reducing the size of the support assembly extending into the ventricle. This structure does not require additional thickness increase of the suture ring, and will not affect the axial position of the support assembly when the suture is tightened.

The invention provides a cardiac postoperative infection risk prediction method and system, and the method comprises the following steps: S1, data collection: collecting clinical data and image data of a patient, the image data comprising spleen artery hemodynamic parameters obtained through stomach and abdomen ultrasound; s2, feature preliminary screening: performing Logistic single-factor regression analysis on the clinical data and the image data, and screening out candidate features according to statistical significance; and S3, analysis and calculation: carrying out Lasso regression analysis on the candidate features, determining key features and weight coefficients thereof, and calculating to obtain an infection risk probability value after the cardiac surgery. The infection risk prediction method and prediction system provided by the invention can specifically predict and identify infected high-risk patients so as to guide clinical intervention measures to be taken as soon as possible.

A system for a transcatheter mitral valve replacement procedure, including a catheter, a computing device including a processor and a memory, the memory storing an application including instructions that when executed by the processor cause the processor to receive pre-procedure images of a heart, display the pre-procedure images, display a user interface, display an indication of a location of a fossa ovalis on the user interface, display an indication of a location for deployment of a mitral valve replacement prosthetic on the user interface, determine one or more waypoints for advancement or articulation of the catheter, and display on the user interface a pathway for advancement or articulation of the catheter to traverse the fossa ovalis and arrive at the location for deployment of the mitral valve replacement prosthetic.

The invention relates to the technical field of cardiac surgery, in particular to a minimally invasive cardiac stabilization device which comprises a holder and a stabilizer, the holder comprises a first extension part and a holding part, the first extension part comprises an extension cylinder and a connecting seat, the extension cylinder is provided with a first wire passing hole, and the first wire passing hole is provided with a first traction rope; two ends of the extension cylinder are respectively connected with the holding piece and the connecting seat; the holding piece is provided with a rotatable first driving piece, the first driving piece is provided with a first transmission part, and the first transmission part is in transmission connection with the first pulling rope; the two stabilizers are arranged at intervals, and the stabilizers are rotationally connected with the connecting base so as to be switched between the first position and the second position. The stabilizer is provided with a stable surface and a second transmission part, and the stable surface is provided with an adsorption hole; the second transmission part is in transmission connection with the first traction rope; at the first position, the normal of the stabilizing surface is parallel to the arrangement direction of the stabilizers; at the second position, the normal of the stabilizing surface is perpendicular to the arrangement direction of the stabilizers. The device is high in flexibility and can be adapted to minimally invasive treatment.

The heart valve assessment systems described herein advantageously provide indicators of a heart valve condition, such as a pressure gradient or a valve regurgitation index. The heart valve assessment systems can provide indicators of a heart valve condition during a heart procedure. A pressure gradient indicates a severity or measurement of the narrowing (or stenosis) of a valve by the increase in pressure behind it. A valve regurgitation index indicates a leakiness measurement of a valve.

The application provides a vena cava cannula assembly, relates to the technical field of medical devices, and is used for improving the safety of heart surgery. The vena cava cannula assembly comprises a vein pipe body, the vein pipe body has an insertion end and an extracorporeal end in communication, a positioning ring is slidably connected with the vein pipe body, and an umbrella-shaped clamping ring is slidably sleeved on the vein pipe body and located on one side of the positioning ring close to the insertion end. An opening is arranged on the side wall of the umbrella-shaped clamping ring, the umbrella-shaped clamping ring surrounds a clamping space, one side of the clamping space towards the insertion end is provided with a clamping port, and the opening is in communication with the clamping space. Thus, the positioning ring can be prevented from falling off, so that a medical accident can be avoided, and the safety of surgery is improved. Meanwhile, the insertion part of the vein pipe body can be tightened through the sliding of the umbrella-shaped clamping ring, so that a hemostatic effect of preventing blood from flowing out due to a heart wall tear can be achieved, and the surgery efficiency is improved.