16 results about "Heart surgery operation" patented technology

The invention belongs to the field of cardiac surgery, and particularly relates to a cardiac surgery preoperative pulmonary complication prediction method which comprises the following steps: data preprocessing including abnormal value processing, missing value processing, feature correlation analysis, data discretization and data standardization, abnormal values and irrelevant data in the case data set are filtered and removed, and interference of the abnormal values on follow-up model learning is avoided; according to the method, data quality and feature validity are guaranteed from the source through a hierarchical progressive data preprocessing process; noise interference to model learning is avoided by filtering abnormal values and irrelevant data; for missing values, differentiation processing is carried out according to the missing rate (features with the missing rate larger than 30% are removed, and features with the missing rate smaller than 30% are filled with median, regression prediction or mode according to variable types), compared with an existing model simple filling mode, data deviation is greatly reduced, and data integrity and reliability are improved.

The invention discloses an ultrasonic imaging system and method based on a heart surface, a medium and a product, the system comprises an ultrasonic detection assembly and an imaging terminal which are in communication connection, an ultrasonic transducer is packaged at the head end of an attached ultrasonic probe in the ultrasonic detection assembly, and an acoustic window on the ultrasonic transducer is planar; the ultrasonic transducer is used for being attached to the surface of the heart or the aorta, and the plane of the ultrasonic transducer is parallel to the plane of the acoustic window; and the imaging terminal is used for generating a sound velocity mask pattern according to the reference ultrasonic image, determining echo time delay data according to the sound velocity mask pattern, synthesizing and reconstructing the radio frequency signal data according to the echo time delay data to obtain an ultrasonic image, performing motion compensation on the image sequence, performing multi-modal fusion on the ultrasonic image subjected to motion compensation, and obtaining a final ultrasonic image. The problem of acoustic interference of anatomical structures such as the chest wall and the esophagus in a traditional echocardiography technology is solved, and real-time and high-quality image support is provided for cardiac surgery.

The invention belongs to the field of medical instruments, and particularly relates to an absorbable pace-making wire, which comprises a chest wall penetrating steel needle, a magnesium metal wire, a zinc film coated electrode, a single-strand wire, a coil and a curved needle, the magnesium metal wire is mounted at one end of the chest wall penetrating steel needle, and the zinc film coated electrode is mounted at one end of the magnesium metal wire; one end of the zinc film wrapped electrode is provided with the single-strand wire and the coil, one end of the single-strand wire and one end of the coil are provided with the curved needle, the magnesium metal wire is wrapped by a layer of absorbable material film (such as polycaprolactone material), and the electrode part of the magnesium metal wire in contact with the cardiac muscle is not provided with a polymer coating and is only wrapped by zinc foil. According to the invention, a temporary cardiac pacing effect can be achieved after an operation, and slow degradation and absorption can be gradually realized by a human body in about one year. Complication and secondary operation are avoided, performance is improved by means of innovative materials, electric signal transmission is guaranteed through structure optimization, and a better choice is provided for temporary pacing in cardiac surgery.

The present invention relates to heart surgical instruments, in particular to a valve prosthesis device having a segmented tapered structure. The device comprises an outer stent and an inner stent. The outer stent comprises a disc-shaped structure deployed on the atrial side, an annular structure matched with the valve annulus side, and split structures having different tapers and deployed on the ventricular side. Resilient clamping members are distributed on the peripheral side of the outer stent on the basis of original valve leaflets. The inner stent is connected to the interior of the outer stent, and is internally provided with a valve body. The device further comprises barbs or protrusions selectively or integrally distributed on the annular structure of the outer stent, which are used for anchoring a valve prosthesis to the congenital valve annulus of the heart. The disc-shaped structure and the annular structure are of a round structure or a special-shaped structure; and the split structures having different tapers are distributed at 60°-120°. Using the split tapered structure can reduce obstructions of outflow tracts and improve the adaptability of prostheses.

The application belongs to the field of heart surgery, and particularly relates to a preoperative lung complication prediction method for heart surgery, which comprises the following steps: data preprocessing, including abnormal value processing, missing value processing, feature correlation analysis, data discretization and data standardization; abnormal value processing, filtering to remove abnormal values and irrelevant data in the case data set, so as to avoid interference of abnormal values on subsequent model learning; missing value processing, in which the application guarantees data quality and feature effectiveness from the source through a hierarchical progressive data preprocessing process: filtering of abnormal values and irrelevant data avoids noise interference on model learning, and missing values are processed differently according to missing rate (features are removed when the missing rate is greater than 30%, and features are filled with median, regression prediction or mode according to variable types when the missing rate is less than 30%), which greatly reduces data bias compared with the existing model simple filling method, and improves data integrity and reliability.

The application provides a kind of based on augmented reality navigation heart blood flow imaging system and navigation image generation method, it is related to biomedical optical imaging technical field, the system includes: laser speckle image acquisition unit according to electrocardiogram ECG signal determines acquisition window, and after the imaging focus is actively compensated based on real-time ranging result in the acquisition window, laser speckle image sequence of heart surface is collected;Navigation image generation unit quantifies the degree of stenosis of blood vessel according to blood flow index, and generates blood flow navigation image in combination with laser speckle image sequence;Navigation image projection unit projects blood flow navigation image to the corresponding blood vessel area of heart surface.The application provides based on augmented reality navigation heart blood flow imaging system and navigation image generation method, not only realizes high-fidelity, quantitative blood flow imaging and intuitive, in situ surgical navigation integration, also significantly improves the precision and safety of coronary artery bypass grafting and other heart surgery.

The present invention relates to a suture-free epicardial temporary pacemaker lead kit, which is used for installing a temporary pacemaker after cardiac surgery. Generally, the temporary pacing lead can be removed when there is no need for pacing for 72 consecutive hours after surgery. The pacemaker lead can also be removed after the patient's condition stabilizes and improves, which should not exceed one month. If the lead is not removed, it is very likely to cause infection, and even a debridement operation may be required. Due to various reasons, it is still common for the pacemaker lead to be temporarily unable to be removed. In this case, another thoracotomy is often required, which not only increases the pain and burden of the patient, but also is a hidden danger causing medical disputes. The beneficial effects of the present invention: the use of the present invention can easily connect the pacemaker lead to the epicardium without suture, and when removing the pacemaker lead, it is only necessary to pull out the fixed line inserted into the left end of the lead to easily pull the lead out of the body, effectively solving the problem that the pacemaker lead is difficult to remove during surgery.

The present application relates to the technical field of surgical instruments, in particular to a heart surgery dilator, which comprises a support, a driving assembly, a first dilator plate and a second dilator plate, the support is provided with a sliding frame, the second dilator plate is fixedly connected with the sliding frame, the driving assembly comprises a rocker and a pulley assembly, the pulley assembly comprises a fixed pulley set and a movable pulley set, the movable pulley set can move along a first direction relative to the sliding frame, the pulley assembly further comprises a traction rope wound on the fixed pulley set and the movable pulley set, when the rocker is rotated to wind the traction rope on the rocker, the traction rope pulls the movable pulley set to move along the first direction relative to the sliding frame, the first gear is rotatably installed on the sliding frame, the support is provided with a first rack, the first gear is in meshing transmission with the first rack, when the movable pulley set moves along the first direction relative to the sliding frame, the first gear is driven to move along the extension direction of the first rack, and the first dilator plate and the second dilator plate are close to or away from each other. The present application can reduce the operation difficulty of doctors.

The invention discloses a pericardium anti-adhesion patch with a three-layer composite structure and a preparation method of the pericardium anti-adhesion patch. The patch is composed of zwitterionic hydrogel on the inner layer and the outer layer and poly-(N-acryloylglycine amide) hydrogel on the middle layer. The inner layer simulates the lubrication characteristic of the pericardium serosa layer, and friction during cardiac pulsation is reduced; the middle layer has tensile strength and flexibility similar to those of a natural pericardium fiber layer, and the mechanical performance is enhanced; and the outer layer has the characteristic of biological adhesion resistance, so that the formation of postoperative pericardial adhesion is inhibited. All the layers are connected in an interface molecular chain interpenetrating mode to form a gradient cross-linked structure, and the overall synergy and stability are improved. The patch shows an excellent anti-adhesion effect after a sheep left ventricular auxiliary system implantation operation, is suitable for pericardium anti-adhesion treatment in a cardiac surgery operation, and has important clinical application value.

The utility model relates to the technical field of storage devices, in particular to a triple pressure measurement fixing device applied to cardiac surgery anesthesia, which comprises three shells connected in sequence, and storage assemblies for storing fixed arterial pressure, pulmonary arterial pressure and central venous pressure measurement leads are respectively arranged in the three shells; the distance between the adjacent shells is adjustable; by adjusting the distance between the adjacent shells, the distance between the three wires can be changed according to operation requirements, mutual winding of the three wires is avoided, the wires can be shrunk or released by rotating the storage rod, medical staff can adjust the length of the wires according to actual conditions, and the situation that the wires are too long or too short, and operation is affected is avoided.

This invention provides a suture fixation device for cardiac surgery, aiming to address the need for suture fixation without knotting and with adjustable tension. The device includes a clamp, a clamping buckle, a locking mechanism, an adjusting mechanism, and a retaining mechanism. The clamping buckle clamps the suture through linear movement, and the locking mechanism uses a unidirectional rotation structure to prevent loosening. The adjusting mechanism allows the surgeon to adjust the suture tension in real time during surgery, ensuring precise tension control. The retaining mechanism automatically adjusts to maintain a fixed state when the suture tension changes, preventing reverse loosening. The limiting mechanism effectively prevents suture rebound through a ratchet and pawl structure, ensuring stable tension. This device can firmly fix sutures without knotting, is suitable for high-precision surgeries such as those involving the heart and blood vessels, and significantly improves surgical efficiency and safety.

The invention provides a heart disease simulation teaching system based on mixed reality fusion, and relates to the technical field of teaching auxiliary equipment, and the system comprises an AI heart knowledge graph subsystem which is used for constructing a heart knowledge graph database and a heart surgery operation knowledge base; the heart virtual model building subsystem is used for simulating different pathological change processes of heart diseases; the virtual operating room construction subsystem is used for constructing a virtual operating room; the MR equipment is used for displaying the three-dimensional heart model and the virtual operating room and capturing the implementation of the operation action through MR motion capture; and the teaching analysis subsystem is used for positioning according to the surgical action captured by the MR motion capture, capturing the trajectory of the surgical action and determining whether the trajectory of the surgical action is effective or not. According to the method, AI and MR technologies are integrated, and an omnibearing and immersive heart disease teaching system is constructed.

The constant-temperature storage device comprises a storage bag and a suction pipe, an opening of the storage bag is in threaded connection with the suction pipe, a one-way valve is arranged on the side, close to the storage bag, of the suction pipe, and a membrane sealing piece is arranged at the end, away from the storage bag, of the suction pipe. The warm saline water supply device solves the problems that in the prior art, in a cardiac surgery operation, warm saline water supply equipment is not provided with an appliance with a reasonable structure, serious trouble and small defects are caused when a large amount of warm saline water is used for supplying in the operation, and the operation effect is greatly influenced. According to the constant-temperature storage device for the saline water in the operation, the overall structural design is reasonable, the saline water in the storage bag can be sealed and stored, the saline water can flow into the suction pipe in a one-way mode to meet the use requirement, the possibility that the saline water in the storage bag is polluted is reduced, and the saline water cannot be polluted in the operation process and the use process of a large amount of saline water; furthermore, the saline water in the suction pipe can be conveniently sucked through the arrangement of a leather film sealing piece.

Disclosed herein are methods, compositions and devices for diagnosing pathologic pulmonary vascular disease development, progression, and outcomes from cardiac surgical interventions, particularly surgical palliation in SVHD, and more particularly superior cavopulmonary anastomosis procedures. In particular, methods are provided for assessing risk of post-Stage 2 complications arising from intolerance of Stage 2 physiology due to e.g., pulmonary vascular inadequacy.

1. Name of the designed product: transcatheter device. 2. Use of the designed product: the designed product is used for transcatheter treatment of tricuspid regurgitation in interventional cardiac surgery. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The invention relates to the technical field of cardiac surgery, and particularly discloses a heart suspension mechanism and a using method thereof.The heart suspension mechanism comprises two connecting plates, and the opposite sides of the two connecting plates are connected with a plurality of first connecting belts; according to the heart suspension mechanism, through careful design and cooperative cooperation of all the components, in the fixing and suspension process of the heart and the cardiothoracic part, the end, away from the winding roller, of the suspension rope is connected to the heart stabilizer, and by means of the length adjusting effect of the suspension rope, a worker can adjust the suspension height and angle of the hearts of different patients, so that the heart suspension efficiency is improved. A more efficient, safer and more convenient fixing and hanging solution is provided for cardiac surgery and rehabilitation treatment, meanwhile, the device is suitable for bypass surgery with the requirement for the heart position, the surgery field is exposed, the risks of cardiac adventitia injury and cardiac rupture are reduced, the surgery difficulty of the bypass surgery of old patients is reduced, and the patient experience is improved. The risk of complications caused by the heart fixator in the operation is reduced, and the bypass operation is convenient to popularize.