8 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 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 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.

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.