4 results about "Left atrial appendage occlusion" patented technology

This invention relates to an occlusion device and corresponding tooling, comprising a relatively independent fixing part and a sealing part, which are assembled to form the occlusion device. Thus, the fixing part and the sealing part can be manufactured, fabricated, and transported independently, and then assembled according to the required dimensions when implantation is needed. Therefore, the assembled left atrial appendage occlusion device has a wider range of size combinations, thus possessing good adaptability and fully adaptable to some special-sized left atrial appendage shapes. Simultaneously, the tooling facilitates the assembly of the occlusion device, enabling efficient and precise assembly with minimal impact on the device's physical properties and lifespan.

The application provides a sheath tube of an adjustable bending guide sheath, a sheath seat and a bonding method, and is mainly applied to an adjustable bending guide sheath in the field of atrial fibrillation ablation treatment or the field of atrial fibrillation left atrial appendage occlusion. In the application, the structure of a sheath seat fixing mechanism and a sheath tube clamping mechanism is systematically designed, and the bonding method of the sheath seat fixing mechanism and the sheath tube clamping mechanism is exemplarily described. The problems of low qualified rate and time-consuming in the bonding process can be solved, and the qualified rate and efficiency of the bonding of the adjustable bending sheath tube and the sheath seat are improved.

This invention relates to an occlusion device and tooling, comprising a relatively independent fixing part and a sealing part. The fixing part and the sealing part are assembled to form the occlusion device, which is then loaded into a sheath. The assembly and loading processes are performed simultaneously. Thus, the fixing part and the sealing part can be manufactured, fabricated, and transported independently, and then assembled according to the required dimensions when implantation is needed. Therefore, the assembled left atrial appendage occlusion device has a wider range of size combinations, resulting in better adaptability and fully adaptability to some special-sized left atrial appendage shapes. Simultaneously, the tooling facilitates the assembly of the occlusion device, enabling efficient and precise assembly with minimal impact on the device's physical properties and lifespan.

The application discloses a kind of for left auricle plugging operation navigation multi-modal image automatic registration method, comprising the following steps: collecting structural heart disease intervention surgery patient preoperative CTA image and intraoperative CBCT image;Using U-Net deep learning framework, the heart region in CTA image and CBCT image is segmented and extracted, and the extracted image region is carried out data enhancement and size normalization etc.Pretreatment operation;With the network of depth convolution and visual Transformer fusion, the heart region image of CTA and CBCT is calculated Affine transformation matrix, so that the CTA image and CBCT image realize 3D affine registration;The image after registration is filled to the cutting region of the CBCT image, and the intraoperative CBCT image containing heart anatomical structure information is generated.The method of the application can realize the automatic, fast and accurate spatial registration of preoperative CTA image and intraoperative CBCT image, and the fusion image view generated by registration provides comprehensive reference for the heart three-dimensional anatomical structure and real-time instrument position, effectively assists instrument positioning, path planning and size selection, and provides a new intelligent tool for left auricle plugging operation navigation.