10 results about "Liver surgery" patented technology

The application discloses a liver surgery precise navigation method and system based on a Transformer and a multi-modal point cloud registration, and solves the technical problem that a generated surgery cutting path cannot meet the core requirement of safety and precise cutting of liver surgery by using a current point cloud registration method. The method comprises the following steps: acquiring a preoperative liver point cloud and an intraoperative surgery point cloud, obtaining a 4D input tensor and a dense point cloud with weights through residual-density adaptive sampling, GeoTransformer module initial pose estimation and voxelization processing, generating a final safe surgery path and real-time navigation data by relying on a Transformer path encoder planning through Fourier neural operator field-field mapping, heterogeneous material field driven volume deformation, geometric constraint verification and closed section generation processing.

Disclosed is a marker unit for use in augmented reality aided surgery, and in particular laparoscopic liver surgery. The marker unit comprises a flat body with two main surfaces. One of the main surfaces is provided with a set of optically detectable markers, and the opposite main surface is arranged to be connected to a bodily organ, and preferably provided with an adhesive. The marker unit further comprises a set of radiopaque markers that are visible by a medical imaging system. Both the optically detectable markers and the radiopaque markers are provided in a geometrical pattern not having rotational symmetry, thereby allowing the rotational position of the marker unit to be determinable. The geometrical patterns of the optically detectable markers and the radiopaque markers have a fixed, predetermined correlation.

The application relates to the technical field of liver surgery, and discloses a liver surgery planning system based on data fusion. The system comprises an image data fusion module, a three-dimensional model construction module, a surgery path planning module, a risk assessment module and a scheme optimization module. The image data fusion module integrates CT and MRI images to generate a standardized image fusion model; the three-dimensional model construction module generates a liver three-dimensional visual model based on the image fusion model; the surgery path planning module plans an optimal resection path to form a preliminary surgery path scheme; the risk assessment module assesses the surgery risk and generates a report; and the scheme optimization module adjusts parameters based on the report to generate a final surgery planning scheme. The system accurately presents the liver structure and the tumor position, scientifically plans the surgery path, assesses and avoids the surgery risk, optimizes the surgery scheme, and helps precise implementation of liver surgery through multi-source data fusion and three-dimensional visualization technology.

The invention discloses an engineering modification method for improving the repair effect of an exosome on liver injury, which is characterized in that the exosome is subjected to engineering modification, and the exosome is accurately guided to a liver area needing to be treated, so that the repair effect of the exosome on the liver injury is improved. The invention provides a new hope for patients subjected to liver surgery, especially for liver transplantation patients, and the engineered and modified mesenchymal stem cell exosome is expected to assist liver transplantation and improve prognosis of the liver transplantation patients.

The invention belongs to the technical field of surgical navigation, and particularly relates to a liver surgical navigation system based on fluorescence and three-dimensional reconstruction and a storage medium. The system comprises: an input module configured to input an endoscopic image collected during an operation and a preoperative three-dimensional reconstruction model; the segmentation module is configured to segment a liver region in the endoscope picture; a fluorescence segmentation module configured to segment a fluorescence region from the liver region; the three-dimensional reconstruction module is configured to perform intraoperative three-dimensional reconstruction to obtain a liver three-dimensional reconstruction model, and the liver three-dimensional reconstruction model comprises a part corresponding to the fluorescent region; and the point cloud registration module is configured to register the liver three-dimensional reconstruction model obtained by the three-dimensional reconstruction module and the liver area in the preoperative three-dimensional reconstruction model. The liver surgery navigation system can provide more objective, accurate and easily recognized navigation information, can better achieve the target of precise medical treatment, and has a good application prospect.

The invention provides a liver postoperative peritoneal drainage tube anti-drop fixing nursing device, and relates to the technical field of peritoneal drainage tube anti-drop, the liver postoperative peritoneal drainage tube anti-drop fixing nursing device comprises a first mounting disc, the first mounting disc is provided with a storage mechanism convenient for anti-drop storage, and the storage mechanism comprises a second mounting disc, a fixing circular shaft, a guide ring, an adjusting rod and a drainage catheter; the second mounting disc is located on one side of the first mounting disc, and the fixed circular shaft is located between the first mounting disc and the second mounting disc. According to the combined structure, the fixed circular shaft, the guide ring and the adjusting rod are arranged and matched, so that the drainage catheter is stored, a liver postoperative patient needs to gradually carry out rehabilitation activities such as walking out of a bed and the like, and the exposed length of the drainage catheter directly affects the activity convenience; containing and releasing of the drainage catheter can be flexibly controlled, and the exposed length of the drainage catheter can be increased or decreased at any time according to the activity requirement of a patient.

The invention discloses a portal vein medical image segmentation system and method based on automatic parameter configuration, and relates to the field of medical image processing, artificial intelligence and computer-aided diagnosis. Multi-center medical image key statistical features are obtained through a data set feature extraction module, and an automatic parameter configuration module automatically generates optimal network training parameters based on the features without manual intervention; and then model training is completed through a network training module, key parameters are recorded by an empirical parameter output module for cross-center migration, and a three-dimensional segmentation result and a visual interface are output by a prediction visualization module. According to the method, a full-intelligent process from data input to segmentation output is realized, the method is adaptive to multi-center and multi-mode medical images, the segmentation precision is high, the robustness is high, the method can be widely applied to liver operation planning, portal hypertension evaluation, liver cancer diagnosis and treatment monitoring, and the clinical diagnosis efficiency and consistency are greatly improved.

The application discloses a kind of 13 The application discloses a mefedrone injection lyophilized powder injection and a preparation method and application thereof, and belongs to the technical field of pharmaceutical preparations. 13 The mefedrone injection lyophilized powder injection is prepared by a freeze-drying method from raw materials, and the raw materials include 13 Mefedrone, excipients, cosolvents and pH regulators. 13 The raw drug mefedrone is prepared into 13 The mefedrone injection lyophilized powder injection is used, and the stability of the raw drug mefedrone is improved, and storage and transportation are facilitated. 13 The mefedrone injection lyophilized powder injection can be used for preparing drugs, reagents or kits for disease diagnosis, liver reserve function evaluation and preoperative and postoperative evaluation of liver surgery. 13 The mefedrone injection lyophilized powder injection can be used for preparing drugs, reagents or kits for disease diagnosis, liver reserve function evaluation and preoperative and postoperative evaluation of liver surgery.

The application relates to the field of biological medicine, in particular to application of sodium tiglate in preparation of products for promoting liver regeneration and reducing blood ammonia; it is found and disclosed for the first time in the application that sodium tiglate can be applied to preparation of liver regeneration or liver function recovery products, liver cell proliferation capacity of residual liver after partial hepatectomy can be improved by using sodium tiglate, blood ammonia level after liver surgery is controlled, nitrogen metabolism disorder is improved by promoting conversion of blood ammonia into urea, and liver cell regeneration capacity is improved; the application of sodium tiglate provides a new treatment strategy with clear action mechanism and wide development prospect for treatment of insufficient liver regeneration after partial hepatectomy and hyperammonemia.

The utility model relates to a triangular liver suspension device. A main body of the triangular liver suspension device is a triangular TPU (Thermoplastic Polyurethane) film sheet; a first traction rope is fixed at the vertex angle of the TPU film sheet; a second traction rope is arranged on the opposite side of the vertex angle of the TPU film sheet; wherein a strip-shaped curled edge is arranged between the two bottom corners and on the opposite side of the top corner, a right lower curled edge is arranged at the bottom corner on the right side, the second pulling rope is fixed at the bottom corner on the left side, and the second pulling rope sequentially penetrates through the strip-shaped curled edge and the right lower curled edge and extends out of the right lower curled edge. According to the laparoscopic surgery minimally invasive principle, the design is simple, operation is easy and convenient, a surgeon can quickly master and use the laparoscopic surgery minimally invasive surgery device easily, direct contact with the liver in the surgery process can be reduced, injury and bleeding risks are reduced, the laparoscopic surgery device can further adapt to different types and parts of liver surgery, stable suspension support is provided, and trauma to the body of a patient is reduced.