6 results about "Urinary stone" patented technology

This invention discloses a traditional Chinese medicine formula for preventing and treating feline urinary tract diseases, its preparation method, and its application. The formula consists of the following components in parts by weight: 15-25 parts of Psoralea corylifolia, 15-25 parts of Alpinia oxyphylla, 10-20 parts of Trigonella foenum-graecum, 5-15 parts of Zea mays, 5-15 parts of Juncus effusus, 10-20 parts of Dioscorea hypoglauca, 10-20 parts of Phellodendron chinense, 10-20 parts of Lonicera japonica, 5-15 parts of Paeonia lactiflora, and 5-15 parts of Glycyrrhiza uralensis. The traditional Chinese medicine formula provided by this invention has diuretic and urinary tract mucosal repairing effects. It can effectively relieve symptoms such as urinary stones, painful urination, hematuria, or gravel in the urine caused by damp-heat in the lower abdomen. It promotes the repair of the urinary tract mucosa in animals with urinary tract diseases, alleviates inflammatory responses, and prevents the formation of crystals in the urine.

This invention provides an ultrafine lithotripsy probe, comprising a probe base and a probe body. One end of the probe base has a mounting hole for installing the probe body. The probe body is installed in the mounting hole using an interference fit. The overall length of the ultrafine lithotripsy probe is 550mm–610mm, and the diameter of the probe body is 1.1±0.2mm. This invention can directly reach the stone lesion location through natural body cavities such as the ureter, without requiring minimally invasive perforation of the body surface, resulting in minimal trauma. Simultaneously, its structural dimensions are rationally configured, with high ultrasonic vibration transmission efficiency, excellent overall bending and fracture resistance, and is not easily broken, thus meeting the clinical needs for non-invasive lithotripsy of urinary tract stones.

This invention discloses a medical image segmentation method for urinary stones based on region connectivity, belonging to the field of medical image processing technology, to solve the problems of high-density bone interference and topological fragmentation in stone segmentation. First, a piecewise weighted mapping function is constructed to adaptively adjust the window width and perform anisotropic filtering on the image, generating a bone suppression feature map. Then, a maximum stable extremum region algorithm combined with anatomical priors is used to extract high-confidence seed points. A fast traversal algorithm is executed using a constructed gradient resistance field to detect geodesic temporal field abrupt changes to define boundaries, generating a simply connected mask. Finally, three-dimensional dense morphology and texture consistency features are fused for weighted discrimination to remove vascular calcification artifacts. This invention ensures the topological connectivity and high accuracy of the segmentation results.

This invention discloses a method and apparatus for predicting the risk of urinary tract infection (UTI) in children with urinary tract stones based on nomograms. The method includes: acquiring and preprocessing clinical data of pediatric patients to obtain a raw dataset; performing univariate analysis on the training set based on clinical indicators to obtain candidate variables significantly associated with UTI; performing multivariate logistic regression analysis on the candidate variables to obtain independent predictors; constructing a nomogram model based on the independent predictors; calculating a corresponding score for each independent predictor in the nomogram model; calculating the total score of the independent predictors and obtaining the prediction probability; and performing quantitative evaluation and curve analysis on the prediction probabilities to obtain the UTI risk assessment results. This invention is the first to organically integrate four indicators: gender, mean CT value, U-LEU, and NIT, greatly improving the efficiency of clinical decision-making.

The urinary system stone composition entity specimen teaching box effectively solves the inconvenience of existing urinary system stone teaching, comprising an upper and lower axial bottom plate, a fixed column coaxially arranged on the upper end of the bottom plate, a display box with an opening upward coaxially and rotatably connected to the fixed column, a plurality of arc-shaped fixed clamping plates uniformly distributed along the circumferential direction of the display box, a plurality of movable clamping plates corresponding to the fixed clamping plates and arranged in the display box, a rotating groove opened in the upper end of the fixed column, a connecting rod hingedly connected in the rotating groove, and a magnifying glass arranged at the front end of the connecting rod.

This invention discloses a method, device, and storage medium for preventing accidental injury during laser surgery for urinary tract stones based on a visual AI model. The method includes: acquiring and preprocessing a video stream captured in real-time by a monocular ureteroscope; inputting the image to be identified into a multi-task neural network model, simultaneously outputting a laser point detection box, a mucosal region segmentation mask, and a monocular depth map; determining the coordinates of the laser point center pixel based on the detection box, determining the coordinates of the nearest mucosal edge pixel based on the segmentation mask, and obtaining the corresponding first and second depth values ​​from the depth map; inputting the coordinates, depth values, and intrinsic parameter matrix into a three-dimensional distance calculation model, reconstructing the three-dimensional spatial point coordinates based on the pinhole imaging formula, and calculating the actual physical distance; comparing the actual physical distance with dynamically adjusted safety and warning thresholds, and determining the risk level through fuzzy logic; generating control commands based on the risk level and sending them to the laser host to achieve graded early warning, power adjustment, or emergency interruption.