4 results about "Ureteral calculus" patented technology

The utility model discloses a self-expanding umbrella-shaped extractor which comprises a handle. An outer pipe is fixed in the handle, and the outer pipe penetrates out of one end of the handle and extends to the outside; an inner pipe capable of moving in the axial direction of the outer pipe is arranged in the outer pipe, a blocking component is fixed to one end of the inner pipe, and a blocking film is arranged on the surface of the blocking component. The shape of the self-expanding umbrella-shaped ureteral calculus blocking and removing catheter can be accurately controlled manually, the self-expanding umbrella-shaped ureteral calculus blocking and removing catheter can be easily placed in a ureter, calculus cannot be pushed to retrograde to the kidney, ureteral wall damage cannot be caused, the opening diameter of the umbrella shape can be adjusted timely to completely block the ureter, and the catheter is convenient to use. The calculus and calculus fragments are effectively prevented from being flushed back into the kidney by perfusion water flow, the condition of calculus incarceration is not prone to occurring, deformation and ureter wall friction are not prone to occurring in the dragging and calculus removing process, all calculus can be taken out at a time, and the purpose of efficient calculus removal is achieved.

The embodiment of the application provides a ureteral calculus positioning method and system based on multi-modal ultrasound, relates to the technical field of medical ultrasound imaging, and first acquires multi-modal ultrasound imaging data covering different scanning angles and various imaging principles; then, based on the anatomical layered structure of the ureter, the data is jointly regionally divided to obtain joint ultrasound region data divided according to the anatomical level; then, the different modal ultrasound signal propagation performances corresponding to each region data are analyzed, and a cross-modal signal feature set related to the calculus is extracted; a dynamic association link of the cross-modal signal feature set and the imaging performance of the calculus is established; finally, the spatial relationship between the cross-modal signal features and the anatomical structure is integrated in combination with the anatomical layered position to generate a precise positioning result of the calculus in the ureter, including information such as the anatomical segment where the calculus is located, the relative position to the lumen wall and the distance relationship with the surrounding key structure, thereby greatly improving the accuracy and reliability of ureteral calculus positioning.

The invention discloses an intelligent multi-mode lithotripsy cooperative regulation and control method and system for ureteral calculus, and relates to the field of lithotripsy regulation and control action collaboration.The method comprises the steps that state vectors of a target object at M observation timestamps are obtained, a state transition sequence of the target object is constructed, and state vectors of N target objects are obtained, the method comprises the following steps: establishing N target objects, sequencing the N target objects to construct a state transition sequence of the N target objects, constructing a state intensity sequence of the N target objects on a time axis, anchoring J state improvement objects in the N target objects, constructing a tetrad state transition sample according to the J state improvement objects, defining the tetrad state transition sample as an offline sample set, and generating a cooperative regulation and control model. And on the basis of the coordinated regulation and control model, the lithotripsy regulation and control action of the to-be-regulated and controlled object is output, a closed loop from multi-mode observation data to equipment control instruction output is achieved, and the automatic coordinated level of lithotripsy equipment regulation and control is improved.

The application relates to the technical field of medical devices, in particular to a urinary stone expelling machine, which comprises a stone expelling machine body, a catheter body, a probe and an illuminating lamp, further comprises clamping air bags, a plurality of clamping air bags are arranged at one end of the catheter body, when in use, the plurality of clamping air bags can be inflated and expanded under the action of the driving air bag, so that the plurality of clamping air bags clamp the stones in the urethra, the control board arranged in the driving air pipe can limit the use of the air passage under the action of the control rope and the control spring, so that one of the plurality of clamping air bags is expanded, the angle of the stone can be limited through the expanded clamping air bag, the elastic sheet of the clamping air bag is reversely wound, after the medical staff places the stone in the catheter body, the plurality of clamping air bags lose the gas support, and are reversely wound, so that the medical staff can control the plurality of clamping air bags to clamp more stones.