| abstract |
The invention provides a backflow-preventing ureteral stent, which relates to the technical field of auxiliary medical devices, including a urinary catheter and a non-return assembly, wherein the urinary catheter includes a hollow tube, and the inner cavity of the hollow tube is formed for urine The tube wall of the hollow tube is bent inward to form a limit section; the non-return component is arranged in the hollow tube, and the non-return component includes an elastic wire and a blocking block, so One end of the elastic wire is fixedly connected with the inner wall of the hollow tube, and the other end is fixedly connected with the blocking block, and the blocking block is used to cooperate with the limiting section to open or close the fluid channel . Through the cooperation of the elastic thread, the blocking block and the limiting section, the invention can realize the unidirectional drainage of the ureteral stent, prevent the problem of urine reflux from the bladder to the kidney, greatly reduce the probability of upper urinary tract infection of the patient, and is beneficial to The patient recovered during treatment. |