Catheter for taking out ureteral stent

Abstract

The invention relates to the technical field of medical instruments, in particular to a catheter for taking out a ureteral stent. The catheter for taking out a ureteral stent comprises a guide tube, abent tube part, an end part, a protective sealing plate, a perfusion channel, grasping forceps, a main pipeline, a perfusion tube, an optical fiber introducing tube and a cystoscope, the right end ofthe guide tube is fixedly connected to the left side of the bent tube part, the right side of the bent tube part fixedly communicates with the left side of the end part, a working channel is formed in the middle of the lower half part of the end part, and an optical fiber channel is formed in the middle of the upper half part of the end part. The invention achieves the purpose that an optical fiber scope is repeatedly used after an operation, the optical fiber scope cannot make any contact with human tissue on the premise that the operation view field generated by optical fibers is not hindered, and therefore the optical fiber scope can meet the disposable use requirement and is low in cost and price and free of pollution. Therefore, after the operation, the optical fiber scope does not need sterilization treatment and can perform continuous operation.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a ureteral stent taking catheter. Background technique [0002] Clinically, after surgery for ureteral stenosis, blockage, and stones (including kidney stones, etc.), a ureteral stent will be placed. One end of the stent is placed in the bladder, passing through the ureter, and the other end is placed in the renal pelvis. It plays the role of expansion support and drainage after operation. However, the ureteral stent placed in the human body needs to be taken out after a certain period of time. The general time is about 1-3 weeks. The doctor will judge and decide the time to take it out according to the specific situation. A minor operation, under the action of a cystoscope, the ureteral stent is captured by grasping forceps. [0003] The working channel of the grasping forceps is on the cystoscope (integrated with the cystoscope), and the grasping forceps enter the bla...

AI Technical Summary

Problems solved by technology

[0003] The working channel of the grasping forceps is on the cystoscope (integrated with the cystoscope), and the grasping forceps enter the bladder through this working channel to grasp and remove the ureteral stent, and this instrument (cystoscope and grasping forceps) is repetitive The instruments used need to be completely and effectively sterilized and aseptically packaged after each use, and the operation can only be performed in the operating room, which is expensive. In addition, there are requirements for disinfection and sterilization after each use , so the operation schedule cannot be carried out continuously, that is, a cystoscope can only perform one operation in a short period of time, and there is also a one-time flexible cystoscope, but the cost is very expensive

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