Ureteral stent tube for relieving mucosal lesion and implantation method thereof

Abstract

The invention discloses a ureteral stent tube capable of relieving mucosal lesion. The stent tube is a hollow hose and comprises a tube body, bent sections and blunt thickening sections; the two endsof the tube body are provided with bent sections respectively. The annular diameter of the bent section is smaller, and the bent section is of a disc-shaped structure; the free end of each bent section is provided with a blunt thickening section, the outer diameter of each blunt thickening section is larger than that of each bent section; each blunt thickening section is of a spherical structure,and the end of each blunt thickening section is of a spherical structure, so that a series of side effects can be avoided; the tube body, the bent sections and the blunt thickening sections are identical in inner diameter, and the bent sections and the tube body are identical in outer diameter. According to the invention, tube pushing is not needed, the operation process is simplified, the steps are reduced in the implantation process, and the pain of a patient can be reduced; meanwhile, the two ends of the stent tube are arranged to be of a blunt structure, in the pushing-in process and afterthe stent tube is placed on the human body, stimulation to the renal pelvis and the bladder mucosa can be reduced at the ends, and the phenomena of hematuresis and the like caused by mucous membraneinjury and bleeding are avoided.

Description

technical field [0001] The invention belongs to the technical field of ureteral stents, and in particular relates to a ureteral stent for reducing mucosal damage and an insertion method thereof. Background technique [0002] The ureteral stent has the functions of stent and internal drainage. It is used for ureter-related operations and often needs to be left in the body for 1 to 6 months to ensure smooth drainage and relieve temporary obstruction caused by ureteral inflammation and edema. Postoperative urine leakage and ureteral stenosis. At the same time, it is not directly connected to the outside world, which can avoid bleeding and infection caused by nephrostomy; because there is no restriction and discomfort of external drainage tube, patients can get out of bed early, which is conducive to postoperative recovery . [0003] The existing ureteral stent set includes a stent tube, a guide wire, and a push tube. During the insertion process, the stent tube needs to be fed...

AI Technical Summary

Problems solved by technology

[0003] The existing ureteral stent set includes a stent tube, a guide wire, and a push tube. During the insertion process, the stent tube needs to be fed in with the help of the push tube, and at the same time, the ureteroscope is placed on the side of the push tube and pushed into the urethra. To judge the entry position of the stent tube, the two are pushed into the urethra together, the operation is more complicated, and it will bring a lot of physiological discomfort to the patient; and the walls of the two ends of the conventional ureteral stent tube are thin, making the end small and sharper, such as figure 1 As shown, this design is to facilitate the placement of the stent tube, but the structure will scrape the renal pelvis and bladder mucosa during the process of being sent into the human body and stay inside the human body, making the patient's waist and lower abdomen prone to pain and discomfort It can also easily lead to bleeding and cause hematuria

In order to improve various inconveniences caused by the existing ureteral stent tube set, the present invention provides a new ureteral stent tube set

Images