Light-guide optical fiber visible ureteral stent

Abstract

The invention discloses a light-guide optical fiber visible ureteral stent. The light-guide optical fiber visible ureteral stent comprises a stent body, an optical fiber machine, an optical fiber coupling head, a zebra urological guidewire, light-guide fibers, a plurality of side holes, a plurality of identification lines, first pipe cavities, second pipe cavities and a boosting pipe, wherein theoptical fiber machine is arranged at one end of the stent body, the identification lines are arranged on the outer side of the stent body, the side holes are formed in the outer side of the stent body, the optical fiber coupling head is arranged at one end of the optical fiber machine, the boosting pipe is connected to one end of the stent body in a sleeving mode, and the first pipe cavities are separately formed in the top of the inner wall of the stent body and the top of the inner wall of the boosting pipe. The light-guide optical fiber visible ureteral stent is convenient to use, the stentbody is made of organic silicon and polyurethane, scaling is reduced, the pipe wall of the stent body is transparent, soft, high in elasticity and free of toxicity, the surface and the pipe cavitiesof the stent body are smooth, and a hydrophilic coating is attached to the surface and the pipe cavities of the stent body; and the number of the side holes is large, the ureteral stent is prevented from being blocked, drainage is not smooth, two ends are open, the two ends of the openings can be bent, and the ureteral stent cannot move up and down after being placed at a corresponding position.

Description

technical field [0001] The invention relates to the technical field of ureteral stents, in particular to a light-guiding optical fiber visible ureteral stent. Background technique [0002] Most of the ureteral injuries are iatrogenic injuries, which are prone to serious consequences if not handled properly; most of the iatrogenic ureteral injuries during surgery are due to the fact that the ureter is close to the vascular structures and other organs of the abdomen and pelvis, and is located in the retroperitoneal wall. It is difficult to identify the ureter in the middle, and the resulting ureteral injury. If early avoidance, early detection, and timely treatment can achieve good results; types of ureteral injury include direct injury, transection, ligation, compression, etc., and indirect injury, ischemia and thermal injury; gynecological surgery accounts for the majority of ureteral injury, accounting for 64% –82%, while colorectal, vascular-pelvic, and urological procedu...

AI Technical Summary

Problems solved by technology

[0002] Most ureteral injuries are iatrogenic injuries, which are prone to serious consequences if not handled properly; iatrogenic ureteral injuries during surgery are mostly due to the fact that the ureter is close to the vascular structures and other organs of the abdomen and pelvis, and is located in the retroperitoneal wall, so during the operation It is difficult to identify the ureter in the

Good results can be achieved if early avoidance, early detection, and timely treatment are possible; types of ureteral injuries include direct injury, transection, ligation, compression, etc., and indirect injury, ischemia, and thermal injury; gynecological surgery accounts for the majority of ureteral injuries, accounting for 64% –82%, while colorectal, vascular pelvic, and urological procedures account for about 15%–26% and 11%–30%, respectively; the distal third of the ureter is a frequently injured site, while the middle and proximal thirds One is rarely affected; most of the current studies to avoid ureteral injury mainly include intraoperative placement of ureteral stents and intraoperative use of various contrast agents, such as methylene blue, fluorescein, indocyanine green, IR800ZW, ZW800-1 and CW800-CA, and visualize the ureter during surgery under visible light and near-infrared light; however, the ureteral stent placed can only be sensed by touch, and the contrast agent is easily affected by metabolism and ureteral peristalsis; in view of these defects, a Light-guiding fiber optic visible ureteral stent is necessary

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