Ureteroscope capable of achieving water circulation

Abstract

The invention discloses an ureteroscope capable of achieving water circulation, and relates to the technical field of medical instruments. The ureteroscope comprises an outer endoscope tube, an innerendoscope tube, an optical fiber and an operation through tube. A water inlet through pipe and a water outlet through pipe are arranged; the water inlet through pipe and the water outlet through pipeare independent channels, and the diameter of the water outlet through pipe is larger than that of the water inlet through pipe, so water flow circulation can be formed in a surgical zone, thus maintaining the surgical zone in a low pressure state, and preventing the risk of renal pelvis high pressure; meanwhile, a ureter in front of the endoscope body is expanded during water injection and the surgical field view is exposed, thus reducing surgical zone temperature, and the safety of the device is ensured; the water inlet through pipe and the water outlet through pipe are arranged in a relatively inclined manner, and are beneficial to water inflow and timely smooth suction of lithotripsy particles, thus ensuring lithotripsy efficiency, and solving the problems that when a water injection channel and an operation channel of the ureteroscope are shared, water circulation cannot be formed, large-size calculi cannot perform holmium laser lithotripsy, lithotripsy particle accumulation cannot be removed in time, surgical view is affected, and lithotripsy efficiency is affected.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a water-circulating ureteroscope. Background technique [0002] Ureteroscopic holmium laser lithotripsy is a minimally invasive surgery that is widely used in clinical practice. For the functions of water, water outlet, and the insertion of operating equipment, a single channel cannot perform water circulation, and water cannot be discharged at the same time: [0003] The currently used ureteroscopes share the water injection channel with the operating channel, which cannot form a water cycle. The calculus powder generated during the lithotripsy process and the bleeding from the wound surface make the surgical field of view blurred and unclear. It is necessary to repeatedly adjust the water inlet and outlet to maintain the field of vision. Clear, affecting the surgical operation, and large stones undergo holmium laser lithotripsy, the accumulation of gravel particles can...

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Problems solved by technology

[0004] The invention provides a water-circulating ureteroscope, which has an independent channel for water injection and operation design, can form a water circulation in the operation area, maintain a low-pressure state in the operation area, avoid the risk of high pressure in the renal pelvis, and facilitate the smooth suction of gravel particles, so as to solve the currently used ureteroscope. Ureteroscopes are shared by the water injection channel and the operation channel, which cannot form a water cycle. It is necessary to repeatedly adjust the water inlet and outlet to maintain a clear view, which affects the surgical operation and large stones undergo holmium laser lithotripsy, and the accumulation of gravel particles cannot be removed in time Problems that affect the surgical field of view and affect the efficiency of lithotripsy

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