Coaxial sleeve tube type water circulation quick calculus removal device used after flexible ureteroscope lithotripsy

Abstract

The invention discloses a coaxial sleeve tube type water circulation quick calculus removal device used after flexible ureteroscope lithotripsy. The device comprises a coaxial sleeve tube and a pushing rod (8) for pushing the coaxial sleeve tube to a ureteropelvic junction, wherein the coaxial sleeve tube comprises a water-filling catheter (5) and a drainage catheter (4) arranged in the water-filling catheter (5); a closed structure (7) is arranged at the joint of the water-filling catheter (5) and the front end of the drainage catheter (4); a plurality of water outlets (6) are formed in the side wall of the front end of the water-filling catheter (5); and a water-filling tube (2) and a decompressor (3) are connected to the side wall of the back end of the water-filling catheter (5). According to the device, the first-stage calculus removal efficiency is improved, the operative time is shortened, and the indications of the flexible ureteroscope holmium laser lithotripsy are expanded.

Description

technical field [0001] The invention relates to a postoperative stone removal device, in particular to a coaxial casing type water circulation rapid stone removal device after flexible ureteroscopic lithotripsy, and belongs to the technical field of postoperative stone removal devices. Background technique [0002] At present, urinary calculus is a common and frequently-occurring disease in urology. According to statistics, about 5%-15% of people in the world suffer from urinary calculi. With the continuous development of endoscopic technology and the continuous improvement of lithotripsy equipment and stone removal tools, the treatment of urinary calculi has undergone revolutionary changes, and traditional open surgery has gradually been replaced by minimally invasive treatment methods represented by endoscopic surgery. Instead, percutaneous nephroscopic holmium laser lithotripsy and flexible ureteroscopy are mainly used for the treatment of kidney stones. [0003] Among t...

AI Technical Summary

Problems solved by technology

However, for inferior calyceal calculus and complex renal calculi with a diameter of more than 2 cm, due to the limitation of the anatomical structure of the ureter, after flexible ureteroscopy and holmium laser lithotripsy, the stones are not easy to be discharged, and it is easy to form a "stone street" in the ureter

[0005] Compared with percutaneous nephrolithotomy and holmium laser lithotripsy, flexible ureteroscopy in the treatment of kidney stones has a lower primary stone clearance rate, and residual stones are likely to cause recurrence of kidney stones

In addition, most of the existing flexible ureteroscope holmium laser lithotripsy adopts the "worm-eating method" to crush the stones into powder, so that they can be easily discharged through the ureter, but the efficiency of lithotripsy is low, the operation time is long, and the incidence of infection is high

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