A device for stone washing and decompression in ureteroscopic lithotripsy

Abstract

The invention discloses a device for calculus irrigation and decompression in ureteroscope lithotripsy. The device comprises a ureteral sheath for constructing an operation channel and a bladder sheath for constructing a decompression channel, wherein a first gap is left between the ureteral sheath and the ureteroscope; and a second gap is left between the ureteral sheath and the ureteroscope. A bladder sheath is arranged outside the ureteral sheath, and the bladder sheath and the ureteral sheath can be slidably and fixedly connected, At that end of the bladder sheath extend into the bladder,One end of the conical tube with a larger outer diameter is connected with the bladder sheath, the inner diameter of the smaller end of the conical tube is adapted to the outer diameter of the ureteral sheath, a through hole penetrating through the wall of the conical tube is arranged on the outer side wall, and a second gap is left between the inner side wall of the bladder sheath and the outer side wall of the ureteral sheath for returning liquid. The device can facilitate the access of the ureteroscope by establishing a fixed operation channel, facilitate the flushing out of the crushed calculus, smooth the fluid return and the decompression of the renal pelvis and bladder.

Description

technical field [0001] The invention relates to the technical field of medical supplies, more specifically, it relates to a device for stone flushing and decompression in ureteroscopic lithotripsy. Background technique [0002] In the clinical treatment of calculi in the middle and lower ureters, ureteroscopy is the first choice for lithotripsy. However, problems such as unclear intraoperative vision, ureteral injury, postoperative infection, ureteral stenosis, need to decompress the bladder, and poor flushing may still be encountered during the operation. Especially for large and hard stones, the operation time is long and there are more surgical complications. [0003] When using a flexible ureteroscope to treat upper ureter and kidney stones, a ureteral guide sheath is introduced during the operation to establish a surgical access to assist the flexible mirror and other instruments to enter the urinary tract and provide a continuous operation channel, thereby facilitatin...

AI Technical Summary

Problems solved by technology

However, problems such as poor visual field during operation, ureteral injury, postoperative infection, ureteral stenosis, need to decompress the bladder, poor flushing, etc. may still be encountered during the operation.

Especially for large and hard stones, the operation time is long and there are more surgical complications

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