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

A flexible ureteroscope and cannula-type technology, which can be used in surgery, infusion sets, medical science, etc., can solve the problems of difficult discharge of stones, recurrence of kidney stones, and long operation time, so as to prevent ureteral obstruction, relieve worries, and simple operation Effect

Inactive Publication Date: 2016-05-11
吴娟
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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

Method used

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

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] Such as Figure 1 to Figure 3 As shown, a coaxial sleeve type water circulation rapid stone removal device after soft ureteroscopic lithotripsy includes a coaxial sleeve and a push rod 8 that sends the coaxial sleeve to the transition part of the renal pelvis and ureter. The shaft sleeve is used as the water injection conduit 5 of the coaxial casing outer tube and the drainage conduit 4 as the inner tube. The connection between the water injection conduit 5 and the drainage conduit 4 front end is a closed structure 7; A water outlet hole 6 is connected to the water injection pipe 2 and the decompression device 3 on the side wall of the rear end of the water injection conduit 5 .

[0017] Wherein, the push rod 7 is a tube-like rod-like structure with a semi-elliptical front end.

[0018] The diameter of the drainage conduit 4 is 3-3.7mm...

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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...

Claims

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Application Information

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IPC IPC(8): A61B17/22A61M1/00A61M3/02
CPCA61M1/0058A61B17/22A61B2017/22038A61B2017/22082A61M3/0254A61M3/0208A61M1/84A61M1/85
Inventor 吴娟徐新建陈万钵徐浩季文斌滕飞朱芮
Owner 吴娟
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