Urinary system stone taking device

A technique for the urinary system and ureter, which is applied in the field of urological lithotripsy devices, and can solve the problems of inability to support the ureter, limited stones to be taken out, and stones falling off.

Inactive Publication Date: 2008-08-27
北京望升伟业科技发展有限公司
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  • Abstract
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Problems solved by technology

[0002] Urinary system calculus is a common disease and frequently-occurring disease in urology. At present, the main treatment methods are extracorporeal shock wave lithotripsy and ureteroscopic lithotripsy. The crushed stones are not easy to discharge naturally. The existing stone removal device only has a stone basket , the stones taken out are limited, repeated operations will increase the pain of the patient, and the stones often fall off after being trapped, and cannot support the ureter

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Embodiment Construction

[0010] The invention consists of a tube made of a medical polymer material. The two ends of the tube are bent inwards in opposite directions to form a circle, which is shaped like a pig's tail. There are several side holes on the wall of the tube at both ends bent into a circle. No 1, the middle section of the tube has a beaded enlarged small basket 2, the lower end of the tube has a ureteral bladder marking point 3, the upper end of the tube has a kidney marking point 4, and the uppermost end of the tube is a tapered tubular shape 5; the tube of the tube The diameter is 2.2-2.8mm, and the length is 190-290mm; there are 3-5 side holes on the tube wall at both ends bent into a circle, with a diameter of 0.1-0.8mm; there are 10-20 beaded enlarged small tubes in the middle of the tube. The basket is made of four openings on the surrounding wall of the pipe. Its diameter is 3-6mm in normal state, and its length is 7-10mm. In the expanded state, its diameter is 7-10mm, and its lengt...

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Abstract

The invention discloses a stone removing device for urinary system, which is composed of a pipe made of high molecular materials, wherein the two ends of the pipe are inwardly bent in opposite direction to obtain a circular shape like pig tail, the wall of the two ends of the pipe is opened with 3-5 side holes of diameter 0.1-0.8mm, and the middle section of the pipe is provided with 10-20 small pinch-and-swell form baskets that are formed by opening four openings on the surrounding wall of the pipe with equal intervals. The lower end of the pipe is provided with a ureter bladder marking point, the upper end of the pipe is provided with a kidney marking point, and the top of the pipe is in the shape of tapered tube with gradually decreased diameter. Because of the special small retractable pinch-and-swell form baskets, the stone removing success ratio is remarkably improved compared with the prior stone pinching baskets, and the detachment of pinched stone is avoided. The inventive pinch-and-swell structure takes good supporting effect to the ureter, so that the ureter may not be stopped by stones, and the urine in the kidney can smoothly reach bladder.

Description

technical field [0001] The invention belongs to auxiliary materials for surgical operations, in particular to a stone removal device for urology. Background technique [0002] Urinary system calculus is a common disease and frequently-occurring disease in urology. At present, the main treatment methods are extracorporeal shock wave lithotripsy and ureteroscopic lithotripsy. The crushed stones are not easy to discharge naturally. The existing stone removal device only has a stone basket , the stones taken out are limited, repeated operations will increase the pain of the patient, and the stones often fall off after being trapped, and they cannot support the ureter. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned shortcomings and provide a urinary system stone removal device which is easy to operate, has a high stone removal success rate and can support the ureter. [0004] In order to achieve the above object, the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/221
Inventor 周明非朱望李娅曹庆民赵秀丽邢玉斌魏华
Owner 北京望升伟业科技发展有限公司
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