Ureter internal drainage device

A technology of internal drainage and ureter, which is applied in the direction of catheter, balloon catheter, dilator, etc., and can solve the problems of easily scratching the bladder and ureteral mucosa

Inactive Publication Date: 2020-07-17
AFFILIATED ZHONGSHAN HOSPITAL OF DALIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the extraction process of the stent, the loop at the head end is pulled into an arc shape, which is easy to scratch the bladder and ureter mucosa during the removal process

Method used

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Experimental program
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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] The present invention comprises an outer casing 1, a drainage tube 2, a propeller 3 and an inner casing 4, the outer casing 1 has a length of 80cm, an outer diameter of 24Fr, and an inner diameter of 23Fr; the length of the drainage tube 2 is 40cm, an outer diameter of 22Fr, and an inner diameter of 20Fr; the length of the propeller 3 120cm, outer diameter 22Fr, inner diameter 20Fr; inner casing 4 is 160cm long, outer diameter 19Fr, inner diameter 17Fr. Wherein, the outer sleeve 1, the propeller 3 and the inner sleeve 4 are single-channel tubes; the drainage tube 2 includes a head 5, a body 6 and a tail 7, and the spherical head 5 and tail 7 on the drainage tube 2 are formed by an arc. The outer side of the arc-shaped tube wall has dot-like protrusions, 5 balloons in the head with a diameter of 1.5cm, and 7 balloons in the tail...

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Abstract

The invention relates to a ureter internal drainage device, and belongs to the technical field of medical appliance manufacturing. The ureter internal drainage device comprises a head part, a body part and a tail part, wherein the head part and the tail part are spherical; the drainage pipe and the propeller sleeve the inner sleeve; and the outer sleeve sleeves the drainage pipe and the propeller.The ureter internal drainage device has the beneficial effects that displacement can be prevented, stimulation to the renal pelvis and the bladder is small, and no damage is caused.

Description

technical field [0001] The invention belongs to the technical field of medical device manufacturing, and relates to a drainage device in the ureter. Background technique [0002] Ureteral stent is a catheter placed in the ureter for drainage of urine and prevention of ureteral stenosis, etc. Clinical practice has proved that the double J tube has the dual functions of internal stent and drainage, which can effectively relieve upper urinary tract obstruction and protect kidney function. Ureteral stents are widely used in the treatment of diseases of the urinary system. [0003] The head end of the double J tube is placed in the renal pelvis, and the tail end is in the bladder. The two ends form a loop. The two ends of the stent often compress the inner wall of the renal pelvis, causing pyelonephritis. During the extraction process of the stent, the loop at the head end is pulled into an arc shape, which is easy to scratch the bladder and ureter mucosa during the extraction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61M29/04
CPCA61M25/0043A61M25/0068A61M25/1011A61M29/02A61M2210/1078A61M2210/005
Inventor 宋玲玲张诚
Owner AFFILIATED ZHONGSHAN HOSPITAL OF DALIAN UNIV
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