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Anti-reflux double-J tube

A pipe body and elbow technology, applied in the field of anti-reflux double J pipes, can solve the problems of small anti-reflux effect of double J pipes, and achieve the effects of good anti-reflux effect, simple manufacturing process and easy realization.

Pending Publication Date: 2021-07-09
佑成(杭州)医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, the purpose of the present invention is to provide an anti-reflux double J tube to solve the technical problem that the anti-reflux effect of the double J tube in the prior art is small

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Figure 1-4 It is an anti-reflux double J tube in Embodiment 1 of the present invention, which includes a tube body 1, elastic bends 2 are connected to both ends of the tube body 1, and first through holes 3 are uniformly arranged on the surface of two groups of elastic bends 2 The outer side of a group of elastic elbows 2 is provided with an elastic film 4 matching it. The elastic film 4 can also be flexible and inelastic. One end of the elastic film 4 and one end of the pipe body 1 are adhered and fixed by hot-melt pressure-sensitive adhesive, and The length of the adhesion between the elastic film 4 and the tube body 1 is 0.3cm-0.5cm. The elastic film 4 has a tubular structure as a whole. Sensitive glue is a raw material for processing and manufacturing various medical products, medical materials and sanitary products. The elastic membrane 4 is provided with a cavity 5 matching the elastic elbow 2 inside, and the surface of the elastic membrane 4 is provided with a c...

Embodiment 2

[0028] Figure 5 It is an anti-reflux double J tube in Embodiment 2 of the present invention. Embodiment 2 is an alternative solution based on Embodiment 1. The improvement is that the second through hole 6 of the elastic membrane 4 is arranged at the center of its end location, such as Figure 5 shown.

[0029] Both ends of the pipe body 1 are connected with elastic bends 2, the surfaces of two groups of elastic bends 2 are uniformly provided with first through holes 3, and the outside of one set of elastic bends 2 is provided with an elastic film 4 matching it, and the elastic film 4 is also It can be flexible and inelastic. One end of the elastic film 4 and one end of the tube body 1 are adhered and fixed by hot-melt pressure-sensitive adhesive, and the length of the adhesion between the elastic film 4 and the tube body 1 is 0.3cm-0.5cm. The elastic film 4 The whole has a tubular structure, and the elastic film 4 and the tube body 1 are bonded by using hot-melt pressure-s...

Embodiment 3

[0034] Figure 6-7 It is an anti-reflux double J tube in the third embodiment of the present invention. The third embodiment is an alternative solution based on the first embodiment. The improvement is that rectangular through holes 8 are provided at the four corners of the surface of the tube body 1, and Structures that do not have an elastic membrane 4, such as Figure 6-7 shown.

[0035]The four corners of the surface of the pipe body 1 are provided with rectangular through-holes 8 , both ends of the pipe body 1 are connected with elastic bends 2 , and the surfaces of two groups of elastic bends 2 are uniformly provided with first through-holes 3 . The double J tube of the present invention is placed sequentially through the urethra, bladder, ureter and renal pelvis. Under the action of elasticity, the elastic elbow 2 is coiled and placed inside the renal pelvis to play the role of fixed support, and the tube body 1 is placed inside the ureter;

[0036] When the internal ...

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Abstract

The invention discloses an anti-reflux double-J tube, and relates to the technical field of medical instruments. The anti-reflux double-J tube comprises a tube body, the two ends of the tube body are connected with elastic bent tubes, the surfaces of the two groups of elastic bent tubes are uniformly provided with first through holes, and the outer side of one group of elastic bent tubes is provided with an elastic film matched with the elastic bent tubes. When the internal pressure of the renal pelvis is higher than the internal pressure of the bladder, urine enters the first through holes from the renal pelvis, a certain gap exists between the elastic film and the elastic bent tubes, the urine can conveniently flow into the bladder through second through holes and the first through holes, when the internal pressure of the renal pelvis is lower than the internal pressure of the bladder, the internal pressure of the bladder is large, the elastic film is tightly attached to the outer surface of the elastic bent tubes, so that urine cannot flow back to the interior of the renal pelvis through the second through holes of the elastic film and the first through holes of the elastic bent tubes, and the situation that the urine in the bladder flows back to the interior of the renal pelvis under the condition that the pressure of the urine is too high is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an anti-reflux double J tube. Background technique [0002] Double J tube (pig tail catheter), absorbable thermoplastic elastomer to make ureteral stent tube, replace the non-absorbable stent tube commonly used in clinical practice, avoid secondary operation pullout, and reduce patient pain is the innovation of this project in the field of urological surgery Ureteral stent (double pigtail catheter, or D-J tube) is widely used in urological surgery, suitable for upper urinary tract operations such as kidney stones, ureteral stones, hydronephrosis, kidney transplantation, benign tumors of the kidney and ureter, and crushing During the treatment of lithotripsy and dilation of ureteral stricture, it can play an important role in drainage of urine and prevent ureteral stricture and adhesion blockage after it is implanted in the ureter. [0003] In the prior art, the functio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00
CPCA61M25/0021A61M25/0043A61M25/007A61M2025/0008
Inventor 孔咪咪
Owner 佑成(杭州)医疗器械有限公司
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