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Far-end positioning anti-backflow antibacterial ureteral stent tube

A technology of ureteral stent tube and ureter, which is applied in the field of medical devices, can solve the problems of urine reflux and urination pressure, and achieve the effects of reducing reflux rate, reducing the use of antibiotics, and enhancing peristalsis

Pending Publication Date: 2022-02-11
SUN YAT SEN MEMORIAL HOSPITAL SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Based on this, it is necessary to address the existing technical problems and provide a distally positioned anti-reflux antibacterial ureteral stent tube, which solves the problem of urine reflux and urination in different patients through a one-way tube that can adjust the pressure required for opening and closing. stress problem

Method used

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  • Far-end positioning anti-backflow antibacterial ureteral stent tube
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  • Far-end positioning anti-backflow antibacterial ureteral stent tube

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Embodiment Construction

[0037] In order to further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] Such as figure 2 Shown:

[0039] A distally positioned anti-reflux antibacterial ureteral stent tube, comprising a hollow catheter and a one-way drainage member 2, the hollow catheter is made of flexible material, the hollow catheter can be expanded radially, and the hollow catheter includes renal pelvis segment 1a, ureter Section 1b and bladder section 1c, the one-way drainage element 2 is arranged in the bladder section 1c, the one-way drainage element 2 includes a one-way opening, and when the internal pressure of the ureter section 1b is greater than the pressure at the outer end of the bladder section 1c, the one-way opening opens , when the internal pressure of the ureteral segment 1b is...

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Abstract

The invention relates to the technical field of medical instruments, in particular to a far-end-positioned anti-reflux antibacterial ureter stent tube. The stent tube comprises a hollow catheter and a one-way drainage piece; the hollow catheter is made of flexible materials and can expand in the radial direction of the hollow catheter, and the hollow catheter comprises a pelvis section, a ureter section and a bladder section which are sequentially communicated; the one-way drainage piece is arranged in the bladder section and comprises a one-way opening; when the internal pressure of the ureter section is greater than the pressure of the outer end of the bladder section, the one-way opening is opened; when the internal pressure of the ureter section is less than the pressure of the outer end of the bladder section, the one-way opening is closed, and the pressure needed for opening the one-way opening of the one-way drainage piece is adjustable. By means of the one-way drainage piece capable of guiding urine in the pelvis area to flow towards the bladder area in a one-way mode, the problem of urine backflow is solved, the pressure of the one-way drainage piece for opening the one-way opening can be adjusted according to urination pressure of different patients, filling stimulation is generated on the pelvis area and a ureter cone, creeping of the ureter is obviously enhanced, and the urine backflow rate is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a distally positioned anti-reflux antibacterial ureteral stent tube. Background technique [0002] In clinical medicine, ureteral stenosis refers to the narrowing of the ureteral lumen due to various reasons. Although the continuity of the lumen has not been interrupted, it has caused varying degrees of upper urinary tract obstruction and hydronephrosis. In addition to congenital causes, inflammation, injury and surgical scars are the main causes. One of the methods to treat the ureter is to place an internal stent at the stenosis of the ureter. The existing technology is mainly to implant a guide wire into the ureter through a cystoscope or ureteroscope, and push the double "J"-shaped ureteral stent along the guide wire. , the upper end of which is placed in the lower end of the renal pelvis and placed in the bladder. The ureteral stent is one of the commonly used tools...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/82A61M25/10A61M39/24
CPCA61F2/82A61M25/10A61M39/24A61M2039/242
Inventor 黄海
Owner SUN YAT SEN MEMORIAL HOSPITAL SUN YAT SEN UNIV
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