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Urethral catheterization apparatus for preventing adhesion of bacteria

A urine device and bacteria technology, applied in the field of medical devices, can solve the problems of inability to effectively prevent the biofilm formation of urinary catheters, and achieve the effects of avoiding the adhesion of planktonic bacteria, simple structure, and easy installation

Active Publication Date: 2018-07-31
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above methods still cannot effectively prevent the formation of biofilm on the catheter, that is, prevent the adhesion of planktonic bacteria on the catheter

Method used

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  • Urethral catheterization apparatus for preventing adhesion of bacteria
  • Urethral catheterization apparatus for preventing adhesion of bacteria
  • Urethral catheterization apparatus for preventing adhesion of bacteria

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the embodiment of the present invention provides a urinary catheter for preventing bacteria from adhering. Unit 5 and control unit 4; the top of the urinary catheter 1 is provided with a urine inlet 1-1, and the bottom end communicates with the first manifold 3; the flexible hose 2 is inserted in the urinary catheter 1, and the flexible hose 2 The top end is connected with the fixed unit, the bottom end communicates with the liquid supply unit 5, and the flexible hose 2 is provided with a plurality of first microholes 2-1 along the length direction of the flexible hose 2; the vibration unit is arranged on the fixed unit, and the fixed unit It is used to fix the vibrating unit at the specified position in the urinary catheter 1, that is to say, the fixing unit is used to fix the vibrating unit at the specified position in the urinary catheter 1 and make it close to the urinary catheter 1 The inner wall; the control unit 4 is electrically conne...

Embodiment 2

[0038] Such as image 3 with Figure 4 As shown, the structure and principle of the catheterization device for preventing bacterial adhesion in this embodiment are the same as those in Embodiment 1, and will not be repeated in this embodiment.

[0039] The difference is that the fixed unit in this embodiment includes a telescopic rod 10, a telescopic driver and a pressing member. The lower part of the telescopic rod 10 is slidably inserted into the flexible hose 2, and the upper part is provided with a plurality of resisting parts in the circumferential direction; each A resisting member includes a spacer 11-3, a first connecting rod 11-1 and a second connecting rod 11-2 above the first connecting rod 11-1, and the first end of the first connecting rod 11-1 is connected to the telescopic The rod 10 is slidably and rotatably connected, the second end is rotatably connected to the bottom surface of the pad 11-3, the first end and the second end of the second connecting rod 11-2...

Embodiment 3

[0044] Such as Figure 5 with Image 6 As shown, the structure and principle of the catheterization device for preventing bacterial adhesion in this embodiment are the same as those in Embodiment 1, and will not be repeated in this embodiment.

[0045] The difference is that, in this embodiment, the fixed part includes a lifting drive part, a fixed cover 14 and a fixed bolt 13 connected to the flexible hose 2, the upper movable cover of the fixed bolt 13 is provided with a fixed cover 14, and the vibration unit is sleeved on the fixed The bottom of the bolt 13; the top of the fixed bolt 13 is provided with a plurality of grooves 13-1 in the circumferential direction, the grooves 13-1 are inserted with a positioning pin 13-2, and the top of the positioning pin 13-2 is arranged on the fixed cover On the inner wall of 14, between the bottom end and the groove 13-1, a spring 13-3 is provided for compression; the circumferential direction of the fixed cover 14 is provided with a p...

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Abstract

The invention relates to the technical field of medical appliances and provides a urethral catheterization apparatus for preventing adhesion of bacteria. The urethral catheterization apparatus comprises a catheter, a flexible hose, a first manifold, a vibration unit, a fixing unit, a liquid supply unit and a control unit; the top end of the catheter is provided with a urine inlet and the bottom end is communicated with the first manifold; the flexible hose is inserted into the catheter. The top end of the flexible hose is connected with the fixing unit and the bottom end is communicated with the liquid supply unit. The flexible hose is provided with a plurality of first micro-pores along the length direction of the flexible hose; the vibration unit is arranged on the fixing unit. The fixing unit is used to clip the vibration unit to a specified position in the catheter. The control unit is electrically connected with the vibration unit and the liquid supply unit separately. The apparatus can effectively prevent the adherence of the planktonic bacteria on the catheter, inhibit the growth of bacteria on the catheter and prevent the formation of bacterial biofilm on the catheter fromthe source.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a urinary catheter for preventing bacteria from adhering. Background technique [0002] With the advancement of medical technology, more and more treatments require the use of indwelling medical devices in the body. For example, medical catheters such as tracheal catheters, arteriovenous catheters, gastric tubes, peritoneal dialysis catheters, and urinary catheters. Although these medical catheters solve many clinical problems, because they need to stay in the human body for a long time, they are easy to breed bacteria, which in turn leads to stubborn bacterial biofilm infections that are difficult to remove with general antibiotics. Among them, bacterial biofilm refers to the continuous accumulation, growth and division of planktonic bacteria attached to the surface of inert or active materials, and finally forms a highly organized and systematic microbial membrane aggr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/00
CPCA61M1/0058A61M2210/1089A61M2210/1085A61M1/85Y02A50/30
Inventor 袁松梅林芳菲贾一剑韩文亮
Owner BEIHANG UNIV
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