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Novel anti-blocking negative pressure catheter

A urinary catheter, a new type of technology, applied in the field of medical devices, can solve problems affecting the normal function of the bladder and sphincter, life impact, urinary dysfunction and other issues

Pending Publication Date: 2022-04-12
SHANDONG BRANDEN MEDICAL DEVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the patient inserts the urinary catheter, the balloon will press the catheter when it is inflated, causing the catheter to be blocked or even folded, requiring re-intubation, which brings pain to the patient; the catheter is inserted into the human bladder, once there is urine in the bladder , the urine will be automatically excreted through the catheter. Long-term insertion of the catheter will affect the normal function of the bladder and sphincter. have a big impact on life

Method used

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  • Novel anti-blocking negative pressure catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: figure 1 It is a structural schematic diagram of the present invention, including catheter inner port 1, catheter hole 2, inflatable balloon 3, catheter body 4, outer balloon tube 5, outer balloon 6, inflatable tube 7, inflatable mouth 8, one-way Valve 9, catheter external interface 10, flushing tube interface 11, flushing tube 12, flushing tube outlet 13, the present invention has the functions of being washable, easy for balloon positioning, anti-blocking, and isolating the external environment, and can effectively solve the problem of patient pulling Urinary incontinence after catheterization.

Embodiment 2

[0019] Example 2: figure 2 It is a sectional view of the lower end of the balloon 3. The ball 14 is made of polytetrafluoroethylene, which has certain corrosion resistance. The surface of the ball 14 is sprayed with a silver ion deodorizing and antibacterial water-based polyurethane coating. The antibacterial coating is made of diphenyl Methyl methane diisocyanate, polyester diol, trimethylol propane, 1,4 butanediol, hydroxyethyl acrylate silica sol, antibacterial agent, silver ion agent, purified water, etc. The coating has high hardness and has Strong water resistance, wear resistance, anti-corrosion, using silver ions for deodorization and sterilization, has good antibacterial ability, and will not have side effects on the human body.

Embodiment 3

[0020] Embodiment 3: refer to figure 2 , after the conventional urinary catheter balloon is inflated, it is easy to compress the catheter tube body, causing blockage or folding, and the catheter needs to be reinserted, which brings pain to the patient. The anti-blocking ball 14 is fixed on the catheter at the lower end of the balloon In the tube body 4, the ball 14 is distributed with interconnected drain holes 15. When the balloon is inflated, urine flows into the catheter through the drain holes 15, which effectively solves the problem of catheter blockage.

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Abstract

The invention provides a novel anti-blocking negative-pressure catheter. The novel anti-blocking negative-pressure catheter comprises an inflation balloon, a catheter body, a catheterization hole, an outer air bag tube, an outer air bag, an inflation tube, an inflation nozzle, a one-way valve, a catheter outer connector, a flushing tube connector, a flushing tube, a flushing tube outlet and a ball. The anti-blocking ball is located in the portion, below the catheter sacculus, of the catheter body, liquid drainage holes which are communicated with one another are distributed in the ball, when the sacculus is inflated and swelled, urine flows into the catheter through the liquid drainage holes, and the problem that the catheter is blocked after the sacculus is inflated is solved. When the pressure of the front end of the one-way valve is larger than the bladder pressure 3.96 kPa (40cm H2O), urine pushes a valve element of the one-way valve and flows out through a notch around the valve element, when the pressure is insufficient, the one-way valve is closed, continuous urination of a patient is avoided, and meanwhile external bacteria are prevented from entering the human body, and the one-way valve is simple in structure, low in cost, safe to use and convenient to produce in a large scale.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a novel anti-clogging and negative pressure urinary catheter. Background technique [0002] Urinary catheter is a commonly used insertable medical device, which is widely used in anesthesia surgery, postoperative bed rest rehabilitation, movement unchanged and unable to urinate spontaneously, urination disorders, difficulties, etc. The invention of urinary catheters appears to a large extent Alleviate the suffering of patients. After the patient inserts the urinary catheter, the balloon will press the catheter when it is inflated, causing the catheter to be blocked or even folded, requiring re-intubation, which brings pain to the patient; the catheter is inserted into the human bladder, once there is urine in the bladder , the urine will be automatically excreted through the catheter. Long-term insertion of the catheter will affect the normal function of the bladder and sphincte...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61M3/02
Inventor 张海军董硕袁坤山赵彦伟王卫刘凯
Owner SHANDONG BRANDEN MEDICAL DEVICE
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