Wetting component for hydrophilic urinary catheter

Abstract

The invention discloses a wetting component for a hydrophilic urinary catheter, which comprises a wetting liquid container, a hydrophilic urinary catheter and an outer cannula; the hydrophilic coating of part of the urinary catheter, or the hydrophilic coating of all of the hydrophilic urinary catheter is sleeved with the outer cannula; an outlet which can switch from close state to open state is formed in the wetting liquid container; and the outlet of the wetting liquid container is communicated with the outer cannula through liquid. The wetting component for the hydrophilic urinary catheter is characterized in that the far-end port of the outer cannula is closed; and the gap between the inner wall of the outer cannula and the hydrophilic coating of the outer wall the hydrophilic urinary catheter is not higher than 2.0 mm. The wetting component for the hydrophilic urinary catheter can reduce the consumption of wetting liquid, shorten the wetting waiting time, lower the probability of sticking of the surface hydrophilic coating and the package, and reduce overflow of the wetting liquid.

Description

[0001] technical field [0002] The invention relates to a medical appliance, in particular to a wetting component of a hydrophilic catheter. Background technique [0003] In patients with urinary system stenosis or damage and paralysis, intermittent self-insertion catheters are widely used for catheterization, so that patients can carry out their daily life and work normally. Intermittent self-insertion urinary catheters usually need to be coated with a lubricating substance on the surface of the insertion section, so as to achieve surface lubrication and a lower friction coefficient of the catheter insertion section, and improve comfort during insertion into the urethra. There are currently two different methods on the market to achieve surface lubrication of the insertion part of the urinary catheter. [0004] One: apply a lubricant on the surface of the insertion section of the urinary catheter. The lubricant and the surface of the catheter are attached in the form o...

AI Technical Summary

Problems solved by technology

Compared with the first method, the second method reduces the cost of packaging materials and reduces the risk of environmental pollution caused by wetting liquid overflow, but there are still some shortcomings in actual conditions. For example, in order to soak the wetting liquid to the entire catheter The insertable section still requires a large amount of wetting fluid. Although there are currently methods to reduce the demand for wetting fluid by narrowing the size of the packaging cavity of the insertable section of the urinary catheter, the effect of reducing the wetting fluid is not obvious , and it is easy to cause the surface of the catheter to stick to the packaging bag and it is difficult to pull out; for another example, the insertion section of the hydrophilic catheter is soaked in the wetting solution for a certain period of time, which prolongs the waiting time for the operation, and the patient cannot be used quickly in an emergency , causing a certain degree of inconvenience

With regard to the second method of wetting the hydrophilic catheter tube, there is a large amount of wetting liquid, waiting for the operation, easy to cause adhesion between the coating surface and the package, and overflow of the wetting liquid. The present invention provides a A wetting implementation scheme for a hydrophilic catheter tube, which avoids the above-mentioned shortcomings and can effectively wet the hydrophilic coating lubricating catheter

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