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PVC ultra-smooth hydrophilic catheter and preparation method thereof

A urinary catheter and hydrophilic technology, which is applied to the preparation of urinary catheters and the field of urinary catheters, can solve the problems of poor lubricity of urinary catheters, large friction coefficient, damage to mucous membranes, etc. Low friction, easy and convenient insertion

Inactive Publication Date: 2016-05-25
ZHEJIANG SHUGUANG TECH
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  • Abstract
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Problems solved by technology

[0002] Urinary catheter is a product used in urology for catheterization. The existing catheter has poor lubricity and high friction coefficient. When inserted into the urethra, it is easy to cause burn-like pain to the patient, and even damage the mucous membrane and cause inflammation. , so there is an urgent need for a catheter with good lubricity

Method used

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  • PVC ultra-smooth hydrophilic catheter and preparation method thereof

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Embodiment Construction

[0025] Such as figure 1 As shown, the PVC ultra-slippery hydrophilic urinary catheter of the present invention comprises a catheter body 1, and at least one urine drainage hole 11 is arranged on the catheter body 1, and two urine drainage holes 11 are provided in the present invention, and the urinary catheter A hydrophilic coating 12 is provided on the outer wall of the pipe body 1 .

[0026] In the present invention, the hydrophilic coating 12 is formed after the coupling treatment by the coupling solution, and then dip-coated by the coating solution, wherein the proportion of the coupling solution by mass is: silane coupling agent 0.5%-5%, Absolute ethanol 60%-80%, distilled water 20%-40%; the proportion of coating solution by mass is polyvinylpyrrolidone 1%-10%, absolute ethanol 50%-70%, polyurethane 30% -50%.

[0027] In the present invention, polyvinylpyrrolidone is used as a coating material, which itself has a hydrophilic group. When contacting with an aqueous liquid...

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Abstract

The invention provides a PVC ultra-smooth hydrophilic catheter and a preparation method thereof and relates to a catheter used for short-time immediate urinary catheterization of a medical care unit or persons in a family and a preparation method of the catheter. The aim is to provide the PVC ultra-smooth hydrophilic catheter and the preparation method of the PVC ultra-smooth hydrophilic catheter, wherein the PVC ultra-smooth hydrophilic catheter is simple in structure, small in surface friction force and capable of being easily and conveniently inserted in the body of a patient and reliving pain of the patient. The PVC ultra-smooth hydrophilic catheter comprises a catheter body which is provided with at least one urine guiding hole, and a hydrophilic coating is arranged on the outer wall of the catheter body. The preparation method of the PVC ultra-smooth hydrophilic catheter includes the following steps that the catheter body is prepared; coupling treatment is performed on the surface of the PVC catheter; the surface of the PVC catheter is coated with the hydrophilic coating; packaging and sterilizing are performed.

Description

technical field [0001] The invention relates to a medical device for short-term instant catheterization for medical units or family individuals, in particular to a catheter; the invention also relates to a preparation method of the catheter. Background technique [0002] Urinary catheter is a product used in urology for catheterization. The existing catheter has poor lubricity and high friction coefficient. When inserted into the urethra, it is easy to cause burn-like pain to the patient, and even damage the mucous membrane and cause inflammation. Therefore, there is an urgent need for a catheter with good lubricity. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a PVC ultra-slippery hydrophilic urinary catheter, which has simple structure, small surface friction, easy and convenient insertion, and can relieve pain of patients. [0004] The PVC super-slippery hydrophilic urinary catheter of the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/00A61L29/08A61L29/14
CPCA61M25/0017A61L29/085A61L29/14A61M25/0009A61M25/0045
Inventor 胡巧玲张成
Owner ZHEJIANG SHUGUANG TECH
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