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Nanometer antibacterial urinary catheter

A urinary catheter, nanotechnology, applied in the field of medical catheters, can solve the problems of black stains on the tube wall, troublesome use, short shelf life, etc.

Inactive Publication Date: 2005-03-23
邵贤斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are new urinary catheters appearing, such as the patent ZL02224606 "surface-dosed urinary catheter", two dosing areas are made in different areas of the urinary catheter, and antibacterial drugs are added when leaving the factory and when using. It is troublesome to use, prone to secondary pollution, high requirements for dosing and packaging during production, and short shelf life; there is another technology that evaporates silver on the surface of ordinary urinary catheters. Although it has a bactericidal effect, due to surface oxidation, the shelf life is short. Sometimes it has not been used yet, and the pipe wall has begun to turn black, so it can no longer be used, and the price is high

Method used

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  • Nanometer antibacterial urinary catheter
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Embodiment Construction

[0011] Describe in detail below in conjunction with accompanying drawing:

[0012] Such as figure 1 As shown, the nanometer antibacterial urinary catheter is composed of a common base layer (1) and a surface covering layer (2). (1) be made by conventional glue; The preparation method of described surface covering layer (2) glue is to add a certain amount of nanometer metal ions plus ammonia water and then carry out ball milling and mixing of diffusion agent NAO or NF, mix in the glue and stir Accompanying, precipitating, removing bubbles to form a glue solution for use; the nanometer metal ion sterilizing and antibacterial material is nanometer metal silver or nanometer titanium; the described glue is silica gel or latex.

[0013] Production process such as figure 2 Shown: Insert the mold into the pre-prepared surface covering layer (2) and dip it in the glue solution, put it out and send it to the drying oven for drying, and insert the mold forming the inner surface layer ...

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Abstract

An antibacterial urinary catheter with nano-structure is composed of a basic catheter made of conventional rubber, and a surface layer which is prepared from nano-Ag (or nano-Ti), ammonia water, diffusing agent and silica gel (or latex). Its preparing process is also disclosed.

Description

(1) Technical field [0001] The invention relates to a medical catheter, in particular to a nano antibacterial catheter. (2) Background technology [0002] The technology identical with the present invention is not found through the latest patent search. For critically ill patients, catheters are widely used as the most common medical equipment. In order to prevent urinary retention, the urinary catheter is usually left in the body for hours, days or even dozens of days according to the patient's condition, because the catheter must be guided from the human body to the outside, and it is made of silica gel, latex and other materials Bacteria in vitro will enter the body through the tube wall to form retrograde infection. Since silica gel, latex and other materials have no anti-killing effect on bacteria and are easy to form colonies, general catheters will have bacterial contamination and reproduction within a few hours of being inserted into the body. Infection occurs. Al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/00A61M39/00
Inventor 邵贤斌
Owner 邵贤斌
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