Nanometer antibacterial urinary catheter

Abstract

The nano antibacterial urinary catheter is composed of a common base layer and a surface covering layer, which is characterized in that the surface covering layer is made of glue mixed with nanometer metal ion bactericidal and antibacterial materials, the common base layer is made of conventional glue, and the surface covering layer glue is Quantitative nanometer metal ions, ammonia water, and diffusing agent are ball milled and mixed, mixed into the glue to stir, precipitate, and remove air bubbles to form a glue solution for use; the nanometer metal ion sterilizing and antibacterial material is nano silver or nano titanium; the glue is silica gel or Latex; the production process is to insert the mold into the prepared surface covering layer, ordinary base layer and surface covering layer glue in sequence, dip in glue, dry, demould, sterilize, and pack. Long shelf life, can inhibit the growth of colonies, sterilization and antibacterial.

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...

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

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