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Nanometer silver antibacterial biliary duct bracket and preparation method thereof

A nano-silver antibacterial and bile duct stent technology, applied in the field of medical devices, to achieve the effect of widely popularizing the use value and controlling the thickness

Inactive Publication Date: 2012-06-06
令狐恩强 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are no relevant reports on bile duct stents with antibacterial effects in technical literature at home and abroad

Method used

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  • Nanometer silver antibacterial biliary duct bracket and preparation method thereof
  • Nanometer silver antibacterial biliary duct bracket and preparation method thereof

Examples

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Effect test

Embodiment Construction

[0022] Referring to the accompanying drawings, the nano-silver antibacterial bile duct stent of the present invention includes a plastic bile duct stent 1, and the inner and outer walls of the plastic bile duct stent 1 are evenly attached with a nano-silver deposition layer 2 with a particle size of 0.5-200nm.

[0023] The preparation method of nano-silver antibacterial bile duct stent of the present invention, its steps are:

[0024] ① Soak the plastic bile duct stent 1 in analytically pure (anhydrous) ethanol for several minutes;

[0025] ② Soak the plastic bile duct stent 1 in sodium, naphthalene and tetrahydrofuran corrosive solution;

[0026] ③ Fully wash the plastic bile duct stent 1 with secondary deionized water;

[0027] ④ Soak the plastic bile duct stent 1 in dilute nitric acid aqueous solution or use peroxide

[0028] Oxidation with hydrogen solution and other strong oxidizing agents;

[0029] ⑤ Fully wash the plastic bile duct stent 1 with secondary deionized wa...

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PUM

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Abstract

The invention relates to a nanometer silver antibacterial biliary duct bracket and a preparation method thereof. The nanometer silver antibacterial biliary duct bracket belongs to a medical appliance, in particular to a medical biliary duct bracket for human bodies. The nanometer silver antibacterial biliary duct bracket comprises a plastic biliary duct bracket, wherein a nanometer silver deposition layer with the nanometer silver particle size being 0.5 to 200cn is uniformly attached on the inner and outer wall surfaces of the plastic biliary duct bracket. Compared with the prior art, the nanometer silver antibacterial biliary duct bracket has the advantages that the attaching of the stable nanometer silver coating on the existing medical bracket can be realized, silver ions are continuously released for realizing the antibacterial effect on intestine liquid, the secondary infection is prevented, in addition, the problem of medical bracket blockage is avoided.

Description

technical field [0001] The invention belongs to medical appliances and is a medical bile duct stent used for human body. The invention relates to a nano-silver antibacterial bile duct stent and a preparation method thereof. Background technique [0002] In clinical practice, endoscopic implantation of medical stents into human bile ducts is one of the effective methods for minimally invasive treatment of bile leakage, which is simple and easy to implement. In the prior art, the medical stents are all made of plastic. After the medical stents are implanted in the human body for a long time, the intestinal fluid containing Escherichia coli and other bacteria flows back into the bile duct, which causes secondary infection and blocks the medical stents. main reason. It has caused great trouble and pain to the patient's medical treatment and life. Therefore, how to make the existing medical stent have an antibacterial effect, prevent secondary infection and avoid blockage of t...

Claims

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Application Information

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IPC IPC(8): A61F2/90A61L27/30A61L27/54
Inventor 令狐恩强王克宁王银川杨杰
Owner 令狐恩强
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