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Preparation method of stainless steel medical appliance surface antibacterial coating

A technology for medical devices and antibacterial coatings, which is applied in the field of preparation of hydrophilic antibacterial coatings on the surface of stainless steel medical devices, can solve the problems of secondary infection at the implant site, easy breeding of bacteria, etc., and achieve the goal of solving bacterial infections and preventing biofilms The effect formed

Inactive Publication Date: 2017-09-29
SICHUAN KANGYUAN MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing a hydrophilic antibacterial coating on the surface of a stainless steel medical device, so as to solve the problem that bacteria are easy to breed on the surface of the current medical device and cause secondary infection at the implantation site

Method used

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] A method for preparing a hydrophilic antibacterial coating on the surface of a stainless steel medical device, comprising the following steps:

[0025] Surface cleaning of stainless steel medical instruments: Soak stainless steel medical instruments in 5wt% sodium hydroxide solution for 30 minutes, then wash with deionized water and dry;

[0026] Surface amination of stainless steel medical devices: Soak the cleaned stainless steel medical devices in toluene solution of aminosilane for 15-60 minutes to aminate the surface of stainless steel medical devices, take them out after soaking, and drain;

[0027] Preparatio...

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Abstract

The invention discloses a preparation method of a stainless steel medical appliance surface hydrophilic antibacterial coating. The method comprises the following steps of cleaning the surface of a stainless steel medical appliance; soaking the stainless steel medical appliance for 30 minutes by a sodium hydroxide solution being 5 weight percent; then, performing cleaning by deionized water; then, performing drying; performing surface amination on the stainless steel medical appliance; soaking the stainless steel medical appliance subjected to surface cleaning by a methylbenzene solution of the amino silane for 15 to 60 minutes so as to realize surface amination of the stainless steel medical appliance; after soaking, taking out and draining the stainless steel medical appliance; preparing the hydrophilic antibacterial coating on the surface of the medical appliance; uniformly spraying and coating the surface of the stainless steel medical appliance with the medical appliance surface hydrophilic coating composition. Bacteria cannot be attached onto the surface of the medical appliance treated by the method provided by the invention, so that the sterilization and disinfection treatment is not needed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method for preparing a hydrophilic antibacterial coating on the surface of a stainless steel medical device. Background technique [0002] Stainless steel medical devices are widely used clinically, such as most surgical instruments and some surgical implants. These instruments must be sterilized before use to prevent postoperative infection. The current research has confirmed that bacteria will quickly form a layer of biofilm on the surface of the material after they adhere to the surface of the material. The current sterilization and disinfection methods can kill the living bacteria adhered to the surface of the material, but it is difficult to destroy this layer of biofilm. Therefore, the bacteria coated in this layer of biofilm are difficult to kill, which often leads to secondary infection of the implant site. Contents of the invention [0003] The purpose of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L31/14A61L31/10
CPCA61L31/10A61L31/14A61L2420/02A61L2420/08C08L83/00C08L39/06C08L71/02
Inventor 蒲丹
Owner SICHUAN KANGYUAN MEDICAL EQUIP
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