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Method for preparing medical instrument surface hydrophilic coating

A medical device and hydrophilic coating technology, applied in the field of medical devices, can solve the problems of easy breeding of bacteria and secondary infection of the implanted site, and achieve the effect of solving bacterial infection and preventing the formation of biofilm

Inactive Publication Date: 2017-09-15
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

[0019] 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.

[0020] A method for preparing a hydrophilic coating on the surface of a medical device, comprising the following steps:

[0021] Dissolving the hydrophilic polymer in an organic solvent to obtain a hydrophilic polymer solution;

[0022] adding an inorganic composition composed of inorganic elemental substances and water-soluble inorganic salts into a hydrophilic high polymer solution and fully mixing to obtain an inorganic composition solution;

[0023] Dissolving the anticoagulant drug in an organic solvent to obtain an anticoagulant solution;

[0024] adding the anticoagulant solution to the inorganic composition soluti...

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Abstract

The invention discloses a method for preparing a hydrophilic coating on the surface of a medical device, comprising the following steps: dissolving a hydrophilic high polymer in an organic solvent to obtain a hydrophilic high polymer solution; The formed inorganic composition is added into the hydrophilic polymer solution and mixed fully to obtain an inorganic composition solution; the anticoagulant drug is dissolved in an organic solvent to obtain an anticoagulant solution; the anticoagulant solution is added to the inorganic composition The solution and water are stirred evenly to obtain the hydrophilic coating composition on the surface of the medical device; the hydrophilic coating composition on the surface of the medical device is evenly sprayed on the surface of the stainless steel medical device. Bacteria cannot adhere to the surface of the medical device treated by the method of the present invention, so no further sterilization treatment is required.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method for preparing a hydrophilic coating on the surface of a 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. Current studies have 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 live bacteria adhering 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 the present invention is to provide a me...

Claims

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Application Information

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IPC IPC(8): A61L31/14A61L31/10A61L31/08
CPCA61L31/14A61L31/082A61L31/10A61L2400/18A61L2420/02A61L2420/06
Inventor 蒲丹
Owner SICHUAN KANGYUAN MEDICAL EQUIP
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