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Medical super-lubricity antibacterial catheter coating liquid

A medical catheter and coating liquid technology, applied in catheter, coating, medical science and other directions, can solve the problems of easy adhesion of bacteria on the surface of the catheter, difficult to grasp the dosage and operation, and unclean operation, so as to be convenient for doctors to operate. , reducing and salt deposition, not easy to fall off the effect

Inactive Publication Date: 2013-03-20
黄思宇 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Catheters currently used in medicine include urinary catheters, gastric tubes, anal tubes, endotracheal tubes, suction tubes, nasal cavity tubes, vascular tubes, etc. One of the most popular medical equipment, the general catheter is made of pure medical rubber tube, silicone tube and PVC hose. In order to reduce friction during the use process, lubricant is usually applied to the front of the catheter. It is difficult to grasp the dosage and operation, and it will add unpleasant links to the operation; in addition, the surface of the catheter is easy to adhere to bacteria, and it is very easy to be infected during the catheterization process, so the patient will be prevented and treated with antibiotics for infection. Antibiotics are harmful to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Take 2g of polyvinylpyrrolidone, 0.5g of collodion, 1g of castor oil, 5 mL of toluene, 2 mL of ethyl acetate, 10 mL of acetone, 20 mL of ethanol, 1 mL of isopropanol, 0.5 mL of acetic acid, 2 mL of tetrahydrofuran, 1 g of polyester and 0.5 g of PVP-I were prepared as a coating solution. Immerse the catheter in the coating solution for 1-60 seconds, take it out, dry it at 30-70°C for 5-30 minutes, and then seal it for storage.

[0026]

Embodiment 2

[0028] 2. Take 2g of sodium polyacrylate, 1g of polyvinyl chloride, 10 mL of cyclohexanone, 5 mL of toluene, 2 mL of tetrahydrofuran, 2 mL of ethyl acetate, 10 mL of ethanol, 20 mL of methyl ethyl ketone, 3 mL of methanol, and 10 mL of heptane , Prepare the coating solution with 0.5g of nano-silver powder, immerse the catheter in the coating solution for 1-60 s, take it out, dry it at 30-70°C for 5-30min, and then seal it for storage.

[0029]

Embodiment 3

[0031] 3. Take 2.0g of polyacrylamide, 10 mL of ethanol, 10 mL of butanone, 2 mL of tetrahydrofuran, 1 mL of isopropanol, 0.2 g of polyester, 0.2 g of castor oil, 0.5 g of collodion, and 0.3 g of nano-silver powder. into a coating solution. Immerse the catheter in the coating solution for 1-60s, take it out, dry it at 30-70°C for 5-30min, and then seal it for storage.

[0032]

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PUM

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Abstract

The invention discloses a medical super-lubricity antibacterial catheter coating liquid. The coating liquid consists of lubricating liquid and antibacterial substance, wherein the lubricating liquid is prepared through dissolving hydrophilic polymer in organic solvent and adding adhesive polymer at the same time; and the antibacterial substance consists of nano-silver or other nano materials, iodine or iodine compounds, chitin or chitosan and derivatives thereof. The coating liquid is directly soaked or sprayed on a catheter surface through one step when being used, and after solidification, a medical super-lubricity antibacterial catheter is prepared. The coating liquid has double effects of super lubricity and antibiosis, the coating liquid preparation and a coating method are simple, and the coating liquid is easy for mass production. The coated product has strong lubricity, and the coating liquid has an antibacterial function and no drug resistance and can prevent various bacteria and fungi infections and related complications from being generated. The medical super-lubricity antibacterial catheter coating liquid is suitable for the medical field and has good popularization and use values.

Description

technical field [0001] The invention relates to the field of medical materials, in particular to the composition of a coating liquid used in medical equipment, and at the same time relates to a method for preparing and using the coating liquid and a super-smooth antibacterial catheter coated with the coating liquid. Background technique [0002] Catheters currently used in medicine include urinary catheters, gastric tubes, anal tubes, endotracheal tubes, suction tubes, nasal cavity tubes, vascular tubes, etc. One of the most popular medical equipment, the general catheter is made of pure medical rubber tube, silicone tube and PVC hose. In order to reduce friction during the use process, lubricant is usually applied to the front of the catheter It is difficult to grasp the dosage and operation, and it will add unpleasant links to the operation; in addition, bacteria are easy to adhere to the surface of the catheter, and it is very easy to be infected during the catheterizatio...

Claims

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Application Information

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IPC IPC(8): A61L29/08A61L29/16A61L31/14
Inventor 黄斌陈叶廷施婷婷许关怡祁姗姗龚祝南
Owner 黄思宇
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