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Preparation method of high-toughness bacteriostatic medical catheter

A medical catheter, high toughness technology, applied in the direction of the catheter, etc., can solve the problems of easy shedding of surface components, insufficient toughness, poor antibacterial effect, etc., achieve good antibacterial effect, increase content, and improve antibacterial performance

Inactive Publication Date: 2019-06-21
谭祖干
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for preparing a bacteriostatic high-toughness medical catheter in view of the defects of poor antibacterial effect of current medical catheters, easy shedding of surface components washed by liquid medicine, and insufficient toughness

Method used

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  • Preparation method of high-toughness bacteriostatic medical catheter

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preparation example Construction

[0028] Preparation of grinding products: Put 500g of Morus alba in an oven, dry at 60°C for 3 hours, put it into a planetary ball mill after drying, under the conditions of a ball-to-material ratio of 10:1 and a speed of 200r / min Grinding for 60 minutes, passing through a 100-mesh sieve to obtain the ground product.

[0029] Preparation of filter cake: put the above grinding product and 18% acetic acid solution into a beaker at a mass ratio of 1:5, mix and stir with a stirring device at a speed of 300r / min for 20min, filter to obtain a filter residue after stirring, and wash with distilled water Filter the residue 3 times, put the washed residue into the beaker again with 18% acetic acid solution at a mass ratio of 1:10, mix evenly, let stand for 1 hour, and then filter to obtain a filter cake.

[0030]Preparation of the modified filter residue: in parts by weight, 8 parts of the above-mentioned filter cake, 1.0 part of sodium hydroxide and 15 parts of 30% propanol solution by...

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Abstract

The invention relates to a preparation method of a high-toughness bacteriostatic medical catheter and belongs to the technical field of medical instruments. The preparation method including: taking white mulberry bark as a raw material to obtain a filter cake; treating the filter cake to obtain modified residues; then mixing the modified residues with organic compounds at high temperature to obtain a prefabricated reactant; finally, putting the prefabricated reactant, magnesium carbonate and silicon dioxide into an internal mixer for high-temperature stirring and extrusion to obtain the high-toughness bacteriostatic medical catheter. In the method, flavone, chitosan, chitin and other organic compounds which are extracted are beneficial to strengthening the bonding effect among various molecules in the medical catheter, the chitosan, chitin and other substances have good bacteriostatic effect, which improves the bacteriostatic performance of the medical catheter and has a broad application prospect.

Description

technical field [0001] The invention relates to a preparation method of a bacteriostatic high-toughness medical catheter, which belongs to the technical field of medical device preparation. Background technique [0002] Biomedical materials are the basis for the study of artificial organs and medical devices, and have become an important branch of materials science. The main driving force for the rapid development of biomedical materials comes from the aging population, the increase of young and middle-aged trauma, the increase of patients with difficult diseases and the development of high technology. The acceleration of population aging process and human pursuit of health and longevity have stimulated the demand for biomedical materials. [0003] Medical catheter is a general term for lumen products that connect the inside and outside of the human body. It is widely used as a pathway in drainage, perfusion, drug administration, blood collection, blood transmission, detect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L29/00A61L29/02A61L29/14
Inventor 谭祖干
Owner 谭祖干
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