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High-toughness medical cotton swab capable of quickly stopping bleeding

A high toughness, cotton swab technology, applied in medical science, absorbent pads, bandages, etc., can solve the problems of water absorption gap, inconvenience of large-scale production, etc., to reduce production costs, increase additional use value, good toughness and strength Effect

Inactive Publication Date: 2017-04-26
阜阳市汇康医疗器械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the article "Polylactic acid fiber modification by grafting polyvinylpyrrolidone on the surface", polyvinylpyrrolidone was grafted on the surface of partially hydrolyzed polylactic acid fiber to obtain a modified polylactic acid fiber with certain water absorption, but this method is not convenient for large-scale production. Large-scale production, and there is still a big gap in the water absorption of fibers compared with absorbent cotton, and further modification is required

Method used

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Experimental program
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Embodiment Construction

[0016] A high-tenacity medical cotton swab that can quickly stop bleeding is composed of a cotton swab and composite fiber cotton wrapped at the end of the cotton swab. The composite fiber cotton is made of the following raw materials in parts by weight: polylactic acid particles 12, nanocellulose Whisker 1, polyethylene oxide 3, halloysite nanotube 0.1, polyethylene glycol 4, dopamine hydrochloride 5, Tris-HCl buffer solution, deionized water 300.

[0017] Wherein the preparation method of composite fiber cotton is:

[0018] (1) Mix polylactic acid particles with nanocellulose whiskers, polyethylene oxide, and halloysite nanotubes, mix them evenly at a high speed, and perform melt spinning at a spinning temperature of 215°C and a spinning speed of 2000 m / min , to make composite polylactic acid fibers with an average particle size of 10 μm for later use;

[0019] (2) First take 150 parts by weight of deionized water and put it into the reaction container, then add dopamine hy...

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Abstract

The invention discloses a high-toughness medical cotton swab capable of quickly stopping bleeding. The cotton swab comprises a cotton bar and composite fiber cotton wrapping the end of the cotton bar. The reproducible and degradable composite polylactic acid fiber cotton is used for taking the place of a traditional absorbent cotton ball, production cost is reduced, inherent defects of absorbent cotton are overcome, the prepared composite fiber cotton has good toughness and strength, hydrophilia is effectively improved, and polydopamine-polyethylene glycol is grafted on the surface of the composite fiber cotton so that hydrophilia and biocompatibility of the fiber can be further improved; halloysite doped nanotubes, polydopamine, polyethylene glycol and other raw materials are used together, the cotton swab has the effects of quickly stopping bleeding, sucking liquid, promoting wound healing and the like, and additional application value of the cotton swab is improved.

Description

technical field [0001] The invention relates to the technical field of medical cotton swabs, in particular to a high-toughness medical cotton swab capable of rapidly stopping bleeding. Background technique [0002] Medical cotton swab is a very common medical care product. It is obtained by rolling absorbent cotton on sticks made of plastic sticks, paper sticks, and wooden sticks. Its main functions are disinfection, sampling, etc., and its use is very wide. Because the cotton swab is in direct contact with the wound, it has high requirements on the quality of the absorbent cotton. The absorbent cotton used in traditional medical cotton swabs is mostly obtained from cotton after degreasing with lye. Although it has good skin affinity and water absorption, due to the use of It is natural cotton, easy to breed bacteria, and the production cost is high, resulting in the emergence of many sterile cotton swab products made of inferior absorbent cotton on the market, which directl...

Claims

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Application Information

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IPC IPC(8): A61L15/26A61L15/28A61L15/42A61L15/18
CPCA61L15/18A61L15/26A61L15/28A61L15/42C08L67/04C08L1/02C08L71/02C08L79/02
Inventor 李慧康
Owner 阜阳市汇康医疗器械有限公司
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