Long-effect anti-bacterial pain-alleviating and heeling-promoting medical cotton swab

Abstract

The invention discloses a long-effect anti-bacterial pain-alleviating and heeling-promoting medical cotton swab, which consists of a cotton stick and composite fiber cotton covering the end part of the cotton swab. The cotton swab uses reproducible and degradable composite polylactic acid fiber cotton for replacing a conventional absorbent ball; the production cost is reduced; the inherent defects of the absorbent cotton are overcome; no adverse influence exists on the wounded surface. The composite fiber overcomes the defect of poor hydrophilicity of the pure polylactic acid fiber; meanwhile, the mechanical performance is not damaged; the long-effect and durable antibacterial capability can be realized; a grafted polydopamine-carboxymethyl chitosan composite film layer is adhered onto the surface, so that the skin-friendly performance, the water absorption capability and the adsorption capability of the composite fiber are further improved; in addition, the introduced carboxymethyl chitosan also has certain effects of alleviating pain and promoting wound heeling. The cotton swab provided by the invention has the advantages that the production process is simple and efficient; the materials in each kink can be cyclically utilized; no adverse influence is caused on the environment.

Description

technical field [0001] The invention relates to the technical field of medical cotton swabs, in particular to a medical cotton swab for long-acting antibacterial, analgesic, and healing-promoting. 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, w...

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