Biological composite air-permeable dressing and preparation method thereof

Abstract

The invention provides a biological composite air-permeable dressing and a preparation method thereof. The biological composite air-permeable dressing consists of the following components in percentage by weight: 0.1-2% of natural macromolecule polysaccharides, 5-15% of a moisturizing agent, 0.012-0.15% of a cross-linking agent, 0.01-0.2% of an antioxidant, 0.01-1% of an acid-base adjusting agent,0.01-20% of a medicine carrying effective component and the balance of water, wherein the pH value of the dressing is within 6.5-7.2. By adopting the biological composite air-permeable dressing provided by the invention, antibacterial isolation protection can be formed for a wound surface, a wet repairing nutrition environment can be created for the wound surface, pain irritation and secondary traumas caused by medicine change peeling can be reduced, functions of cold compress and trauma cooling can be achieved, skin has normal physiological metabolism, hydrops oozing out from the wound surface can be cleaned and absorbed, stable drug carrying and release can be achieved, the trauma healing speed can be increased, the treatment time can be shortened, meanwhile, the dressing has no exclusiveness and is high in biocompatibility and free of anaphylaxis, and the dressing is a transparent membrane material, so that a medical operator can visibly and accurately observe the wound surface healing situation of a patient.

Description

technical field [0001] The invention relates to the field of clinical medical treatment and restoration treatment, in particular to a biocomposite breathable dressing and a preparation method thereof. Background technique [0002] The skin is the first barrier between the body and the natural world. It can prevent the invasion of pathogenic microorganisms in the environment and the loss of body fluids. It is a very important organ of the body. However, skin trauma is also very common in life, especially skin damage caused by burns, radiation burns or other reasons, especially large-area skin damage, which will lead to failure of human internal organs, causing life-threatening, mild Patients also suffer from poor quality of life sequelae due to damaged or missing skin. [0003] Dressings should not only protect the wound, prevent wound infection, but also repair the wound. If there is no external dressing that can approach or partially replace the comprehensive barrier of sk...

AI Technical Summary

Problems solved by technology

[0012] Aiming at the technical problems in the prior art that the wound surface cannot be kept moist, and it is easy to cause secondary injury to the wound, and cannot absorb the tissue fluid secreted by the wound, which affects wound healing, the present invention provides a biocomposite breathable dressing and a preparation method thereof. The biocomposite breathable dressing can block the invasion of external bacteria to the wound tissue, form an antibacterial isolation protection for the wound, create a moist and repairing nutritional environment for the wound, prevent scabbing and adhesion of the wound, and reduce the pain caused by dressing change and removal Stimulation and secondary trauma can play a role in calming the wound with cold compresses, reducing the pain of damaged skin, enabling the skin to perform normal physiological metabolism, without affecting the speed of cell growth and cell repair, cleaning and absorbing the effusion exuded from the wound , avoid exogenous infection, has stable drug loading and drug release, can accelerate wound healing and shorten treatment time, and the dressing is not exclusive, has high biocompatibility, does not produce allergic reactions, and can be made into a transparent dressing for convenience Medical staff can intuitively and accurately observe the patient's wound healing

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