For superficial wounds on human skin, band-aids have always been the most convenient and simple way to treat. In recent years, liquid band-aids have become popular. Can it achieve the same hemostasis and anti-infection effects as traditional band-aids? Li Xialai, head nurse of the Endocrinology and Rheumatology Department of the Rocket Army Special Medical Center, gave us a detailed introduction.
Liquid band-aid is a new type of medical device that is different from traditional band-aids. It is mainly composed of film-forming materials, solvents and functional substances. It adheres tightly to the wounded part of the skin by smearing or spraying, forming a translucent protective film, which is bacteria-resistant, breathable, waterproof, easy to use, easy to observe the wound and promote wounds Recovery and other features. Traditional band-aid is a long strip of tape with a yarn strip in the middle. It is mainly composed of benzalkonium chloramine, elastic fabric, adhesive, non-woven absorbent pad and PE isolation film. It has the effects of hemostasis and broad-spectrum sterilization.
The effects of the two types of band-aids are similar, but in terms of application range, liquid band-aids are more widely used. Traditional band-aids are suitable for small wounds with relatively superficial wounds, neat and clean wounds, little bleeding and no need for sutures, and their clinical use is limited. Liquid band-aid is a solvent contained in a small bottle. It is a biofilm-forming disinfectant. Compared with traditional band-aids, it has the following advantages: the continuous disinfection function of the wound surface and the continuous protection function of the wound surface are combined, and the waterproof performance is extremely strong; it is effective Kills Escherichia coli, Staphylococcus aureus and Candida albicans; soft, can fill the wounded oral cavity, and promote the healing of the wound at the puncture point; it will not cause pain when removed, and will not cause re-damage of the wound; it has good antibacterial properties and air permeability Performance, can promote wound recovery.
Liquid bandages are divided into two categories: the first category is an over-the-counter skin protectant, which is mostly used to protect the skin surface, such as for skin abrasions and chronic pressure sores; the second category is a tissue adhesive used for surgical sutures. Used to treat severe skin tears. According to the different film-forming materials, liquid band-aids are mainly divided into chemical film-forming materials and biological film-forming materials. Chemical film-forming materials include cyanoacrylates, nitrocellulose, polyvinyl alcohol, polyvinyl acetal, polyurethane, etc.; biological film-forming materials include chitosan, etc., of which chemical film-forming materials are the most widely used. Studies have found that liquid band-aids containing cyanoacrylate have good effects on skin abrasions and mild burns.
Liquid band-aids have a wide range of clinical applications and can be used in surgery, burns, obstetrics and gynecology, emergency departments, dermatology, clinical care (venous care), daily injuries, etc. Because of its hemostatic effect, liquid band-aids are classified as category II or III medical device products. However, it should be noted that liquid band-aids that contain drugs or have pharmacological effects cannot be managed in accordance with medical devices, but need to be managed in accordance with drugs. Unauthorized use.
Liquid band-aids also have their limitations, which are mainly manifested in the few types of film-forming materials, poor film-forming properties of existing film-forming materials, pungent odor, and tingling sensation.