The rapid development of medicine has increased the types of medical dressings, and biological dressings and synthetic dressings are more common . Medical dressings play an irreplaceable role in wound treatment, not only can completely remove necrotic tissue, protect the wound, but also accelerate the healing of the wound. It is worth noting that different dressings play different roles. This article will continue the content of the previous article and continue to introduce the functions and characteristics of dressings , including 3commonly used dressings.
1. Film type dressing:
Film dressings are mainly composed of polyurethane materials and desensitized medical adhesives. They are divided into inner and outer layers. The inner layer is a hydrophilic material, which can absorb wound exudate. The outer layer material has good air permeability and elasticity. The characteristics of this kind of dressing are transparent, which is easy to observe the wound, can closely adhere to the wound surface, effectively maintain the wound exudate, thus provide a moist environment conducive to wound healing, and promote the necrotic tissue to fall off. Clinical studies have shown that the application of such dressings in tracheotomy care and maintenance of central venous catheters is mainly used to prevent radiation damage and superficial wounds, and it can also be used as the outer protective film of dressings. In deep vein catheterization, the transparent film can effectively relieve the discomfort of the puncture point, fix the catheterization, and protect the integrity of the skin . It can not only effectively prevent infection, but also improve the comfort of patients, which is worthy of clinical application.
2. hydrogel dressing
The main components of hydrogel dressings are 70%-90% pure water, carboxymethyl cellulose and some other additional components. The main function of hydrogel is self-debridement, and the mechanism is to decompose necrotic substances by collagen-degrading enzymes in the exudate of the wound itself in a humid environment.
Features: The hydrogel dressing can adhere closely to the uneven wound surface, reduce the chance of bacterial growth, prevent wound infection, accelerate the formation of new blood vessels, and promote the growth of epithelial cells.
Hydrogel dressing is a new type of dressing, which can create a sterile and moist environment, accelerate wound healing, accelerate epithelial regeneration, strengthen macrophage activity, and effectively prevent itching and pain. The advantages of this dressing are: good water absorption, good biocompatibility, smooth surface and various antibacterial agents, which are mainly used in burn diseases .
3. Silver Antibacterial Dressing
Silver-containing antibacterial dressing is a new type of broad-spectrum antibacterial dressing. Silver has been used as an antibacterial agent in the medical field for a long time. Due to its strong antibacterial properties and low toxicity, it has its own unique advantages in the treatment of infected wounds. It can be broad-spectrum antibacterial and kill a series of bacteria including Staphylococcus aureus (MRSA), so silver has been widely accepted and used as an antibacterial agent, and the types of silver-containing antibacterial dressings on the market are also increasing. The dressing is mainly suitable for wounds such as severely polluted wounds, infected wounds, diabetic foot ulcers, and bedsores.
Dressing properties: Silver has a very good antibacterial effect without causing bacterial resistance. Silver ions can inhibit the growth of microorganisms, fungi and some viruses, so as to achieve bacteriostatic effect; silver ions can also hinder the synthesis of bacterial cell wall proteins, prevent the division of nuclear NDA and destroy the synthesis of bacterial respiratory energy chain, so that the bacterial cell wall ruptures. death, the bactericidal efficacy remains for 3-7 days.
Features: ①Continuous release of silver ions, efficient and durable antibacterial. ② water permeable to prevent bacteria. ③No adhesion to the wound, painless dressing change. ④Easy to remove without residue, worry-free for deep filling. ⑤Special weaving process to prevent the granulation from being too long.
For more information on Innomed® wound dressing, refer to the previous articles. If you have customized needs, you are welcome to contact us; we will serve you wholeheartedly.
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Editor: kiki Jia
Date: November 10 , 2022