For wounds, whether they are small cuts or large incisions, the proper care is very important, and the procedure requires to use wound dressings. The design of the foam dressing with silicone border is used for direct or indirect contacting with the wound, while adhesive edges are used for fixing the dressing in place.
1. The difference between traditional wound dressings and modern wound dressings
When the wound is closed with a dressing, it will continue to be exposed to substances such as proteases and growth factors that are favorable for healing, and these will be lost in exposed wounds. Therefore, since the late 20th century, the appearance of sealed dressings provides a moist environment for the protection of wounds and wound healing. These foam dressing products facilitate the faster epithelial regeneration and collagen synthesis, promote angiogenesis by creating a hypoxic environment in the wound bed, and reduce wound infection by lowering the PH of the wound bed. People used woven water absorption cotton gauze in 1891. Until the mid-1900s, people still firmly believed that if they were dry and exposed, the wound would heal faster, but "A sealed wound heals faster than an open wound" was written in ancient Egyptian medical literature - Edwin Smith Surgical papyrus from 1615 BC. And Dr. Winter proved that the growth rate of the epithelium under wet conditions was twice that under the scabs in 1962, and created the theory of wet healing. In the mid-1980s, the first modern wound dressings became available, which have the important characteristics of providing moisture and absorbing liquid (such as polyurethane foam, hydrocolloids, iodized gels). In the mid-1990s, the synthetic wound dressing was expanded into various categories, including hydrogels, hydrocolloid, alginate, synthetic silicone foam dressings, silicone, tissue adhesives, breathable films, and dressings containing silver/collagen.
2. Foam dressings with silicone border: Postoperative healing materials still belong to sealed wet dressings
Moat of the foam dressings with silicone border are made by water molecular materials foaming, and the surface is covered with a layer of polyurethane semi-permeable film. They have high exudate absorption capacity, exudate management capacity, high hydrophilic materials, and can reduce the risk of wound adhesion, promote the wound healing, and the foam pad can cushion the outside pressure. This dressing is an adhesive dressing, which is regular flake dressing and irregular dressing (including sacral tail stickers, heel stickers and butterfly stickers). The upper layer of the paste parts around the dressing is polyurethane film; the lower layer is hydrocolloidal viscose, which is composed of sodium carboxymethyl cellulose and artificial rubber, etc., and the middle area of the dressing is polyurethane foam. You could also buy medical dressing supplies online, which is quite safe and convenient.
This dressing has an absorption effect on wound secretions, and has certain advantages in cushioning effect and heat insulation performance, which has a good application effect. The foam dressing with silicone border can relieve pain, reduce infection rate and promote wound healing, and the non-adhesion wound has high absorption.
At present, silicone foam dressings can be widely used in the care of exudative wounds, lower limb ulcers and pressure sores. At the same time, the adhesive silicone foam dressings can also be used in the nursing of diabetic foot ulcers without infection.