Do you know what kinds of dressings are used to dress wounds?

Medical dressing is a kind of auxiliary products used for medical surgery, trauma dressing, to provide protection for the wound and promote healing. Everyday use of band-aids, sterile gauze, liquid dressings, etc. also belong to the medical dressing, larger surgical wounds or chronic wounds will also use hydrocolloid, alginate and other new dressings. Medical dressings have a variety of roles, including absorbing wound exudate, supporting organs, preventing adhesions, and providing a suitable environment for wound healing.

The development of dressings has gone through three stages, dry dressings, wet dressings, controlled drainage dressings, generally also divided into these three dressings.
Over the past hundred years, it has been recognized that wound care requires the use of dry, clean dressings to cover the wound in order to protect the wound from forming a scab and to avoid secondary injury. Dry dressings are mainly represented by gauze, which is derived from cotton, is easy to clean and disinfect, is breathable and has a certain degree of adsorptive properties, so this kind of dressing has been used around the world in the last hundred years, and based on the gauze to produce a variety of dressings, bandages, spacers and other derivatives of the dressings.

Over the past two decades, with the development of medical research, people have gradually realized that the wound repair environment is similar to plant growth, not only need to have rich nutrients in the substrate, but also need a certain degree of humidity and warmth, which is conducive to the growth of granulation tissue and epithelial tissue crawling, so the concept of the "wet environment" is becoming more and more deeply rooted in people's hearts and minds, and accepted by the majority of healthcare professionals. Therefore, the concept of "wet environment" has become more and more popular and accepted by the majority of medical personnel. Based on this need, a variety of wet dressings came into being.
Compared with traditional dry dressings, wet dressings provide a low-oxygen, moist and slightly acidic environment for wounds, which is conducive to inhibiting bacterial growth and promoting endogenous enzyme systems to start, resulting in endogenous debridement; more importantly, the creation of a low-oxygen environment can promote capillary generation, the release of a variety of growth factors and up-regulate their activity, promoting the growth of granulation tissue and re-epithelialization, which can accelerate the repair process, so at present almost all developed countries are using wet dressings, so it's a good idea to use wet dressings for wounds. developed countries are using wet dressings. According to the different dressing materials and application scenarios, commonly used wet dressings mainly include hydrocolloid dressings, foam dressings, alginate dressings and so on.

As we all know, exudate management in wound care is very critical. Wet dressings use closed or semi-closed way to protect the wound, can produce a certain degree of negative pressure, wound exudate play a siphon drainage effect, so it is also regarded as negative pressure drainage, but due to the low value of the negative pressure, the deeper tissues of the wound is not very useful, so the third generation of controllable active drainage dressings era comes.