Special dressing used after burn wound mesh grafting

Abstract

The invention discloses special dressing used after burn wound mesh grafting and belongs to the technical field of medical dressing. The side, making contact with a wound portion, of the dressing sequentially comprises an inner layer, a middle layer and an outer layer. The inner layer of the dressing is rich in zinc ions, and a plurality of through drainage holes are formed in the thickness direction of the inner layer of the dressing. The inner layer of the dressing is formed by blending chitosan fibers and active carbon fibers and used for resisting infection, stopping bleeding, promoting healing and absorbing a small amount of wound secreta. The middle layer of the dressing is made of a polyurethane foam sponge layer and used for absorbing exudates discharged form the drainage holes of the inner layer of the dressing. The outer layer of the dressing is a cotton weaving gauze layer and used for fixing and binding. According to the special dressing, the inner layer, the middle layer and the outer layer are matched, design is ingenious, and the dressing has the advantages of stopping bleeding, resisting infection, preserving moisture, promoting healing, being good in drainage performance and the like, and can effectively used for wound healing after burn wound mesh grafting.

Description

technical field [0001] The invention belongs to the technical field of medical dressings, in particular to a special dressing for burn wounds after mesh skin grafting. Background technique [0002] Mesh skin grafting is the most common type of skin grafting in patients with extensive burns. After the skin was harvested, the skin grafts were trimmed into a net shape with a mesh skin machine and transplanted on the burn wound. After the reticular skin and the wound base establish blood supply, the epithelium begins to crawl, the mesh gradually closes, and the wound is completely healed. The advantage of mesh skin grafting is that subcutaneous hemorrhage is not easy to occur, it is easy to survive, a large proportion of wounds are closed, and the postoperative function is good; the disadvantage is that the anti-infection ability is poor, and once the bacterial content of the exposed wound exceeds the maximum limit, the bacteria will nibble away. New epithelium, even reticular...

AI Technical Summary

Problems solved by technology

Polyurethane foam sponge is a new type of synthetic dressing, which has a strong ability to absorb exudate, and actively absorbs and retains in situ, but it does not have biological effects of anti-infection and promoting healing

In addition, whether it is chitosan dressing, activated carbon fiber or polyurethane foam sponge, the toughness and tensile strength of the three are not enough, which is not conducive to pressure bandaging

Images