What is the specific operation of dressing change?

(1) dressing change principle: strict aseptic technical operation; Do a good job of isolation; Change the sterile wound first, then the infected wound, first the one that is easy to reproduce, and finally the isolated wound; Those who participated in the operation on the same day should not change the dressing for patients with more pus or isolated wounds.

(2) Operation method: The bandage and external dressing can be removed by hand, and the gauze and drainage near the wound must be removed with tweezers; Wipe the skin around the wound with alcohol cotton ball from sterile area to bacterial area first, then clean the wound with physiological saline cotton ball, and don't rub or rub your back again; Wounds with more exudates, deeper wounds or heavy pollution should be washed with sterile normal saline, and wounds with more necrotic tissues should be washed with disinfectant; Cut off unhealthy granulation or necrotic tissue above the skin with sterile scissors or neutralize it with normal saline after being corroded by Chinese and western medicines, or clean the granulation tissue on the wound with normal saline. When there is obvious edema, wet compress with 2% ~ 5% hypertonic saline and change it every 4 ~ 6 hours. Generally, the wound can be covered with sterile gauze strips or sterile gauze, and those with more pollution and pus can be wiped with fresh clean, and then wet-packed with normal saline gauze; When granulation tissue is fresh, it can be covered with vaseline gauze first, and then put gauze; If the infection is serious, drain it and cover it with gauze if necessary, and bind it with adhesive tape or bandage.

(3) Removal time of incision suture: Generally, the suture is removed 4-5 days after head and neck surgery. The stitches are usually removed 6 ~ 7 days after thoracoabdominal surgery. Generally, the stitches are removed 9 ~ 10 days after limb surgery. During tension-reducing suture, stitches were removed 2 weeks after operation. Malnourished people need to extend the time to remove stitches.