Pilot Study of Human Adipose Tissue Derived Exosomes Promoting Wound Healing

This study is a one-arm pilot study. All patients were recruited on an outpatient basis. After screening visits and informed consent was obtained, debridement and photography were performed on the patient's wound surface, and the wound area was measured. Patients in the intervention group were then provided with adipose tissue exosome dressings.200-300ml of the subject adipose tissue before centrifugation was collected, and the extracellular vesicles were retained after tissue homogenate and filter screening. The extracellular vesicles were mixed with sterile hydrogel and applied directly to the wound surface, and the wound was covered with an inert protective dressing.