HUMSCs Combined With Col I to Third-Degree Burn Wound

Inclusion Criteria: Aged 18-65 years, gender unrestricted Confirmed third-degree burns, wound area 1%-5% TBSA Admission within 72 hours after burn injury Voluntarily signed informed consent Able to cooperate and complete follow-up Exclusion Criteria: Pregnant or lactating females Severe immunodeficiency or autoimmune disease History of malignant tumor, or coagulation dysfunction Severe cardiac, hepatic, or renal insufficiency Hypersensitivity to collagen or stem cell components Uncontrollable severe wound infection Participation in other clinical studies within the past 3 months Inability to comply with follow-up