Prospective cohort studies through clinical trials. Obtained a large amount of real-world data to explore the efficacy of PLCL/Fg dressings for specific clinical applications.

Published 1 relevant SCIE paper. Provide a large amount of data support for the application of PLCL/Fg dressing in diabetic foot ulcer wound repair through basic experimental and clinical experimental studies. It can provide a practical and effective biomaterial for the treatment of clinical skin wound structure and function reconstruction, make the patient's wound healing as soon as possible, benefit the general public, reduce medical expenditure, reduce the burden on the society, lay the foundation for the industrialization and marketization of national innovative medical devices, and help to improve the international status and value of the application.

Inclusion Criteria:

• Age between 18 and 90 years; type 1 or type 2 diabetes mellitus; history of ulceration for more than 4 weeks at enrollment; wound area between 1 and 25 square centimeters; wound depth of Wagner grades 1 and 2; and an ABI of 0.7 to 1.3 on the affected lower extremity or a transcutaneous oxygen pressure of greater than or equal to 30 mmHg.

Exclusion Criteria:

• Wound healing percentage greater than 30% during wound preparation (7 days); any infection, osteomyelitis, or other condition that may affect wound healing, such as deep vein thrombosis, rheumatoid arthritis, systemic lupus erythematosus, or any other systemic inflammatory disease.

Data will be made available on request.