Ran Yantian Angel Fund is a charity dedicated to helping cleft lip and palate patients improve their quality of life. The fund cooperates with many hospitals to provide medical services for patients with cleft lip and palate. However, due to the wide distribution of branches and cooperative hospitals of Yanran Angel Fund, I can't provide specific information about designated hospitals in Changsha.

It is suggested that you contact the official website of Yanran Yanran Angel Fund directly or consult by email or telephone to find out the specific information of designated hospitals in Changsha. At the same time, you can also try to contact the local hospital to find out whether they are cooperating with the Ranyan Tianshi Foundation to provide medical services for patients with cleft lip and palate.