Under scanning microscopy, the surface of amnion patches was covered with epithelium, nofibers and cells, there were no epithelium and cells on the surface of silatic patches.

• 扫描电镜观察，羊膜补片表面均有上皮覆盖，无纤维和细胞成分，硅橡胶表面无上皮，有少量纤维成分，无炎症细胞。