acellular dermal matrix was prepared from allogenic or xenogenic skin by removing epidermis with a hyperosmotic salt solution and excluding cellular components in dermis with a detergent solution .將異體(或異種)皮用高滲鹽溶液處理以去除表皮,去污劑處理以去除真皮中細(xì)胞成分,得到一種無細(xì)胞真皮基質(zhì)。