A thin film of a medical implant includes a surface, a plurality of walls and a plurality of paths. The walls are disposed on the surface, and formed to shapes of arc. The paths are disposed on the surface, wherein each of the paths is located among the walls. The walls and paths have a plurality of holes. According to the thin film of the present disclosure, the walls are formed to shapes of arc, and have no acute anger, whereby the biological cells can helpfully grow and attach on the thin film quickly. Furthermore, the thin film has the holes, which provide cell tissue, such as pseudopod, tentacle, etc. of the biological cells to grow and attach therein, whereby the biological cyto-affinity of the thin film can be increased so as to increase the biological cyto-compatibility of the medical implant.本發明係有關於一種醫療植入物及其表面薄膜及表面薄膜製造方法,醫療植入物之表面薄膜具有複數牆體與複數走道,該些牆體與該些走道皆位於表面薄膜之表面,該些牆體皆呈弧狀,該些走道分別位於些牆體之間,該些牆體與該些走道皆具有複數孔洞。由於本發明之表面薄膜的牆體皆呈弧狀而不具有稜角,所以利於生物細胞長入附著,且表面薄膜又具有孔洞,以供生物細胞在生長過程中可進一步將偽足、觸手等細胞組織生長附著於孔洞中,如此可提高表面薄膜與生物細胞的親合性,以增進醫療植入物對生物細胞之相容性。11‧‧‧表面薄膜111‧‧‧牆體113‧‧‧走道115‧‧‧孔洞
