FUNCTIONAL FILM

摘要

A functional film that is applied to a surface of a medical apparatus or a biomaterial includes a film of Ti-doped tetrahedral amorphous carbon (ta-C:Ti film).

主权项

1. A functional film that is applied to a surface of a medical apparatus or a biomaterial, the functional film comprising a film of Ti-doped tetrahedral amorphous carbon (ta-C:Ti film), wherein:
an atomic ratio of Ti to C in a composition of the film is equal to or greater than 0.03 and equal to or less than 0.09; and the atomic ratio of Ti to C is equal to a number of Ti atoms occupying the film divided by a sum of a number of carbon atoms having an sp3 hybrid orbital and a number of carbon atoms having an sp2 hybrid orbital occupying the film.