Adhesion-preventing film

Abstract

An embodiment of the present invention is to provide an adhesion barrier film including: a derivative of a polyanionic polysaccharide, where the adhesion barrier film contains 3 mass % or greater of biodegradable polyester particles having an average particle size of 1 μm or greater and 60 μm or less, a number average molecular weight Mn of the biodegradable polyester particles is 1,000 Da or greater and less than 30,000 Da, and a content A mass % of the biodegradable polyester with respect to the number average molecular weight Mn of the biodegradable polyester satisfies an expression below: A ≧ 1 . 0 × 1 ⁢ 0 - 8 ⁢ Mn 2 + 6 . 0 × 1 ⁢ 0 - 5 ⁢ Mn + 2.68 .

Dependencies are inferred from the claim text.