| abstract |
(57) [Summary] [Composition] A method for producing a collagen sponge, which comprises freeze-drying a collagen solution, wherein a fat-soluble organic solvent is added to the collagen solution, and the mixture is homogenized and foamed. The foaming of the collagen solution can be performed in a short time, which allows the collagen sponge having a uniform pore size to be manufactured by a more practical method. |