United States Patent ( 19 ) Silver et

A therapeutic method for treating pressure ulcers like decubitus ulcers with biodegradable collagen flake compositions and with biodegradable collagen sponge or sponge-like compositions. The products of the inven tion includes biodegradable collagen flake compositions and biodegradable collagen sponge or sponge-like com positions. The products are useful for medical applica tions, like skin reconstruction, treatment of wounds, especially deep wounds, also in connection with sur gery, including cosmetic surgery. The invention also deals with biocompatible synthetic resin sponge or sponge-like and flake products for medical and similar applications. The invention contemplates the treatment of human and animal species.