High-Strength Collagen Sponge
AssigneesKoken Co., Ltd., Osaka University
InventorsKen NAKATA, Gaku KANNO
Life of this patent
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Abstract
To provide a collagen sponge excellent in mechanical strength and a production method for the collagen sponge. A collagen sponge including a porous construct having a pore structure, the collagen sponge having a tensile strength of 1 N or more and 5 N or less in every direction including a length direction and a width direction. The collagen sponge may be produced by a production method including the following steps: (1) a step of subjecting a collagen solution obtained by mixing collagen and a solvent to stirring and deaeration treatment; (2) a step of subjecting the collagen solution to freeze-dry treatment; and (3) a step of subjecting a dried collagen product after the freeze-dry treatment to insoluble treatment.
Claims14
1-15. (canceled)
A collagen sponge, comprising a porous construct having a pore structure, the collagen sponge having a tensile strength of 1 N or more and 5 N or less in any direction.
A collagen sponge, comprising a porous construct having a pore structure, the collagen sponge having a tensile strength of 1 N or more and 5 N or less in any direction, wherein the collagen sponge is derived from atelocollagen and an aldehyde compound or an epoxy compound, the collagen sponge has an average pore diameter falling within a range of 1 micron or more and less than 50 micron and the collagen sponge has a stress of 7 kPa or more and 30 kPa or less when loaded with 10 percent strain.
Dependencies are inferred from the claim text.