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AssigneeSeikagaku Corporation
InventorsKenji Miyamoto, Yasuhiro Kurahashi, Hiroki Kano
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A photocurable hyaluronic acid derivative of the present invention comprises hyaluronic acid and a photoreactive crosslinking group bonded thereto, wherein a 1.0 wt. % aqueous solution of the photocurable hyaluronic acid derivative obtained by dissolving the solid photocurable hyaluronic acid derivative in an aqueous solvent, is capable of passing through a porous filter having a pore size of 0.45 μm and a diameter of 25 mm at a rate of not less than 2 ml/minute at 24° C. under a pressure of 5.0 Kg/cm2; and a process for producing the photocurable hyaluronic acid derivative; and a photocured crosslinked-hyaluronic acid derivative; a medical material using the photoreactive hyaluronic acid derivative and a medical material using the photocured crosslinked-hyaluronic acid derivative.
A photocurable hyaluronic acid derivative comprising hyaluronic acid and a photoreactive crosslinking group bonded thereto, wherein a 1.0 wt. % aqueous solution of the photocurable hyaluronic acid derivative obtained by dissolving a solid photocurable hyaluronic acid derivative in an aqueous solvent, is capable of passing through a porous filter having a pore size of 0.45 μm and a diameter of 25 mm at a rate of not less than 2 ml/minute at 24° C. under a pressure of 5.0 Kg/cm2wherein the photoreactive crosslinking group is derived from cinnamic acid, substituted cinnamic acid or derivatives thereof.
Dependencies are inferred from the claim text.