Composite of support matrix and collagen, and process for producing support substrate and composite
OwnerEiichi Kitazono, Takanori Miyoshi +3inventors
InventorsEiichi Kitazono, Takanori Miyoshi, Hiroaki Kaneko, Yoshihiko Sumi, Yukako Fukuhira
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Abstract
A cylindrical body is produced which is composed of a fiber structure with a basis weight of 1-50 g/m2 and having a diameter of 0.5-50 mm and a bellows-shaped section, wherein the crest-to-crest spacing of the bellows-shaped section is no greater than 2 mm and the crest-to-valley depth of the bellows-shaped section is 0.01-1 mm; collagen is added to the cylindrical body to produce a composite comprising the cylindrical body and collagen.
Claims14
A composite comprising collagen and a support matrix made of a fiber structure composed of aliphatic polyester fibers with a mean fiber size of 0.05-50 μm.
A cylindrical body characterized by being composed of a fiber structure with a basis weight of 1-50 g/m2 and having a membrane thickness of 0.05-0.2 mm and a diameter of 0.5-50 mm, wherein the spacing of the bellows-shaped section is no greater than 2 mm and the depth of the bellows-shaped section is 0.1-10 mm.
A method for production of a cylindrical body composed of a fiber structure with a basis weight of 1-50 g/m2, wherein the spacing of the bellows-shaped section is no greater than 2 mm and the depth of the bellows-shaped section is 0.01-0.1 mm, which method comprises a stage of producing a solution of an aliphatic polyester in a volatile solvent, a stage of spinning said solution by an electrostatic spinning method, a stage of obtaining a fiber structure accumulated on a collector, and a stage of molding said fiber structure into a cylindrical body having a bellows-shaped section with a spacing of no greater than 2 mm.
Dependencies are inferred from the claim text.