Composite of support matrix and collagen, and method for production of support matrix and composite
A cylindrical body is produced which is composed of a fiber structure with a basis weight of 1-50 g/m 2 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 including the cylindrical body and collagen.
1. A method for the production of a cylindrical body composed of a fiber structure with a basis weight of 1-50 g/m 2 , wherein the cylindrical body has a bellows-shaped section, wherein the spacing of the bellows-shaped section is no greater than 2 mm and the depth of the bellows-shaped section ranges from 0.01-0.1 mm, the method comprising:
1) producing a solution of an aliphatic polyester in a volatile solvent, 2) spinning said solution by an electrostatic spinning method to form a fibrous structure on a mandrel having a surface roughness ranging from 0.2-S to 400-S, and 3) forming the bellows-shaped section by first securing one end of the formed fibrous structure against the mandrel and then pulling said mandrel out of the fibrous structure in the direction toward the secured end.
2. A method for production of a composite composed of a cylindrical body and collagen, wherein a composite is formed of a cylindrical body produced by a method according to claim 1 , and collagen.
3. A method for production of a composite composed of a cylindrical body and collagen, wherein a cylindrical body produced by a method according to claim 1 is impregnated with a solution comprising collagen dissolved and/or dispersed in a solvent, and then at least one method is employed to fix the collagen by gelling, crosslinking or drying.