Bioabsorbable tube and production method thereof

摘要

A bioabsorbable tube for regenerating nerve tissue can be produced easier than a conventional bioabsorbable tubes with low costs. A bioabsorbable tube is produced by: drying a solvent of a solution dissolved with an bioabsorbable polymer so as to form a sheet; cylindrically rolling the sheet so as to form an overlapped sheet; and heat sealing or solvent meld sealing the overlapped sheet part. Or a bioabsorbable tube having a two layered structure is produced by: freeze-drying a solvent of a solution dissolved with a bioabsorbable polymer so as to form a sheet; cylindrically rolling the sheet; non-freeze-drying a solvent of a solution dissolved with a bioabsorbable polymer so as to form a further sheet; cylindrically wrapping the non-freeze-dried sheet around the freeze-dried sheet so as to from an overlapped sheet; and heat sealing or solvent meld sealing the overlapped sheet.