Patent ID: 8328826
Filing Date: 2012-12-11
Classification: A61L

Abstract:
1. A precursor for producing a tissue regenerating instrument that regenerates a tissue, comprising: a tube made of a biodegradable material provided with a lumen in a longitudinal direction; a single rod made of a biodegradable material swellable with a softening solvent, localized and fixed to an inner wall of the tube substantially parallel to the longitudinal direction of the tube; and an adhesive that fixes said single rod to the inner wall of the tube, wherein the rod comprises a bundle of a plurality of threads made of a biodegradable material arranged substantially in parallel, at least portions of adjacent threads being adhered to each other, and in a non-swelled state has an occupied cross-sectional area perpendicular to the longitudinal direction that is smaller than a cross-sectional area of the lumen of the tube, the occupied cross-sectional area perpendicular to the longitudinal direction of the rod in a saturated swelled state with the softening solvent is substantially the same as the cross-sectional area of the lumen of the tube; and said adhesive being provided only on a portion of the inner wall of are ion of the tube in a range of length of a ratio of 0.01 to 50% from one end of the tube, when a longitudinal length of the tube is taken as 100%.