MEDICAL THREE-DIMENSIONAL STRUCTURE, PROCESS FOR PRODUCING THE SAME AND PRODUCTION APPARATUS

摘要

A medical three-dimensional structure comprised of a biocompatible biodegradable resin, which requires a resolution of 50 mum or less in molding. There is provided a process comprising filling a minute syringe with fine granules of a biocompatible biodegradable resin and melting the resin; forming one of two-dimensional slice layers by controlling the discharge of molten biodegradable resin through a nozzle and the plane-direction move of molding stage disposed opposite to the nozzle in accordance with the plane configuration data of a multiplicity of two-dimensional slice layers constituting a three-dimensional structure; effecting spacing movement of the molding stage in the longitudinal direction as much as the thickness of one of the two-dimensional slice layers; and thereafter repeating similar operations, thereby forming a three-dimensional structure. By this process, there can be provided an extremely fine medical three-dimensional structure comprised of a biocompatible biodegradable resin, which can be used as a body implant type therapeutic tool or therapeutic auxiliary tool.