| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a tube, an inner die, and an apparatus for manufacturing a tube which can easily mold a medical tube that selects a predetermined lumen at the time of exchange work and can insert a guide wire therethrough while allowing a fluid to adequately circulate therethrough.SOLUTION: A second member 120 of an inner die is provided so as to be advanceable to and retractable from a first member 110, and has a predetermined number of projecting portions 122a to 122e interposed between cavity portions 114a, 114b and the like. In the second member 120, a smaller number than the predetermined number of projecting portions 122c to 122e are formed at a first position in the advancing/retreating direction, and the predetermined number of projecting portions 122a to 122e are formed at a second position on a side closer to a base end than the first position. An apparatus for manufacturing a tube includes the inner die. A method for manufacturing a tube is a method for extruding and molding a resin medical tube with the use of the inner die.SELECTED DRAWING: Figure 8 |
