| 摘要 |
A method for manufacturing a catheter having an expandable member is provided, which includes preparing raw materials with highly elastic thermoplastic polyurethane (TPU), maturing the raw materials in a drier at 50˜55° C. for 20 days, so that the raw materials have 80˜95 A of hardness, preparing the expandable member, the first tube and the second tube, in forms before being coupled to each other, by cutting the raw materials to lengths corresponding to the expandable member, the first tube and the second tube, respectively, fitting an index ring at a predetermined location of the second tube, welding the expandable member to the first tube, and welding the expandable member with the second tube using a high-frequency welding machine, connecting a second end of the first tube to a first side of the manifold, and connecting a second end of the second tube to a second side of the manifold, forming a shape and a size of the expandable member, drying an interior of the expandable member and the second tube and maturing the expandable member for 24 hours in the drier at 50˜55° C., conducting a pressure test regarding the expandable member, inspection of connection state between the expandable member, the first tube, the second tube, and the manifold, drying the interior of the expandable member and the second tube and maturing the expandable member for 48 hours in the drier at 50˜55° C. |
