| 摘要 |
PROBLEM TO BE SOLVED: To perform welding without coloring the materials of a port and a housing of a body liquid treatment device and also without using a laser absorbent.SOLUTION: In a body liquid treatment device, a nonwoven fabric 5 is disposed between a terminal side of a port 2 and a base end side of a housing 3, and a welded portion of the port 2, the housing 3 and the nonwoven fabric 5 is irradiated with a laser beam, so that the nonwoven fabric 5 is melted, and the terminal side of the port 2 and the base end side of the housing 3 are welded together. The port 2, the housing 3 and the nonwoven fabric 5 are formed from the same material, and the nonwoven fabric 5 absorbs a laser beam to be melted, so that the component materials of the port 2 and the housing 3 are melted to be welded together. |
