| 摘要 |
A method of aseptically joining tubes in a blood bag system and the like. This method comprises the steps of juxtaposing a first and second thermoplastic tubes on a pair of tube holders (21, 22), cutting with a cutter the tubes into cut end portions (11a, 12a) and main tube body portions (11b, 12b) respectively, rotating one of the tube holders (21, 22) so as aligning cut end faces of the main tube bodies (11b, 12b) of the first and second thermoplastic tubes, and at the same time aligning cut end faces of the cut end portions (11a, 12a) of the first and second thermoplastic tubes, withdrawing the cutter (30) from the cut end faces, and bringing cut end faces into tight contact to each other thereby welding the cut surfaces of the main tube body portions (11b, 12b) and at the same time welding the cut surfaces of the cut end portions (11a, 12a) so as to avoiding the scattering of blood and the like. An apparatus for carrying out the method is also disclosed. <IMAGE> |
