| 摘要 |
PROBLEM TO BE SOLVED: To provide a connecting instrument (1, 1') capable of showing clarity (distinction) of an opening/closing operation of an adapter 10 and a liquid passage LP of a mixed injection member 20.SOLUTION: A connecting instrument comprises a connection adapter 10 and a connection cover (5, 5'). The connection adapter 10 forms a flange 12 at a connection part 13 near a distal end DE side. An engaging part 12K is projected from the flange 12 in one direction of a side part S. The connection cover (5, 5') forms a groove 5M at an upper part 5U from an upper part U side to a lower part D side in one direction of the side part S. The groove 5M includes an upper groove 5MU, a middle groove 5MM, and a lower groove 5MD. An upper stopper 5MSU is formed between one end part of the upper groove 5MU and one end part of the middle groove 5MM, and a lower stopper 5MSD is formed between one end part of the middle groove 5MM and one end part of the lower groove 5MD. |
