| 摘要 |
PROBLEM TO BE SOLVED: To improve fittability with a simple structure without drastic change of a Luer-Lock. SOLUTION: In a syringe having a connection part formed at one end of a syringe, the connection part is constituted of an inner cylinder part 7 and an outer cylinder part 6. The inner cylinder part 7 is made up of a tapered Luer and the outer cylinder part 6 has a spiral ridge formed on the internal surface thereof and a rib-like protrusion 9 formed parallel with the axis of the outer cylinder part on the external surface thereof. |
