PROBLEM TO BE SOLVED: To provide a syringe kit for mixing two medical fluids capable of preventing stick and slip phenomena from being easily generated when the distal end part of one barrel and the distal end part of the other barrel are screwed together.SOLUTION: When a male screw 2C on the outer periphery of a connecting cylinder part 2B of a first barrel 2 and a female screw 4F on the inner periphery of a screw cylinder part 4D of a second barrel 4 are screwed with each other, and the inner tapered face 2D of the inner periphery of the connecting cylinder part 2B of the first barrel 2 is fitted to the outer tapered face 4E of the outer periphery of a nozzle part 4C of the second barrel 4, as at least one of the surface of the male screw 2C of the connecting cylinder part 2B of the first barrel 2, and the surface of the female screw 4F of the screw cylinder part 4D of the second barrel 4 is made roughened with a surface roughness Ra of 1.0-2.0, the stick and slip phenomena are prevented from being generated.COPYRIGHT: (C)2013,JPO&INPIT【課題】一方のバレルの先端部と他方のバレルの先端部とを相互に螺合させる際などに発生し易いスティックアンドスリップ現象を未然に防止できる二薬混合用シリンジキットを提供する。【解決手段】第1バレル2の接続筒部2Bの外周のオネジ2Cと、第2バレル4のネジ筒部4Dの内周のメネジ4Fとを相互に螺合させ、第1バレル2の接続筒部2Bの内周の内テーパ面2Dと第2バレル4のノズル部4Cの外周の外テーパ面4Eとを嵌合させる際、第1バレル2の接続筒部2Bのオネジ2Cの表面と、第2バレル4のネジ筒部4Dのメネジ4Fの表面の少なくとも一方がRa1.0~2.0の表面粗さで粗面化されているため、両者間のスティックアンドスリップ現象が未然に防止される。【選択図】図1
