< Topic >The injection device of the liquid medicine which purge can do the air inside the path which the liquid medicine where the tonnage differs choice and it is possible with one injector, encounters to injection easily to make inject, securely at brief is offered.SolutionsThe multiple flexible pipes where capacity differs inside are internalized, the case itself and with the slider 5 which slides on the lid and the lid which stop the opening the device 1 computer is formed, the pushing is overpowered the pushing pressure body which is laid out the respective flexible pipe in each flexible pipe, the convex spine of the surface of each pushing pressure body has extended from the lid. Making correspond with each flexible pipe on back of the slider, 5 the concave condition engagement section is formed, makes slider move 5, by the fact that each concave condition engagement section and the convex spine are made to engage appropriately, inside each flexible pipe while halting or the other flexible pipe summing up the liquid medicine which flows with the liquid medicine which flows, supplies the liquid medicine of the desire tonnage, purge does the air inside path or that the liquid medicine flows into all flexible pipes.< Choice figure >Drawing 1【課題】量の異なる薬液を一つの注入器で選択的かつ容易に注入させることができ、注入に際する経路内のエアを短時間で確実にパージすることのできる薬液の注入装置を提供する。【解決手段】内部に流量の異なる複数のパイプを内蔵し、ケース本体と、その開口部を閉止する蓋体および蓋体上をスライドするスライダ5とで装置1本体が構成され、各パイプにはそれぞれパイプを押圧する押圧体が配置され、各押圧体の表面の凸状突起部が蓋体から突出している。スライダ5の裏面には各パイプと対応させて凹状係合部が形成され、スライダ5を移動させ、各凹状係合部と凸状突起部を適宜係合させることで、各パイプ内を流れる薬液を停止もしくは他のパイプ内を流れる薬液と合算して所望量の薬液を供給し、あるいはすべてのパイプ内に薬液が流れるようにして、経路内のエアをパージする。【選択図】図1
