PROBLEM TO BE SOLVED: To provide an injector operation detection device which is applicable to an injector for actual use and is capable of objectively determining a sucking or pressing state.SOLUTION: An injector operation detection device 1 for detecting a sucking or pressing-in operation of a plunger 120 in an injector 100 has a female joint 52 joined to a nozzle head 116 of the injector 100 and has a male joint 60 joined to a needle base 132 of an injector needle 130, and a coupling vessel 70 disposed in a state closed to the outside to connect the female joint 52 and the male joint 60. A detector which detects pressure, flow velocity, or a flow rate of a fluid moving in the injector is installed in one of the coupling vessel 70, the female joint 52, and the male joint 60.COPYRIGHT: (C)2013,JPO&INPIT【課題】実際に使用する注射器に適用することができ、且つ吸引又は押圧状況を客観的に判断することが可能な注射器操作検出装置を提供する。【解決手段】注射器100におけるプランジャ120の吸引又は圧入操作を検出するための注射器操作検出装置1であって、注射器100の筒先116に雌接合部52を接合すると共に、注射針130の針基132に雄接合部60を接合し、この雌接合部52と雄接合部60の間に、外部から閉ざされた状態で連続させる連結容器70を配置する。この連結容器70、雌接合部52、雄接合部60のいずれかに、内部を移動する流体の圧力、流速又は流量を検出する検出器を設置する。【選択図】図1
