I a drug infusion device (100), body (1), a movable member (11), preparation and storage member (10), the first detection unit (28). The movable member (11) is movably mounted to the longitudinal body (1). Formulations receiving member (10), preparation syringe containing a drug which is mounted a movable member (11) has mounting section (16) needle for injection (17) at one end, is injected into a living body therein (50 I to accommodate the). (28), provided in (11) the movable member, to detect a needle for mounting (17) of the needle mounting portion (16) and (16) the first detector. Drug infusion device (100) is able to increase the accuracy of attachment detection of the formulation and syringe or needle /.薬剤注入装置(100)は、本体(1)と、可動部材(11)と、製剤収納部材(10)と、第1検出部(28)と、を備える。可動部材(11)は、本体(1)の長手方向に対し移動可能に装着される。製剤収納部材(10)は、可動部材(11)に装着され、一端側に注射用の針(16)の装着部(17)を有し、内部に生体に注入する薬剤を含む製剤シリンジ(50)を収納する。第1検出部(28)は、可動部材(11)に設けられ、針(16)の装着部(17)に対する針(16)の装着を検出する。薬剤注入装置(100)は、針及び/又は製剤シリンジの装着検出の精度を高めることができる。
