Problem to be solved: to provide a medicine liquid supply apparatus capable of setting a lockout time and facilitating priming.Solution: the rapid administration section is connected between the inflow passage 111 and the outflow passage 112, and includes a chemical liquid storing section 113 for storing chemical liquid, a control section 114 for controlling the storage of chemicals in the chemical liquid storing section 113 and the delivery of chemicals from the chemical liquid storing section 113.The inflow passage 111 has a portion branched from the first flow passage 111a and the second flow passage 111b with a second flow passage 111b having a small flow passage cross-sectional area.The control section 114 has a first closed portion 141 capable of closing the first flow passage 111a, and a second closing portion 142 capable of closing the outflow passage 112 in association with the first closing portion 141 and allowing the outlet flow passage 112 to be opened and closed when the first flow passage 111a is closed.Diagram【課題】ロックアウトタイムの設定が可能で且つプライミングが容易な薬液投与装置を提供する。【解決手段】急速投与部は、流入流路１１１と流出流路１１２との間に接続され、薬液を貯留する薬液貯留部１１３と、薬液貯留部１１３への薬液の貯留及び前記薬液貯留部１１３からの薬液の送出を制御する制御部１１４とを備えている。流入流路１１１は、第１の流路１１１Ａと第１の流路１１１Ａよりも流路断面積が小さい第２の流路１１１Ｂとに分岐した部分を有する。制御部１１４は、第１の流路１１１Ａを閉止可能な第１の閉止部１４１と、第１の閉止部１４１と連動して流出流路１１２を閉止可能で、且つ、第１の流路１１１Ａが閉止された状態で、流出流路１１２を開閉可能である、第２の閉止部１４２とを有する。【選択図】図２
