PROBLEM TO BE SOLVED: To provide a liquid medicine administration device capable of performing liquid medicine administration with an appropriate liquid feed amount on the basis of a residual amount in a living body of the liquid medicine administered by another liquid feed instrument, etc., in consideration of the residual amount.SOLUTION: A liquid medicine administration device 300 includes a liquid feed part 100 for feeding liquid medicine to the inside of a users body, a second control part 50 for controlling a liquid feed operation by the liquid feed part, a liquid feed data acquisition part (a second communication part 40 and the second control part 50) capable of acquiring first data on a liquid feed amount of the liquid medicine fed to the inside of the body by the liquid feed part, and second data on a liquid feed amount of the liquid medicine fed by another liquid feed instrument other than the liquid feed part, and an arithmetic part 261 for calculating a residual amount of the liquid medicine in the body based on the first data and/or the second data, and calculating a scheduled liquid feed amount of the liquid medicine to be administered to the body based on the residual amount of the liquid medicine. The control part controls an operation of the liquid feed part so that the liquid medicine in the scheduled liquid feed amount calculated by the arithmetic part is fed to the body.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2018,JPO&INPIT【課題】他の送液器具等によって投与された薬液の生体内における残存量を考慮し、当該残存量に基づいた適切な送液量で薬液の投与を実施し得る薬液投与装置を提供する【解決手段】薬液投与装置300は、使用者の生体内へ薬液を送液する送液部100と、送液部による送液動作を制御する第2制御部50と、送液部が生体内へ送液した薬液の送液量に関する第1データ、および送液部以外の他の送液器具が生体内へ送液した薬液の送液量に関する第2データを取得可能な送液データ取得部(第2通信部40および第2制御部50)と、第1データおよび/または第2データに基づいて生体内における薬液の残存量を計算し、かつ、当該薬液の残存量に基づいて生体へ投与すべき薬液の送液予定量を計算する演算部261と、を有する。制御部は、演算部により計算された送液予定量の薬液が生体へ送液されるように送液部の動作を制御する。【選択図】図6
