PROBLEM TO BE SOLVED: To provide a liquid medicine feeding device capable of preventing waste due to occurrence of remaining medicine in a liquid medicine bottle and of reducing labor for manually measuring liquid medicine.SOLUTION: A liquid medicine feeding device for feeding liquid medicine from a liquid medicine bottle to a medication bottle through a tubular member comprises: a weight detection part for detecting a liquid medicine shortage state meaning that the liquid medicine in the liquid medicine bottle is insufficient and a control part for, when the weight detection part detects the liquid medicine shortage state, comparing a remaining amount of the liquid medicine left in the liquid medicine bottle with a non-supply amount of the liquid medicine not fed in the medication bottle, determining that it is possible to inject the liquid medicine left in the liquid medicine bottle into the medication bottle if the remaining amount of the liquid medicine is equivalent to or less than the non-supply amount, or determining that it is impossible to inject the liquid medicine left in the liquid medicine bottle into the medication bottle if the remaining amount of the liquid medicine exceeds the non-supply amount.COPYRIGHT: (C)2014,JPO&INPIT【課題】水剤ボトル内の残薬の発生による無駄を防止でき、かつ手作業で水剤を計測する手間を削減できる、水剤供給装置を提供する。【解決手段】水剤ボトルから投薬ボトルに水剤を管状部材を介して供給する水剤供給装置は、水剤ボトル内の水剤が不足する水剤不足状態を検知する重量検出部と、重量検出部が水剤不足状態を検知したとき、水剤ボトル内に残存する水剤の残量と、投薬ボトルに未だ供給されていない水剤の未供給量と、を比較し、水剤の残量が未供給量以下であれば水剤ボトル内に残存する水剤の投薬ボトルへの注入が可能であると判断し、水剤の残量が未供給量を超えていれば水剤ボトル内に残存する水剤の投薬ボトルへの注入が不可であると判断する制御部とを備える。【選択図】図9
