PROBLEM TO BE SOLVED: To provide an anesthetic device capable of sending a predetermined amount of an anesthetic to a vaporization chamber with high accuracy even if the anesthetic has a low boiling point. An anesthetic device that sends liquid anesthetics stored in anesthetic tanks 21 and 22 to a vaporization chamber 5 by a metering pump 4 to vaporize the anesthetic and supplies the anesthetic to a patient, and discharges the metering pump 4. A cooler 3 is provided which cools the anesthetic on the upstream side up to the outlet 42 and keeps the anesthetic in the metering pump 4 in a liquid state. [Selection diagram] Fig. 1【課題】沸点が低い麻酔薬であっても、所定量の麻酔薬を精度高く気化室に送液可能な麻酔装置を提供する。【解決手段】麻酔薬タンク２１、２２に貯留された液状の麻酔薬を定量ポンプ４で気化室５に送り、麻酔薬を気化して患者に供給する麻酔装置であって、定量ポンプ４の吐出口４２までの上流側において麻酔薬を冷却し、定量ポンプ４内の麻酔薬を液状に維持する冷却器３を備える。【選択図】図１
