PROBLEM TO BE SOLVED: To embed a reamer needle in a tube and completely cover it in a process of collecting a drug solution and seal it in a process of collecting and administering a drug solution, so that the drug solution leaks out or is injured by a reamer needle. Provided is a closed system dispensing medication device without risk. A closed system dispensing and dispensing device includes a push barrel and a connection base, the push barrel includes an outer cylinder, an inner cylinder and a push rod, the inner cylinder is provided in the outer cylinder, and the push rod is vertically movable. Is provided in the inner cylinder, the outer cylinder includes an intake pipe, the inner cylinder includes a chemical liquid suction pipe, the connection base includes a connection cover, two reamer needles, an elastic valve and a water stop member, and the elastic valve is The water blocking member is provided in the connection cover and selectively covers the outer sides of the two reamer needles, and the water blocking member is provided in the connection cover and corresponds to the internal space of the reamer needle corresponding to the intake pipe. doing. [Selection diagram] Figure 1【課題】リーマ針を管内に埋め込むとともに、薬液を採取する過程においては完全に覆い、薬液の採取と投薬の過程においては密閉するので、薬液が外に漏れたり、リーマ針によってけがをしたりするリスクが発生しない密閉システム調剤投薬装置を提供する。【解決手段】密閉システム調剤投薬装置は、プッシュバレルと接続ベースを含み、プッシュバレルは、外筒、内筒及びプッシュロッドを含み、内筒は外筒内に設けられ、プッシュロッドは上下移動可能に内筒内に設けられ、外筒は吸気管を含み、内筒は薬液吸入管を含み、接続ベースは、接続カバー、２本のリーマ針、弾性弁及び止水部材を含み、弾性弁は接続カバー内に設けられるとともに、２本のリーマ針の外側を選択的に覆い、前記止水部材は、前記接続カバー内に設けられるとともに、前記吸気管に対応する前記リーマ針の内部空間に対応している。【選択図】図１
