The patient management liquefied medicine dosage device (10) the reciprocating pump (12) it has, the reciprocating pump (12), it possesses with the entrance which can be connected to compressed liquefied medicine source and the exit which can be connected to the patient. The clamp (38), with the closed position which closes pump outflow and the opening position which makes pump outflow possible it turns. The plunger of the pump upper part (48), the movable wall of the pump (26) with it possesses the end which contacts, with bulging position and decrease position it is movement possible. The button of the plunger upper part (50), with expansion position and pushing lowering position it is movement possible, in addition, it possesses the ledge. The ledge the clamp engaging the occasion where the button moved to pushing lowering position, makes the clamp to opening position move. The compressed spring (52), it is arranged between the plunger and the button. Until spring catch (60), the button (50) the return stop it engages the occasion where the button moved to pushing lowering position, it is released the catch release in the plunger (62) by, the button is kept there. Catch release (62), the plunger (48) spring catch is separated from the return stop of the button the occasion where it moves to decrease position. As the clamp is maintained at opening position regardless of the position of the button, the pump being simple, by maintaining the button at pushing lowering position regardless of the position of the plunger, quick priming (priming) it makes the movable tub, possible.患者管理液状薬投与装置(10)は往復ポンプ(12)を備え、往復ポンプ(12)は、加圧液状薬源に接続できる入口と、患者に接続できる出口とを有する。クランプ(38)は、ポンプ流出を塞ぐ閉位置と、ポンプ流出を可能にする開位置との間を回転する。ポンプ上方のプランジャー(48)は、ポンプの可動壁(26)と接触する端部を有し、隆起位置と低下位置との間を移動可能である。プランジャー上方のボタン(50)は、伸長位置と押下げ位置との間を移動可能であり、また、レッジを有する。レッジは、ボタンが押下げ位置に移動した際にクランプと係合して、クランプを開位置へと移動させる。圧縮ばね(52)は、プランジャーとボタンの間に配置される。ばねキャッチ(60)は、ボタンが押下げ位置に移動した際にボタン(50)の戻り止めと係合し、プランジャーにおけるキャッチリリース(62)によって解放されるまでボタンをそこに保持する。キ
