Patent ID: 8512284

Claim:
A medical fluid dispenser, comprising: a medical fluid inlet line into which medical fluid is supplied from a medical fluid supply source; a medical fluid outlet line through which the medical fluid is discharged toward an administration target; a first branch line and a second branch line branching off from the medical fluid inlet line, the first branch line and the second branch line being connected to the medical fluid outlet line; a medical fluid pumping bag provided on the first branch line, the medical fluid pumping bag storing therein medical fluid flowing along the first branch line, and being compressed by external force applied thereto to send the stored medical fluid under pressure to the medical fluid outlet line; and temporary storage and supply means for temporarily storing the medical fluid sent under pressure from the medical fluid pumping bag and continuously discharging the temporarily stored medical fluid through the medical fluid outlet line, wherein the temporary storage and supply means comprises: a temporary storage balloon provided on the medical fluid outlet line, wherein the temporary storage balloon inflates as medical fluid sent under pressure from the first branch line is drawn into the temporary storage balloon, and the temporary storage balloon discharges continuously the temporarily stored medical fluid using contractile force by which the temporary storage balloon is returned to an original state thereof, when the external force applied to the medical fluid pumping bag is released.