The present invention provides a medical fluid dispenser.Medical fluid to be additionally administered to anadministration target such as a patient is supplied into aballoon, when a button is operated. As medicalfluid issupplied into the balloon, the balloon inflates to store themedical fluid therein. The inflated balloon contracts usingits own restoring force to discharge the medical fluid thathas been stored therein. Thereby, anadditionaladministration of medical fluid can be continued for apredetermined time period without the need for repeatedlyoperating the button.
