PROBLEM TO BE SOLVED: To solve the problem with a conventional fluid-conveying device, wherein sometimes it is not possible to accurately discharge a set amount of fluid to be discharged, because of deterioration of an elastic tube over time.SOLUTION: The fluid-conveying device includes a fluid-conveying cartridge and a fluid-conveying drive unit. The fluid-conveying cartridge is provided with: an elastic tube for conveying a fluid a pressing part that moves between a first position that constricts the conveyance path of the fluid by pressing the elastic tube from the outside, and a second position that does not constrict the path and a housing part for housing a drive mechanism that moves the pressing part.COPYRIGHT: (C)2013,JPO&INPIT【課題】流体輸送装置において、弾性チューブの経年劣化により設定された吐出量の流体を正確に吐出できない場合がある。【解決手段】流体輸送装置は、流体輸送カートリッジおよび流体輸送駆動ユニットを備える。流体輸送カートリッジは、流体を輸送する弾性チューブと、弾性チューブを外部から押圧して流体の輸送路を狭窄する第1位置と、狭窄しない第2位置との間で変位する押圧部と、押圧部を変位させる駆動機構を収容する収容部とを備える。【選択図】図3