PROBLEM TO BE SOLVED: To inexpensively and simply detect clogging of a tube.SOLUTION: A fluid infusion device comprises: a tube through which a fluid flows a pump that supplies the fluid to the tube an electric resistance member that changes electric resistance in association with deformation of the tube and a determination part that determines the presence or absence of fluid clogging of the tube on the basis of a change in the electric resistance.COPYRIGHT: (C)2014,JPO&INPIT【課題】安価かつ簡便にチューブ内の詰まりを検出すること。【解決手段】流体を流動させるチューブと、前記チューブに前記流体を送るポンプと、前記チューブの変形に伴い電気抵抗が変化する電気抵抗部材と、前記電気抵抗の変化に基づいて前記チューブにおける前記流体の詰まりの有無を判定する判定部と、を備える流体注入装置。【選択図】図12