PROBLEM TO BE SOLVED: To provide a low-cost fluid injection device and a fluid injection device set for injecting a fluid into a patient with a small force and enabling precise management of the amount of the fluid to be injected without problems of EMC or electro-magnetic compatibility.SOLUTION: A tube 11 through which the fluid passes is retained by a retaining plate 50. A pressurizing means 81 opposes to the retaining plate across the tube. A guiding means 71 guides the pressurizing means in the longitudinal direction of the tube while keeping a distance between the retaining plate and the pressurizing means constant. The tube is compressed and deformed by being held tightly between the retaining plate and the pressurizing means, and a place which is compressed and deformed in the tube is moved with the pressurizing means moving by being guided by the guiding means.COPYRIGHT: (C)2009,JPO&INPIT【課題】流動物を小さな力で患者に注入することができ、流動物の注入量を精度良く管理することができ、EMCの問題が生じることがなく、低コストな流動物注入装置及び流動物注入装置セットを提供する。【解決手段】流動物が通過するチューブ11が保持板50に保持される。加圧手段81がチューブを挟んで保持板と対峙している。案内手段71は、保持板と加圧手段との間の距離を一定に保ったまま加圧手段をチューブの長手方向に案内する。チューブを保持板と加圧手段とで挟んで圧縮変形させ、圧縮変形させるチューブの箇所を、案内手段により案内されて移動する加圧手段とともに移動させる。【選択図】図1
