This creation system provides a kind of infusion device that portable return blood uniformly squeezes, and main characteristic is in what: the pressurizing unit of infusion device is by the components such as airbag, lower pressure plate and steel spring plate are formed under airbag, middle airbag and upper pressure plate and tray interior on box cover inside； When box cover and tray cover are closed, uniform extruding force can provide using the pressurizing unit system, rapid operation and safe and reliable person when patient being enabled to use. In addition, being equipped with a return blood device in box body, when the medical fluid conveying in medicinal fluid bag finishes, the perfusion tube of medicinal fluid bag one end linking is blocked using the stretching, extension of steel spring plate, to prevent person in the endovascular blood backflow to perfusion tube of human vein.本創作係提供一種便攜式止回血均勻擠壓之輸液裝置，其主要特徵在於：輸液裝置之擠壓裝置係由盒蓋內部之上氣袋、中氣袋及上加壓板與盒體內部之下氣袋、下加壓板及彈簧鋼板等構件所組成；當盒蓋與盒體蓋合時，利用該擠壓裝置係可提供均勻的擠壓力，令患者使用時操作省力且安全可靠者。另，盒體內設有一止回血裝置，在藥液袋內的藥液輸送完畢時，利用彈簧鋼板之伸展將藥液袋一端銜接之輸液管卡住，以防止人體靜脈血管內的血液回流到輸液管內者。
