Anti-reflux infusion device

The utility model discloses an anti-backflow infusion device, and belongs to the technical field of medical equipment. The anti-reflux infusion device comprises an infusion tube and an anti-reflux valve, the anti-reflux valve comprises a valve body, a one-way valve and two first magnetic structures, and the two first magnetic structures are located on the two sides of the one-way valve in the first direction respectively and connected with the one-way valve respectively. The magnetic poles, close to the one-way valve, of the two first magnetic structures are the same, so that the two first magnetic structures repel each other to provide pulling force in the direction away from the center of the one-way valve for the one-way valve, and deformation which is difficult to recover due to the fact that the one-way valve is extruded when liquid flows back can be avoided; the deformation is prevented from influencing the infusion function of the anti-reflux infusion device, so that the stability of the anti-reflux infusion device can be improved.