Multipurpose medical anti-reflux connector

The utility model relates to a multipurpose medical anti-reflux connector, which comprises a tube body. The anti-reflux connector is characterized in that the tube body is provided at two ends with a liquid inlet interface and a liquid outlet interface, and provided with an anti-reflux device therein. In consideration of anti-reflux effect, the anti-reflux device is an elastic flexible sheet bending towards the liquid outlet interface direction. The lower part of the elastic flexible sheet is fixed on the inner wall of the tube body, and the upper part of the elastic flexible sheet has a circular arc shape and is not contacted with the inner wall of the tube body. The multipurpose medical anti-reflux connector has the advantages of simple structure, convenient operation, good service effect, economical efficiency and durability, and low cost, prevents cross infection, and can be applied in transfusion systems as well as flow guide devices.