Anti-backflow infusion tube

The utility model relates to an anti-backflow infusion tube which comprises a tube body. The upper end of the tube body is connected with a liquid medicine bottle, and the lower end is provided with an injection needle; and an anti-reflux mechanism for sealing the interior of the tube body after the liquid medicine in the liquid medicine bottle is injected into the body of a patient is arranged at the position, close to the lower end, of the tube body. The transfusion device has the advantages that the transfusion tube is automatically closed after liquid medicine injection is finished, the phenomenon that blood in the body of a patient flows back along the transfusion tube is prevented, the health and safety of the patient are guaranteed, and the workload of nursing staff is relieved. 本实用新型涉及一种防逆流输液管，包括管体；所述管体上端连接药液瓶，其下端设置有注射针头；所述管体上靠近下端的位置处设有在所述药液瓶内的药液注入患者体内后将所述管体内部封闭的防逆流机构。本实用新型的有益效果是：在药液注射完毕后自动将输液管关闭，防止患者体内血液沿输液管逆流的现象发生，保障患者的健康安全且减轻工作护理人员的工作量。