Venous catheter washing pipe connecting pipe

The utility model discloses a venous catheter wash pipe connecting pipe, which relates to the technical field of medical instruments and comprises a connector and an injector, the outer surface of a connecting shaft is fixedly connected with a second threaded shaft, a main flow channel is arranged in the connector, one end of the threaded shaft is fixedly connected with a rotating block, and one side face of a sliding block is fixedly connected with a pull rope. By arranging the main flow channel and the branch flow channel, tube punching and sealing operation can be carried out at the same time, the medical cost is reduced, double-cavity punching and sealing injection can be completed at the same time, and the probability of tube blocking is reduced; by arranging a connecting shaft, a second threaded shaft, a pressing shaft and a blocking block, two tube cavities can be alternately used, the occurrence rate of tube blocking can be effectively reduced, the safety coefficient is improved, by arranging a first