The gastrointestinal drainage puncture device comprises a functional box and a
drainage catheter, a puncture needle used for guiding is arranged on the side face of one end of the
drainage catheter, a one-way valve is fixedly connected to the side face of the
drainage catheter, and a cleaning mechanism used for cleaning food residues is arranged at the end, away from the drainage
catheter, of the one-way valve. The cleaning mechanism comprises a functional box arranged on the side face of the one-way valve, a
threaded rod is rotationally connected into the functional box, the
threaded rod is in threaded connection with a stand column, a motor drives a cleaning
brush to slide in a reciprocating mode, normal
saline is directionally conveyed in cooperation with a spraying strip moving up and down, and the synergistic effect of mechanical stripping and liquid flushing is formed. Stubborn residues such as vegetable
powder and
starch particles attached to the tube wall can be accurately removed, the limitation that only loose residues are removed through conventional normal
saline flushing and injection is broken through, the situation that the hole
diameter of a tube cavity is reduced due to residue accumulation is avoided, the risk of complete blockage is reduced from the source, repeated cleaning or dismounting is not needed, the re-puncture probability caused by blockage is reduced, and patient wounds are relieved.