Nasointestinal tube

The nasointestinal tube comprises a nasointestinal tube body, a guide wire, a connector and a plurality of identification rings, the nasointestinal tube body comprises a closed end and a connecting end which are arranged at the two ends of the nasointestinal tube body in the length direction respectively, a plurality of holes are formed in the side wall of the closed end, the connecting end is provided with a connecting port, and the connector comprises a connecting tube. One end of the connecting pipe is connected with the connector, and the other end is provided with an adapter; the front end of the guide wire penetrates through the connector and then extends into the nasointestinal tube body, a limiting block is arranged at the tail end of the guide wire and detachably connected with the adapter, the multiple identification rings are annular holes evenly formed in the nasointestinal tube body at intervals, and B-ultrasonic developing agents are arranged in the identification rings. The identification ring