Biopsy sampling device for digestive system department

The biopsy sampling device comprises a main pipe and a branch pipe connected to the main pipe, the end, away from the branch pipe, of the main pipe is in threaded connection with a probe, a sampling opening is formed in the probe, the other end of the main pipe is in threaded connection with an end cover, a sampling mechanism is arranged in the probe, a through hole is formed in the end cover, and a sleeve rod is slidably arranged in the through hole; the loop bar is in transmission fit with the sampling mechanism; the end, away from the main pipe, of the branch pipe is provided with a suction cylinder. Negative pressure is formed in the probe through the suction cylinder. According to the biopsy sampling device for the digestive system department, when biopsy sampling is carried out, the sampling size is easy to control, the situation of excessive trauma cannot be caused, and the situation that sampling is difficult due to the smooth tissue surface can be avoided in the mode that diseased tissue is sucked in