Multifunctional separation and suction device used in laparoscopic surgery

The invention discloses a multifunctional separation and suction device for laparoscopic surgery, and relates to the technical field of medical instruments. The device comprises a main sleeve and a mounting box, connecting rods are mounted on the outer surface of the main sleeve, the outer surfaces of the connecting rods are connected with the inner surface of the mounting box, a positioning sleeve is mounted on the inner surface of the main sleeve, a fixed sleeve is mounted on the inner surface of the positioning sleeve, and a sliding sleeve is mounted on the inner surface of the fixed sleeve. When the separating pincers need to be replaced, a rotating frame is driven to rotate by arranging a groove in a mounting box and mounting a rotating shaft in the groove and utilizing connection between a transmission gear mounted on the outer surface of the rotating shaft and an adjusting block, and then the rotating frame is mounted on the outer surface of a sliding sleeve; the threaded sleeve is connected with the o