Expansion lumen device matched with fallopian tube lens

The invention relates to the technical field of medical apparatus and instruments, in particular to a tubal dilation device matched with a salpingoscope, which comprises an outer tube, a small cavity supporting mechanism used for supporting the top wall of the salpingoscope and a large cavity grasping forceps mechanism used for opening the side wall of the salpingoscope are slidably connected in the outer tube from top to bottom, and the small cavity supporting mechanism is matched with the large cavity grasping forceps mechanism. The rear side of the top of the outer tube is connected with a pushing framework through a pushing mechanism, the pushing framework is used for controlling the small-cavity supporting mechanism and the large-cavity grasping forceps mechanism, the rear side of the bottom of the outer tube is connected with an adjusting framework, and the adjusting framework is connected with the large-cavity grasping forceps mechanism through an adjusting mechanism. The problems that in the prior art