The invention belongs to the technical field of
food processing equipment, and particularly relates to an air bag anti-
reflux cannula for gastroscope treatment, the air bag anti-
reflux cannula comprises a sleeve
assembly, the sleeve
assembly comprises a gastroscope sleeve, and the outer side of one end of the gastroscope sleeve is uniformly provided with a plurality of sliding adjusting grooves; and the sliding type air bag
assembly is installed on the outer sides of the multiple sliding adjusting grooves, the sliding type air bag assembly comprises a first sliding block, the first sliding block is installed at one end of each sliding adjusting groove in a sliding mode, and the top of the first sliding block is rotationally connected with a first connecting rod arm. The anti-
reflux airbag capable of changing the expansion
diameter is adopted, only the inner wall of the esophageal inlet is slightly extruded in a
normal state, the anti-reflux
airbag can be pushed to expand through upward
upwelling of gas in the
stomach when reflux occurs, the esophageal inlet is temporarily and completely blocked, reflux is avoided, and after reflux is finished, the shrunk
esophagus can push the anti-reflux
airbag to reset, so that the anti-reflux effect is achieved. And a better anti-reflux effect can be achieved without highly expanding to continuously extrude the
esophagus inlet.