Esophagoscopy instruments can be used for damage to the mucous membranes in the middle section of the eso pipe, filling defects, the esophagus cavity is narrow, get a pathological biopsy, etc.
An esophagoscopy is a procedure that allows your doctor to examine the inside of your esophagus using a long thin instrument called an endoscope. The endoscope contains a light and a camera that transmits pictures of the inside of your esophagus to a video screen.