Controllable benign esophageal stricture and cardia achalasia continuous dilator

The utility model relates to a controllable benign esophageal stricture and cardia achalasia continuous dilator, which consists of a bracket, a sacculus and an inflation pipe, wherein the bracket is cylindrical and penetrating through up and down; the sacculus is cylindrical and fixedly covers the outer surface of the bracket; and the inflation pipe is communicated with the sacculus. The controllable benign esophageal stricture and cardia achalasia continuous dilator disclosed by the utility model has the advantages that the controllable benign esophageal stricture and cardia achalasia continuous dilator can be put at a narrow position for a long time and used for dynamically dilating the narrow position; the pain of a refractory esophageal stenosis patient, which is caused by reasons that the repeated dilation effect is poor and the patient is required to accept operative treatment, can be avoided; the pain of a cardia achalasia patient, which is caused by repeated dilation or the common bracket, can be reduced; the probability of operation is reduced; and the dilator is simple in structure, convenient to operate and relatively low in cost and has a wide clinical application prospect.