Stepping-type esophagus dilatation balloon

Abstract

The invention discloses a stepping-type esophagus dilatation balloon. The balloon can be gradually pushed into a corresponding part of an esophagus, the pushing process is stable, and the pushing distance of each small step is not changed, so that the balloon can be accurately conveyed to a required part, and the discomfort of a patient can be alleviated. According to the technical scheme, the stepping-type esophagus dilatation balloon comprises a catheter, a balloon body and a pushing device used for pushing the catheter into the esophagus step by step, and the catheter penetrates through theinterior of the pushing device; the pushing device comprises a shell, a pushing pipe, an extrusion sleeve, a spring and a button, the pushing pipe is located in the shell, the catheter is located inthe pushing pipe, a clamping head capable of automatically opening is arranged at the front end of the pushing pipe, the clamping head is contracted in the extrusion sleeve in a natural state, and thecatheter is fixed in the pushing pipe due to contraction of the clamping head; and the pushing pipe can be pushed to drive the catheter to move forwards by pressing the button, then the clamping headis separated from the extrusion sleeve and opened, the push pipe is reset under the action of the spring after the button is loosened, and the clamping head enters the extrusion sleeve again.

Description

technical field [0001] The invention relates to the field of gastroenterology instruments, in particular to a step-by-step esophageal dilatation balloon. Background technique [0002] Esophageal stenosis is a digestive tract disease that can be caused by congenital esophageal stenosis (also known as congenital esophageal ring and esophageal web). In addition, secondary esophageal stenosis is more common in esophageal tumors, esophageal motility disorders, and anastomosis after esophagogastric anastomosis Stricture, esophagitis or scar stenosis caused by burns, etc. Dysphagia is the main symptom of esophageal stricture, in addition to pain when swallowing, weight loss, and regurgitation of food after eating. [0003] Esophageal stenosis is usually treated by balloon dilation. Balloon dilation is to insert a balloon that can be filled with air or water into the esophagus. To achieve the purpose of treating stenosis. [0004] However, the balloon used in the existing balloon...

AI Technical Summary

Problems solved by technology

[0005] In the existing balloon dilatation, with the assistance of X-ray angiography, the doctor manually pushes the catheter with the balloon into the patient's esophagus. Since the digestive tract in the human body is relatively sensitive, the balloon must be kept Slow and uniform speed, but it is difficult to grasp the strength and maintain stability when pushing with bare hands, which will not only lead to inaccurate position of the pushed balloon, but also may bring strong pain to the patient

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