Back-stream preventing gastroscope casing tube

Abstract

The invention relates to the technical field of medical apparatus, in particular to a gastroscope bushing which can prevent backstreaming and miss inhalation during the gastroscope examination. The gastroscope bushing is composed of a bushing (1), a bushing fixing buckle (2), a cardia gasbag (3), a gullet gasbag (4), two gasbag inflation tubes (5), a corresponding air pressure indicating gasbag (6) and an inflation valve (7), wherein, the bushing (1) takes the shape of a hollow column and is sleeved outside the gastroscope and the tail end of the bushing (1) is provided with a ring-shaped grasping ring (1.1); the bushing fixing buckle (2) is positioned at the top end of the bushing and the top end of the bushing is fixed at the top end of the gastroscope by the clamping of a pair of biopsy forceps; the cardia gasbag (3) can plug a cardia mouth after being inflated, thereby preventing gastric content from backstreaming; the bushing can be fixed in the gullet, so as to prevent the cardia gasbag from displacing after the gullet gasbag (4) is inflated; the front ends of two gasbag inflation tubes (5) are respectively connected and communicated with the cardia gasbag and the gullet gasbag, and the rear ends thereof dissociate outside the tail end of the bushing and are connected with the inflation valve (7) by the air pressure indicating gasbag (6) for the inflation of the gasbag. The gastroscope bushing has simple structure and convenient use and is capable of preventing the backstreaming and miss inhalation risks of patients with full stomach during the gastroscope examination effectively.

Description

technical field [0001] The invention relates to the technical field of medical devices, and relates to a gastroscope sleeve tube for preventing reflux and aspiration during gastroscopic examination of a patient with a full stomach. Background technique [0002] Gastroscopy is a common inspection item in hospitals now. Its function is to check the upper gastrointestinal tract under direct vision and to perform some treatments. This inspection is a mature inspection project. The adult esophagus is generally 25-30cm long, from the incisors to the end of the esophagus, it is 40-45cm, and the diameter of the adult esophageal lumen is 15-25mm. The esophagus has certain expansibility, and the diameter can reach about 30mm when fully expanded. The diameter of gastroscopy is usually 12mm, and the depth of gastroscopy generally does not exceed 100cm. Since gastroscopy will induce the examinee to vomit, and the need to inflate the digestive tract during the examination will also caus...

AI Technical Summary

Problems solved by technology

However, the effect of the above method is not obvious when the gastric content persists. As long as there is gastric content, reflux cannot be completely avoided, so the risk of reflux and aspiration during gastroscopy in patients with a full stomach cannot be completely eliminated

The risk of gastroscopy for patients with a full stomach limits the scope of gastroscopy to a certain extent

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