Outer sleeve for gastroscope

Abstract

The invention discloses an outer sleeve for a gastroscope. The whole outer sleeve is in the shape of a hollow tube. The inner diameter of the sleeve is 1.1 cm, the inner circle and the outer circle of the sleeve are not concentric, the sleeve with uneven wall thicknesses is formed, the thickness of the position where the wall is thick is 5 mm, and the thickness of the position where the wall is relatively thin is 3 mm. A washing channel is formed in the position, wherein the wall is thick, in the sleeve wall, and the washing channel extends to the bottom of the outer sleeve from the inlet end of the gastroscope. The position, close to a gastroscope inlet, of the wall where is thin is provided with a water filling pipe. The gastroscope inlet and an inlet of the washing channel are provided with silica gel plugs, and the silica gel plugs are covered with cross-shaped openings in the centers. On one hand, the washing channel in the outer sleeve can be used for washing blood, digestive juice, mucus and the like within view, and the view is kept clear; on the other hand, instruments can be delivered, the complexity and the difficulty for endoscope part treatment can be lowered, normal saline and the like are filled through the water filling pipe, the friction force between the outer sleeve and the endoscope can be lowered, the endoscope can move more smoothly and more freely, and the arranged plugs can effectively prevent injected liquid or gastric content from overflowing.

Description

Technical field [0001] The invention relates to the technical field of medical care, in particular to a new type of gastroscope outer tube and its application for clamping foreign bodies in the esophagus. Background technique [0002] The existing single-channel gastroscope only allows a single instrument to pass through. When flushing is required during the operation, the surgical instrument must be withdrawn from the biopsy channel, and then saline, etc. must be injected to flush the field of vision. Repeated replacement of the instrument wastes time and may miss the operation. Good opportunity. Endoscopic treatments are becoming more and more complicated. One treatment may require repeated visits to the endoscope, causing great pain to the patient. [0003] However, the existing dual-channel gastroscope is expensive and costly, which is not conducive to popularization and application. [0004] In order to avoid the discomfort caused by multiple entry and exit of the gastroscope,...

AI Technical Summary

Problems solved by technology

[0006] However, during the flushing process of the above-mentioned gastroscope overtube, on the one hand, the flushing power and accuracy are not good, and on the other hand, the flushing liquid is prone to overflow from the endoscope port. The existing solution is to install an air bag in the middle of the casing , such as a gastroscope overtube disclosed in Chinese patent CN101066204A, the air bag is inflated and bulged to prevent flushing fluid or gastric contents from overflowing

This kind of gastroscope overtube has complex structure and cumbersome operation

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