Guide tube

Abstract

The invention provides a guide tube. The guide tube can enable an endoscope to easily pass through the throat so as to be inserted into the gullet, and simplify the cleaning and suction of the gullet or stomach; and in addition, the guide tube can be used together with the tube head, thereby shortening the treatment time and relieving the pain of patients. The guide tube is composed of a tube main body (1), a connector (4) and the tube head (3), wherein the tube main body (1) has an inner cavity which is through in the lengthwise direction; the connector (4) is arranged at the rear end part of the tube main body; the tube head (3) can be assembled and disassembled; a helical spring (2) is embedded into the side wall of the tube main body; a front end part (6) is cut slantways; the cross section of the tube head is circular, elliptic or long-circular; the front end side is provided with ribs (7), and the rear end side is provided with a flange part (8); and the lateral side of the rear end part of the connector is provided with a membranous sealing element (5) which is provided with a hole or slit.

Description

technical field [0001] The invention relates to an auxiliary instrument for inserting an endoscope through the pharynx in the medical field. Background technique [0002] Endoscopes are widely used for the diagnosis and treatment of diseases in the digestive tract, such as tumors of the stomach and esophagus, and varicose veins. However, the diameter of the currently used endoscope is about φ10 mm, so the insertion requires a skilled operator and the pain of the patient is very noticeable. Furthermore, depending on the technique, the endoscope may be taken out and inserted multiple times, which places a greater burden on the patient. [0003] On the other hand, in order to facilitate the insertion of the endoscope, commercially available Figure 6 The catheter shown in (a) achieves improved operability and reduced burden on the patient. This catheter is composed of a pipe main body 21 made of soft resin and a pipe head 23 having a flange portion 24 attached to the rear end...

AI Technical Summary

Problems solved by technology

[0010] The present invention is made through various researches in order to solve the problems of poor pharynx passability, air leakage from the catheter, and inability to use the tip of the existing catheter endoscope, and its purpose is to provide a An improved catheter that facilitates passage of the endoscope through the pharynx, simplifies cleaning and suction of the esophagus or stomach, and enables the use of a tube head, thereby shortening treatment time and reducing pain for patients

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