Trachea cannula

Abstract

The invention relates to a medical flexible tube, in particular to a trachea cannula, which comprises a flexible tube body, wherein the tooth biting area of a patient at the outer side of the flexible tube body is sheathed with a hard tube, and the interior of the wall of the flexible tube is embedded with a spiral memory alloy line. The trachea cannula has the advantages that the outer side of the flexible tube is sheathed with the hard tube; after the cannula is inserted into the body of the patient, the hard tube is arranged in the tooth biting area of the patient, so the problem of blockage of the flexible tube due to the tight biting of teeth during the therapy of the patient is effectively prevented, the whole structure is simple, and the convenience and practicality are realized; the titanium-nickel memory alloy material embedded into the wall of the flexible tube has the characteristics of high strength, good toughness, corrosion resistance, no poisonous and side effects, long-term contact with people, and super-flexible support force and restoration force, the memory alloy material is conveniently arranged in the trachea, and the certain force is applied to the expansion part during the shape restoration, so the falling is avoided.

Description

technical field [0001] The invention relates to a medical hose, in particular to a tracheal intubation tube. Background technique [0002] At present, in the treatment of critically ill patients, inserting a tracheal tube through the mouth is the most commonly used way to establish an artificial airway. For example, in the well-known domestic clinical cardiopulmonary resuscitation, one of the most commonly used rescue measures is to insert a breathing tube into the patient through the mouth In the trachea, enhance assisted breathing for the patient. Because it needs to adapt to the curvature of the airway in the human body, the above-mentioned tube body inserted into the patient's body is usually made of a material with good flexibility. However, in actual use, after the tube body is inserted into the patient's body, it is easy for the patient to The phenomenon of teeth clenching occurs, and the use of a tube body with poor rigidity is easy to be occluded by the patient's t...

AI Technical Summary

Problems solved by technology

Because it needs to adapt to the curvature of the airway in the human body, the above-mentioned tube body inserted into the patient's body is usually made of a material with good flexibility. However, in actual use, after the tube body is inserted into the patient's body, it is easy for the patient to There is a phenomenon of teeth clenching, and the use of a tube body with poor rigidity is easy to be bitten by the patient's teeth, resulting in occlusion of the tube body, resulting in interruption of breathing or failure of fluid input into the patient's body, etc.

In addition, when a malignant or benign tumor causes airway obstruction in a patient, it is difficult for the common trachea to pass through the narrow part of the obstruction due to the narrowing of the airway.

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