Separate edge cup type air duct capable of sealing tissue around throat

Abstract

The invention provides a medical cannula type non-inflatable throat cup air duct which allows a tracheal catheter to be conveniently inserted and which automatically withdraws after the catheter is inserted. A cup fits an anatomical structure around a throat in shape, and is closely attached to surrounding tissues through a sealing ring. Through a separate edge buckle design at one side of a main air duct, the tracheal catheter can be inserted conveniently, and the cup type air duct can withdraw conveniently after the tracheal catheter is inserted. An epiglottis holder, corresponding to the position of epiglottis, is arranged inside the throat cup. The main air duct is provided with a tongue root stand corresponding to the position of a tongue root. The outer sidewall of the main air duct is provided with a C stomach tube slot. When a stomach tube is used, the stomach tube can be separated from the main air duct according to needs. According to the invention, the cup type air duct better fits the anatomical structure around the throat. The cup structure is made from flexible manmade rubber, and the sealing ring is additionally adopted. In this way, the air duct exhibits better air tightness, and will not oppress or damage soft tissues around the throat.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a cup-type ventilator at the mouth of the throat, which can be inserted into a tracheal catheter, used in ventilation therapy. . Background technique [0002] During anesthesia and first aid, the patient loses spontaneous breathing, and artificial ventilation is required for the patient. In the current known technology, artificial ventilation is mainly completed by two kinds of airway products: the lower airway (tube) at the throat and the upper airway at the throat. [0003] Existing upper throat airway can be divided into two types: inflatable bag type and non-inflatable bag type two kinds of throat upper airway. The non-inflatable airway can be further divided into soft rubber type and hard rubber type supralaryngoscopic airway. [0004] The sublarynx airway is called the stable airway because the ventilation method is to insert the endotracheal tube into the main ...

AI Technical Summary

Problems solved by technology

Poor airtightness can lead to airway "leakage" during ventilation, which directly affects the effect of ventilation therapy. Severe air leakage will cause ineffective ventilation and bring huge risks to patients;

[0007] 3. During the use of the existing upper airway at the throat, if the "epiglottis turns back" under the action of the ventilation airflow during ventilation, the phenomenon of epiglottis blocking the airway will occur, affecting the smoothness of the airway and even airway obstruction ;

[0008] 4. Under general anesthesia, the tongue body becomes abnormally soft and "paralyzed" towards the root of the tongue, which will affect the physical stability of the airway during use;

[0010] To sum up: the existing upper laryngeal airway has difficulty in inserting the endotracheal tube; the problem of airtightness; complications such as postoperative sore throat caused by the pressure of the inflatable upper laryngeal airway on the nerves of the surrounding tissues problems; the damage to the pharyngeal stenosis caused by the insertion of the upper airway of the hard plastic laryngeal mouth; the risk of airway obstruction caused by the reflexion of the epiglottis during ventilation; the problem of stability during use; question

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