Weak-irritation triple-aspiration-prevention laryngeal mask which can be put into gastrointestinal tract through nose

Abstract

The invention discloses a weak-irritation triple-aspiration-prevention laryngeal mask which can be put into the gastrointestinal tract through the nose. The weak-irritation triple-aspiration-prevention laryngeal mask comprises a laryngeal mask body, a laryngeal mask bag, a bite block, an air duct, an air duct interface, an air duct opening, a suction tube, a suction tube opening, a tongue central fovea, a uvula fovea and a catheter groove, wherein the bite block is arranged above the laryngeal mask body, the laryngeal mask bag is arranged under the laryngeal mask body, the air duct interface is formed above the bite block, the back face of the upper-middle section of the laryngeal mask body is provided with the uvula fovea, the uvula fovea naturally extends along the back face of the laryngeal mask bag to form the catheter groove, the tongue central fovea is formed in the center of the front face of the laryngeal mask body, the air duct opening is formed in the laryngeal mask bag, the suction tube opening is formed in the lateral rear side of the tail end of the catheter groove, and the suction tube penetrates into the upper portion of the laryngeal mask body and descends to the suction tube opening through the laryngeal mask body. The weak-irritation triple-aspiration-prevention laryngeal mask is ingenious in structure and decreases the irritation of the laryngeal mask to the pharynx oralis and facilitates catheter indwelling and suction by being provided with the tongue central fovea, the uvula fovea and the catheter groove.

Description

technical field [0001] The invention relates to the field of medical aids, in particular to a weak stimulation triple anti-aspiration laryngeal mask which can be placed through the nose with a gastrointestinal tube. Background technique [0002] As a supraglottic ventilation device, the laryngeal mask has been widely used in anesthesia and emergency airway management. However, traditional laryngeal masks still have the following problems in the disclosed Chinese patents such as Patent No. 200920299927.4, 200920157717.1 and 200710102366.X: [0003] 1. Since the tongue is rich in nerve endings, especially in the central sulcus and boundary sulcus, the distribution of nerve endings is more concentrated, so stimulating the central sulcus and boundary sulcus of the tongue will cause strong nausea and discomfort, and the uvula will also There are abundant nerve endings in the distribution, so stimulating the uvula can also cause strong nausea and discomfort. The lingual part of ...

AI Technical Summary

Problems solved by technology

The lingual part of the traditional laryngeal mask just presses on the middle of the tongue body, and the middle of the tongue body is the location of the central groove and boundary groove of the tongue, and the palatal part of the laryngeal mask just presses on the uvula. The distribution of nerve endings in the location is extremely rich, and the response to stimulation is strong, so when the traditional laryngeal mask is placed, the patient's nausea and discomfort are unbearable

[0004] 2. The back of the traditional laryngeal mask is full and smooth. After the laryngeal mask is inserted, it is difficult to insert the gastric tube or duodenal feeding tube through the nose.

[0005] 3. Although the traditional double-pipe laryngeal mask is designed with a suction pipe, the suction pipe is set in the laryngeal mask, and the lumen is small, which is easy to block

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