Laryngeal mask for esophageal blockage

Abstract

The invention provides a laryngeal mask for esophageal blockage, comprising a laryngeal mask breathing pipe, a stomach tube passage, a mask bag and a mask bag aerating tube; the end part of the mask bag is connected with a hollow esophagus tube provided with an aerating sleeve bag which is connected with an aerating valve by an aerating pipeline. The end part of the mask bag of the laryngeal mask for esophageal blockage is provided with the aerating sleeve bag, after the aerating sleeve bag is filled with air, the esophagus of the patient can be completely blocked so that the connection between the stomach and the throat and the respiratory tract is interrupted to avoid returning and error eating of the substances in the stomach; the laryngeal mask can prevent air from entering into the stomach to cause stomach flatulence while aerating at a normal pressure so as to greatly reduce complicating disease caused by the laryngeal mask, reduce pain of the patients and broaden the application range of the laryngeal mask.

Description

technical field [0001] The invention relates to a medical laryngeal mask, in particular to a laryngeal mask for esophageal obstruction. Background technique [0002] The laryngeal mask is a breathing device that is widely used in clinical anesthesia, especially in small operations that do not require high muscle relaxation. It can be inserted into the patient's throat, which is less irritating to the patient, and the patient can keep breathing spontaneously during the operation. [0003] see figure 1 , is a structural schematic diagram of one of the laryngeal masks in the known technology. The laryngeal mask currently used clinically is generally composed of a laryngeal mask ventilation tube 10 , a gastric tube channel 20 , a cuff 40 and a cuff inflation tube 30 . During the operation, the laryngeal mask is inserted into the patient's throat, the cuff 40 is placed at the junction of the patient's respiratory tract and digestive tract, and the cuff 40 is inflated through t...

AI Technical Summary

Problems solved by technology

During the operation, the laryngeal mask is inserted into the patient's throat, the cuff 40 is placed at the junction of the patient's respiratory tract and digestive tract, and the cuff 40 is inflated through the cuff inflation tube 30, and the inflated cuff seals the throat to form an airtight seal. However, the laryngeal mask with this structure cannot completely separate the patient's respiratory tract and digestive tract during use, so that the possibility of reflux and aspiration of gastric contents cannot be prevented, and gastric contents can only be drained by placing a gastric tube. It can reduce the reflux of gastric contents to a certain extent, but it cannot fundamentally eliminate the reflux and aspiration of gastric contents, and because the digestive tract and respiratory tract cannot be completely separated, it is easy to cause gas to enter the gastrointestinal tract when positive pressure ventilation is performed. , leading to increased intragastric pressure, which is more likely to cause reflux of gastric contents, and at the same time, increased intragastric pressure will also lead to increased airway pressure, affecting the ventilation effect

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