Transesophageal examination laryngeal mask

Abstract

The invention provides a transesophageal examination laryngeal mask that is simply structured and conveniently operated, and belongs to the field of medical appliance. The transesophageal examination laryngeal mask comprises an aeration pipe, an aeration cover, an inflation tube of the aeration cover, a blow vent, a one-way valve and an indication air sac, and further comprises an esophageal insertion pipe, an inflation tube of the esophageal insertion pipe, an inflation tube fixing ring, at least one secretion draft tube and a fixing ring thereof. The esophageal insertion pipe is connected to the lower end of the aeration cover but is not communicated with the lower end of the aeration cover, and is used together with the inflation tube of the esophageal insertion pipe. The upper end of the secretion draft tube is connected with a negative voltage source and the lower end thereof is a free end. The secretion draft tube is additionally loaded on the aeration pipe by the fixing ring. The invention solves the problem that the oropharyngeal secretion is too much in the process of using an ordinary laryngeal mask. The laryngeal mask of the invention allows the apparatuses such as ultrasonic probe, gastroscope and gastric canal to pass through and can realize the transesophageal ultrasonic technique, painless gastroscope technique and painless gastric canal drainage technique in surgery.

Description

technical field [0001] The invention relates to a laryngeal mask, in particular to a laryngeal mask for transesophageal examination, which belongs to the field of medical devices. Background technique [0002] Laryngeal Mask Airway (LMA) is an artificial airway developed by British doctor Brain in 1981 based on the anatomy of the adult throat structure. Its emergence is to solve the damage to the skin and mucous membrane caused by oral endotracheal intubation during anesthesia. Existing common laryngeal masks are generally composed of three parts: a ventilation tube, a ventilation mask and an inflation tube of the ventilation mask. The potential opening at the upper end of the esophagus is tightly covered, and anesthetic gas is passed through the ventilation tube for inhalational anesthesia. If the above-mentioned laryngeal mask is called the first-generation laryngeal mask, then on the basis of the first-generation laryngeal mask, many people at home and abroad have modif...

AI Technical Summary

Problems solved by technology

The laryngeal mask not only has good airtightness, but also solves the problem of excessive oropharyngeal secretions during the use of ordinary laryngeal masks; it also has the characteristics of allowing ultrasound probes, gastroscopes, gastric tubes, etc. The combined use of esophageal ultrasound, gastric tube, gastroscope, etc. brings great convenience to the use of transesophageal ultrasound gastric tube drainage

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