Laryngeal mask airway

Abstract

The invention discloses a laryngeal mask airway. An air bag of the laryngeal mask airway is a double-layer air bag and comprises an inner layer air bag and an outer layer air bag. Compared with the material of the inner layer air bag, the material of the outer layer air bag is more prone to elastic deformation. Four channels are formed in a catheter and an air bag base and include an inner layer air bag ventilation channel, an outer layer air bag air inlet channel, an outer layer air bag air outlet channel and a main channel used for being communicated with a human body trachea. The inner layer air bag ventilation channel is communicated with the inner layer air bag. The outer layer air bag air inlet channel is communicated with the lower side of the outer layer air bag. The outer layer air bag air outlet channel is communicated with the upper side of the outer layer air bag. When the inner layer air bag and the outer layer air bag are in a normal pressure state, the outer layer air bag is completely attached to the inner layer air bag. The air bag positioning function and the sealing function can be well guaranteed. The air bags and a throat pipe are attached more firmly.

Description

technical field [0001] The invention relates to a laryngeal mask. Background technique [0002] Before the operation, a laryngeal mask is often used to introduce anesthetics into the body. The airbag of the existing laryngeal mask is a single layer, and it is impossible to detect whether the airbag and the throat are tightly fitted after inflation. When the airbag and the throat tube are not tightly fitted, the anesthetic drug introduced from the main channel will easily leak out, thus the accuracy of anesthesia cannot be controlled. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a laryngeal mask which can fit the airbag and the throat more tightly. [0004] In order to solve the above technical problems, the present invention includes a catheter, an air bag seat and an air bag, the catheter is connected to the air bag seat, the air bag is arranged on the air bag seat, and the air bag is a double-layer air bag,...

AI Technical Summary

Problems solved by technology

[0002] Before the operation, a laryngeal mask is often used to introduce anesthetics into the body. The airbag of the existing laryngeal mask is a single layer, and it is impossible to detect whether the airbag and the laryngeal tube are tightly fitted after inflation

When the airbag and the throat tube are not tightly fitted, the anesthetic drug introduced from the main channel is easy to leak, so the accuracy of anesthesia cannot be controlled

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