Biairbag trachea cannula

Abstract

A sleeve pipe with dual air bags for trachea features that after the sleeve pipe is inflated by air bags, the gap between said sleeve pipe and internal wall of trachea is closed. Two air bags can be alternatively used to shorten the press time of air bag to local trachea mucosa, so preventing the ischemia, erosion, necrosis, etc of trachea mucosa. It is possible to use a pressure monitor.

Description

technical field [0001] The invention relates to the technical field of medical devices, and relates to a double-balloon tracheal tube. Background technique [0002] Clinically, patients undergoing tracheotomy often need to be placed with a tracheal tube to keep the airway open. Existing tracheal tubes include two parts, an outer tube and a tube core. Wherein the outer casing is composed of a casing, an indicating balloon, an inflation tube, an inflation valve, a fixed wing, and an air bag. The fixed wing is located on the outer wall of the proximal end of the cannula, and the air bag is located on the outer wall of the far end of the cannula. One end of the inflatable tube passes through the connection between the fixed wing and the cannula, extends along the tube wall of the cannula and is connected with the air bag, and the other end of the inflatable tube For indicator balloon and inflation valve. The tube core is composed of head, tail and tube b...

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned tracheal tube has the following disadvantages: 1. The outer tube only has one air bag, and the long-term compression of the air bag on the tracheal wall is prone to mucosal ischemia, erosion, necrosis or granuloma and then causes symptoms such as tracheal stenosis. In 1969, Cooper and Grillo confirmed that only 48 hours after the balloon inflation of the tracheal tube, the tracheal mucosa was ulcerated. In 1984, Wited confirmed that the occurrence of tracheal stenosis was related to the length of intubation time. Among patients who were intubated for more than 11 days, 12% developed gas The airway is narrow, and the usual time of use is 2 to 3 weeks, so the incidence of the above-mentioned symptoms is relatively high; 2. The airbag is inflated by a syringe, and the amount of inflation is difficult to control. If the airbag is inflated too much, the pressure of the airbag is too high to compress the tracheal wall, which will easily cause mucosal defect. Blood, erosion, necrosis; air leakage occurs during mechanical ventilation if the air bag pressure is too low

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