bougie endotracheal tube

Abstract

The popularization of video laryngoscopy has improved the exposure of the glottis, but it often causes more difficulties for endotracheal intubation. The reason is that when indirect laryngoscopy reveals the glottis, the forward curvature of the airway in the throat increases, and the subglottic airway forms a backward curvature, forming an S-shaped channel. The innovation of the bougie-type endotracheal tube of the present invention lies in the cylinder at the tip of the tube and the pre-shaping of the tube as a hockey stick as a whole, and the revolutionary 180-degree external rotation tube delivery method. That is, after the bougie-shaped head is inserted forward and upward into the glottis, the catheter is turned outward and pushed into the trachea. When the marking line in the middle of the back of the tube body is turned to the top, the rear ring marking line is at the glottis, and the trachea is fixed. The catheter is here. At this point, the anterior curvature of the catheter fits the posterior anatomical curvature of the subglottic airway. Therefore, the bougie-type endotracheal tube not only makes intubation and delivery easier and has a higher success rate, but also avoids damage to the airway.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a novel tracheal tube for clinically establishing an artificial airway. Background technique [0002] When conventional laryngoscopy is used clinically for tracheal intubation, incomplete exposure of the glottis is often encountered. At this time, conventional intubation of the tracheal tube is very difficult or easily causes damage, or even severe hypoxia and death. In order to solve the exposure of the glottis, indirect laryngoscopy (video laryngoscope) is gradually becoming popular in clinical practice, which has significantly improved the exposure of the glottis. However, when the video laryngoscope exposes the glottis, the forward curvature from the mouth to the glottis increases. The catheter is difficult to reach the glottis due to insufficient curvature of the front segment, which often causes more difficulties for endotracheal intubation. Clinically, the glottis can be see...

AI Technical Summary

Problems solved by technology

[0002] When conventional laryngoscopy is used clinically for tracheal intubation, insufficiency of the glottis is often encountered. At this time, conventional intubation of the tracheal tube is very difficult or easy to cause damage, or even severe hypoxia and death

In order to solve the exposure of the glottis, indirect laryngoscopy (video laryngoscope) is gradually becoming popular in clinical practice, which has significantly improved the exposure of the glottis. However, when the video laryngoscope exposes the glottis, the forward curvature from the mouth to the glottis increases. The catheter is difficult to reach the glottis due to insufficient curvature of the front segment, which often causes more difficulties for endotracheal intubation. Clinically, the glottis can be seen but difficult to insert the endotracheal tube frequently occurs, and even leads to death

The current clinical countermeasures often use stylet or intubation bougie to assist in guiding tracheal intubation. Although it can solve part of the intubation, there are the following clinical problems: 1. The endotracheal tube can be aligned with the glottis, but it is difficult into the trachea

In this way, even if the endotracheal tube enters the glottis and then reaches the front wall of the upper end of the trachea, it is difficult to continue to push into the trachea, which is more likely to cause damage to the tracheal wall or cause accidents if the tube is unintentionally taken out when the laryngoscope is withdrawn

2. The bougie-guided method of intubation requires the tip of the endotracheal tube to fit closely with the bougie so that it can be easily introduced into the glottis without causing damage. At present, the tip of the conventional endotracheal tube opens to the side, and the bougie and the tip of the endotracheal tube Can easily form bifurcations that can obstruct cannulation and cause injury

3. The stylet is hard and can only assist the catheter to align with the glottis, but cannot help the catheter enter the trachea. At the same time, there are complications such as airway damage or accidental removal of the catheter when the stylet is withdrawn.

Images