Special joint capable of guiding cannula through laryngeal mask fiberbronchoscope during mechanical ventilation

Abstract

The invention discloses a special joint capable of performing exploring or guiding a cannula through a laryngeal mask fiberbronchoscope during mechanical ventilation. The joint structurally comprisesa joint body, a breathing machine connecting pipe and a laryngeal mask connecting pipe. The special joint is characterized in that a breathing connecting pipe is fixedly connected to the right side ofa joint body, the laryngeal mask connecting pipe is arranged at the bottom of the joint body, a movable sealing cover is arranged at the top of the joint body, a V-shaped anti-counter-flow valve is arranged at the portion, close to the bottom, inside the body, an iris shaped high-elasticity sealing membrane is arranged at the portion, close to the top, inside the body, and a center pupil shape expansible hole is formed in the iris shaped high-elasticity sealing membrane. According to the special joint capable of performing exploring or guiding the cannula through the laryngeal mask fiberbronchoscope during mechanical ventilation, the sealing state can be kept under the high ventilation pressure, no air leakage phenomenon can appear, and the special joint is simple in structure and high inpracticability.

Description

technical field [0001] The invention relates to the field of airway exploration or tracheal intubation through a laryngeal mask with a fiberoptic bronchoscope, in particular to a special connector capable of performing bronchofiberoscope airway exploration or guiding intubation under continuous mechanical ventilation through a laryngeal mask. Background technique [0002] Endotracheal intubation is a medical technique that inserts a tracheal tube into the trachea through the human mouth or nasal cavity to keep the airway unobstructed or perform mechanical ventilation, and endotracheal intubation through the laryngeal mask under the guidance of a fiberoptic bronchoscope is the solution to the difficulty of tracheal intubation. One of the important methods, the bronchoscope is an instrument for diagnosing bronchial diseases by using a light guide composed of tens of thousands of highly transparent glass or acrylic resin drawn into very thin fibers. Its lumen is small, soft and...

AI Technical Summary

Problems solved by technology

The bronchofiberscope insertion hole of the related substitute product has a small inner diameter and cannot be expanded. It can only pass through a bronchofiberscope with a fixed caliber.

At the same time, the bronchoscope needs to close the connector inlet before and after insertion, which is troublesome

And because of the single-layer non-elastic sealing structure, if the mechanical ventilation pressure is high while the bronchoscope is being explored, air leakage may occur, which will affect the ventilation effect of the patient.

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