Coaxial double-lumen bronchial cannula

Abstract

The invention relates to the field of medical instruments, in particular to a coaxial double-lumen bronchial cannula which comprises a tracheal cannula body, an inner trachea is arranged in the tracheal cannula body, one end of the inner trachea is fixedly connected with the inner wall of the tracheal cannula body, the other end of the inner trachea penetrates out of the tracheal cannula body, and a cavity is formed between the inner trachea and the tracheal cannula body. An upper ventilation hole channel is formed in the joint of the inner trachea and the inner wall of the trachea cannula body, a lower ventilation hole channel is formed in the lower end of the trachea cannula body, a first air bag is arranged on the outer surface of the inner trachea and arranged in the cavity, and a second air bag is arranged on the outer surface of the end, extending out of the trachea cannula body, of the inner trachea. A third air bag is arranged on the outer surface of the trachea cannula body. Single-lung and double-lung ventilation and two-lung isolation are achieved only by adjusting the inflation state of the air bag, frequent intubation is not needed, intubation damage is small, the difficulty is low, the problems that a bronchus plugging tube is difficult to fix, plugging side lung collapse is difficult, and hypoxemia occurs are solved, and clinical requirements are met.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a coaxial double-lumen bronchus intubation tube. Background technique [0002] At present, there are three tools commonly used clinically for single- and double-lung ventilation to achieve lung isolation: single-lumen endotracheal intubation, double-lumen endotracheal intubation, and bronchial blocking tube. Single-lumen endotracheal intubation is difficult to achieve double-lung isolation. Lung ventilation, double-lumen tracheal intubation damage is too large, and intubation is difficult, single-lung ventilation resistance is large, and hypoxemia is prone to occur; bronchial occlusion tubes are difficult to fix after positioning with a fiberoptic bronchoscope, and occlusion Difficulty in lateral lung collapse, poor lung atrophy causes pulmonary arteriovenous shunt, leading to hypoxemia. The invention can be intubated as easily as a single-chamber intubation, and the damage is...

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Problems solved by technology

[0002] At present, there are three tools commonly used clinically for single- and double-lung ventilation to achieve lung isolation: single-lumen endotracheal intubation, double-lumen endotracheal intubation, and bronchial blocking tube. Single-lumen endotracheal intubation is difficult to achieve double-lung isolation. Lung ventilation, double-lumen tracheal intubation damage is too large, and intubation is difficult, single-lung ventilation resistance is large, and hypoxemia is prone to occur; bronchial occlusion tubes are difficult to fix after positioning with a fiberoptic bronchoscope, and occlusion Difficulty in lateral lung collapse, poor lung atrophy causes pulmonary arteriovenous shunt leading to hypoxemia

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