Objective To design the trachea main bronchus covered embranchment stent and study the primary treatment for thoracostomach main bronchial fistula and main bronchial stenosis.

目的设计治疗胸腔胃主支气管瘘和主支气管狭窄的气管主支气管覆膜分支状内支架。

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Results:19 cases of primary syndrome 32 cases of bronchus lymphoid tuberculosis, 7 cases have not the typical model.

结果：原发综合征19例，支气管淋巴结核32例，其它不典型征象7例。

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The air then passes through the larynx and down the trachea. The trachea splits into two tubes, called the primary bronchi. One bronchus passes into each lung.

接着空气通过喉下至气管，气管分为两根，称为主支气管，每一根主支气管通入一叶肺。

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