Bronchus plugging device and plugging method thereof

The invention relates to medical instruments, in particular to a bronchus plugging device and a plugging method thereof. The bronchus plugging device comprises a bronchus catheter, wherein a cuff is arranged at the air outlet end of the bronchus catheter; an inflation piston is arranged close to the air inlet end; the inflation piston is connected with the cuff through an inflation pipe; a composite joint is arranged at the air inlet end of the bronchus catheter; the composite joint is of a three-way structure; an upper port of the composite joint is provided with a plugging head, a lower portof the composite joint is connected with the bronchus catheter, a side port of the composite joint is externally connected with a sputum aspirator; and the middle part of the bronchus is provided with a buckle. The bronchus plugging device has the advantages of simple structure, more accurate positioning and more stable positioning, and has better effects of suffocation and deflation in the operation process. 本发明涉及医疗器械，尤