The invention relates to a one-
lung ventilation integrated device of a single-cavity trachea
catheter and a
bronchus blocking device, belonging to medical apparatuses. The one-
lung ventilation integrated device comprises a Y-shaped tee joint connected with the single-cavity trachea
catheter, wherein a
catheter bag is arranged at the front end of the single-cavity trachea catheter, an unaffected-side
bronchus opening and an affected-side
bronchus opening are arranged on a left side and a right side in the front of the catheter bag, a tip end of the catheter bag is provided with a V-shaped bulge clamp, a bronchus blocking
system and the single-cavity trachea catheter are integrated, the front end of a blocking
pipe penetrates out from an upper edge of the affected-side bronchus opening and is out of shape in the wall of a catheter body upwards, a blocking bag is arranged at the front end of the blocking
pipe, the
tail end of the blocking
pipe penetrates out from an affected-side root of the catheter body and is connected with a bidirectional blocking pipe switch, and an elastic guide wire special for dredging the blocking pipe is arranged at the
tail end of the blocking pipe. The one-
lung ventilation integrated device of the single-cavity trachea catheter and the bronchus blocking device, disclosed by the invention, has a simple structure and reasonable design and integrates various advantages of a traditional one-
lung ventilation device so as to provide clinic with a novel one-
lung ventilation device having the advantages of convenience for operation, exactness in location and flexibility for conversion of one-
lung ventilation and double-lung ventilation, and makes an affected lung better keep a static collapse state.