Double bronchial tubes capable of anchoring a carina comprise a first tube, a second tube, a first balloon, a second balloon, and a third balloon. The first tube extends in one direction in the form of a tube. The second tube extends in the form of a tube adjacent to the first tube and comprises an extension part bent in one direction and extending further than the first tube. The first balloon expands or contracts a first cuff extended through the first tube and connected to the end. The second balloon expands or contracts a second cuff extended through the second tube and connected to the end. The third balloon expands or contracts a third cuff passing and extending between the first and second tubes and connected to the end.
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