Multi-lung-segment obstructive lung isolation technology

The utility model discloses a multi-pulmonary-segment obstructive lung isolation technology, which comprises a cannula shell and a connector, the front end of the cannula shell is provided with a first balloon, one side of the first balloon is provided with a second balloon, one side of the second balloon is provided with a third balloon, one side of the third balloon is provided with a fourth balloon, and the fourth balloon is provided with a third balloon. An air inlet hose is connected to the outer wall of the intubation tube shell, an air inlet block is fixed to the rear end of the air inlet hose, an air inlet is connected to one side of the air inlet block, a filtering check block is installed on the inner wall of the air inlet, a reinforcing steel wire is fixed to the inner wall of the intubation tube shell, and a sealing rubber mat is arranged at the front end of the intubation tube shell; a trachea cannula is fixed to the inner wall of the sealing rubber mat, and the connector is connected to the rear