Trachea cannula with anti-collision structure

The utility model relates to the technical field of nerve monitoring trachea cannulas, and discloses a trachea cannula with an anti-collision structure, which comprises a main body, an air bag is fixedly arranged on the outer side of the main body, an inflation tube is fixedly arranged on one side of the air bag, and a negative pressure suction ball is fixedly arranged at one end of the inflation tube. A one-way valve is fixedly arranged in the negative pressure air suction ball, a rubber sleeve is fixedly arranged on the outer side of the main body, and a graduated scale is fixedly arranged at the top end of the rubber sleeve. According to the utility model, the air bag is arranged on the outer side of the main body, and the rubber sleeve is arranged on the outer side of the main body, so that the main body can be well protected and can be prevented from being collided or pressed by external objects, and rubber has certain elasticity and buffering performance, so that the main body can be effectively protect