Sampling tube suite in airway during anesthesia

The utility model discloses an in-airway sampling tube suite during anesthesia. The in-airway sampling tube suite comprises a connecting tube, a sampling head, a supporting part and a tracheal catheter, the first end of the connecting pipe is connected with the sampling head, and the supporting parts are obliquely arranged on the outer circumferential surface of the second end of the connecting pipe and used for supporting the second end of the connecting pipe to be located in the center of the tracheal catheter; the utility model has the beneficial effects that on the basis of using the traditional threaded connector, the connecting tube is inserted into the tracheal catheter, so that the sampled gas can be closer to the lung of a patient, the gas in the lung at the front end of the tracheal catheter can be collected, the mixing of the gas in the invalid cavity in the airway is avoided, the gas analysis accuracy is improved, and the working efficiency is improved. A plurality of supporting parts are mounted