A common intubation head has one or two capsules, which can be inflated to fix the intubation and seal the airway, or may not be accompanied by a capsule. The tube body is usually made of polymer material and embedded with wire coils to improve radial strength and axial flexibility. Part of the tube body is made of laser resistant material or cladding to resist laser irradiation. A tube inserted into the patient's trachea through the nose/mouth or through the skin. One end is connected to the anesthesia ventilator through a breathing line to maintain patient breathing. Sterile and disposable

The distal end of the catheter is beveled open.

The distal end is attached with a sleeve - shaped inflatable capsule.

The proximal end has an adaptor tube connected to the respirator.

The capsule is connected with a small test balloon by a fine catheter to understand the expansion and contraction of the capsule and its inflation pressure.

Murphy side hole is located on the lateral wall of the distal trachea tube sheath. It is used to allow breathing gas to enter and exit through this side hole when the trachea tube is attached to the trachea tube wall.