(1) Metal gas cutting sleeve Metal gas pipe sleeve includes silver gas pipe sleeve and titanium alloy gas pipe sleeve.

This kind of tracheal intubation consists of outer tube, inner tube and intubation core. Generally, according to the inner diameter (mm) and length of the outer tube, it is semi-colon-shaped, and its models range from 4.5 to 12. The metal tracheal cannula with a tube wall thickness of about 3.3mm has the characteristics of low cost. Because of the existence of the inner tube, it can be disassembled at any time, which is convenient for cleaning and nursing and not easy to block the tube. It can be used for a long time and generally does not need to be replaced.

But because it is hard and easy to grow granulation, it needs to be disinfected regularly every day. The inner tube is disinfected for a long time, and the metal is easy to change color and deform, so it is difficult to take and put it.

Plastic tracheostomy tube. Airbags can also be divided into low-pressure high-volume airbags with good histocompatibility and self-inflating "pressureless high-volume" airbags.

A trocar should be placed during intubation. After operation, the trocar should be removed and the catheter should be fixed, which is mainly used for mechanical ventilation.