The invention relates to the technical field of trachea cannulas, and discloses a disposable inflation-free trachea cannula which comprises a cannula body, an
insertion head arranged at the front end of the cannula body and a connector arranged at the rear end of the cannula body, an air bag is arranged on the outer wall of the cannula body in a sealed mode, and the air bag is filled with memory
sponge; the other end of the air
pipe is connected with a three-way valve, and the three-way valve is connected with an air extractor. According to the trachea cannula, the mode that a traditional trachea cannula depends on continuous external inflation for fixation is abandoned, and
intubation can be smoothly completed only through single-time air exhaust to enable the memory
sponge to be shrunk to reduce the size of the air bag; after implantation, the three-way valve is opened, the memory
sponge automatically expands and resets depending on the memory characteristic of the memory sponge, the air bag is driven to be attached to the
air channel to achieve fixation, continuous inflation and pressure maintaining are not needed, the air bag pressure does not need to be repeatedly adjusted, operation steps are simplified, the device is suitable for various clinical scenes such as emergency
intubation and bedside conventional
intubation, and medical workers are low in starting difficulty; the whole set of operation can be completed by one person, and the intubation efficiency is greatly improved.