A tracheal cannula is a short L-shaped cannula placed in the first cricoid cartilage area and is commonly used clinically in patients who have lost the ability to cough and swallow. Tracheal cannulae are generally divided into three types: plastic cannulae, silicone cannulae and metal cannulae, and the duration of use varies with different materials of tracheal cannulae.
If it is a plastic disposable cannula, it should be replaced promptly if there are abnormalities such as rupture and unstable bleeding when using it. If it can be used normally, and there is no obvious pollution, sputum scabs, can be replaced once every 1-2 weeks, and if well cared for, can be used for a longer period of time;
the performance of silicone cannula is relatively stable and can generally be replaced once every 2-3 months with better care;
If the metal casing, especially the metal casing with inner sleeve, because the inner sleeve can be repeatedly taken out for cleaning, if there is no phlegm residue clogging serious and other more serious cases, generally do not need to be replaced, as long as timely cleaning can be.