You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All true about armoured endotracheal tube except and explain in detail?
Just likestandard ET tubes,armored or reinforced tubes have the typical left-facing bevel tip and Murphy eye. Their distinctive feature is ametal wire coilembedded in the wall of the tube shaft. The fact that these tubes contain a metal wire coil means there is no need for a radio-opaque line. Useful in head and neck surgeriesand when the patient is in a prone position.