Examination of the LARYNX may be performed indirectly with use of a laryngeal mirror, or directly by use of a laryngoscope – a type of endoscope. The direct examination is usually performed under general anaesthetic.
n. a device used to inspect the larynx. This can be for diagnostic purposes, to facilitate surgery on the laryngeal structures, or to aid insertion of an endotracheal tube (see intubation). Diagnostic laryngoscopes for use on awake patients are generally fibreoptic devices that are introduced through the mouth or nose. Surgical laryngoscopes are hollow tubes that are passed through the mouth and pharynx and are often used in conjunction with an *operating microscope. Intubating or anaesthetic laryngoscopes consist of a handle and a curved blade, fitted with a light, for moving the tongue and epiglottis aside.
n. the introduction of a tube into part of the body for the purpose of diagnosis or treatment. Thus gastric intubation may be performed to keep the stomach empty during and after abdominal surgery and to provide feeding and drugs when the patient is unable to swallow. In endotracheal intubation an endotracheal tube is inserted through the mouth into the trachea to maintain an airway in an unconscious or anaesthetized patient. It requires expert knowledge for insertion, using a laryngoscope, and has a small cuff at the far end for inflation inside the trachea. It affords the best level of protection of the airway from vomitus.... intubation
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