Laryngoscope: Because the laryngeal position is deep and the physiological structure is complex, it is impossible to peep directly. Laryngeal examination needs some special examination methods, such as indirect laryngoscope, direct laryngoscope, fiber laryngoscope, electronic laryngoscope, stroboscopic laryngoscope, ultra-high-speed cinematography, glottis or glottis.

Laryngoscopy (laryngoscope, laryngoscope, laryngoscope, laryngoscope) is an endoscope used to examine the throat. Laryngoscopy is a medical procedure to obtain a view of the internal tissues of the body. Such as vocal cords and glottis. Laryngoscopy is used to assist tracheal intubation during general anesthesia or cardiopulmonary resuscitation, or to perform surgery on the larynx or other parts of the upper trachea.

Extended data:

When examining larynx with direct laryngoscope, it is necessary to directly stir up the root of tongue and epiglottis with direct laryngoscope, which is not a routine examination method of larynx, because this examination is an invasive examination method in larynx examination, which is unbearable for patients under general mucosal surface anesthesia and generally requires general anesthesia to be hospitalized. Direct laryngoscope can understand the structural abnormality of larynx in detail, determine the location and scope of the lesion, and biopsy the lesion tissue if necessary. Direct laryngoscopy can not obtain the functional index of larynx. Since the development of fiber laryngoscope and electronic laryngoscope, direct laryngoscope has been used less and less as an examination method, but it has been widely used in clinic as a surgical method.

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