Video laryngoscope is a new type of video intubation tool. A high-definition anti-fog camera is installed on the front of the lens, and two light-emitting diodes provide light and contrast. The image is transmitted and enlarged to a8-inch LCD through an optical cable. On the screen, the surgeon can clearly observe the patient's throat structure to ensure that the glottis is clearly exposed.

The video laryngoscope is composed of a liquid crystal display, a power management and system control circuit board, an imaging system, an internal power supply, a handle, a power adapter, and a disposable laryngoscope (divided into three specifications according to size). Disposable laryngoscopeblades are sterile products. Basic parameters: Illumination should not be less than 800Lux; discrimination rate should not be less than 3.51lp / mm; video laryngoscope observation depth of field should not be less than 3 ~ 85mm; LCD display rotation angle should not be less than 60 °.