Video laryngoscope system with flat scan video kymography and laryngeal stroboscopy functions

Abstract

A video laryngoscope system having flat scan video kymography and laryngoscopic functions for analyzing a motion state of a larynx comprises: a laryngoscope for viewing vocal cords; a light source for illuminating the vocal cords; a video camera which has a beam splitter for separating an image viewed by means of the laryngoscope and the light source into two images to acquire a flat scan kymographic image and a stroboscopic image; a dual image capturing unit for converting two image signals transmitted from the video camera into a digital image signal; a storage unit for storing the digital image signal; a control unit for analyzing the digital image signal of the storage unit and simultaneously displaying analysis results of the flat scan kymographic image and the stroboscopic image; and a computer comprising analysis software for analyzing the image signal of the storage unit; and a monitor for displaying photographed images and analysis results.

Description

technical field [0001] The present invention relates to a video laryngoscope system with functions of planar scanning video recording wave (VIDEOKYMOGRAPHIC) and strobe laryngoscope (LARYNGEAL STROBOSCOPY). A video laryngoscope system with the functions of planar scan video recorder and stroboscopic laryngoscope, which can be separated into two images to simultaneously obtain planar scan wave recorder image and stroboscopic image. Background technique [0002] The human larynx (laryngo) is a vocal organ for conveying meaning through language, and the vocal cords (vocal cords) in the larynx vibrate about 100 to 350 times per second with the flow of breathing air exhaled during vocalization. However, in the diseased state of voice change, the movement of the vocal cord mucosa is irregular and asymmetrical, or the vibration is reduced, or even disappears in severe cases. [0003] During vocalization, the air inhaled into the lower airway is caused by the closed vocal cords at ...

AI Technical Summary

Problems solved by technology

However, the problem suggested by the previous stroboscope is that the light source device used to form the strobe light source of intermittent light is made of a large volume and weight, which consumes a lot of power and is expensive.

In addition, the problem with the conventional stroboscope is that when the strobe light source is out of sync with the sampling speed of the camera, the image becomes dark and the object cannot be observed clearly.

However, in 2D VKG, the vocal cords are displayed distorted in a diamond shape in order to express all the vocal cord movements, so there is a disadvantage that the actual vocal cord movements cannot be displayed in the same way as the stroboscopic laryngoscope

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