PROBLEM TO BE SOLVED: To provide an inexpensive technology to reduce pain of a patient when phlegm is sucked out.;SOLUTION: A larynx camera unit 200 is used in combination with a portable instrument having a lens constituting part of a camera and an illumination. The larynx camera unit 200 includes an illumination light transmission member 223 and an image light transmission member 222, both of which are rod-like and inserted into an oral cavity. An illumination light from the illumination of the portable instrument is sent to the larynx by the illumination light transmission member 223, and an image light from the larynx is sent to the portable instrument from the back of the uvula by the image light transmission member 222. A user performs phlegm sucking while checking an image displayed on a display unit of the portable instrument.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2017,JPO&INPIT
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