To diagnose empyema, the most common method is X-ray. However, X-ray needs film development, which means waste of time and money. In addition, radiation is not very good for human body. STI 2000 simply gets over those problems. It doesn't need running cost, without harmful facts, can diagnose empyema in very short time. Transillumination way is well known in many European countries but patients must placed in dark room. With this device, whoever can diagnose empyema with image system in just 3 seconds.

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According to the text of medicine, transillumination is used in diagnosing the maxillary and frontal sinus as a complementary technique. Inspection of sinus is performed by irradiate the inner side of the oral cavity while patient is placed the dark room. If the sinus is abnormal, it appears to be dark due to light interception by different media, which occupying the sinus cavity.

You should care about three things when you do transillumination.

1) Red pupil transillumination light
2) Half-moon type transillumination light under the eye
3) The fact of transillumination light through the eye