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J Korean Soc Laryngol Phoniatr Logop > Volume 17(1); 2006 > Article
Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 2006;17(1): 28-37.
휴대형 후두 스트로보스콥의 개발
이재우1, 권순복1, 이병주1, 이진춘1, 고의경1, 전경명1, 왕수건1, 노정훈2
1부산대학교 의과대학 이비인후과학교실
2부산대학교 의과대학 의공학교실
Development of Portable Laryngeal Stroboscope
Jae-Woo Lee1, Soon-Bok Kwon1, Byung-Joo Lee1, Jin-Choon Lee1, Eui-Kyung Goh1, Kyong-Myong Chon1, Soo-Geun Wang1, Jung-Hoon Ro2
1Department of Otolaryngology, College of Medicine, Pusan National University
2Department of Biomedical Engineering, College of Medicine, Pusan National University
ABSTRACT
Purpose: Evaluation of vocal cord vibration is very important in cases of voice disorders. There are several equipments for examining the vocal fold vibration such as laryngeal stroboscope, ultra high-speed digital imaging system, and videokymograph. Among these, laryngeal stroboscope is the most popular equipment because of easy to examine the laryngeal pathology. However, current laryngo-stroboscopes are too bulky to move and relatively expensive. The purpose of this research is to develope a portable laryngeal stroboscope of equivalent performance with the current equipments. Methods and Materials: Recently developed high luminescent white LEDs(light emitting diodes) are placed at the head of the endoscope as light sources for the CCD image sensor which is also placed at the head with imaging lens. This arrangement eliminates the bulky light source like expensive halogen or xenon lamps as well as the optical light guiding cables. The LEDs are controlled to flash in phase with the voice frequency of the examinee. The CCD captures these strobo images and converts them into video signals for examinations.
Results:
There was no functional differences between preexisting stroboscope and the newly developed stroboscope of this study. LED light sources and microprocessor based control circuits of the stroboscope enabled the development of flicker-less, hand-held, portable and battery-operating stroboscope.
Conclusion:
The developed stroboscope is cost-effective, small-sized, easy to use and very easy desirable to bring and to use in any place.
KEY WORDS: Laryngeal stroboscopy;Portable;
중심 단어: 후두스트로보스코피;휴대형;
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