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Á¢¼ö¹øÈ£ - 210500 HNOP-81 |
Development of a device for real-time light-guided vocal fold injection: A
preliminary report |
ºÎ»ê´ëÇб³º´¿ø À̺ñÀÎÈÄ°ú1, ºÎ»ê´ëÇб³º´¿ø ÀÇ°øÇаú2 |
Â÷¿øÀç1, ³ëÁ¤ÈÆ2, ¿Õ¼ö°Ç1, ±è±ÙÈ¿1, ÀÌ¿¬¿ì1, ÀåÀü¿±1, Á¶Àç±Ù1 |
¸ñÀû: Vocal fold injection is a minimally invasive technique for various vocal fold
pathologies. The shortcomings of the cricothyroid membrane (CT) approach
are mainly related to invisibility of the injection needle. If localization of
needle tip can be improved during vocal fold injection with CT approach, the
current problems of the technique can be overcome. We have
conceptualized real-time light-guided vocal fold injection that enables
simultaneous injection under precise localization. In this study, we
developed a device for real-time light-guided vocal fold injection
and applied it in excised canine larynx. ¹æ¹ý:A single optic fiber was inserted in an unmodified 25-gauge needle. A
designated connector for the device was attached to the needle, the optic
fiber, and the syringe. A laser diode module was used as the light source. An
ex vivo canine larynx model was used to validate the device. °á°ú:The location of the needle tip was accurately indicated and the depth from the mucosa could be estimated according to the brightness and size of the red light. The needle was inserted into and could be localized in the canine vocal fold by the light of the device. Precise injection at the intended location was easily performed with no manipulation of the device or the needle. °á·Ð:Real-time light-guided vocal fold injection might be a feasible and promising
technique for treatment of vocal fold pathology. It is expected that this
technique can improve the precision of vocal fold injection and expand its
indication in laryngology. |
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