NASOLACRIMAL TUBE USED FOR LACRIMAL DUCT REFORMATION OPERATION AND NASOLACRIMAL TUBE APPLIANCE

摘要

PROBLEM TO BE SOLVED: To provide a nasolacrimal tube appliance which allows the easily and sure insertion of nasolacrimal tubes while directly viewing the operation in the dark nasal cavities by illumination and while searching the positions of the nasolarcimal tubes when carrying out the insertion operation of the nasolacrimal tubes. SOLUTION: Flexible and light transparent probe tube segments 21 are connected to respective both ends of a flexible indwelling tube segment 20 having a diameter insertable into the lacrimal ducts so as to constituted the extension parts of the indwelling tube segment 20. Front ends 21a and 21b of the respective probe tube segments 21 are closed and openings 23 are formed near the base ends of the respective probe tube segments 21. Light emitting elements like optical fiber element 30 are inserted into the probe tube segments 21 through the openings 23 in the operation. As a result, the light transparent probe tube segments 21 glitter in the nasal cavities and illuminate the inside of the nasal cavities. An operator is thus able to exactly grip the probe tube segments 21 in the nasal cavities and draw these segments outside. Searching of the position of the nasolarcimal tube is also possible by inserting ultrasonic probes, endoscopes, etc., into the probe segments 21 in place of the light emitting elements.