| 摘要 |
<p>A distance adjustable nozzle mechanism (25) is provided on a passage member (17) at portions on jetting sides of right and left chemical passages (20, 20). The distance adjustable nozzle mechanism (25) comprises fitting convex portions (26, 26) formed in the passage member (17), adjustable nozzles (27, 27) rotatably and detachably mounted to the fitting convex portions (26, 26), and tapered spray ports (28) communicating with the chemical passages (20) to extend along the fitting convex portions (26) and the adjustable nozzles (27), of which axes are eccentrically offset from an axis of rotation. Accordingly, upon the rotation of the respective adjustable nozzles (27), they move toward and away from each other by an extent of eccentricity from the axis of rotation, so that a nozzle pitch between the respective adjustable nozzles (27) can be simply regulated to match a distance between nasal cavities of a patient. Also, cleaning is made easy by dismounting the respective adjustable nozzles (27).</p> |
