| 摘要 |
<p>A coupling element (20-28) for establishing acoustic connection between a cylindrical hearing aid (10) placed in the concha and a custom made ear plug (29) placed in the auditory canal is formed by a disc-shaped part (20, 21), which can be snapped on to a sound exit nipple (14-19) on the hearing aid, and an angularly bent tube section (27, 28) rotatably mounted on a laterally directed spout (23, 24) on the disc-shaped part. As the hearing aid housing can rotate about its own axis in the concha and the coupling element can rotate about the nipple of the aid and because the tube section can rotate about the spout of the disc-shaped part, the tube section may be so placed with respect to the auditory canal that the sound channel in the ear plug can be established by a single, straight bore. </p> |
