| 摘要 |
A hearing device of the kind that has a body (21) adapted to be inserted into the auditory meatus (11) of the user's ear. The body (21) is tubular in shape and contains in its outer end a microphone (24), in its inner end a loudspeaker (25) and an amplifier (26) connected there between. A head (23) is connectable to the body, said head enclosing a battery (27) and having a passage (28) with an inner end which is directed to wards the microphone and an outer end which is directed towards the inner side of the tragus. A housing (22) made of tissue-friendly, flexible material is arranged around the body, which housing when compressed will seek to return to its original shape. The auditory means is ventilated to the outside via this material by means of a passage which is open at both ends, the inner end of which is located in the auditory meatus and the outer end of which opens into the cavity of the auricle adjacent to the anthelix, approximately opposite the tragus. |
