| 摘要 |
PROBLEM TO BE SOLVED: To provide a transducer for detecting acoustic and non-acoustic musculi ossiculorum auditus activity which can noninvasively and simply detect the activity of the musculi ossiculorum auditus in the human auris media for many hours under either condition of the time of activity or sleep from an eardrum face through the external acoustic meatus. SOLUTION: A balloon (6) for fixing on and adhering to the external acoustic meatus bone portion a flexible probe (1) in which a glass fiber bundle (2) for sending light to irradiate the eardrum face with the light, which is an inadequate stimulus for hearing sense, and a glass fiber sheaf (3) for receiving the light in which a polarizing plate is stuck to the leading edge of an eardrum side light receiving portion, are in a row and bundled, guide cavities (4) and (8) for observing the eardrum for inserting a stopper (10) and a very fine endoscope, and an optical flange (9) are provided. COPYRIGHT: (C)2004,JPO
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