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    • 3. 发明申请
    • AN IMPLANTABLE MICROPHONE FOR USE WITH A HEARING AID OR COCHLEAR PROSTHESIS
    • 用于听力助听器或辅助听诊器的可植入麦克风
    • WO0160116A3
    • 2002-04-04
    • PCT/CA0100099
    • 2001-01-30
    • EPIC BIOSONICS INCBERRANG PETER GJARVIN STACEY DLUPIN ALAN JMCNIVEN SEAN A
    • BERRANG PETER GJARVIN STACEY DLUPIN ALAN JMCNIVEN SEAN A
    • H04R25/00
    • H04R25/606H04R2225/67
    • A totally implantable microphone for use with an implanted hearing aid comprises a cylindrical bio-inert housing having a bio-inert metallic membrane at the acoustic sensing end and a bio-inert plate containing electrical lead-throughs at the other end. The cylindrical housing is implanted in the posterior wall of the external auditory canal, with the thin auditory canal skin overlaying the microphone membrane surface. Surface features on the housing ossiointegrate it to the auditory canal bone, and a flange on the housing posterior end prevents post-operative migration into the auditory canal. A support plate beneath the membrane limits inward flexing and increases the signal-to-noise ratio. A protruding rim around the membrane perimeter acts to protect the membrane from rupturing during outward flexure. Lithographically formed wires laminated in a thin inert polymer and connected to the lead-throughs enable the overall length of the encapsulated microphone to be very short.
    • 用于植入式助听器的完全可植入麦克风包括圆柱形生物惰性壳体,其在声学感测端具有生物惰性金属膜,另一端包含含有电导线的生物惰性板。 圆柱形外壳植入外耳道的后壁,细耳面皮肤覆盖麦克风膜表面。 外壳上的表面特征将其整合到听管骨中,并且壳体后端上的凸缘防止术后移入耳道。 膜下方的支撑板限制向内弯曲并增加信噪比。 围绕膜周边的突出的边缘用于保护膜在向外弯曲期间的破裂。 层压在薄的惰性聚合物中并连接到引出通道的光刻形成的线使得封装的麦克风的总长度非常短。