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    • 4. 发明申请
    • MICROACTUATOR
    • 微致动器
    • WO2013170105A2
    • 2013-11-14
    • PCT/US2013040454
    • 2013-05-09
    • OTOKINETICS INCKOSKOWICH GREGORY N
    • KOSKOWICH GREGORY N
    • H04R25/00
    • H04R25/00H04R25/604H04R25/606Y10T29/42
    • A microactuator has a proximal end configured to receive an electrical signal and a distal end configured to be inserted into a fenestration of an otic bone to provide access through the lateral wall of the cochlea of a subject. The microactuator includes a piezoelectric transducer assembly having a piezoelectric transducer disposed on a membrane (the piezoelectric transducer having a smaller dimension than a corresponding dimension of the membrane), a hermetically sealed fluid cavity filled with a fluid sealed at a first end to a first side of the piezoelectric transducer assembly and at a second end to a diaphragm, a second cavity containing a vacuum or a gas sealed at a first end to a second side of the piezoelectric transducer assembly and at a second end to an end cap.
    • 微致动器具有被配置为接收电信号的近端和构造成插入耳骨开窗的远端,以提供通过对象的耳蜗的侧壁的通路。 该微致动器包括压电换能器组件,其具有设置在膜上的压电换能器(压电换能器的尺寸小于膜的相应尺寸),密封的流体腔填充有在第一端密封到第一侧 的压电换能器组件的第二端和在隔膜的第二端处,包含真空的第二腔或在第一端密封到压电换能器组件的第二侧的气体,以及在端盖的第二端。