An Incus-Body Driving Type Piezoelectric Middle Ear Implant Design and Evaluation in 3D Computational Model and Temporal Bone
作者： Houguang Liu , Zhushi Rao , Xinsheng Huang , Gang Cheng , Jiabin Tian
DOI: 10.1155/2014/121624
关键词:
摘要: A new incus-body driving type transducer relying on piezoelectric stack, with broad frequency bandwidth, is proposed for use in a middle ear implant. To aid the design process of this transducer, coupling biomechanical model human and was established by reverse engineering technology. The validity confirmed comparing predicted motions experimental measurements. Based verified model, main parameters were determined. And its power consumption calculated. Finally, to verify capability designed temporal bone platform built. dynamic characteristics stimulated performance tested. result showed that stapes displacement excitation at 10.5 V RMS equivalent from acoustic stimulation 100 dB SPL, which an adequate ossicular chain. corresponding 0.31 mW per volt 1 kHz, low enough be used Besides, demonstrates high frequencies.
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