Search Result

Journals

Publication Years

Keywords

Please wait a minute...

For Selected:

Download Citations
EndNote Ris BibTeX

Toggle Thumbnails

Select

《Design of Piezoelectric Transducer for Middle Ear Implant Based on Coupling Model》

LIU Hou-guang;MING Xiao-feng;TA Na;RAO Zhu-shi

2010, 30 (2): 130-133. DOI: 10.3969/j.issn.1006-1355.2010.02.130

Abstract （2535）

PDF（pc）（1433KB）（1639）

Save

To design a simplefloating mass type piezoelectric transducer, consisting of a piezoelectric stack, a metal case and a clamp, for middle ear implant, a biomechanics model coupled by human middle ear and piezoelectric transducer is constructed. This model is built based on a complete set of computerized tomography section images of a healthy volunteers left ear by reverse forming technology. The validity of this model is confirmed by comparing the result of motion of the stapes of this model with the published experimental data on human temporal bones. It is shown that the designed transducer can be implanted on the incus long process by a simple surgical operation, and the stapes footplate displacement by its excitation at 10.5 Vrms is equivalent to that from acoustic stimulation at 100 dB SPL, which is adequate stimulation to the ossicular chain.

Related Articles | Metrics

Select

《The Realization of the Cochlear Implant’s CIS Strategy Using Matlab》

MIN Xiao-feng;LIU Hou-guang;TA Na;RAO Zhu-shi

2009, 29 (6): 50-52. DOI: 10.3969/j.issn.1006-1355.2009.06.050

Abstract （2681）

PDF（pc）（753KB）（1127）

Save

Waveform strategy based on frequency demultipcation with filter bank is an important category of speech processing strategies. This article took the continuous interleaved sampling approach (CIS) which is one of the waveform strategies, and proposed its simplified simulation model with simulink. According to the frequency range in Chinese and requirement of hardware implement，we imploved the key filter bank module. The validity and rationality of the model was confirmed by this model with simulation.