本文選題：人工中耳 + 壓電作動(dòng)器�。� 參考：《中國(guó)生物醫(yī)學(xué)工程學(xué)報(bào)》2017年04期

【摘要】：研究不同激振位置對(duì)壓電式人工中耳聽(tīng)力補(bǔ)償性能的影響,確定壓電式人工中耳最優(yōu)激振位置。建立人耳有限元模型,并通過(guò)和相關(guān)實(shí)驗(yàn)數(shù)據(jù)進(jìn)行對(duì)比驗(yàn)證模型的可靠性。基于該模型,分別在鼓膜臍部、砧骨體、砧骨長(zhǎng)突和圓窗施加相同的位移驅(qū)動(dòng),通過(guò)檢測(cè)鐙骨足底板位移及基底膜的最大位移,分析這些位置的激振對(duì)人工中耳聽(tīng)力補(bǔ)償性能的影響。結(jié)果表明,以鐙骨足底板位移為評(píng)估標(biāo)準(zhǔn)會(huì)低估圓窗激振的高頻聽(tīng)力補(bǔ)償效果。砧骨長(zhǎng)突激振下的基底膜特征位置處的運(yùn)動(dòng)位移大于激振鼓膜臍部及激振砧骨體時(shí)的位移值,其中激振砧骨體時(shí)的基底膜特征位置處運(yùn)動(dòng)位移最小;激振圓窗時(shí)的基底膜特征位置處運(yùn)動(dòng)位移在低頻段小于激振其他位置時(shí)對(duì)應(yīng)的位移值,但在中、高頻段其激振效果最好。在頻率低于400 Hz時(shí),砧骨長(zhǎng)突激勵(lì)聽(tīng)力補(bǔ)償效果最好,圓窗激勵(lì)聽(tīng)力補(bǔ)償效果最差。當(dāng)頻率大于1 k Hz時(shí),圓窗激勵(lì)聽(tīng)力補(bǔ)償效果比其他位置好。以傳統(tǒng)的鐙骨足底板響應(yīng)為評(píng)估標(biāo)準(zhǔn),將低估圓窗激振式人工中耳的聽(tīng)力補(bǔ)償效果。
[Abstract]:The effect of different excitation positions on the hearing compensation performance of the piezoelectric artificial middle ear was studied, and the optimal excitation position of the piezoelectric artificial middle ear was determined. The finite element model of the human ear was established and the reliability of the model was compared with the relevant experimental data. Based on this model, the same model was applied to the drum, anvil, anvil and round window respectively. By measuring the displacement of the stapes and the maximum displacement of the basement membrane, the effect of the excitation on the hearing compensation performance of the middle ear was analyzed. The results showed that the high frequency hearing compensation effect was underestimated by the displacement of the stapes foot plate. The displacement is greater than the displacement of the umbilical cord and the exciting anvil body, in which the movement displacement of the basal membrane is minimum when the anvil is excited, and the displacement of the motion displacement at the characteristic position of the basement membrane in the circular window is less than that at the other position at the low frequency section, but in the middle, the frequency is the best. When the rate is below 400 Hz, the long process of the anvil has the best effect on hearing compensation, and the round window has the worst effect on hearing compensation. When the frequency is more than 1 K Hz, the effect of the circular window on hearing compensation is better than that of the other positions.
【作者單位】： 中國(guó)礦業(yè)大學(xué)機(jī)電工程學(xué)院;上海交通大學(xué)機(jī)械系統(tǒng)與振動(dòng)國(guó)家重點(diǎn)實(shí)驗(yàn)室;復(fù)旦大學(xué)附屬中山醫(yī)院耳鼻喉科;
【基金】：國(guó)家自然科學(xué)基金(51305442) 江蘇省自然科學(xué)基金(BK20130194) 高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金(20130095120010)
【分類號(hào)】：R764

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