合器尖端大小对圆窗刺激与浮动质量传感器在受控预负载下的影响
Houguang Liu1, Mohammad Ghoncheh2, Daniel Schurzig3
1Department of Otolaryngology and Institute of Audioneurotechnology (VIANNA), Hannover Medical School, Hannover, Germany; School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou, China; Cluster of Excellence Hearing4all, Hannover, Germany.
Hearing research
|February 12, 2026
概括
较大的汉诺威合器版本2 (HC2) 尖端可以提高活跃中耳植入物的圆窗 (RW) 刺激效率. 最佳预加载力因HC2尖端大小而异,较大的尖端提供更好的结果和减少了膜应力.
科学领域:
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 生物医学工程 生物医学工程
- 听力科学 听力科学
背景情况:
- 圆窗 (RW) 的机械刺激对于混合和导电性听力损失的活跃中耳植入物至关重要.
- 传感器-RW尺寸不匹配和不受控制的预负载限制结果.
- 汉诺威合器版本2 (HC2) 旨在优化RW刺激.
研究的目的:
- 为了评估HC2尖端大小对RW刺激效率的影响.
- 为了确定不同HC2尖端尺寸的最佳预装载力.
- 在刺激过程中评估RW膜应力.
主要方法:
- 通过激光多普勒振动测量,使用了6个人类骨.
- 在声学和RW刺激过程中测量了阶段位移.
- 一个浮动质量传感器 (FMT) 具有三个HC2尖端大小 (0.5,0.7,1.0毫米) 用于不同的预载荷 (4-60mN).
主要成果:
- 1.0毫米的HC2尖端产生了最高的传输功能和同等的声压水平 (比小尖端高11dB).
- 在大多数预装载中,在大型和小型尖端之间观察到显著的效率差异.
- 根据尖端大小,最佳预负载有所不同:小15mN,中25mN,大30mN.
结论:
- 随着HC2尖端的大小,RW刺激效率会增加.
- 较大的HC2尖端提供优越的输出,并最大限度地减少RW膜应力,降低透风险.
- 根据HC2尖端大小优化预加载力对于有效的FMT驱动RW刺激至关重要.
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