相关实验视频

Updated: Sep 9, 2025

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation

Published on: October 11, 2024

活跃的中耳植入物 - 通过更大的活塞来提高圆窗刺激的效率

Mohammad Ghoncheh¹, Daniel Schurzig², David Stauske³

¹Department of Otolaryngology and Institute of Audioneurotechnology (VIANNA), Hannover Medical School, Hannover, Germany; Cluster of Excellence Hearing4all, Hannover, Germany.

Hearing research

|August 28, 2025

概括

增加圆窗合器 (OWC) 的表面积可以显著提高耳硬化治疗的声音传输效率. 这项研究表明,较大的OWC提供了更大的输出,尽管必须考虑泄漏.

科学领域:

生物医学工程
耳鼻喉科
听力植入物

背景情况:

通过中耳植入器对形窗口 (OW) 进行直接的活塞刺激是治疗耳硬化的一种方法.
目前的治疗方法包括管切除或管切除.
对于改善听力恢复,研究OW刺激的增强传输效率至关重要.

研究的目的:

通过实验确定是否增加触动活塞的表面积可以提高圆窗 (OW) 刺激中的传输效率.
评估不同圆窗合器 (OWC) 尺寸对内压力差异的影响.
开发一个数值模型来估计浮式质量传感器 (FMT) 的输出.

主要方法:

使用14个新鲜冷的人类骨进行OWC评估.
使用不同的OWC (0.38 mm2,1.26 mm2,3.06 mm2) 测量内压力差异 (P_SV - P_ST).
使用压电传感器进行OWC操作,并开发了FMT输出估计的数值模型.

主要成果:

较大的OWC (中等和大) 与小的OWC (p < 0.05) 相比,显示出明显更高的平均压力差异 (分别为18dB和8dB).
数字模拟显示出较小的输出差异,突出显示了段落切除术后在开放间隙的体积泄漏的影响.
活塞直径的显著差异证实了OWC大小对传动效率的影响.

结论:

增加形窗口合器 (OWC) 的表面积可以相应地提高积极刺激的输出效率.
在开放的圆窗口中,体积泄漏是影响传输效率的重要因素.
这些发现支持使用更大的OWC来改善耳硬化治疗的声音传输.

关键词:

活跃的中耳植入物耳内压力激光多普勒测速仪数字模型耳硬化症圆形的窗口合器一个步骤切除术一个步骤充满活力的声桥

更多相关视频

The Miniature Pig: A Large Animal Model for Cochlear Implant Research

The Miniature Pig: A Large Animal Model for Cochlear Implant Research

Published on: July 28, 2022

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice

Published on: January 9, 2019

相关概念视频

Anatomy of the Ear

Anatomy of the Ear

Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...

The Cochlea

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.