基于平衡装备的电磁执行器,用于通过静态预负载对内耳进行圆窗刺激
Maren S Prediger1, Eileen Müller1, Anatoly Glukhovskoy1
1Institute of Micro Production Technology, Leibniz University Hannover, Hannover, Germany.
Biomedical microdevices
|December 29, 2025
概括
这项研究引入了一种新的,小型的,骨式执行器,用于刺激圆窗膜 (RWM),以恢复中耳损伤患者的听力. 虽然可行且与现有设备相比,但该设计需要提高临床应用的稳定性.
科学领域:
- 生物医学工程 生物医学工程
- 听觉神经科学 听觉神经科学
- 医疗器械 医疗器械
背景情况:
- 大约5%的人口有听力损失.
- 功能性中耳损伤可以通过活跃的中耳植入物来解决.
- 现有的设备,如骨执行器和浮动质量传感器,在尺寸和性能上都有局限性.
研究的目的:
- 开发和评估一种新的,紧的,以定子为基础的执行器,用于圆窗膜 (RWM) 刺激.
- 评估执行器在圆窗中放置的可行性.
- 将新执行器的性能与现有临床设备进行比较.
主要方法:
- 具有灵活膜的旋转对称平衡具执行器的设计和微型制造.
- 膜和原型的基板评估 (0.1kHz 10kHz).
- 在人骨中实地测试原型.
主要成果:
- 一个平衡的具执行器的证明可行性,适合解剖学约束 (1.4毫米外径,4.9毫米长度).
- 实现了RWM的声学刺激,输出水平与临床设备相比 (约. 80 eq. 在 80 方程中. 在300Hz时,dB SPL,>100 eq. 在5kHz以上的SPL).
- 鉴定出不足的强度导致制造产量问题和实验失败,尽管强力不敏感度高达30mN.
结论:
- 开发的平衡具执行器是活跃中耳植入物中RWM刺激的可行概念.
- 执行器的尺寸和输出水平对于解决当前技术的局限性来说是有希望的.
- 未来的代必须优先考虑增强的稳定性和可能增加的临床转换的最大输出水平.
相关概念视频
01:15Equilibrium and Balance
6.1K
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
6.1K
01:17Magnetic Damping
980
Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
980