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Hearing compensation actuator capable of bidirectional positioning

A two-way positioning and actuator technology, applied in hearing aids, electrical components, etc., can solve the problems of external environmental interference, large size, and limited gain of piezoelectric bimorph implant devices, and achieve easy preparation, high resonance frequency, The effect of low power consumption

Inactive Publication Date: 2015-09-09
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to overcome the shortcomings of the existing electromagnetic implanted hearing aid devices, which are susceptible to external environment interference, and the piezoelectric bimorph implanted device has limited gain and large size, the present invention provides a piezoelectric stack as a vibration component actuator

Method used

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  • Hearing compensation actuator capable of bidirectional positioning
  • Hearing compensation actuator capable of bidirectional positioning
  • Hearing compensation actuator capable of bidirectional positioning

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Embodiment

[0024] figure 1 It is a schematic diagram of the main structures of the human ear, including the external auditory canal 1 , the tympanic membrane 2 , the ossicular chain and the cochlea 6 . The tympanic membrane 2 and the ossicular chain are important components of the middle ear. The ossicular chain is composed of three ossicles, the malleus 3, the incus 4, and the stapes 5, and the three ossicles are connected by joints to form a whole. Among them, the malleus 3 is directly connected to the tympanic membrane 2 , and the stapes 5 is adjacent to the cochlea 6 and transmits the vibration energy of the ossicular chain to the cochlea 6 . When a normal human ear senses external sound waves, the sound signal is first transmitted to the tympanic membrane 2 through the external auditory canal 1, causing the tympanic membrane 2 to vibrate, and further driving the vibration of the ossicular chain. The vibration energy is transmitted to the endolymph of the cochlea 6 and the auditory...

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Abstract

Disclosed is a hearing compensation actuator capable of bidirectional positioning. The actuator comprises a lead wire, an embedded member, a fixation member and a coupling rod. The actuator employs a piezoelectric stack as a vibration element, is miniaturized in structure, is fixed at a scull through the fixation member and provides a supporting condition for the embedded member; the embedded member realizes axial positioning through threaded connection and realizes radial positioning through spherical pair connection, and a bidirectional positioning function facilitates operative implantation; and the length of the coupling rod is adjustable, and the coupling rod can act on different ear auditory ossicles and meets the treatment requirement for sensorineural and conductive hearing damage. The hearing compensation actuator provided by the invention is reasonable in design and simple in structure, thereby being applied to optimized design of a hearing-aid apparatus.

Description

technical field [0001] The present invention relates to bidirectionally positionable hearing compensating actuators for treating hearing impairment, and more particularly, the present invention relates to piezoelectric stack actuators capable of axial and radial positioning for treating hearing impairment , the actuator can be implanted clinically through surgery. Background technique [0002] At present, implanting hearing aids has become an effective means of treating sensorineural or conductive hearing loss. This technology binds the micro-actuator to the ossicular chain structure of the human middle ear, drives the ossicular chain to vibrate in the form of mechanical excitation, and realizes the reconstruction of the sound conduction path of the human ear. This hearing compensation method is therefore more advanced. A natural way to experience sound close to the human ear. Compared with traditional hearing aids that use acoustic excitation, implanted hearing aids have ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R25/00
Inventor 张景田佳彬许立富卢坤塔娜饶柱石
Owner SHANGHAI JIAO TONG UNIV
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