Actuator for hearing compensation and hearing aid device with the same

A hearing aid device and actuator technology, applied in hearing aids, electrical components, etc., can solve the problems of hearing-impaired patients, limited application range, poor high-frequency gain, etc., to overcome strong magnetic field interference, small surgical trauma, and output big gain effect

Inactive Publication Date: 2012-04-04
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to try to provide an actuator for hearing compensation to solve the problem that hearing aids in the prior art cannot work in a strong magnetic field environment, have limited application range, high energy consumption; large surgical trauma, high frequency Poor gain; and technical issues such as high cost and inability to treat patients with mixed hearing loss with damaged ossicular chain

Method used

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  • Actuator for hearing compensation and hearing aid device with the same
  • Actuator for hearing compensation and hearing aid device with the same
  • Actuator for hearing compensation and hearing aid device with the same

Examples

Experimental program
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Embodiment 1

[0052] see figure 2 , which is a structural schematic diagram of the first embodiment of an actuator for hearing compensation in the present invention. For the convenience of description, figure 2 continue to use figure 1 The main component symbols in . This embodiment is mainly aimed at the mixed hearing loss patient that ossicular chain part damages, as patient's incus 8 (referring to figure 1 ) has partially decayed. This embodiment includes: a wire 17, a fixing bracket 11, a bone nail 16, and a piezoelectric member, which are used to convert the electrical signal introduced by the wire into the deformation of the internal piezoelectric material to achieve mechanical excitation, including: a threaded connector 12 , a piezoelectric stack 13 and a housing 15; a tray 19 and a coupling rod including a connecting rod 14 and a stapes clamp 18, the coupling rod transmits the mechanical vibration generated by the piezoelectric component to the ossicular chain. The fixed brack...

Embodiment 2

[0057] see again image 3 , which is a structural schematic diagram of the second embodiment of an actuator for hearing compensation in the present invention. For convenience of description, image 3 is used Figure 1 to Figure 2 The main component symbols in . This embodiment is mainly aimed at patients with sensorineural hearing impairment with intact ossicular chain. This embodiment includes: a wire 17, a fixing bracket 11, a bone nail 16, and a piezoelectric member, which are used to convert the electrical signal introduced by the wire into the deformation of the internal piezoelectric material to achieve mechanical excitation, including: a threaded connector 12 , a piezoelectric stack 13 and a housing 15; a tray 19 and a coupling rod composed of a connecting rod 14, the coupling rod transmits the mechanical vibration generated by the piezoelectric component to the ossicle chain. The fixed bracket 11 is fixed on the patient's skull through bone nails 16, providing a fix...

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PUM

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Abstract

The invention relates to an actuator for hearing compensation and a hearing aid device with the same. The actuator comprises a fixed bracket, a piezoelectric member and a coupling rod, wherein the fixed bracket is fixedly implanted on skull through operation; the piezoelectric member is composed of piezoelectric stacks; one end of the piezoelectric member is connected with the fixed bracket and fixed thereby while the other end thereof is connected with the base part of the coupling rod; and the acting end of the coupling rod acts on one otosteon of middle ear. The hearing aid device can be used in high magnetic fields, which has no requirement on complete hearing chain of patients, so the device can cure patients with mixed hearing loss and damaged ossicular chain. In addition, the hearing aid device is featured with high frequency and high gain, which can compensate bad sensorineural hearing loss.

Description

technical field [0001] The present invention relates to a surgically implantable actuator for the treatment of hearing impairment and a hearing aid device incorporating the same. More specifically, the present invention relates to a piezoelectric actuator that generates vibrations according to external sound signals to compensate for hearing loss by directly mechanically driving the movement of the ossicular chain. Background technique [0002] Hearing impairment is one of the most common diseases in China. According to the second national sample survey of disabled people in 2006, there are 27.8 million hearing-impaired patients in China. With the continuous enrichment of audiology and the rapid development of ear microsurgery, a considerable number of hearing-impaired patients have been effectively treated, and most patients with conductive hearing-impaired can improve their hearing through surgery. However, most of the sensorineural hearing impairments still lack targeted...

Claims

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Application Information

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IPC IPC(8): H04R25/00
Inventor 饶柱石刘后广塔娜田佳彬许立富
Owner SHANGHAI JIAO TONG UNIV
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