Multi-channel light stimulation-based cochlear implant device

A cochlear implant and multi-channel technology, applied in medical science, prosthesis, etc., can solve problems such as mutual interference, and achieve the effect of enhancing long-term effect, avoiding chemical reaction, and good spatial resolution

Inactive Publication Date: 2010-12-29
CHONGQING UNIV
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  • Description
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  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the technical deficiencies of existing cochlear implants, and propose a cochlear implant based on multi-channel optical stimulation, which encodes sound signals into optical stimulation signals, and stimulates The auditory nerve of the cochlea causes nerve impulses to form hearing in the central nervous system, thereby avoiding the compatibility problem between the stimulating electrode and biological tissue in the cochlear implant, and also avoiding the interference between channels caused by the diffusion of current in the tissue

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Embodiment Construction

[0029] Such as figure 1 As shown, in the cochlear implant device for multi-channel cochlear optical stimulation involved in the present invention, the multi-channel optical stimulation device 4 is implanted into the cochlea 1, and the sound signal is converted into an appropriate electrical signal by the voice signal acquisition device 8, and then processed by the voice signal and The encoding device 7 extracts the characteristic information of the sound signal, and these characteristic information will be used to adjust the electrical parameters of the multi-channel optical pulse control circuit 6, thereby changing the output parameters of the optical pulses of each channel of the multi-channel optical stimulation device 4, and the optical pulses pass through the output port 5 Stimulate the auditory nerve of the cochlea 1 to cause the auditory nerve to be excited to form hearing, the higher frequency components in the sound signal will control the light pulse parameters of the...

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Abstract

The invention relates to a multi-channel light stimulation-based cochlear implant device. The device comprises a multi-channel light stimulation device, a multi-channel light pulse control circuit, a voice signal acquisition deice and a voice signal processing and encoding device, wherein the device acquires a voice signal and encodes the voice signal into a light stimulation signal; and the light stimulation signal stimulates cochlear auditory nerve through a cochlea-implanted multi-channel light pulse output port to cause nerve impulse so as to form hearing in a central nervous system. The multi-channel light stimulation-based cochlear implant solves the problem of compatibility of a stimulating electrode and biological tissue in the electronic cochlear implant and also solves the problem of mutual interference between stimulating channels caused by current diffusion in the tissue.

Description

technical field [0001] The invention belongs to the technical field of restoring auditory function by light stimulation, and in particular relates to a device for restoring auditory function by using a multi-channel laser stimulator implanted in the cochlea. Background technique [0002] Deafness caused by diseases, drugs or other reasons is increasing year by year. According to the data released by the Ministry of Health, there are 27 million deaf-mute patients in my country, of which 8 million are severe deafness. The incidence rate of newborns is about 0.6%. There are nearly 200,000 dumb children. Cochlear implants are the only clinical means recognized by the medical community that can restore hearing to patients with bilateral severe or extremely severe sensorineural deafness. [0003] Cochlear implant technology emerged in the 1980s and has experienced the development of single-channel cochlear implants to multi-channel cochlear implants, with more than 20 years of cli...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/18
Inventor 侯文生胡宁吴小鹰郑小林杨军廖彦剑
Owner CHONGQING UNIV
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