Artificial cochlea device

A cochlear implant and external circuit technology, applied in the field of medical devices, can solve the problem of high cost of cochlear implant products

Inactive Publication Date: 2009-07-29
上海耳蜗医学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent uses 0.18um integrated circuit technology. Although integrated circuit technology can reduce the volume of cochlear implants, it can also ensure the quality and reliability of cochlear implants, but the cost of cochlear implants is relatively high.

Method used

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  • Artificial cochlea device

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Embodiment Construction

[0012] An embodiment of the cochlear implant device of the present invention is as follows: figure 1 As shown, including in vitro circuits and in vivo circuits, both in vitro and in vivo circuits adopt electromagnetic coupling for energy transmission and signal transmission:

[0013] The external circuit includes a sound collection unit, an analog-to-digital converter, an encoder, a modulator, a power amplifier, a manual adjustment sound device, an external antenna, a DC power supply, a permanent magnet and an associated armature,

[0014] Sound collection unit: used to collect voice signals, and send the collected voice signals to an analog-to-digital converter for conversion, such as a microphone. The bandwidth range of the voice signal received by the microphone is 300-6000Hz.

[0015] Analog-to-digital converter: used to convert the collected analog voice signal into digital voice signal. The signal is then encoded and modulated and loaded onto a power carrier for transmi...

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Abstract

The invention discloses an artificial cochlea device, which comprises an external circuit and an internal circuit which are mutually coupled in an electromagnetic wireless mode. A sound acquisition unit of the external circuit acquires voice signals; an analog-digital convertor converts the acquired simulative voice signals into digital voice signals; a coder codes the digital voice signals; a power amplifier emits high-power carrier waves; and a modulator loads the coded digital voice signals onto power carrier waves and emits the digital voice signals through an external antenna. An internal antenna of the internal circuit receives the power carrier waves and the modulated voice signals; a rectifying circuit converts AC energy of the received power carrier waves into DC energy to be used for the internal circuit; an electric stimulation generator carries out demodulation, sound signal mapping and stimulating pulse generation on the received voice signals; and a channel select switch conducts and selects electrodes in different electrode arrays by time-sharing. The electrodes directly stimulate auditory nerves so as to achieve the aim of repairing auditory sensation. The device has the advantages of convenient use and low cost.

Description

technical field [0001] The invention relates to a medical device, in particular to a cochlear artificial device. Background technique [0002] Since the 1960s, people have begun research on cochlear implants. In the 1980s, multi-channel cochlear implants gradually became the mainstream of cochlear implant technology. After entering the 1990s, multi-channel cochlear implants have been widely used. At present, Cochlear Company of Australia, Advanced Bionics Company of the United States and MED-EL Company of Austria are the three main suppliers of cochlear implant products, but the price of cochlear implant products of these three companies is between $25,000-$30,000, which is far beyond the reach of developing countries. Affordable price ceiling. [0003] The working principle of a cochlear implant is to use an acoustic-electric transducer to replace the sensory cells that have lost function in the cochlea of ​​a deaf person, and to directly stimulate the auditory nerve thro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F11/04A61F2/18A61N1/36A61N1/372
Inventor 杰洛德.勒伯
Owner 上海耳蜗医学科技有限公司
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