Visual function restoration system based on external electrical stimulation by endocranium

A technology for repairing the system and dura mater, which is applied in artificial respiration, physical therapy, ophthalmology treatment, etc. It can solve the problems of difficult surgery, surgical infection, cerebrospinal fluid leakage, etc., and achieve the effect of avoiding surgical infection and restoring visual function

Inactive Publication Date: 2010-11-10
THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA
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Problems solved by technology

[0007] A comprehensive analysis of the above three visual prosthesis repair technologies shows that retina-based vision repair requires more than 30% of the residual function of the blind patient's retina; optic nerve-based vision repair also relies on blind patients with good retinal residual function, and the operation is difficult ; The visual cortex is th

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  • Visual function restoration system based on external electrical stimulation by endocranium
  • Visual function restoration system based on external electrical stimulation by endocranium

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Embodiment Construction

[0025] Preferred embodiments of the present invention will be described in detail below.

[0026] see figure 1 , a visual function restoration system via epidural electrical stimulation, including an image acquisition module, an image information extraction and compression encoding module, an electrical stimulation signal generation module and a microelectrode array.

[0027] The image acquisition module can use a ccd camera device; the image information extraction and compression encoding module adopts a DSP chip, uses the image acquisition module to collect image information, generates a digital image, and obtains image brightness and edge contour light information, and generates and image information through compression encoding Corresponding to the control signal, the compression encoding process includes the steps of non-uniform compression of the spatial resolution of the image information and gray compression of four gray levels of 0, 85, 170, and 255 that are evenly di...

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Abstract

The invention relates to the technical field of medical equipment, in particular to a visual function restoration system. Compared with the existing visual restoration system based on visual cortex stimulation, the visual function restoration system of the invention performs electrical stimulation on visual cortex by endocranium; and an implant is placed on the endocranium, the endocranium does not need to be opened in the operation process, thus avoiding risks such as operation infection, cerebrospinal fluid leakage and the like. The visual function restoration system comprises an image acquisition module, an image information extraction and compression coding module, an electrical stimulation signal generation module and a microelectrode array, wherein the image information extraction and compression coding module acquires image information by the image acquisition module, and then generates digital image and a control signal corresponding to the image information by compression coding processing; the electrical stimulation signal generation module controls the microelectrode array to output a corresponding electrical stimulation signal according to the control signal output by the image information extraction and compression coding module; and the microelectrode array is used for outputting the electrical stimulation signal.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a visual function restoration system. Background technique [0002] According to the report of the World Health Organization, more than 160 million people around the world suffer from varying degrees of vision impairment, of which about 45 million people suffer from blindness. Clinical data show that retinal degenerative diseases, such as retinitis pigmentosa (RP), age-related macular degeneration (Age-Related macular Degeneration, AMD), etc., are the main diseases causing blindness. People try multiple methods such as operation and medicine to help patients recover their eyesight, but the effects of various methods are not satisfactory at present. The research and development of implantable nerve electrical stimulation technology to reconstruct visual function is becoming an important direction for blind or near-blind patients to regain part of their visual function. ...

Claims

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Application Information

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IPC IPC(8): A61N1/36A61F9/00
Inventor 阴正勤侯文生陈丽峰胡宁郑小林姚军平王星
Owner THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA
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