Wireless power and data transmission system for visual prosthesis

A data transmission system and wireless energy technology, applied in the field of biomedical engineering, can solve the problems of complex demodulation circuit, increase the difficulty and volume of demodulation circuit, and achieve the effect of simple circuit, reduced volume and easy implementation

Inactive Publication Date: 2011-11-30
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The demodulation circuit of FSK is relatively complicated, which increases the difficulty and volume of the demodulation circuit in the body

Method used

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  • Wireless power and data transmission system for visual prosthesis
  • Wireless power and data transmission system for visual prosthesis
  • Wireless power and data transmission system for visual prosthesis

Examples

Experimental program
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Embodiment

[0027] like figure 1 As shown, this embodiment includes: an external wireless device located outside the body, an internal wireless device located inside the body, and a data reverse transmission module, wherein: the external wireless device receives the encoded image signal and transmits it to the internal wireless device through wireless after modulation. The wireless device in the body rectifies and demodulates and receives the driving power and the received signal respectively. The data reverse transmission module monitors the impedance and temperature information in the body and sends them to the wireless device outside the body through a wireless connection in turn. The reverse demodulation circuit in the body is based on Impedance and temperature information is recovered from signals received by the external wireless device and input power is adjusted by the external device.

[0028] like figure 2 As shown, the external wireless device includes: an encoding circuit, a...

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Abstract

A wireless energy and data transmission system for visual prostheses in the technical field of biomedical engineering, including: an external wireless device located outside the body, an internal wireless device located inside the body, and a data reverse transmission module. The external wireless device receives encoded images After the signal is modulated, it is transmitted wirelessly to the wireless device in the body. The wireless device in the body rectifies and demodulates and receives the driving power and the received signal respectively. The data reverse transmission module monitors the impedance and temperature information in the body, and transmits the data to the external coil through the internal coil , the external reverse demodulation circuit recovers the impedance and temperature information, and the external device adjusts the input power according to the state in the body. The invention has the characteristics of simple circuit, small volume, high efficiency and the like.

Description

technical field [0001] The invention relates to a device in the field of biomedical engineering, in particular to a wireless energy and data transmission system for a visual prosthesis. Background technique [0002] A visual prosthesis is an artificial organ that restores vision to blind patients by stimulating the visual nervous system. In theory, a visual prosthesis can be realized by electrical nerve stimulation anywhere on the visual pathway. The visual prosthesis mainly includes the following parts: external information collection part and signal processing part, internal energy recovery, data demodulation, nerve stimulator, electrodes and data feedback part, during which signals and energy are transmitted through radio frequency wireless transmission. Among them, the implanted device in the body has certain requirements for volume, safety and reliability. First, the signal collection part collects image or text information, transmits the information to the signal pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/08
Inventor 柴新禹刘博吴小贝吴开杰
Owner SHANGHAI JIAO TONG UNIV
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