中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (48): 9024-9028.doi: 10.3969/j.issn.1673-8225.2010.48.023

• 数字化骨科 digital orthopedics • 上一篇    下一篇

视皮质假体中多路信号的无线传输

王丽萍,彭承琳,侯文生,王  星   

  1. 重庆大学生物工程学院, 重庆市  400044
  • 出版日期:2010-11-26 发布日期:2010-11-26
  • 通讯作者: 彭承琳,教授,博士生导师,重庆大学生物工程学院, 重庆市 400044
  • 作者简介:王丽萍★,女,山东省招远市人,汉族,重庆大学生物医学工程学院毕业,硕士,主要从事生物医学信号检测与处理、微系统技术研究。 qingqian_69@163.com
  • 基金资助:

    “ 八六三”计划资助项目(2007AA042300)。

Multichannel signal wireless telemetry technology for visual cortex prosthesis

Wang Li-ping, Peng Cheng-lin, Hou Wen-sheng, Wang Xing   

  1. Bioengineering College, Chongqing University, Chongqing  400044, China
  • Online:2010-11-26 Published:2010-11-26
  • Contact: Peng Cheng-lin, Professor, Doctoral supervisor, Bioengineering College, Chongqing University, Chongqing 400044, China
  • About author:Wang Li-ping★, Master, Bioengineering College, Chongqing University, Chongqing 400044, China qingqian_69@163.com
  • Supported by:

    the National High Technology Research and Development Program of China (“863” Program), No. 2007AA042300

摘要:

背景:信号无线传输系统担任着视皮质假体体内外信息交互的任务,为了使假体能够对刺激区域进行多靶位的有效刺激,需要从体外传输进来多个不同的刺激信号。
目的:提出一种多路信号无线传输系统的设计方案。
方法:利用频分复用技术,能够在单一通道上完成多路信号的传输,整个系统设计分体外发射电路和体内接收电路两部分,且接收电路采用无源设计,减少了供能给植入体带来的危害。在给出具体设计电路的同时,对影响系统传输效率的因素做了进一步分析,通过Multisim仿真实验验证其可行性。
结果与结论:该多路信号无线传输系统可以扩展应用到各类植入式假体的信号传输部分,并且采用体内无源设计,避免了为电路供能给人体带来的伤害,通过初步的仿真实验证明该系统具有可行性,具有广泛的应用前景。

关键词: 视皮质假体, 多路信号, 无线传输, 频分复用, Multisim, 医学植入物

Abstract:

BACKGROUND: Wireless signal telemetry system participates in the information exchange inside and outside visual cortex prosthesis. In order to enable prosthesis to effectively stimulate by multi-targets in the intended region, a variety of diverse extracorporal stimulative signals are needed.
OBJECTIVE: To propose a design proposal of a wireless simultaneous-signal transmission system.
METHDOS: The proposal can transmit simultaneous signal in one channel using the technology of Frequency Division Multiplexing. The whole system design is divided into extracorporal transmission circuit and intracorporal receiving circuit and the latter adopts passive design to reduce the harm of energy supply to the implants. As providing the specific circuit design, we analyze the factors affecting transmission efficiency and validate its feasibility by multisim simulation experiment.
RESULTS AND CONCLUSION: The multichannel signal wireless telemetry system can be applied to the part of signal transmission of various implantable prostheses, which employs passive design to reduce the harm of energy supply to the implants. Preliminary simulated experiments showed the feasibility of this system, which exhibits a wide range of promising applications.

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