摘要目前临床上使用的神经刺激器都存在刺激脉冲单一、供电寿命短的缺点。本文 对神经刺激器工作方法做了一些研究，提出了一种基于电磁耦合供电的神经刺激器。 主要内容有以下几个方面：

1。提出了电磁耦合供电、神经刺激器以及无线通信三个模块的总体设计方案。给 出了各模块硬件与软件的具体设计思想和实现方法。83853

2．完成了电磁耦合供电的神经刺激器系统样机研制、各个功能模块的测试以及 整个系统的联调。实现了：①当无线发射器的功率为 1W，输入电压 9V 时，接收器 产生一个 300kHz 的交流信号，该信号通过整流滤波稳压输出一个 5V 的直流电压， 为锂电池充电；②用单片机产生 2 路 PWM 波，经过电压提升、电流源和 H-桥电路 输出所需的刺激脉冲；③完成了电磁耦合供电的神经刺激器系统的软硬件调试，通 过无线通信装置控制脉冲频率在 1-1200Hz、脉冲宽度在 50-1000us 以及脉冲幅度在 0-10mA 范围内可调。

本设计仅实现了神经刺激器的基本要求，若将该系统应用于临床，目前还存在 集成性和安全性等问题。因此最后提出了下一步的改进思路。

毕业论文关键词：电磁耦合；神经刺激器；无线通信；低功耗；微型化

Abstract The clinical use of neurostimulator has some shortcomings,such as single stimulus pulse and short power supply life。 This paper contducts a research on its design method , and proposes a new neurostimulator based on electromagnetic coupling power supply。 The ntmain work is as following。

1。The overall design scheme of the electromagnetic coupling power supply, Neurostimulator   and   wireless   communication   are   presented。The   the   detailed design idea and implementation method of each module’s hardware and software are provided。

2。The design and production of electromagnetic coupling power supply system of neurostimulator prototype , test for each functional module and the combined adjusting of the whole system are completed 。The result of the design shows: When the wireless transmitter’s power is 1W, and the input voltage is 9V, the receiver generates an AC signal which is 300kHz。 A DC voltage of 5V is provided by the signal through rectifier, filter and regulator, which charges the lithium battery。; MCU generates two PWM waves,and by means of voltage boost,current source and H-bridge circuit the desired stimulation pulse is output; The debugging of software and hardware of electromagnetic coupling power supply system of neurostimulatorr is completed。 By means of a wireless communication device, the pulse frequency is controlled in the range of 1-1200Hz, the pulse width is adjustable in the range of 50-1000us and the pulse amplitude is adjustable in the range of 0-10mA。

Currently,the system has just basically achieved the design requirements of neurostimulator。 If we want to apply the system to the practical application in clinical, there are still some problems about integration and safety to be solved。 Therefore, at the end of this article, improvement ideas are put forward。

Keywords: Electromagnetic coupling; Neurostimulator; Wireless communication; Low power consumption;Miniaturization

目 录

第一章 绪论 1

1。1 课题研究背景及意义 1

1。2 神经刺激器国内外研究现状 1

1。3 神经刺激器的现状分析 2

1。4 电磁耦合供电技术的现状分析 3

1。5 论文主要研究内容