摘要
该文提出并设计实现了一种用于神经系统疾病的功能电刺激疗法的可编程无线神经刺激系统。系统由控制器和神经刺激器两部分组成,控制器将脉冲参数经无线传递给刺激器,刺激器根据接收到的参数产生电荷平衡的双向脉冲。通过在刺激器中利用ADC对输出的双向脉冲采样,再将采样结果与预置的幅值比较微调DAC的输出,实现电压校准。经过测试,双相电荷平衡刺激脉冲输出准确,脉冲幅值范围为0~5 V可调;刺激频率范围为1~200 Hz可调;脉宽500 ms、1 000 ms、1 500 ms三档可调;刺激持续时间10 s^10 min可调。
The paper proposes and realizes a programmable wireless neural stimulation system which can be used as a solution of functional electrical stimulation to treat neural diseases. The system is composed of two parts： controller and neural stimulator. The controller can transmit pulse parameters to the stimulator wirelessly, and the stimulator can generate bidirectional pulses with charge balance. The simulator takes use of ADCs to sample on the bidirectional pulse output, which compared with preset amplitude to the DAC output voltage to realize the voltage calibration. Through the test, the whole system works stably and the output of the biphasic charge balanced circuit is definite. The stimulator output ranges from 0 to 5 V ajustably, and the frequency ranges from 1 Hz to 200 Hz ajustably, while the pulse width ranges from 500 ms to 1500 ms ajustably. The duration of the stimulation can be set from 10 s to 10 min.
出处
《中国医疗器械杂志》
2016年第1期30-32,共3页
Chinese Journal of Medical Instrumentation
基金
国家自然科学基金(61404043)
中科院重点实验室开放课题(IIMDKFJJ-13-06
IIMDKFJJ-14-04)
合肥工业大学中央高校基本科研业务费专项资金资助(2015HGZX0026)
关键词
无线传输
电荷平衡
电压校准
wireless transmission
charge balance
voltage calibration
