一种新型多功能诱发电位刺激器的研制

摘要

设计了一种基于FPGA的用于诱发电位系统的刺激器,利用FPGA实现诱发电位所需的光刺激、声刺激和电流刺激.可用于视觉诱发电位、听觉诱发电位及体感诱发电位等多种自发和诱发电位等生理检查中.与传统的诱发电生理刺激系统相比,该设计简化了电路、功能多、体积小、刺激输出准确可靠,应用范围广,能很好地满足诱发电位检测的性能要求.%This paper designs a kind of evoked potential stimulator based on FPGA, using the FPGA to achieve light, sound and current stimulation used in evoked potentials. It can be used for visual evoked potentials, auditory evoked potentials and the somatosensory evoked potentials and so other kind of spontaneous and evoked potential check. The design is better in the simplifying the circuit and smaller volume, and much more functions than the traditional evoked stimulation system. Its outputs are accurate and reliable and application range is wide. It can meet the requirements of evoked potential detection very well.