Research Of Neural Signal Acquisition Module And Neurostimulation Module

Clinical studies have shown that deep brain neurostimulation could significantlyimprove pain relief. Several major approaches have been used to ease pain, such as oralintake of medication, but deep brain neurostimulation is more efficient and with less sitespecifics. However, the traditional experiment devices are usually big and heavy, it isinconvenient to do animal experiments with these devices. To meet the practical needs, thewearable neural signal acquisition module and neurostimulation module should bedeveloped. This thesis has done some research on the wearable neural signal acquisitionmodule and neurostimulation module for studying of pain management.With commercial wireless chips and the SCM technology, we have developed theneural signal acquisition module and the neurostimulation module. Using the IDEdevelopment software, we achieve neural signal acquisition and digitization through ADCconfiguration, achieve wireless communication by using commercial wireless chips,achieve controlled pulse generator with C8051. A custom-made LabVIEW software couldrecord the signals and trigger the stimulation. The collected waveforms can be shown onthe screen of PC and the control instructions can be sent with a graphics user interface.Self-designed PCB and dielectric antenna reduce the module size very well. The module ispowered by rechargeable lithium battery with20-hour battery life.The experiment results showed that the neural signal acquisition module could recordthe neural signals and the neurostimulation module could generate the desired stimulationpulses. With smaller size, lower power consumption and faster speed, the two modules cantake the place of the traditional experiment devices to do animal experiments.