Implantable neuromuscular stimulators used in animal behavior experiments

The design of implantable neuromuscular stimulator used in the behavior experiments desires that the stimulator has maximum functionality to meet the need of the implanted device, such as small size, reliable, safe and easy to use. In this thesis, we consider the basic problem above and two types devices of the stimulator are developed. The first device developed uses standard CMOS IC, and it can provide bipolar interval pulse sequence as electrical stimulation in order to avoid the effect of direct current The function of the second device is specified by software rather than by silicon hardware, allowing a single device to be programmed for different functions. The two devices have been successfully used in animal experiments, especially on rat´s experiments.