An intelligent system in intravenous anesthetics based on Atmega 128

This paper introduces to take Atmega128 as the core to constitute a system of serial data collection and controlled. This system can exchange information with medical equipments through serial communication and collect data through A/ D. The system can also deliver the instruction to control the medical equipments. The functions of the system include: data sampling, communication and calculation. The simple structure of the system makes it fit for designing portable medical equipment. This system has already been successfully applied in target controlled infusion according to pharmacodynamic parameters of intravenous anesthetics. It can control the depth of anesthesia by adjusting the level of plasma concentrations. The system has the advantages of high precision, low power and convenience to apple. It has been used in the control of clinical anesthesia.