Programming Stimulus Waveform Of Multi-channel Physiological Recorder

Multi-channel physiological recorder is one of the most important apparatus, which accomplish sampling and recording physiological information about an organism. As the techniques of Cardiac Electrophysiology and Interventional treatment of cardiovascular diseases develop, it has been an indispensable device on monitoring of physiological parameters in surgical intervention. Intelligent multi-channel analyzer of biological invented by South China Medical Power can provide the function of programming, as well as amplifying, displaying, recording and analyzing samples of biological signals through 8 channels, further more, it incorporates the advantages of high-precision, high-reliability and wide scope of application in one program-controlled stimulator. This device is a brand new apparatus in structure, and especially applicable to Biological Research and sampling and analyzing data in teaching sections. It adopts the structure of USB line based and large-scaled programmable integrated circuits——FPGA technique. The Experimental treatment system is composed of microcomputer, bio-multi-channel analyzer system hardware and bio-multi-channel analyzer system software.The part of Built-stimulate can detect the Electrophysiological properties of different parts of the heart by way of electrostimulating, induce and terminate cardiac arrhythmia for analyzing its mechanism, evaluate drugs and its effects on Electrophysiological properties of heart, as well as compare the effects between drug and non-drug therapy in curing Arrhythmia.During my internship in the South China Medical electricity, I accomplished the programming of the Built-in stimulus waveform, realized 4 kinds of waveforms including Rectangular, Sine, Triangle and Trapezoid, additionally, 6 Stimulus waveforms, including Single, Continuous single, Double, Continuous double, String and Continuous string, are performed to each waveform. The return of the established parameters of the corresponding function value facilitates the calling during programs, and improves the portability of the program. As a result, the Structure of the Program is optimized, the redundancy is reduced, and the efficiency is improved.