The System Design Of Intellectual Brain's Electric Therapeutic Instrument Based On DDS

Electricity stimulates cerebral fastigial nucleus to increase regional cerebral blood flow( rCBF) and narrows the volume of blocking up without following brain metabolic rate , therefore its function on lack of brain blood may be helpful. The circulation function therapeutic instrument of brain based on direct digital synthesis (DDS) technology uses the domestic newest scientific findings and others in foreign countries. Adopting the DDS technology directly, it produces the safe, valid treatment. Through pasting heart electric electrode on body surface, it introduces electric current to cerebral fastigial nucleus (FN) without damage in order to improve the state of brain blood supply and nerve conducted and something of lacking proper care to lose the symptom of coordinating with a net, increase cerebral blood flow, reduce downright bad neuron figure, district of penumbra, lighten brain perinemotoma. Consequently it improves brain circulation function of function.A system design of the circulation function therapeutic instrument of brain is presented in this paper. An integrated prototype is composed of AT89C55 used as system controlling module and A/D, D/A converter and liquid crystal display device used as a terminal display module to realize the output of dynamic load and permanent flow through digital synthesis. This paper discusses the whole structure of system, and present in detail the working principle, idea of the software design, and the effectiveness of the design.