| Summary: | 碩士 === 國立臺北科技大學 === 電腦與通訊研究所 === 101 === Purpose of this study is based on pulsed RF field by electrical stimulation can be used to block the dorsal root ganglion, sympathetic role theory also via the electro-acupuncture or transcutaneous electrical nerve stimulation in the peripheral nerves. Improve the traditional use by the electric field in the low-frequency transcutaneous electrical nerve stimulation is limited by epidermal impedance is too high to directly stimulate the pain points, and the release of endorphins enough shortcomings. While the electric acupuncture analgesia also more durable than the previous more. This study will use clinical PRF uses electrical stimulation parameters to be used as electro-acupuncture and transcutaneous electrical nerve stimulation for peripheral nerve stimulation parameters PRF treatment.
This PRF peripheral nerve stimulation is mainly divided into two parts, one for the PRF electrical stimulation parameters, and the other for the impedance measurement. Electrical stimulation parameters of the output square wave control by microprocessor MOS switch and then through the inductor-capacitor resonant out 500K, 1,2,4 MHz high-frequency carrier. At low frequencies there are four different groups of Pulse rate changes with doing by the DC to DC converter lift stimulation parameters to determine the amplitude of intensity. While the amplitude of the stimulation intensity values to seven-segment display for added security. In the impedance measurement part, mainly to be able to match the location and identification detect electrical stimulation of acupuncture points to stimulate further degree simultaneously. Via microchip control impedance chip AD5933, respectively, measured out 500K, 1M, 2M, 4M Hz complex impedance values. And the use of LCD real-time display of the real part and the imaginary part of impedance to make observations. In the future, we will take advantage of this electrical stimulator for human trials to validate this new analgesic electrotherapy for the better of the idea.
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