The development of <a href="http://www.ntsearch.com/search.php?q=audio&v=56">audio</a> frequency electrical stimulus system

• Main Authors: Jun-Yuan Tzeng, 曾俊元
• Other Authors: Wei-Chih Hu
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/r6hhv8

碩士 === 中原大學 === 醫學工程研究所 === 92 === Abstract The treatment of electrical-stimulus was an alternative method used in clinics to alleviate pain. It was also used to improve the blood circulation through kneading the local muscular groups. However, the electrical stimulation would fabricate the irritation sensation and would also induce sensory adaptation in the course of treatment. As result, the treatment of electrical stimulation would be dangerous for patients who has lost or who has deteriorated sensation due to the electrical stimulation. It is important to compensate this deficiency of using electrical stimulation. The objective of the study was to develop a stimulation system which would be utilizing dynamic <a href="http://www.ntsearch.com/search.php?q=audio&v=56">audio</a> frequency for making the conformal compensation to the sensory adaptation during the electrical stimulation. The self-developed electrical stimulation system was integrated using MCS-51 chip control and MEPG layer 3 (MP3) <a href="http://www.ntsearch.com/search.php?q=audio&v=56">audio</a> compression technologies. In order to assert the hypothesis that the electrical stimulation would prompt the sensory adaptation, a double blind experiment using three different stimulated methods such as bi-phase TENS, <a href="http://www.ntsearch.com/search.php?q=single&v=56">single</a> frequency, and dynamic <a href="http://www.ntsearch.com/search.php?q=audio&v=56">audio</a> frequency were observed on 38 volunteers. The maximum strength of stimulus was set at 40V and 3 mil-A. The evaluation was on the awareness of stimulation and the undisturbed sensation upon the subjects’ subjective opinions. The results signified that using musical signal in the <a href="http://www.ntsearch.com/search.php?q=audio&v=56">audio</a> frequency stimulation would diminish sensory adaptation more than others. And, most subjects were poised by the stimulation of musical signal.