中国医学装备2016，Vol.13Issue(1)：13-16,4.DOI:10.3969/J.ISSN.1672-8270.2016.01.004
医用脉冲刺激器的设计
Research on the design of medical pulse stimulator
摘要
Abstract
Objective:To investigate the relationship between the sense of touch and cortex by medical imagining method.Methods: Base on 51 single chip microcomputer create pulse width modulation, the signal from the 51SCM been amplified have been used drive high frequency switch, the high frequency switch one side join air pump the other side join PVC tube, the PVC tube end join figure or lip, the purpose is through control high frequency switch connect and disconnect control airflow frequency, under the MRI platform airflow pulse stimulate figure and chip can catch the S1, S2 image from the MRI about cortex change.Results: Through image processing get need image, using algorithm get different between unstimulate imagine and stimulated imagine, the result is different parts and different frequency will get different parts in cortex and with increase of frequency the intensity of signal in the cortex increase.Conclusion: under the fMRI platform through stimulate figure and lip can get the cortex area excitment change between the unstimulate and stimulate.关键词
刺激器/脉冲/磁共振/手指/嘴唇Key words
Stimulator/Pulse/Magnetic resonance/Figure/Lip分类
医药卫生引用本文复制引用
张敏刚,郑建民,李军,印弘,李向东,余厚军,张劲松..医用脉冲刺激器的设计[J].中国医学装备,2016,13(1):13-16,4.基金项目
陕西省社会发展科技攻关项目(2013K12-20-06)、陕西省中药管理局课题(13-LC135)"脊髓损伤后穴位按压与感觉功能变化的功能磁共振研究" （2013K12-20-06）
