Impedance tomography apparatus based on microneedle electrodes and micro-traumatic measuring method thereof
Title：
Impedance tomography apparatus based on microneedle electrodes and micro-traumatic measuring method thereof
Application Number：
 200610114600
Application Date：
 2006/11/17
Announcement Date：
 2007/05/23
Pub. Date：
Publication Number：
 1965755
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 A61B 5/053
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Liu Ran, Liu Jing, Chen Qixiao, Wang Guangzhi, Ding Hui
Key Words：
 microneedle electrodes, impedance, tomography apparatus, micro-traumatic measuring
Abstract：
 The invention relates to a resistance chromatography imager based on micro electrode, and relative micro-cut measurement, wherein it uses micro electrode to span the horny layer with high resistance; it can replace traditional surface electrode, to be used as current activator and sensor to sense voltage signal; the measured signal via magnification and filter is input into PC to be processed and displayed via gray diagram or colorful diagram, to represent the resistance distribution. The invention can reduce the effect of skin resistance in current activation and voltage signal collection, with high signal-noise ratio and reduced error, to improve the calculation accuracy and image resolution.
Claim：
Priority：
PCT：
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Impedance tomography apparatus based on microneedle electrodes and micro-traumatic measuring method thereof



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2008-4-17
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