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Catheter for use in a system for monitoring mucosal damage in hollow viscous organs
专利权人:
发明人:
申请号:
EP01116731.9
公开号:
EP1174080B1
申请日:
2001.07.18
申请国别(地区):
EP
年份:
2012
代理人:
摘要:
An impedance spectroscopy system for monitoring ischemic mucosal damage in hollow viscous organs comprises a sensor catheter (12a-12d) and an impedance spectrometer (20) for electrically driving the catheter to obtain a complex tissue impedance spectrum. Once the catheter is in place in one of a patients hollow viscous organs, the impedance spectrometer obtains the complex impedance spectrum by causing two electrodes in the tip of the catheter to inject a current into the mucosal tissue at different frequencies, while two other electrodes measure the resulting voltages. A pattern recognition system is then used to analyze the complex impedance spectrum and to quantify the severity of the mucosal injury. Alternatively, the complex impedance spectrum can be appropriately plotted against the spectrum of normal tissue, allowing for a visual comparison by trained personnel.
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