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Guide wire with position sensing electrodes for localization via measurement of bioimpedance
Guide wire with position sensing electrodes for localization via measurement of bioimpedance
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机译:带有位置感应电极的导丝,可通过测量生物阻抗进行定位
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摘要
An apparatus includes a guide wire (22) configured to be inserted into a passage of a living body (28), and at least one electrical conductor (34) and electrical insulation covering a surface of the conductor (34) with a gap formed in the electrical insulation at a predefined position on the guide wire. A processor (46) is configured to measure an electrical impedance of the body (28) between the conductor (34) at the gap and one or more electrodes (R1,R2,R3) fixed to the body, and to calculate a location of the gap within the passage in the body in response to the measured impedance.
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