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Apparatus and method for determining the relative position and orientation of neurostimulation leads
专利权人:
James R. Thacker;Kerry Bradley;Michael A. Moffitt
发明人:
Kerry Bradley,James R. Thacker,Michael A. Moffitt
申请号:
US12856905
公开号:
US09192760B2
申请日:
2010.08.16
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A method for determining whether the relative position of electrodes used by a neurostimulation system has changed within a patient comprises determining the amplitude of a field potential at each of at least one of the electrodes, determining if a change in each of the determined electric field amplitudes has occurred, and analyzing the change in each of the determined electric field amplitudes to determine whether a change in the relative position of the electrodes has occurred. Another method comprises measuring a first monopolar impedance between a first electrode and a reference electrode, measuring a second monopolar impedance between second electrode and the reference electrode, measuring a bipolar impedance between the first and second electrodes, and estimating an amplitude of a field potential at the second electrode based on the first and second monopolar impedances and the bipolar impedance.
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