Apparatus and method for determining the relative position and orientation of neurostimulation leads
First Claim
1. A method of performing a medical procedure using a plurality of electrodes implanted within a patient, comprising:
- determining the amplitude of a field potential at each of at least one of the electrodes; and
determining the relative positions of the electrodes based on each of the determined field potential amplitudes.
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Abstract
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.
57 Citations
18 Claims
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1. A method of performing a medical procedure using a plurality of electrodes implanted within a patient, comprising:
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determining the amplitude of a field potential at each of at least one of the electrodes; and determining the relative positions of the electrodes based on each of the determined field potential amplitudes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification