Apparatus and method for determining the relative position and orientation of neurostimulation leads
First Claim
1. A system, comprising:
- an implantable pulse generator configured to be operably coupled to a plurality of electrodes, the plurality of electrodes including activated electrodes and non-activated electrodes,wherein the implantable pulse generator includes control circuitry configured to;
deliver current using all of the activated electrodes;
determine an amplitude of a field potential at each of all the non-activated electrodes; and
determine relative positions of each of the non-activated electrodes based on each of the determined field potential amplitudes.
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Accused Products
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.
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Citations
20 Claims
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1. A system, comprising:
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an implantable pulse generator configured to be operably coupled to a plurality of electrodes, the plurality of electrodes including activated electrodes and non-activated electrodes, wherein the implantable pulse generator includes control circuitry configured to; deliver current using all of the activated electrodes; determine an amplitude of a field potential at each of all the non-activated electrodes; and determine relative positions of each of the non-activated 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)
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17. A system configured to be connected to a plurality of electrodes, comprising:
an implantable pulse generator including control circuitry configured to; deliver a current to a source electrode in the plurality of electrodes; receive the delivered current from a return electrode in the plurality of electrodes; measure a field potential at all other electrodes in the plurality of electrodes other than the source electrode and the return electrode; and determine a relative electrode position for each of all the other electrodes in the plurality of electrodes based on the measured field potential at all the other electrodes. - View Dependent Claims (18)
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19. A non-transitory machine-readable medium including instructions, which when executed by a machine, cause the machine to:
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instruct a current source to deliver a current from a source electrode in a plurality of electrodes to a return electrode in the plurality of electrodes; measure a field potential at all other electrodes in the plurality of electrodes other than the source electrode and the return electrode; and
,determine a relative electrode position for each of all the other electrodes in the plurality of electrodes based on the measured field potential at all the other electrodes. - View Dependent Claims (20)
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Specification