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US 2006/0224187 A1Published application
Apparatus and methods for detecting position and migration of neurostimulation leads
AssigneeBoston Scientific Neuromodulation Corporation
InventorsKerry Bradley, Sunil Kapoor
Life of this patent
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Abstract
Apparatus and methods for detecting lead migration through the use of measured artifactual data about the tissue in the vicinity of the lead.
Claims21
A method to determine whether a neurostimulation lead has migrated, comprising:
- measuring the impedance of tissue in the vicinity of an electrode on the neurostimulation lead to establish a baseline impedance value;
- measuring the impedance of the tissue in the vicinity of the electrode at a subsequent time to establish a subsequent impedance value;
- and
- determining whether the neurostimulation lead has migrated by comparing the subsequent impedance value to the baseline impedance value.
1 more element
A neurostimulation system for use with an implantable lead including at least one lead electrode, the neurostimulation system comprising:
- a pulse generator including a lead connector;
- circuitry, operably connected to the lead connector, to measure the impedance of tissue in the vicinity of the at least one lead electrode to establish a baseline impedance value and measure the impedance of the tissue in the vicinity of the at least one lead electrode at a subsequent time to establish a subsequent impedance value;
- and
- circuitry to determine whether the implantable lead has migrated by comparing the subsequent impedance value to the baseline impedance value.
1 more element
A method to determine the relative position of first and second neurostimulation leads, comprising:
- measuring the impedance of tissue between the first neurostimulation lead and an electrode located in spaced relation to the first and second neurostimulation leads;
- measuring the impedance of tissue between the second neurostimulation lead and the electrode located in spaced relation to the first and second neurostimulation leads;
- and
- comparing the impedance measurements.
1 more element
Dependencies are inferred from the claim text.