Implantable electrode positioning
First Claim
1. A method of surgically positioning an electrode array at a desired implantation location relative to a nerve, the method comprising:
- implanting a temporary probe electrode adjacent to the nerve and at a location which is caudorostrally separate to the desired implantation location of the electrode array;
temporarily fixing the implanted position of the probe electrode relative to the nerve;
wherein the probe electrode is fixed by being temporarily anchored upon a vertebra, within the epidural space;
during implantation of the electrode array, applying electrical stimuli from one of the temporarily fixed probe electrode and the electrode array, to evoke compound action potentials on the nerve;
sensing, from at least one electrode of the other of the temporarily fixed probe electrode and the electrode array, the compound action potentials evoked by the stimuli; and
determining from the sensed compound action potentials a position of the electrode array relative to the nerve.
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Accused Products
Abstract
A method of surgically positioning an electrode array at a desired implantation location relative to a nerve. A temporary probe electrode is temporarily positioned adjacent to the nerve and at a location which is caudorostrally separate to the desired implantation location of the electrode array. The implanted position of the probe electrode is temporarily fixed relative to the nerve. During implantation of the electrode array, electrical stimuli are applied from one of the temporarily fixed probe electrode and the electrode array, to evoke compound action potentials on the nerve. Compound action potentials evoked by the stimuli are sensed from at least one electrode of the other of the temporarily fixed probe electrode and the electrode array. From the sensed compound action potentials a position of the electrode array relative to the nerve is determined.
281 Citations
9 Claims
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1. A method of surgically positioning an electrode array at a desired implantation location relative to a nerve, the method comprising:
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implanting a temporary probe electrode adjacent to the nerve and at a location which is caudorostrally separate to the desired implantation location of the electrode array; temporarily fixing the implanted position of the probe electrode relative to the nerve; wherein the probe electrode is fixed by being temporarily anchored upon a vertebra, within the epidural space; during implantation of the electrode array, applying electrical stimuli from one of the temporarily fixed probe electrode and the electrode array, to evoke compound action potentials on the nerve; sensing, from at least one electrode of the other of the temporarily fixed probe electrode and the electrode array, the compound action potentials evoked by the stimuli; and determining from the sensed compound action potentials a position of the electrode array relative to the nerve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification