Computationally efficient technique for determining electrode current distribution from a virtual multipole

摘要

A system and method of providing therapy to a patient using a plurality of electrodes implanted within the patient. A virtual multipole configuration is defined relative to the plurality of electrodes. The distance between each of a group of the electrodes and a virtual pole of the virtual multipole configuration is determined. A stimulation amplitude distribution is determined for the electrode group based on the determined distances, thereby emulating the virtual multipole configuration. Electrical energy is conveyed from the electrode group in accordance with the computed stimulation amplitude distribution.

主权项

1. A neurostimulation system, comprising:
a plurality of electrodes; an electrical neurostimulator configured for being coupled to the plurality of electrodes; and an external control device configured for defining a virtual multipole configuration relative to the plurality of electrodes, determining a distance between each of a group of the electrodes and a virtual pole of the virtual multipole configuration, determining a stimulation amplitude distribution for the electrode group based on the determined distances, thereby emulating the virtual multipole configuration, and instructing the electrical neurostimulator to convey electrical energy to the electrode group in accordance with the computed stimulation amplitude distribution.