Patent ID: 7873418
Filing Date: 2011-01-18
Classification: A61N

Abstract:
1. A neural-stimulation system for varying stimulation parameters, comprising: at least one neural-stimulation lead, wherein at least one of the leads has at least one neural-stimulation electrode; and a neural-stimulation device operatively coupled to the at least one neural-stimulation lead, wherein said device includes a strength-duration curve of neural excitation, wherein the strength-duration curve of neural excitation contains measured stimulation-amplitude values at corresponding stimulation-pulse durations that achieve reduction of tremor via thalamic stimulation, wherein the neural-stimulation device is configured to: provide neural stimulation having a plurality of stimulation parameters including a stimulation amplitude, a stimulation frequency, a stimulation pulse duration, an electrode-firing pattern, and a set of one or more electrode-polarity-firing conditions, pseudo-randomly vary at least a first of the stimulation parameters, and change a value of a second of the stimulation parameters based upon having varied the first stimulation parameter and based upon the strength-duration curve of neural excitation.