Patent ID: 8996115
Filing Date: 2015-03-31
Classification: A61N

Abstract:
1. A method for balancing charges provided by an implantable medical device for providing stimulation to a patient, said method comprising the steps of: providing an electrode near a stimulation region of the patient; providing a waveform generating circuit connected to the electrode; the waveform generating circuit generating a first active portion of a stimulation waveform for stimulating the stimulation region using the electrode, said first active portion of the stimulation waveform having a first finite time period and a first polarity and inducing a first electrical charge at the stimulation region; the waveform generating circuit generating a second active portion of the stimulation waveform for stimulating the stimulation region using the electrode after providing the first active portion of the stimulation waveform, said second active portion of the stimulation waveform having a second finite time period and a second polarity opposite the first polarity and including a portion having a shape other than a square wave and other than a decaying exponential, with said second active portion of the stimulation waveform substantially canceling said first electrical charge at the stimulation region of the patient, wherein said second active portion of the stimulation waveform has a different shape than the first active portion of the stimulation waveform.