Simultaneous stimulation for low power consumption

A - Human Necessities – 61 – N

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A61N 1/36 (2006.01) H04R 25/00 (2006.01)

Patent

CA 2602895

A stimulation system including a stimulator having a multi-channel electrode array utilizing a monopolar electrode configuration. A processor is operatively coupled to the stimulator. The processor is configured to determine a channel interaction (CI) sequence using simultaneous, sign- correlated pulses and channel interaction compensation. The CI sequence has a CI pulse rate and a CI mean pulse amplitude, and produces resulting potentials that are substantially equal to desired potentials at given positions relative to the multi-channel array. The CI sequence may include temporal gaps between pulses, wherein the processor may be configured to increase the CI pulse rate, such that the temporal gap between pulses is decreased. Furthermore, the processor may be configured to reduce the pulse amplitude of the CI sequence while increasing pulse phase duration, such that charge per pulse remains substantially unchanged and the temporal gap between pulses is decreased.

Système de stimulation à stimulateur qui comprend un réseau d'électrodes multicanal utilisant une configuration en électrode monopolaire. Un processeur, relié opérationnel au stimulateur, est capable de déterminer une séquence d'interaction de canal (CI) par des impulsions simultanées à corrélation de signe et une compensation d'interaction de canal. La séquence CI a une fréquence d'impulsion CI et une amplitude d'impulsion moyenne CI, et produit des potentiels sensiblement égaux aux potentiels souhaités à des positions données par rapport au réseau multicanal. La séquence CI peut comprendre des intervalles de temps entre impulsions, et le processeur peut être conçu pour augmenter la fréquence d'impulsion CI, de sorte que l'intervalle de temps entre impulsions diminue. Par ailleurs, le processeur peut être conçu pour réduire l'amplitude d'impulsion de la séquence CI tout en augmentant la durée de phase d'impulsion, de sorte que la charge par impulsion reste sensiblement inchangée et que l'intervalle de temps entre impulsions diminue.

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