Patent ID: 7027860
Filing Date: 2006-04-11
Classification: A61N

Abstract:
1. An implantable electrical stimulator for neural prosthesis powered by and operative in response to an externally applied radio frequency (RF) signal having a power component and a control component for producing stimulation pulses operative to stimulate function of muscles and organs in a patient comprising: a power storage circuit including a passive energy storage device responsive to the power component of the RF signal for storing energy without batteries to a selected level at least sufficient to power the electrical stimulator for an impending stimulation cycle; a pulse generating circuit coupled to the power storage circuit for receiving stored energy therefrom and being operative to produce the stimulation pulses at a selectable output level and predetermined rate and; a control circuit coupled between the power storage circuit of the pulse generating circuit being responsive to the energy level stored in the storage circuit for controlling the output level of the stimulator pulses.